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Delete deprecated Servlet classes

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(cherry picked from commit b0ad6b2a4b)
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Harald Kuhr
2021-12-14 19:35:13 +01:00
parent 94777ddc96
commit 25f9cc5c55
83 changed files with 3 additions and 17379 deletions
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149
servlet/src/main/java/com/twelvemonkeys/servlet/AbstractServletMapAdapter.java
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@@ -1,149 +0,0 @@
/*
* Copyright (c) 2009, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.util.AbstractMap;
import java.util.AbstractSet;
import java.util.Iterator;
import java.util.Set;
/**
* AbstractServletMapAdapter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: AbstractServletMapAdapter.java#1 $
*/
abstract class AbstractServletMapAdapter<T> extends AbstractMap<String, T> {
// TODO: This map is now a little too lazy.. Should cache entries!
private transient Set<Entry<String, T>> entries;
protected abstract Iterator<String> keysImpl();
protected abstract T valueImpl(String pName);
@Override
public T get(final Object pKey) {
if (pKey instanceof String) {
return valueImpl((String) pKey);
}
return null;
}
@Override
public int size() {
// Avoid creating expensive entry set for computing size
int size = 0;
for (Iterator<String> names = keysImpl(); names.hasNext(); names.next()) {
size++;
}
return size;
}
public Set<Entry<String, T>> entrySet() {
if (entries == null) {
entries = new AbstractSet<Entry<String, T>>() {
public Iterator<Entry<String, T>> iterator() {
return new Iterator<Entry<String, T>>() {
Iterator<String> keys = keysImpl();
public boolean hasNext() {
return keys.hasNext();
}
public Entry<String, T> next() {
// TODO: Replace with cached lookup
return new HeaderEntry(keys.next());
}
public void remove() {
keys.remove();
}
};
}
public int size() {
return AbstractServletMapAdapter.this.size();
}
};
}
return entries;
}
private class HeaderEntry implements Entry<String, T> {
final String key;
public HeaderEntry(final String pKey) {
key = pKey;
}
public String getKey() {
return key;
}
public T getValue() {
return get(key);
}
public T setValue(final T pValue) {
// Write-through if supported
return put(key, pValue);
}
@Override
public int hashCode() {
T value = getValue();
return (key == null ? 0 : key.hashCode()) ^
(value == null ? 0 : value.hashCode());
}
@Override
public boolean equals(final Object pOther) {
if (pOther == this) {
return true;
}
if (pOther instanceof Entry) {
Entry other = (Entry) pOther;
return ((other.getKey() == null && getKey() == null) ||
(getKey() != null && getKey().equals(other.getKey()))) &&
((other.getValue() == null && getValue() == null) ||
(getValue() != null && getValue().equals(other.getValue())));
}
return false;
}
}
}

168
servlet/src/main/java/com/twelvemonkeys/servlet/BrowserHelperFilter.java
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@@ -1,168 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import com.twelvemonkeys.lang.StringUtil;
/**
* BrowserHelperFilter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: BrowserHelperFilter.java#1 $
*/
@Deprecated
public class BrowserHelperFilter extends GenericFilter {
private static final String HTTP_HEADER_ACCEPT = "Accept";
protected static final String HTTP_HEADER_USER_AGENT = "User-Agent";
// TODO: Consider using unmodifiable LinkedHashMap<Pattern, String> instead
private Pattern[] knownAgentPatterns;
private String[] knownAgentAccepts;
/**
* Sets the accept-mappings for this filter
* @param pPropertiesFile name of accept-mappings properties files
* @throws ServletConfigException if the accept-mappings properties
* file cannot be read.
*/
@InitParam(name = "accept-mappings-file")
public void setAcceptMappingsFile(String pPropertiesFile) throws ServletConfigException {
// NOTE: Format is:
// <agent-name>=<reg-exp>
// <agent-name>.accept=<http-accept-header>
Properties mappings = new Properties();
try {
log("Reading Accept-mappings properties file: " + pPropertiesFile);
mappings.load(getServletContext().getResourceAsStream(pPropertiesFile));
//System.out.println("--> Loaded file: " + pPropertiesFile);
}
catch (IOException e) {
throw new ServletConfigException("Could not read Accept-mappings properties file: " + pPropertiesFile, e);
}
parseMappings(mappings);
}
private void parseMappings(Properties mappings) {
List<Pattern> patterns = new ArrayList<Pattern>();
List<String> accepts = new ArrayList<String>();
for (Object key : mappings.keySet()) {
String agent = (String) key;
if (agent.endsWith(".accept")) {
continue;
}
//System.out.println("--> Adding accept-mapping for User-Agent: " + agent);
try {
String accept = (String) mappings.get(agent + ".accept");
if (!StringUtil.isEmpty(accept)) {
patterns.add(Pattern.compile((String) mappings.get(agent)));
accepts.add(accept);
//System.out.println("--> " + agent + " accepts: " + accept);
}
else {
log("Missing Accept mapping for User-Agent: " + agent);
}
}
catch (PatternSyntaxException e) {
log("Could not parse User-Agent identification for " + agent, e);
}
knownAgentPatterns = patterns.toArray(new Pattern[patterns.size()]);
knownAgentAccepts = accepts.toArray(new String[accepts.size()]);
}
}
public void init() throws ServletException {
if (knownAgentAccepts == null || knownAgentAccepts.length == 0) {
throw new ServletConfigException("No User-Agent/Accept mappings for filter: " + getFilterName());
}
}
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
if (pRequest instanceof HttpServletRequest) {
//System.out.println("--> Trying to find User-Agent/Accept headers...");
HttpServletRequest request = (HttpServletRequest) pRequest;
// Check if User-Agent is in list of known agents
if (knownAgentPatterns != null && knownAgentPatterns.length > 0) {
String agent = request.getHeader(HTTP_HEADER_USER_AGENT);
//System.out.println("--> User-Agent: " + agent);
for (int i = 0; i < knownAgentPatterns.length; i++) {
Pattern pattern = knownAgentPatterns[i];
//System.out.println("--> Pattern: " + pattern);
if (pattern.matcher(agent).matches()) {
// TODO: Consider merge known with real accept, in case plugins add extra capabilities?
final String fakeAccept = knownAgentAccepts[i];
//System.out.println("--> User-Agent: " + agent + " accepts: " + fakeAccept);
pRequest = new HttpServletRequestWrapper(request) {
public String getHeader(String pName) {
if (HTTP_HEADER_ACCEPT.equals(pName)) {
return fakeAccept;
}
return super.getHeader(pName);
}
};
break;
}
}
}
}
pChain.doFilter(pRequest, pResponse);
}
}

122
servlet/src/main/java/com/twelvemonkeys/servlet/DebugServlet.java
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@@ -1,122 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* DebugServlet class description.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: DebugServlet.java#1 $
*/
@Deprecated
public class DebugServlet extends GenericServlet {
private long dateModified;
public final void service(ServletRequest pRequest, ServletResponse pResponse) throws ServletException, IOException {
service((HttpServletRequest) pRequest, (HttpServletResponse) pResponse);
}
public void init() throws ServletException {
super.init();
dateModified = System.currentTimeMillis();
}
public void service(HttpServletRequest pRequest, HttpServletResponse pResponse) throws ServletException, IOException {
pResponse.setContentType("text/plain");
// Include these to allow browser caching
pResponse.setDateHeader("Last-Modified", dateModified);
pResponse.setHeader("ETag", getServletName());
ServletOutputStream out = pResponse.getOutputStream();
out.println("Remote address: " + pRequest.getRemoteAddr());
out.println("Remote host name: " + pRequest.getRemoteHost());
out.println("Remote user: " + pRequest.getRemoteUser());
out.println();
out.println("Request Method: " + pRequest.getMethod());
out.println("Request Scheme: " + pRequest.getScheme());
out.println("Request URI: " + pRequest.getRequestURI());
out.println("Request URL: " + pRequest.getRequestURL().toString());
out.println("Request PathInfo: " + pRequest.getPathInfo());
out.println("Request ContentLength: " + pRequest.getContentLength());
out.println();
out.println("Request Headers:");
Enumeration headerNames = pRequest.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = (String) headerNames.nextElement();
Enumeration headerValues = pRequest.getHeaders(headerName);
if (headerName != null) {
while (headerValues.hasMoreElements()) {
String value = (String) headerValues.nextElement();
out.println(" " + headerName + ": " + value);
}
}
}
out.println();
out.println("Request parameters:");
Enumeration paramNames = pRequest.getParameterNames();
while (paramNames.hasMoreElements()) {
String name = (String) paramNames.nextElement();
String[] values = pRequest.getParameterValues(name);
for (String value : values) {
out.println(" " + name + ": " + value);
}
}
out.println();
out.println("Request attributes:");
Enumeration attribNames = pRequest.getAttributeNames();
while (attribNames.hasMoreElements()) {
String name = (String) attribNames.nextElement();
Object value = pRequest.getAttribute(name);
out.println(" " + name + ": " + value);
}
out.flush();
}
}

403
servlet/src/main/java/com/twelvemonkeys/servlet/GenericFilter.java
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@@ -1,403 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import java.io.Serializable;
import java.lang.reflect.InvocationTargetException;
import java.util.Enumeration;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import com.twelvemonkeys.lang.BeanUtil;
/**
* Defines a generic, protocol-independent filter.
* <p>
* {@code GenericFilter} is inspired by {@link GenericServlet}, and
* implements the {@code Filter} and {@code FilterConfig} interfaces.
* </p>
* <p>
* {@code GenericFilter} makes writing filters easier. It provides simple
* versions of the lifecycle methods {@code init} and {@code destroy}
* and of the methods in the {@code FilterConfig} interface.
* {@code GenericFilter} also implements the {@code log} methods,
* declared in the {@code ServletContext} interface.
* </p>
* <p>
* {@code GenericFilter} has an auto-init system, that automatically invokes
* the method matching the signature {@code void setX(&lt;Type&gt;)},
* for every init-parameter {@code x}. Both camelCase and lisp-style parameter
* naming is supported, lisp-style names will be converted to camelCase.
* Parameter values are automatically converted from string representation to
* most basic types, if necessary.
* </p>
* <p>
* To write a generic filter, you need only override the abstract
* {@link #doFilterImpl(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)} doFilterImpl} method.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
*
* @version $Id: GenericFilter.java#1 $
*
* @see Filter
* @see FilterConfig
*/
@Deprecated
public abstract class GenericFilter implements Filter, FilterConfig, Serializable {
// TODO: Rewrite to use ServletConfigurator instead of BeanUtil
/**
* The filter config.
*/
private transient FilterConfig filterConfig = null;
/**
* Makes sure the filter runs once per request
*
* @see #isRunOnce
* @see #ATTRIB_RUN_ONCE_VALUE
* @see #oncePerRequest
*/
private final static String ATTRIB_RUN_ONCE_EXT = ".REQUEST_HANDLED";
/**
* Makes sure the filter runs once per request.
* Must be configured through init method, as the filter name is not
* available before we have a {@code FilterConfig} object.
*
* @see #isRunOnce
* @see #ATTRIB_RUN_ONCE_VALUE
* @see #oncePerRequest
*/
private String attribRunOnce = null;
/**
* Makes sure the filter runs once per request
*
* @see #isRunOnce
* @see #ATTRIB_RUN_ONCE_EXT
* @see #oncePerRequest
*/
private static final Object ATTRIB_RUN_ONCE_VALUE = new Object();
/**
* Indicates if this filter should run once per request ({@code true}),
* or for each forward/include resource ({@code false}).
* <p>
* Set this variable to true, to make sure the filter runs once per request.
* </p>
* <p>
* <em>NOTE: As of Servlet 2.4, this field
* should always be left to it's default value ({@code false}).
* <br>
* To run the filter once per request, the {@code filter-mapping} element
* of the web-descriptor should include a {@code dispatcher} element:
* </em>
* </p>
* <pre>&lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;</pre>
*/
protected boolean oncePerRequest = false;
/**
* Does nothing.
*/
public GenericFilter() {}
/**
* Called by the web container to indicate to a filter that it is being
* placed into service.
* <p>
* This implementation stores the {@code FilterConfig} object it
* receives from the servlet container for later use.
* Generally, there's no reason to override this method, override the
* no-argument {@code init} instead. However, <em>if</em> you are
* overriding this form of the method,
* always call {@code super.init(config)}.
* </p>
* <p>
* This implementation will also set all configured key/value pairs, that
* have a matching setter method annotated with {@link InitParam}.
* </p>
*
* @param pConfig the filter config
* @throws ServletException if an error occurs during init
*
* @see Filter#init(javax.servlet.FilterConfig)
* @see #init() init
* @see BeanUtil#configure(Object, java.util.Map, boolean)
*/
public void init(final FilterConfig pConfig) throws ServletException {
if (pConfig == null) {
throw new ServletConfigException("filter config == null");
}
// Store filter config
filterConfig = pConfig;
// Configure this
try {
BeanUtil.configure(this, ServletUtil.asMap(pConfig), true);
}
catch (InvocationTargetException e) {
throw new ServletConfigException("Could not configure " + getFilterName(), e.getCause());
}
// Create run-once attribute name
attribRunOnce = pConfig.getFilterName() + ATTRIB_RUN_ONCE_EXT;
log("init (oncePerRequest=" + oncePerRequest + ", attribRunOnce=" + attribRunOnce + ")");
init();
}
/**
* A convenience method which can be overridden so that there's no need to
* call {@code super.init(config)}.
*
* @see #init(FilterConfig)
*
* @throws ServletException if an error occurs during init
*/
public void init() throws ServletException {}
/**
* The {@code doFilter} method of the Filter is called by the container
* each time a request/response pair is passed through the chain due to a
* client request for a resource at the end of the chain.
* <p>
* Subclasses <em>should not override this method</em>, but rather the
* abstract {@link #doFilterImpl(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain)} doFilterImpl} method.
* </p>
*
* @param pRequest the servlet request
* @param pResponse the servlet response
* @param pFilterChain the filter chain
*
* @throws IOException
* @throws ServletException
*
* @see Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) Filter.doFilter
* @see #doFilterImpl(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) doFilterImpl
*/
public final void doFilter(final ServletRequest pRequest, final ServletResponse pResponse, final FilterChain pFilterChain) throws IOException, ServletException {
// If request filter and already run, continue chain and return fast
if (oncePerRequest && isRunOnce(pRequest)) {
pFilterChain.doFilter(pRequest, pResponse);
return;
}
// Do real filter
doFilterImpl(pRequest, pResponse, pFilterChain);
}
/**
* If request is filtered, returns true, otherwise marks request as filtered
* and returns false.
* A return value of false, indicates that the filter has not yet run.
* A return value of true, indicates that the filter has run for this
* request, and processing should not continue.
* <p>
* Note that the method will mark the request as filtered on first
* invocation.
* </p>
*
* @see #ATTRIB_RUN_ONCE_EXT
* @see #ATTRIB_RUN_ONCE_VALUE
*
* @param pRequest the servlet request
* @return {@code true} if the request is already filtered, otherwise
* {@code false}.
*/
private boolean isRunOnce(final ServletRequest pRequest) {
// If request already filtered, return true (skip)
if (pRequest.getAttribute(attribRunOnce) == ATTRIB_RUN_ONCE_VALUE) {
return true;
}
// Set attribute and return false (continue)
pRequest.setAttribute(attribRunOnce, ATTRIB_RUN_ONCE_VALUE);
return false;
}
/**
* Invoked once, or each time a request/response pair is passed through the
* chain, depending on the {@link #oncePerRequest} member variable.
*
* @param pRequest the servlet request
* @param pResponse the servlet response
* @param pChain the filter chain
*
* @throws IOException if an I/O error occurs
* @throws ServletException if an exception occurs during the filter process
*
* @see #oncePerRequest
* @see #doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) doFilter
* @see Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) Filter.doFilter
*/
protected abstract void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain)
throws IOException, ServletException;
/**
* Called by the web container to indicate to a filter that it is being
* taken out of service.
*
* @see Filter#destroy
*/
public void destroy() {
log("destroy");
filterConfig = null;
}
/**
* Returns the filter-name of this filter as defined in the deployment
* descriptor.
*
* @return the filter-name
* @see FilterConfig#getFilterName
*/
public String getFilterName() {
return filterConfig.getFilterName();
}
/**
* Returns a reference to the {@link ServletContext} in which the caller is
* executing.
*
* @return the {@code ServletContext} object, used by the caller to
* interact with its servlet container
* @see FilterConfig#getServletContext
* @see ServletContext
*/
public ServletContext getServletContext() {
return filterConfig.getServletContext();
}
/**
* Returns a {@code String} containing the value of the named
* initialization parameter, or null if the parameter does not exist.
*
* @param pKey a {@code String} specifying the name of the
* initialization parameter
* @return a {@code String} containing the value of the initialization
* parameter
*/
public String getInitParameter(final String pKey) {
return filterConfig.getInitParameter(pKey);
}
/**
* Returns the names of the servlet's initialization parameters as an
* {@code Enumeration} of {@code String} objects, or an empty
* {@code Enumeration} if the servlet has no initialization parameters.
*
* @return an {@code Enumeration} of {@code String} objects
* containing the mNames of the servlet's initialization parameters
*/
public Enumeration getInitParameterNames() {
return filterConfig.getInitParameterNames();
}
/**
* Writes the specified message to a servlet log file, prepended by the
* filter's name.
*
* @param pMessage the log message
* @see ServletContext#log(String)
*/
protected void log(final String pMessage) {
getServletContext().log(getFilterName() + ": " + pMessage);
}
/**
* Writes an explanatory message and a stack trace for a given
* {@code Throwable} to the servlet log file, prepended by the
* filter's name.
*
* @param pMessage the log message
* @param pThrowable the exception
* @see ServletContext#log(String,Throwable)
*/
protected void log(final String pMessage, final Throwable pThrowable) {
getServletContext().log(getFilterName() + ": " + pMessage, pThrowable);
}
/**
* Initializes the filter.
*
* @param pFilterConfig the filter config
* @see #init init
*
* @deprecated For compatibility only, use {@link #init init} instead.
*/
@Deprecated
@SuppressWarnings("UnusedDeclaration")
public void setFilterConfig(final FilterConfig pFilterConfig) {
try {
init(pFilterConfig);
}
catch (ServletException e) {
log("Error in init(), see stack trace for details.", e);
}
}
/**
* Gets the {@code FilterConfig} for this filter.
*
* @return the {@code FilterConfig} for this filter
* @see FilterConfig
*/
public FilterConfig getFilterConfig() {
return filterConfig;
}
/**
* Specifies if this filter should run once per request ({@code true}),
* or for each forward/include resource ({@code false}).
* Called automatically from the {@code init}-method, with settings
* from web.xml.
*
* @param pOncePerRequest {@code true} if the filter should run only
* once per request
* @see #oncePerRequest
*/
@InitParam(name = "once-per-request")
public void setOncePerRequest(final boolean pOncePerRequest) {
oncePerRequest = pOncePerRequest;
}
}

95
servlet/src/main/java/com/twelvemonkeys/servlet/GenericServlet.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.lang.reflect.InvocationTargetException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import com.twelvemonkeys.lang.BeanUtil;
/**
* Defines a generic, protocol-independent servlet.
* <p>
* {@code GenericServlet} has an auto-init system, that automatically invokes
* the method matching the signature {@code void setX(&lt;Type&gt;)},
* for every init-parameter {@code x}. Both camelCase and lisp-style parameter
* naming is supported, lisp-style names will be converted to camelCase.
* Parameter values are automatically converted from string representation to
* most basic types, if necessary.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
*
* @version $Id: GenericServlet.java#1 $
*/
@Deprecated
public abstract class GenericServlet extends javax.servlet.GenericServlet {
// TODO: Rewrite to use ServletConfigurator instead of BeanUtil
/**
* Called by the web container to indicate to a servlet that it is being
* placed into service.
* <p>
* This implementation stores the {@code ServletConfig} object it
* receives from the servlet container for later use. When overriding this
* form of the method, call {@code super.init(config)}.
* </p>
* <p>
* This implementation will also set all configured key/value pairs, that
* have a matching setter method annotated with {@link InitParam}.
* </p>
*
* @param pConfig the servlet config
* @throws ServletException if the servlet could not be initialized.
*
* @see javax.servlet.GenericServlet#init
* @see #init() init
* @see BeanUtil#configure(Object, java.util.Map, boolean)
*/
@Override
public void init(final ServletConfig pConfig) throws ServletException {
if (pConfig == null) {
throw new ServletConfigException("servlet config == null");
}
try {
BeanUtil.configure(this, ServletUtil.asMap(pConfig), true);
}
catch (InvocationTargetException e) {
throw new ServletConfigException("Could not configure " + getServletName(), e.getCause());
}
super.init(pConfig);
}
}

95
servlet/src/main/java/com/twelvemonkeys/servlet/HttpServlet.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.lang.reflect.InvocationTargetException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import com.twelvemonkeys.lang.BeanUtil;
/**
* Defines a generic, HTTP specific servlet.
* <p>
* {@code HttpServlet} has an auto-init system, that automatically invokes
* the method matching the signature {@code void setX(&lt;Type&gt;)},
* for every init-parameter {@code x}. Both camelCase and lisp-style parameter
* naming is supported, lisp-style names will be converted to camelCase.
* Parameter values are automatically converted from string representation to
* most basic types, if necessary.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
*
* @version $Id: HttpServlet.java#1 $
*/
@Deprecated
public abstract class HttpServlet extends javax.servlet.http.HttpServlet {
// TODO: Rewrite to use ServletConfigurator instead of BeanUtil
/**
* Called by the web container to indicate to a servlet that it is being
* placed into service.
* <p>
* This implementation stores the {@code ServletConfig} object it
* receives from the servlet container for later use. When overriding this
* form of the method, call {@code super.init(config)}.
* </p>
* <p>
* This implementation will also set all configured key/value pairs, that
* have a matching setter method annotated with {@link InitParam}.
* </p>
*
* @param pConfig the servlet config
* @throws ServletException if an error occurred during init
*
* @see javax.servlet.GenericServlet#init
* @see #init() init
* @see BeanUtil#configure(Object, java.util.Map, boolean)
*/
@Override
public void init(ServletConfig pConfig) throws ServletException {
if (pConfig == null) {
throw new ServletConfigException("servlet config == null");
}
try {
BeanUtil.configure(this, ServletUtil.asMap(pConfig), true);
}
catch (InvocationTargetException e) {
throw new ServletConfigException("Could not configure " + getServletName(), e.getCause());
}
super.init(pConfig);
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/InitParam.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation to be used by servlets/filters, to have their {@code init}-method
* automatically convert and set values from their respective configuration.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: InitParam.java#1 $
* @see com.twelvemonkeys.servlet.ServletConfigurator
* @see com.twelvemonkeys.servlet.GenericFilter#init(javax.servlet.FilterConfig)
* @see com.twelvemonkeys.servlet.GenericServlet#init(javax.servlet.ServletConfig)
* @see com.twelvemonkeys.servlet.HttpServlet#init(javax.servlet.ServletConfig)
*/
// TODO: Actually implement for version 3.0!
@Documented
@Inherited
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD/*, TODO: ElementType.FIELD*/})
@Deprecated
public @interface InitParam {
static final String UNDEFINED = "";
String name() default UNDEFINED;
String defaultValue() default UNDEFINED; // TODO: Consider separate annotation?
boolean required() default false; // TODO: Consider separate annotation?
}

127
servlet/src/main/java/com/twelvemonkeys/servlet/OutputStreamAdapter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.ServletOutputStream;
import com.twelvemonkeys.lang.Validate;
/**
* A {@code ServletOutputStream} implementation backed by a
* {@link java.io.OutputStream}. For filters that need to buffer the
* response and do post filtering, it may be used like this:<pre>
* ByteArrayOutputStream buffer = new ByteArraOutputStream();
* ServletOutputStream adapter = new OutputStreamAdapter(buffer);
* </pre>
* <p>
* As a {@code ServletOutputStream} is itself an {@code OutputStream}, this
* class may also be used as a superclass for wrappers of other
* {@code ServletOutputStream}s, like this:
* </p>
* <pre>
* class FilterServletOutputStream extends OutputStreamAdapter {
* public FilterServletOutputStream(ServletOutputStream out) {
* super(out);
* }
*
* public void write(int abyte) {
* // do filtering...
* super.write(...);
* }
* }
*
* ...
*
* ServletOutputStream original = response.getOutputStream();
* ServletOutputStream wrapper = new FilterServletOutputStream(original);
* </pre>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author $Author: haku $
* @version $Id: OutputStreamAdapter.java#1 $
*
*/
@Deprecated
public class OutputStreamAdapter extends ServletOutputStream {
/** The wrapped {@code OutputStream}. */
protected final OutputStream out;
/**
* Creates an {@code OutputStreamAdapter}.
*
* @param pOut the wrapped {@code OutputStream}
*
* @throws IllegalArgumentException if {@code pOut} is {@code null}.
*/
public OutputStreamAdapter(final OutputStream pOut) {
Validate.notNull(pOut, "out");
out = pOut;
}
/**
* Returns the wrapped {@code OutputStream}.
*
* @return the wrapped {@code OutputStream}.
*/
public OutputStream getOutputStream() {
return out;
}
@Override
public String toString() {
return "ServletOutputStream adapted from " + out.toString();
}
/**
* Writes a byte to the underlying stream.
*
* @param pByte the byte to write.
*
* @throws IOException if an error occurs during writing
*/
public void write(final int pByte) throws IOException {
out.write(pByte);
}
// Overide for efficiency
public void write(final byte pBytes[]) throws IOException {
out.write(pBytes);
}
// Overide for efficiency
public void write(final byte pBytes[], final int pOff, final int pLen) throws IOException {
out.write(pBytes, pOff, pLen);
}
}

136
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/*
* Copyright (c) 2013, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletRequest;
import java.util.Enumeration;
import java.util.Iterator;
import static com.twelvemonkeys.lang.Validate.notNull;
/**
* ServletAttributesMap
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haraldk$
* @version $Id: ServletAttributesMap.java,v 1.0 01.03.13 10:34 haraldk Exp$
*/
class ServletAttributesMapAdapter extends AbstractServletMapAdapter<Object> {
private final ServletContext context;
private final ServletRequest request;
ServletAttributesMapAdapter(final ServletContext context) {
this(notNull(context), null);
}
ServletAttributesMapAdapter(final ServletRequest request) {
this(null, notNull(request));
}
private ServletAttributesMapAdapter(final ServletContext context, final ServletRequest request) {
this.context = context;
this.request = request;
}
@SuppressWarnings("unchecked")
private Enumeration<String> getAttributeNames() {
return context != null ? context.getAttributeNames() : request.getAttributeNames();
}
private Object getAttribute(final String name) {
return context != null ? context.getAttribute(name) : request.getAttribute(name);
}
private Object setAttribute(String name, Object value) {
Object oldValue = getAttribute(name);
if (context != null) {
context.setAttribute(name, value);
}
else {
request.setAttribute(name, value);
}
return oldValue;
}
private Object removeAttribute(String name) {
Object oldValue = getAttribute(name);
if (context != null) {
context.removeAttribute(name);
}
else {
request.removeAttribute(name);
}
return oldValue;
}
@Override
protected Iterator<String> keysImpl() {
final Enumeration<String> keys = getAttributeNames();
return new Iterator<String>() {
private String key;
public boolean hasNext() {
return keys.hasMoreElements();
}
public String next() {
key = keys.nextElement();
return key;
}
public void remove() {
// Support removal of attribute through key iterator
removeAttribute(key);
}
};
}
@Override
protected Object valueImpl(String pName) {
return getAttribute(pName);
}
@Override
public Object put(String key, Object value) {
return setAttribute(key, value);
}
@Override
public Object remove(Object key) {
return key instanceof String ? removeAttribute((String) key) : null;
}
}

84
servlet/src/main/java/com/twelvemonkeys/servlet/ServletConfigException.java
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@@ -1,84 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import javax.servlet.ServletException;
/**
* ServletConfigException.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ServletConfigException.java#2 $
*/
@Deprecated
public class ServletConfigException extends ServletException {
// TODO: Parameters for init-param at fault, and possibly servlet name?
/**
* Creates a {@code ServletConfigException} with the given message.
*
* @param pMessage the exception message
*/
public ServletConfigException(String pMessage) {
super(pMessage);
}
/**
* Creates a {@code ServletConfigException} with the given message and cause.
*
* @param pMessage the exception message
* @param pCause the exception cause
*/
public ServletConfigException(final String pMessage, final Throwable pCause) {
super(pMessage, pCause);
maybeInitCause(pCause);
}
/**
* Creates a {@code ServletConfigException} with the cause.
*
* @param pCause the exception cause
*/
public ServletConfigException(final Throwable pCause) {
super(String.format("Error in Servlet configuration: %s", pCause.getMessage()), pCause);
maybeInitCause(pCause);
}
private void maybeInitCause(Throwable pCause) {
// Workaround for ServletExceptions that does not do proper exception chaining
if (getCause() == null) {
initCause(pCause);
}
}
}

284
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.lang.Validate;
import javax.servlet.FilterConfig;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import java.io.Serializable;
import java.util.*;
/**
* {@code ServletConfig} or {@code FilterConfig} adapter, that implements
* the {@code Map} interface for interoperability with collection-based API's.
* <p>
* This {@code Map} is not synchronized.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ServletConfigMapAdapter.java#2 $
*/
class ServletConfigMapAdapter extends AbstractMap<String, String> implements Map<String, String>, Serializable, Cloneable {
enum ConfigType {
ServletConfig, FilterConfig, ServletContext
}
private final ConfigType type;
private final ServletConfig servletConfig;
private final FilterConfig filterConfig;
private final ServletContext servletContext;
// Cache the entry set
private transient Set<Entry<String, String>> entrySet;
public ServletConfigMapAdapter(final ServletConfig pConfig) {
this(pConfig, ConfigType.ServletConfig);
}
public ServletConfigMapAdapter(final FilterConfig pConfig) {
this(pConfig, ConfigType.FilterConfig);
}
public ServletConfigMapAdapter(final ServletContext pContext) {
this(pContext, ConfigType.ServletContext);
}
private ServletConfigMapAdapter(final Object pConfig, final ConfigType pType) {
// Could happen if client code invokes with null reference
Validate.notNull(pConfig, "config");
type = pType;
switch (type) {
case ServletConfig:
servletConfig = (ServletConfig) pConfig;
filterConfig = null;
servletContext = null;
break;
case FilterConfig:
servletConfig = null;
filterConfig = (FilterConfig) pConfig;
servletContext = null;
break;
case ServletContext:
servletConfig = null;
filterConfig = null;
servletContext = (ServletContext) pConfig;
break;
default:
throw new IllegalArgumentException("Wrong type: " + pType);
}
}
/**
* Gets the servlet or filter name from the config.
*
* @return the servlet or filter name
*/
public final String getName() {
switch (type) {
case ServletConfig:
return servletConfig.getServletName();
case FilterConfig:
return filterConfig.getFilterName();
case ServletContext:
return servletContext.getServletContextName();
default:
throw new IllegalStateException();
}
}
/**
* Gets the servlet context from the config.
*
* @return the servlet context
*/
public final ServletContext getServletContext() {
switch (type) {
case ServletConfig:
return servletConfig.getServletContext();
case FilterConfig:
return filterConfig.getServletContext();
case ServletContext:
return servletContext;
default:
throw new IllegalStateException();
}
}
public final Enumeration getInitParameterNames() {
switch (type) {
case ServletConfig:
return servletConfig.getInitParameterNames();
case FilterConfig:
return filterConfig.getInitParameterNames();
case ServletContext:
return servletContext.getInitParameterNames();
default:
throw new IllegalStateException();
}
}
public final String getInitParameter(final String pName) {
switch (type) {
case ServletConfig:
return servletConfig.getInitParameter(pName);
case FilterConfig:
return filterConfig.getInitParameter(pName);
case ServletContext:
return servletContext.getInitParameter(pName);
default:
throw new IllegalStateException();
}
}
public Set<Entry<String, String>> entrySet() {
if (entrySet == null) {
entrySet = createEntrySet();
}
return entrySet;
}
private Set<Entry<String, String>> createEntrySet() {
return new AbstractSet<Entry<String, String>>() {
// Cache size, if requested, -1 means not calculated
private int size = -1;
public Iterator<Entry<String, String>> iterator() {
return new Iterator<Entry<String, String>>() {
// Iterator is backed by initParameterNames enumeration
final Enumeration names = getInitParameterNames();
public boolean hasNext() {
return names.hasMoreElements();
}
public Entry<String, String> next() {
final String key = (String) names.nextElement();
return new Entry<String, String>() {
public String getKey() {
return key;
}
public String getValue() {
return get(key);
}
public String setValue(String pValue) {
throw new UnsupportedOperationException();
}
// NOTE: Override equals
public boolean equals(Object pOther) {
if (!(pOther instanceof Map.Entry)) {
return false;
}
Map.Entry e = (Map.Entry) pOther;
Object value = get(key);
Object rKey = e.getKey();
Object rValue = e.getValue();
return (key == null ? rKey == null : key.equals(rKey))
&& (value == null ? rValue == null : value.equals(rValue));
}
// NOTE: Override hashCode to keep the map's
// hashCode constant and compatible
public int hashCode() {
Object value = get(key);
return ((key == null) ? 0 : key.hashCode()) ^
((value == null) ? 0 : value.hashCode());
}
public String toString() {
return key + "=" + get(key);
}
};
}
public void remove() {
throw new UnsupportedOperationException();
}
};
}
public int size() {
if (size < 0) {
size = calculateSize();
}
return size;
}
private int calculateSize() {
final Enumeration names = getInitParameterNames();
int size = 0;
while (names.hasMoreElements()) {
size++;
names.nextElement();
}
return size;
}
};
}
public String get(Object pKey) {
return getInitParameter(StringUtil.valueOf(pKey));
}
/// Unsupported Map methods
@Override
public String put(String pKey, String pValue) {
throw new UnsupportedOperationException();
}
@Override
public String remove(Object pKey) {
throw new UnsupportedOperationException();
}
@Override
public void putAll(Map pMap) {
throw new UnsupportedOperationException();
}
@Override
public void clear() {
throw new UnsupportedOperationException();
}
}

271
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@@ -1,271 +0,0 @@
/*
* Copyright (c) 2011, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.util.FilterIterator;
import com.twelvemonkeys.util.convert.ConversionException;
import com.twelvemonkeys.util.convert.Converter;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.*;
/**
* ServletConfigurator
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haraldk$
* @version $Id: ServletConfigurator.java,v 1.0 Apr 30, 2010 2:51:38 PM haraldk Exp$
* @see com.twelvemonkeys.servlet.InitParam
*/
final class ServletConfigurator {
// TODO: Rethink @InitParam? Allow annotation of method parameters instead? Allows setLocation(@InitParam int x, @InitParam int y)
// TODO: At least allow field injection
// TODO: defaultValue, required
private ServletConfigurator() {
}
public static void configure(final Servlet pServlet, final ServletConfig pConfig) throws ServletConfigException {
new Configurator(pServlet, pConfig.getServletName()).configure(ServletUtil.asMap(pConfig));
}
public static void configure(final Filter pFilter, final FilterConfig pConfig) throws ServletConfigException {
new Configurator(pFilter, pConfig.getFilterName()).configure(ServletUtil.asMap(pConfig));
}
private static class Configurator {
private final Object servletOrFilter;
private final String name;
private Configurator(final Object servletOrFilter, final String name) {
this.servletOrFilter = servletOrFilter;
this.name = name;
}
private void configure(final Map<String, String> pMapping) throws ServletConfigException {
// Loop over methods with InitParam annotations
for (Method method : annotatedMethods(servletOrFilter.getClass(), InitParam.class)) {
assertAcceptableMethod(method);
// Get value or default, throw exception if missing required value
Object value = getConfiguredValue(method, pMapping);
if (value != null) {
// Inject value to this method
try {
method.invoke(servletOrFilter, value);
}
catch (IllegalAccessException e) {
// We know the method is accessible, so this should never happen
throw new Error(e);
}
catch (InvocationTargetException e) {
throw new ServletConfigException(String.format("Could not configure %s: %s", name, e.getCause().getMessage()), e.getCause());
}
}
}
// TODO: Loop over fields with InitParam annotations
// TODO: Log warning for mappings not present among InitParam annotated methods?
}
private Object getConfiguredValue(final Method method, final Map<String, String> mapping) throws ServletConfigException {
InitParam initParam = method.getAnnotation(InitParam.class);
String paramName = getParameterName(method, initParam);
// Get parameter value
String stringValue = mapping.get(paramName);
if (stringValue == null && initParam.name().equals(InitParam.UNDEFINED)) {
stringValue = mapping.get(StringUtil.camelToLisp(paramName));
}
if (stringValue == null) {
// InitParam support required = true and throw exception if not present in map
if (initParam.required()) {
throw new ServletConfigException(
String.format(
"Could not configure %s: Required init-parameter \"%s\" of type %s is missing",
name, paramName, method.getParameterTypes()[0]
)
);
}
else if (!initParam.defaultValue().equals(InitParam.UNDEFINED)) {
// Support default values
stringValue = initParam.defaultValue();
}
}
// Convert value based on method arguments...
return stringValue == null ? null : convertValue(method, stringValue);
}
private Object convertValue(final Method method, final String stringValue) throws ServletConfigException {
// We know it's a single parameter method
Class<?> type = method.getParameterTypes()[0];
try {
return String.class.equals(type) ? stringValue : Converter.getInstance().toObject(stringValue, type);
}
catch (ConversionException e) {
throw new ServletConfigException(e);
}
}
private String getParameterName(final Method method, final InitParam initParam) throws ServletConfigException {
String paramName = initParam.name();
if (paramName.equals(InitParam.UNDEFINED)) {
String methodName = method.getName();
if (methodName.startsWith("set") && methodName.length() > 3) {
paramName = Character.toLowerCase(methodName.charAt(3)) + methodName.substring(4);
}
else {
throw new ServletConfigException(
String.format(
"Could not configure %s: InitParam annotated method must either specify name or follow Bean standard for properties (ie. setFoo => 'foo'): %s",
name, method
)
);
}
}
return paramName;
}
private void assertAcceptableMethod(final Method method) throws ServletConfigException {
// Try to use setAccessible, if not public
boolean isAccessible = Modifier.isPublic(method.getModifiers());
if (!isAccessible) {
try {
method.setAccessible(true);
isAccessible = true;
}
catch (SecurityException ignore) {
// Won't be accessible, we'll fail below
}
}
if (!isAccessible || method.getReturnType() != Void.TYPE || method.getParameterTypes().length != 1) {
throw new ServletConfigException(
String.format(
"Could not configure %s: InitParam annotated method must be public void and have a single parameter argument list: %s",
name, method
)
);
}
}
/**
* Gets all methods annotated with the given annotations.
*
* @param pClass the class to get annotated methods from
* @param pAnnotations the annotations to test for
* @return an iterable that allows iterating over all methods with the given annotations.
*/
private Iterable<Method> annotatedMethods(final Class<?> pClass, final Class<? extends Annotation>... pAnnotations) {
return new Iterable<Method>() {
public Iterator<Method> iterator() {
Set<Method> methods = new LinkedHashSet<Method>();
Class<?> cl = pClass;
while (cl.getSuperclass() != null) { // There's no annotations of interest on java.lang.Object
methods.addAll(Arrays.asList(cl.getDeclaredMethods()));
// TODO: What about interface methods? Do we really want them?
Class<?>[] interfaces = cl.getInterfaces();
for (Class<?> i : interfaces) {
methods.addAll(Arrays.asList(i.getDeclaredMethods()));
}
cl = cl.getSuperclass();
}
return new FilterIterator<Method>(methods.iterator(), new FilterIterator.Filter<Method>() {
public boolean accept(final Method pMethod) {
for (Class<? extends Annotation> annotation : pAnnotations) {
if (!pMethod.isAnnotationPresent(annotation) || isOverriddenWithAnnotation(pMethod, annotation)) {
return false;
}
}
return true;
}
/**
* @param pMethod the method to test for override
* @param pAnnotation the annotation that must be present
* @return {@code true} iff the method is overridden in a subclass, and has annotation
* @see <a href="http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.4.8">The Java Language Specification: Classes: Inheritance, Overriding, and Hiding</a>
*/
private boolean isOverriddenWithAnnotation(final Method pMethod, final Class<? extends Annotation> pAnnotation) {
if (Modifier.isPrivate(pMethod.getModifiers())) {
return false;
}
Class cl = pClass;
// Loop down up from subclass to superclass declaring the method
while (cl != null && !pMethod.getDeclaringClass().equals(cl)) {
try {
Method override = cl.getDeclaredMethod(pMethod.getName(), pMethod.getParameterTypes());
// Overridden, test if it has the annotation present
if (override.isAnnotationPresent(pAnnotation)) {
return true;
}
}
catch (NoSuchMethodException ignore) {
}
cl = cl.getSuperclass();
}
return false;
}
});
}
};
}
}
}

72
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/*
* Copyright (c) 2009, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.CollectionUtil;
import javax.servlet.http.HttpServletRequest;
import java.util.*;
import static com.twelvemonkeys.lang.Validate.notNull;
/**
* ServletHeadersMapAdapter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ServletHeadersMapAdapter.java#1 $
*/
class ServletHeadersMapAdapter extends AbstractServletMapAdapter<List<String>> {
protected final HttpServletRequest request;
public ServletHeadersMapAdapter(final HttpServletRequest pRequest) {
request = notNull(pRequest, "request");
}
protected List<String> valueImpl(final String pName) {
@SuppressWarnings("unchecked")
Enumeration<String> headers = request.getHeaders(pName);
return headers == null ? null : toList(CollectionUtil.iterator(headers));
}
private static List<String> toList(final Iterator<String> pValues) {
List<String> list = new ArrayList<String>();
CollectionUtil.addAll(list, pValues);
return Collections.unmodifiableList(list);
}
protected Iterator<String> keysImpl() {
@SuppressWarnings("unchecked")
Enumeration<String> headerNames = request.getHeaderNames();
return headerNames == null ? null : CollectionUtil.iterator(headerNames);
}
}

69
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/*
* Copyright (c) 2009, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.CollectionUtil;
import javax.servlet.ServletRequest;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import static com.twelvemonkeys.lang.Validate.notNull;
/**
* ServletParametersMapAdapter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ServletParametersMapAdapter.java#1 $
*/
class ServletParametersMapAdapter extends AbstractServletMapAdapter<List<String>> {
// TODO: Be able to piggyback on HttpServletRequest.getParameterMap when available?
protected final ServletRequest request;
public ServletParametersMapAdapter(final ServletRequest pRequest) {
request = notNull(pRequest, "request");
}
protected List<String> valueImpl(String pName) {
String[] values = request.getParameterValues(pName);
return values == null ? null : Arrays.asList(values);
}
protected Iterator<String> keysImpl() {
@SuppressWarnings("unchecked")
Enumeration<String> names = request.getParameterNames();
return names == null ? null : CollectionUtil.iterator(names);
}
}

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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import static com.twelvemonkeys.lang.Validate.notNull;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletResponse;
/**
* A delegate for handling stream support in wrapped servlet responses.
* <p>
* Client code should delegate {@code getOutputStream}, {@code getWriter},
* {@code flushBuffer} and {@code resetBuffer} methods from the servlet response.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ServletResponseStreamDelegate.java#2 $
*/
@Deprecated
public class ServletResponseStreamDelegate {
private Object out = null;
protected final ServletResponse response;
public ServletResponseStreamDelegate(final ServletResponse pResponse) {
response = notNull(pResponse, "response");
}
// NOTE: Intentionally NOT thread safe, as one request/response should be handled by one thread ONLY.
public final ServletOutputStream getOutputStream() throws IOException {
if (out == null) {
OutputStream out = createOutputStream();
this.out = out instanceof ServletOutputStream ? out : new OutputStreamAdapter(out);
}
else if (out instanceof PrintWriter) {
throw new IllegalStateException("getWriter() already called.");
}
return (ServletOutputStream) out;
}
// NOTE: Intentionally NOT thread safe, as one request/response should be handled by one thread ONLY.
public final PrintWriter getWriter() throws IOException {
if (out == null) {
// NOTE: getCharacterEncoding may/should not return null
OutputStream out = createOutputStream();
String charEncoding = response.getCharacterEncoding();
this.out = new PrintWriter(charEncoding != null ? new OutputStreamWriter(out, charEncoding) : new OutputStreamWriter(out));
}
else if (out instanceof ServletOutputStream) {
throw new IllegalStateException("getOutputStream() already called.");
}
return (PrintWriter) out;
}
/**
* Returns the {@code OutputStream}.
* Subclasses should override this method to provide a decorated output stream.
* This method is guaranteed to be invoked only once for a request/response
* (unless {@code resetBuffer} is invoked).
* <p>
* This implementation simply returns the output stream from the wrapped
* response.
* </p>
*
* @return the {@code OutputStream} to use for the response
* @throws IOException if an I/O exception occurs
*/
protected OutputStream createOutputStream() throws IOException {
return response.getOutputStream();
}
public void flushBuffer() throws IOException {
if (out instanceof ServletOutputStream) {
((ServletOutputStream) out).flush();
}
else if (out != null) {
((PrintWriter) out).flush();
}
}
public void resetBuffer() {
out = null;
}
}

785
servlet/src/main/java/com/twelvemonkeys/servlet/ServletUtil.java
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@@ -1,785 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.File;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.Map;
import javax.servlet.FilterConfig;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletRequest;
import javax.servlet.ServletRequestWrapper;
import javax.servlet.ServletResponse;
import javax.servlet.ServletResponseWrapper;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.util.convert.ConversionException;
import com.twelvemonkeys.util.convert.Converter;
/**
* Various servlet related helper methods.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author Eirik Torske
* @author last modified by $Author: haku $
* @version $Id: ServletUtil.java#3 $
*/
@Deprecated
public final class ServletUtil {
/**
* {@code "javax.servlet.include.request_uri"}
*/
private final static String ATTRIB_INC_REQUEST_URI = "javax.servlet.include.request_uri";
/**
* {@code "javax.servlet.include.context_path"}
*/
private final static String ATTRIB_INC_CONTEXT_PATH = "javax.servlet.include.context_path";
/**
* {@code "javax.servlet.include.servlet_path"}
*/
private final static String ATTRIB_INC_SERVLET_PATH = "javax.servlet.include.servlet_path";
/**
* {@code "javax.servlet.include.path_info"}
*/
private final static String ATTRIB_INC_PATH_INFO = "javax.servlet.include.path_info";
/**
* {@code "javax.servlet.include.query_string"}
*/
private final static String ATTRIB_INC_QUERY_STRING = "javax.servlet.include.query_string";
/**
* {@code "javax.servlet.forward.request_uri"}
*/
private final static String ATTRIB_FWD_REQUEST_URI = "javax.servlet.forward.request_uri";
/**
* {@code "javax.servlet.forward.context_path"}
*/
private final static String ATTRIB_FWD_CONTEXT_PATH = "javax.servlet.forward.context_path";
/**
* {@code "javax.servlet.forward.servlet_path"}
*/
private final static String ATTRIB_FWD_SERVLET_PATH = "javax.servlet.forward.servlet_path";
/**
* {@code "javax.servlet.forward.path_info"}
*/
private final static String ATTRIB_FWD_PATH_INFO = "javax.servlet.forward.path_info";
/**
* {@code "javax.servlet.forward.query_string"}
*/
private final static String ATTRIB_FWD_QUERY_STRING = "javax.servlet.forward.query_string";
/**
* Don't create, static methods only
*/
private ServletUtil() {
}
/**
* Gets the value of the given parameter from the request, or if the
* parameter is not set, the default value.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter, or the default value, if the
* parameter is not set.
*/
public static String getParameter(final ServletRequest pReq, final String pName, final String pDefault) {
String str = pReq.getParameter(pName);
return str != null ? str : pDefault;
}
/**
* Gets the value of the given parameter from the request converted to
* an Object. If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pType the type of object (class) to return
* @param pFormat the format to use (might be {@code null} in many cases)
* @param pDefault the default value
* @return the value of the parameter converted to a boolean, or the
* default value, if the parameter is not set.
* @throws IllegalArgumentException if {@code pDefault} is
* non-{@code null} and not an instance of {@code pType}
* @throws NullPointerException if {@code pReq}, {@code pName} or
* {@code pType} is {@code null}.
* @see Converter#toObject
*/
// TODO: Well, it's done. Need some thinking... We probably don't want default if conversion fails...
static <T> T getParameter(final ServletRequest pReq, final String pName, final Class<T> pType, final String pFormat, final T pDefault) {
// Test if pDefault is either null or instance of pType
if (pDefault != null && !pType.isInstance(pDefault)) {
throw new IllegalArgumentException("default value not instance of " + pType + ": " + pDefault.getClass());
}
String str = pReq.getParameter(pName);
if (str == null) {
return pDefault;
}
try {
return pType.cast(Converter.getInstance().toObject(str, pType, pFormat));
}
catch (ConversionException ce) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* a {@code boolean}.&nbsp;If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to a {@code boolean}, or the
* default value, if the parameter is not set.
*/
public static boolean getBooleanParameter(final ServletRequest pReq, final String pName, final boolean pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? Boolean.valueOf(str) : pDefault;
}
catch (NumberFormatException nfe) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* an {@code int}.&nbsp;If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to an {@code int}, or the default
* value, if the parameter is not set.
*/
public static int getIntParameter(final ServletRequest pReq, final String pName, final int pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? Integer.parseInt(str) : pDefault;
}
catch (NumberFormatException nfe) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* an {@code long}.&nbsp;If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to an {@code long}, or the default
* value, if the parameter is not set.
*/
public static long getLongParameter(final ServletRequest pReq, final String pName, final long pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? Long.parseLong(str) : pDefault;
}
catch (NumberFormatException nfe) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* a {@code float}.&nbsp;If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to a {@code float}, or the default
* value, if the parameter is not set.
*/
public static float getFloatParameter(final ServletRequest pReq, final String pName, final float pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? Float.parseFloat(str) : pDefault;
}
catch (NumberFormatException nfe) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* a {@code double}.&nbsp;If the parameter is not set or not parseable, the default
* value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to n {@code double}, or the default
* value, if the parameter is not set.
*/
public static double getDoubleParameter(final ServletRequest pReq, final String pName, final double pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? Double.parseDouble(str) : pDefault;
}
catch (NumberFormatException nfe) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* a {@code Date}.&nbsp;If the parameter is not set or not parseable, the
* default value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pDefault the default value
* @return the value of the parameter converted to a {@code Date}, or the
* default value, if the parameter is not set.
* @see com.twelvemonkeys.lang.StringUtil#toDate(String)
*/
public static long getDateParameter(final ServletRequest pReq, final String pName, final long pDefault) {
String str = pReq.getParameter(pName);
try {
return str != null ? StringUtil.toDate(str).getTime() : pDefault;
}
catch (IllegalArgumentException iae) {
return pDefault;
}
}
/**
* Gets the value of the given parameter from the request converted to
* a Date.&nbsp;If the parameter is not set or not parseable, the
* default value is returned.
*
* @param pReq the servlet request
* @param pName the parameter name
* @param pFormat the date format to use
* @param pDefault the default value
* @return the value of the parameter converted to a Date, or the
* default value, if the parameter is not set.
* @see com.twelvemonkeys.lang.StringUtil#toDate(String,String)
*/
/*
public static long getDateParameter(ServletRequest pReq, String pName, String pFormat, long pDefault) {
String str = pReq.getParameter(pName);
try {
return ((str != null) ? StringUtil.toDate(str, pFormat).getTime() : pDefault);
}
catch (IllegalArgumentException iae) {
return pDefault;
}
}
*/
/**
* Builds a full-blown HTTP/HTTPS URL from a
* {@code javax.servlet.http.HttpServletRequest} object.
*
* @param pRequest The HTTP servlet request object.
* @return the reproduced URL
* @deprecated Use {@link javax.servlet.http.HttpServletRequest#getRequestURL()}
* instead.
*/
@Deprecated
static StringBuffer buildHTTPURL(final HttpServletRequest pRequest) {
StringBuffer resultURL = new StringBuffer();
// Scheme, as in http, https, ftp etc
String scheme = pRequest.getScheme();
resultURL.append(scheme);
resultURL.append("://");
resultURL.append(pRequest.getServerName());
// Append port only if not default port
int port = pRequest.getServerPort();
if (port > 0 &&
!(("http".equals(scheme) && port == 80) ||
("https".equals(scheme) && port == 443))) {
resultURL.append(":");
resultURL.append(port);
}
// Append URI
resultURL.append(pRequest.getRequestURI());
// If present, append extra path info
String pathInfo = pRequest.getPathInfo();
if (pathInfo != null) {
resultURL.append(pathInfo);
}
return resultURL;
}
/**
* Gets the URI of the resource currently included.
* The value is read from the request attribute
* {@code "javax.servlet.include.request_uri"}
*
* @param pRequest the servlet request
* @return the URI of the included resource, or {@code null} if no include
* @see HttpServletRequest#getRequestURI
* @since Servlet 2.2
*/
public static String getIncludeRequestURI(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_INC_REQUEST_URI);
}
/**
* Gets the context path of the resource currently included.
* The value is read from the request attribute
* {@code "javax.servlet.include.context_path"}
*
* @param pRequest the servlet request
* @return the context path of the included resource, or {@code null} if no include
* @see HttpServletRequest#getContextPath
* @since Servlet 2.2
*/
public static String getIncludeContextPath(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_INC_CONTEXT_PATH);
}
/**
* Gets the servlet path of the resource currently included.
* The value is read from the request attribute
* {@code "javax.servlet.include.servlet_path"}
*
* @param pRequest the servlet request
* @return the servlet path of the included resource, or {@code null} if no include
* @see HttpServletRequest#getServletPath
* @since Servlet 2.2
*/
public static String getIncludeServletPath(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_INC_SERVLET_PATH);
}
/**
* Gets the path info of the resource currently included.
* The value is read from the request attribute
* {@code "javax.servlet.include.path_info"}
*
* @param pRequest the servlet request
* @return the path info of the included resource, or {@code null} if no include
* @see HttpServletRequest#getPathInfo
* @since Servlet 2.2
*/
public static String getIncludePathInfo(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_INC_PATH_INFO);
}
/**
* Gets the query string of the resource currently included.
* The value is read from the request attribute
* {@code "javax.servlet.include.query_string"}
*
* @param pRequest the servlet request
* @return the query string of the included resource, or {@code null} if no include
* @see HttpServletRequest#getQueryString
* @since Servlet 2.2
*/
public static String getIncludeQueryString(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_INC_QUERY_STRING);
}
/**
* Gets the URI of the resource this request was forwarded from.
* The value is read from the request attribute
* {@code "javax.servlet.forward.request_uri"}
*
* @param pRequest the servlet request
* @return the URI of the resource, or {@code null} if not forwarded
* @see HttpServletRequest#getRequestURI
* @since Servlet 2.4
*/
public static String getForwardRequestURI(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_FWD_REQUEST_URI);
}
/**
* Gets the context path of the resource this request was forwarded from.
* The value is read from the request attribute
* {@code "javax.servlet.forward.context_path"}
*
* @param pRequest the servlet request
* @return the context path of the resource, or {@code null} if not forwarded
* @see HttpServletRequest#getContextPath
* @since Servlet 2.4
*/
public static String getForwardContextPath(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_FWD_CONTEXT_PATH);
}
/**
* Gets the servlet path of the resource this request was forwarded from.
* The value is read from the request attribute
* {@code "javax.servlet.forward.servlet_path"}
*
* @param pRequest the servlet request
* @return the servlet path of the resource, or {@code null} if not forwarded
* @see HttpServletRequest#getServletPath
* @since Servlet 2.4
*/
public static String getForwardServletPath(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_FWD_SERVLET_PATH);
}
/**
* Gets the path info of the resource this request was forwarded from.
* The value is read from the request attribute
* {@code "javax.servlet.forward.path_info"}
*
* @param pRequest the servlet request
* @return the path info of the resource, or {@code null} if not forwarded
* @see HttpServletRequest#getPathInfo
* @since Servlet 2.4
*/
public static String getForwardPathInfo(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_FWD_PATH_INFO);
}
/**
* Gets the query string of the resource this request was forwarded from.
* The value is read from the request attribute
* {@code "javax.servlet.forward.query_string"}
*
* @param pRequest the servlet request
* @return the query string of the resource, or {@code null} if not forwarded
* @see HttpServletRequest#getQueryString
* @since Servlet 2.4
*/
public static String getForwardQueryString(final ServletRequest pRequest) {
return (String) pRequest.getAttribute(ATTRIB_FWD_QUERY_STRING);
}
/**
* Gets the name of the servlet or the script that generated the servlet.
*
* @param pRequest The HTTP servlet request object.
* @return the script name.
* @see javax.servlet.http.HttpServletRequest#getServletPath()
*/
// TODO: Read the spec, seems to be a mismatch with the Servlet API...
static String getScriptName(final HttpServletRequest pRequest) {
String requestURI = pRequest.getRequestURI();
return StringUtil.getLastElement(requestURI, "/");
}
/**
* Gets the request URI relative to the current context path.
* <p>
* As an example:
* </p>
* <pre>
* requestURI = "/webapp/index.jsp"
* contextPath = "/webapp"
* </pre>
* The method will return {@code "/index.jsp"}.
*
* @param pRequest the current HTTP request
* @return the request URI relative to the current context path.
*/
public static String getContextRelativeURI(final HttpServletRequest pRequest) {
String context = pRequest.getContextPath();
if (!StringUtil.isEmpty(context)) { // "" for root context
return pRequest.getRequestURI().substring(context.length());
}
return pRequest.getRequestURI();
}
/**
* Returns a {@code URL} containing the real path for a given virtual
* path, on URL form.
* Note that this method will return {@code null} for all the same reasons
* as {@code ServletContext.getRealPath(java.lang.String)} does.
*
* @param pContext the servlet context
* @param pPath the virtual path
* @return a {@code URL} object containing the path, or {@code null}.
* @throws MalformedURLException if the path refers to a malformed URL
* @see ServletContext#getRealPath(java.lang.String)
* @see ServletContext#getResource(java.lang.String)
*/
public static URL getRealURL(final ServletContext pContext, final String pPath) throws MalformedURLException {
String realPath = pContext.getRealPath(pPath);
if (realPath != null) {
// NOTE: First convert to URI, as of Java 6 File.toURL is deprecated
return new File(realPath).toURI().toURL();
}
return null;
}
/**
* Gets the temp directory for the given {@code ServletContext} (web app).
*
* @param pContext the servlet context
* @return the temp directory
*/
public static File getTempDir(final ServletContext pContext) {
return (File) pContext.getAttribute("javax.servlet.context.tempdir");
}
/**
* Gets the unique identifier assigned to this session.
* The identifier is assigned by the servlet container and is implementation
* dependent.
*
* @param pRequest The HTTP servlet request object.
* @return the session Id
*/
public static String getSessionId(final HttpServletRequest pRequest) {
HttpSession session = pRequest.getSession();
return (session != null) ? session.getId() : null;
}
/**
* Creates an unmodifiable {@code Map} view of the given
* {@code ServletConfig}s init-parameters.
* <small>Note: The returned {@code Map} is optimized for {@code get}
* operations and iterating over it's {@code keySet}.
* For other operations it may not perform well.</small>
*
* @param pConfig the servlet configuration
* @return a {@code Map} view of the config
* @throws IllegalArgumentException if {@code pConfig} is {@code null}
*/
public static Map<String, String> asMap(final ServletConfig pConfig) {
return new ServletConfigMapAdapter(pConfig);
}
/**
* Creates an unmodifiable {@code Map} view of the given
* {@code FilterConfig}s init-parameters.
* <small>Note: The returned {@code Map} is optimized for {@code get}
* operations and iterating over it's {@code keySet}.
* For other operations it may not perform well.</small>
*
* @param pConfig the servlet filter configuration
* @return a {@code Map} view of the config
* @throws IllegalArgumentException if {@code pConfig} is {@code null}
*/
public static Map<String, String> asMap(final FilterConfig pConfig) {
return new ServletConfigMapAdapter(pConfig);
}
/**
* Creates an unmodifiable {@code Map} view of the given
* {@code ServletContext}s init-parameters.
* <small>Note: The returned {@code Map} is optimized for {@code get}
* operations and iterating over it's {@code keySet}.
* For other operations it may not perform well.</small>
*
* @param pContext the servlet context
* @return a {@code Map} view of the init parameters
* @throws IllegalArgumentException if {@code pContext} is {@code null}
*/
public static Map<String, String> initParamsAsMap(final ServletContext pContext) {
return new ServletConfigMapAdapter(pContext);
}
/**
* Creates an <em>modifiable</em> {@code Map} view of the given
* {@code ServletContext}s attributes.
*
* @param pContext the servlet context
* @return a {@code Map} view of the attributes
* @throws IllegalArgumentException if {@code pContext} is {@code null}
*/
public static Map<String, Object> attributesAsMap(final ServletContext pContext) {
return new ServletAttributesMapAdapter(pContext);
}
/**
* Creates an <em>modifiable</em> {@code Map} view of the given
* {@code ServletRequest}s attributes.
*
* @param pRequest the servlet request
* @return a {@code Map} view of the attributes
* @throws IllegalArgumentException if {@code pContext} is {@code null}
*/
public static Map<String, Object> attributesAsMap(final ServletRequest pRequest) {
return new ServletAttributesMapAdapter(pRequest);
}
/**
* Creates an unmodifiable {@code Map} view of the given
* {@code HttpServletRequest}s request parameters.
*
* @param pRequest the request
* @return a {@code Map} view of the request parameters
* @throws IllegalArgumentException if {@code pRequest} is {@code null}
*/
public static Map<String, List<String>> parametersAsMap(final ServletRequest pRequest) {
return new ServletParametersMapAdapter(pRequest);
}
/**
* Creates an unmodifiable {@code Map} view of the given
* {@code HttpServletRequest}s request headers.
*
* @param pRequest the request
* @return a {@code Map} view of the request headers
* @throws IllegalArgumentException if {@code pRequest} is {@code null}
*/
public static Map<String, List<String>> headersAsMap(final HttpServletRequest pRequest) {
return new ServletHeadersMapAdapter(pRequest);
}
/**
* Creates a wrapper that implements either {@code ServletResponse} or
* {@code HttpServletResponse}, depending on the type of
* {@code pImplementation.getResponse()}.
*
* @param pImplementation the servlet response to create a wrapper for
* @return a {@code ServletResponse} or
* {@code HttpServletResponse}, depending on the type of
* {@code pImplementation.getResponse()}
*/
public static ServletResponse createWrapper(final ServletResponseWrapper pImplementation) {
// TODO: Get all interfaces from implementation
if (pImplementation.getResponse() instanceof HttpServletResponse) {
return (HttpServletResponse) Proxy.newProxyInstance(pImplementation.getClass().getClassLoader(),
new Class[]{HttpServletResponse.class, ServletResponse.class},
new HttpServletResponseHandler(pImplementation));
}
return pImplementation;
}
/**
* Creates a wrapper that implements either {@code ServletRequest} or
* {@code HttpServletRequest}, depending on the type of
* {@code pImplementation.getRequest()}.
*
* @param pImplementation the servlet request to create a wrapper for
* @return a {@code ServletResponse} or
* {@code HttpServletResponse}, depending on the type of
* {@code pImplementation.getResponse()}
*/
public static ServletRequest createWrapper(final ServletRequestWrapper pImplementation) {
// TODO: Get all interfaces from implementation
if (pImplementation.getRequest() instanceof HttpServletRequest) {
return (HttpServletRequest) Proxy.newProxyInstance(pImplementation.getClass().getClassLoader(),
new Class[]{HttpServletRequest.class, ServletRequest.class},
new HttpServletRequestHandler(pImplementation));
}
return pImplementation;
}
private static class HttpServletResponseHandler implements InvocationHandler {
private final ServletResponseWrapper response;
HttpServletResponseHandler(final ServletResponseWrapper pResponse) {
response = pResponse;
}
public Object invoke(final Object pProxy, final Method pMethod, final Object[] pArgs) throws Throwable {
try {
// TODO: Allow partial implementing?
if (pMethod.getDeclaringClass().isInstance(response)) {
return pMethod.invoke(response, pArgs);
}
// Method is not implemented in wrapper
return pMethod.invoke(response.getResponse(), pArgs);
}
catch (InvocationTargetException e) {
// Unwrap, to avoid UndeclaredThrowableException...
throw e.getTargetException();
}
}
}
private static class HttpServletRequestHandler implements InvocationHandler {
private final ServletRequestWrapper request;
HttpServletRequestHandler(final ServletRequestWrapper pRequest) {
request = pRequest;
}
public Object invoke(final Object pProxy, final Method pMethod, final Object[] pArgs) throws Throwable {
try {
// TODO: Allow partial implementing?
if (pMethod.getDeclaringClass().isInstance(request)) {
return pMethod.invoke(request, pArgs);
}
// Method is not implemented in wrapper
return pMethod.invoke(request.getRequest(), pArgs);
}
catch (InvocationTargetException e) {
// Unwrap, to avoid UndeclaredThrowableException...
throw e.getTargetException();
}
}
}
}

311
servlet/src/main/java/com/twelvemonkeys/servlet/ThrottleFilter.java
View File

@@ -1,311 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.io.FileUtil;
import com.twelvemonkeys.lang.StringUtil;
/**
* ThrottleFilter, a filter for easing server during heavy load.
* <p>
* Intercepts requests, and returns HTTP response code {@code 503 (Service Unavailable)},
* if there are more than a given number of concurrent
* requests, to avoid large backlogs. The number of concurrent requests and the
* response messages sent to the user agent, is configurable from the web
* descriptor.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ThrottleFilter.java#1 $
* @see #setMaxConcurrentThreadCount
* @see #setResponseMessages
*/
@Deprecated
public class ThrottleFilter extends GenericFilter {
/**
* Minimum free thread count, defaults to {@code 10}
*/
protected int maxConcurrentThreadCount = 10;
/**
* The number of running request threads
*/
private int runningThreads = 0;
private final Object runningThreadsLock = new Object();
/**
* Default response message sent to user agents, if the request is rejected
*/
protected final static String DEFUALT_RESPONSE_MESSAGE =
"Service temporarily unavailable, please try again later.";
/**
* Default response content type
*/
protected static final String DEFAULT_TYPE = "text/html";
/**
* The reposne message sent to user agenta, if the request is rejected
*/
private Map<String, String> responseMessageNames = new HashMap<String, String>(10);
/**
* The reposne message sent to user agents, if the request is rejected
*/
private String[] responseMessageTypes = null;
/**
* Cache for response messages
*/
private Map<String, CacheEntry> responseCache = new HashMap<String, CacheEntry>(10);
/**
* Sets the minimum free thread count.
*
* @param pMaxConcurrentThreadCount
*/
public void setMaxConcurrentThreadCount(String pMaxConcurrentThreadCount) {
if (!StringUtil.isEmpty(pMaxConcurrentThreadCount)) {
try {
maxConcurrentThreadCount = Integer.parseInt(pMaxConcurrentThreadCount);
}
catch (NumberFormatException nfe) {
// Use default
}
}
}
/**
* Sets the response message sent to the user agent, if the request is
* rejected.
* <br>
* The format is {@code &lt;mime-type&gt;=&lt;filename&gt;,
* &lt;mime-type&gt;=&lt;filename&gt;}.
* <br>
* Example: {@code &lt;text/vnd.wap.wmlgt;=&lt;/errors/503.wml&gt;,
* &lt;text/html&gt;=&lt;/errors/503.html&gt;}
*
* @param pResponseMessages
*/
public void setResponseMessages(String pResponseMessages) {
// Split string in type=filename pairs
String[] mappings = StringUtil.toStringArray(pResponseMessages, ", \r\n\t");
List<String> types = new ArrayList<String>();
for (String pair : mappings) {
// Split pairs on '='
String[] mapping = StringUtil.toStringArray(pair, "= ");
// Test for wrong mapping
if ((mapping == null) || (mapping.length < 2)) {
log("Error in init param \"responseMessages\": " + pResponseMessages);
continue;
}
types.add(mapping[0]);
responseMessageNames.put(mapping[0], mapping[1]);
}
// Create arrays
responseMessageTypes = types.toArray(new String[types.size()]);
}
/**
* @param pRequest
* @param pResponse
* @param pChain
* @throws IOException
* @throws ServletException
*/
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
try {
if (beginRequest()) {
// Continue request
pChain.doFilter(pRequest, pResponse);
}
else {
// Send error and end request
// Get HTTP specific versions
HttpServletRequest request = (HttpServletRequest) pRequest;
HttpServletResponse response = (HttpServletResponse) pResponse;
// Get content type
String contentType = getContentType(request);
// Note: This is not the way the spec says you should do it.
// However, we handle error response this way for preformace reasons.
// The "correct" way would be to use sendError() and register a servlet
// that does the content negotiation as errorpage in the web descriptor.
response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
response.setContentType(contentType);
response.getWriter().println(getMessage(contentType));
// Log warning, as this shouldn't happen too often
log("Request denied, no more available threads for requestURI=" + request.getRequestURI());
}
}
finally {
doneRequest();
}
}
/**
* Marks the beginning of a request
*
* @return {@code true} if the request should be handled.
*/
private boolean beginRequest() {
synchronized (runningThreadsLock) {
runningThreads++;
}
return (runningThreads <= maxConcurrentThreadCount);
}
/**
* Marks the end of the request
*/
private void doneRequest() {
synchronized (runningThreadsLock) {
runningThreads--;
}
}
/**
* Gets the content type for the response, suitable for the requesting user agent.
*
* @param pRequest
* @return the content type
*/
private String getContentType(HttpServletRequest pRequest) {
if (responseMessageTypes != null) {
String accept = pRequest.getHeader("Accept");
for (String type : responseMessageTypes) {
// Note: This is not 100% correct way of doing content negotiation
// But we just want a compatible result, quick, so this is okay
if (StringUtil.contains(accept, type)) {
return type;
}
}
}
// If none found, return default
return DEFAULT_TYPE;
}
/**
* Gets the response message for the given content type.
*
* @param pContentType
* @return the message
*/
private String getMessage(String pContentType) {
String fileName = responseMessageNames.get(pContentType);
// Get cached value
CacheEntry entry = responseCache.get(fileName);
if ((entry == null) || entry.isExpired()) {
// Create and add or replace cached value
entry = new CacheEntry(readMessage(fileName));
responseCache.put(fileName, entry);
}
// Return value
return (entry.getValue() != null)
? (String) entry.getValue()
: DEFUALT_RESPONSE_MESSAGE;
}
/**
* Reads the response message from a file in the current web app.
*
* @param pFileName
* @return the message
*/
private String readMessage(String pFileName) {
try {
// Read resource from web app
InputStream is = getServletContext().getResourceAsStream(pFileName);
if (is != null) {
return new String(FileUtil.read(is));
}
else {
log("File not found: " + pFileName);
}
}
catch (IOException ioe) {
log("Error reading file: " + pFileName + " (" + ioe.getMessage() + ")");
}
return null;
}
/**
* Keeps track of Cached objects
*/
private static class CacheEntry {
private Object value;
private long timestamp = -1;
CacheEntry(Object pValue) {
value = pValue;
timestamp = System.currentTimeMillis();
}
Object getValue() {
return value;
}
boolean isExpired() {
return (System.currentTimeMillis() - timestamp) > 60000; // Cache 1 minute
}
}
}

116
servlet/src/main/java/com/twelvemonkeys/servlet/TimingFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
/**
* TimingFilter class description.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: TimingFilter.java#1 $
*/
@Deprecated
public class TimingFilter extends GenericFilter {
private String attribUsage = null;
/**
* Method init
*
* @throws ServletException
*/
public void init() throws ServletException {
attribUsage = getFilterName() + ".timerDelta";
}
/**
*
* @param pRequest
* @param pResponse
* @param pChain
* @throws IOException
* @throws ServletException
*/
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain)
throws IOException, ServletException {
// Get total usage of earlier filters on same level
Object usageAttrib = pRequest.getAttribute(attribUsage);
long total = 0;
if (usageAttrib instanceof Long) {
// If set, get value, and remove attribute for nested resources
total = (Long) usageAttrib;
pRequest.removeAttribute(attribUsage);
}
// Start timing
long start = System.currentTimeMillis();
try {
// Continue chain
pChain.doFilter(pRequest, pResponse);
}
finally {
// Stop timing
long end = System.currentTimeMillis();
// Get time usage of included resources, add to total usage
usageAttrib = pRequest.getAttribute(attribUsage);
long usage = 0;
if (usageAttrib instanceof Long) {
usage = (Long) usageAttrib;
}
// Get the name of the included resource
String resourceURI = ServletUtil.getIncludeRequestURI(pRequest);
// If none, this is probably the parent page itself
if (resourceURI == null) {
resourceURI = ((HttpServletRequest) pRequest).getRequestURI();
}
long delta = end - start;
log(String.format("Request processing time for resource \"%s\": %d ms (accumulated: %d ms).", resourceURI, (delta - usage), delta));
// Store total usage
total += delta;
pRequest.setAttribute(attribUsage, total);
}
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/TrimWhiteSpaceFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.ServletResponseWrapper;
/**
* Removes extra unneccessary white space from a servlet response.
* White space is defined as per {@link Character#isWhitespace(char)}.
* <p>
* This filter has no understanding of the content in the reponse, and will
* remove repeated white space anywhere in the stream. It is intended for
* removing white space from HTML or XML streams, but this limitation makes it
* less suited for filtering HTML/XHTML with embedded CSS or JavaScript,
* in case white space should be significant here. It is strongly reccommended
* you keep CSS and JavaScript in separate files (this will have the added
* benefit of further reducing the ammount of data communicated between
* server and client).
* </p>
* <p>
* <em>At the moment this filter has no concept of encoding</em>.
* This means, that if some multi-byte escape sequence contains one or more
* bytes that <em>individually</em> is treated as a white space, these bytes
* may be skipped.
* As <a href="http://en.wikipedia.org/wiki/UTF-8">UTF-8</a>
* guarantees that no bytes are repeated in this way, this filter can safely
* filter UTF-8.
* Simple 8 bit character encodings, like the
* <a href="http://en.wikipedia.org/wiki/ISO/IEC_8859">ISO/IEC 8859</a> standard, or
* <a href="http://en.wikipedia.org/wiki/Windows-1252">Windows-1252"</a>
* are always safe.
* </p>
* <p>
* <b>Configuration</b>
* <br>
* To use {@code TrimWhiteSpaceFilter} in your web-application, you simply need
* to add it to your web descriptor ({@code web.xml}).
* If using a servlet container that supports the Servlet 2.4 spec, the new
* {@code dispatcher} element should be used, and set to
* {@code REQUEST/FORWARD}, to make sure the filter is invoked only once for
* requests.
* If using an older web descriptor, set the {@code init-param}
* {@code "once-per-request"} to {@code "true"} (this will have the same effect,
* but might perform slightly worse than the 2.4 version).
* Please see the examples below.
* </p>
* <p>
* <b>Servlet 2.4 version, filter section:</b>
* </p>
* <pre>
* &lt;!-- TrimWS Filter Configuration --&gt;
* &lt;filter&gt;
* &lt;filter-name&gt;trimws&lt;/filter-name&gt;
* &lt;filter-class&gt;com.twelvemonkeys.servlet.TrimWhiteSpaceFilter&lt;/filter-class&gt;
* &lt;!-- auto-flush=true is the default, may be omitted --&gt;
* &lt;init-param&gt;
* &lt;param-name&gt;auto-flush&lt;/param-name&gt;
* &lt;param-value&gt;true&lt;/param-value&gt;
* &lt;/init-param&gt;
* &lt;/filter&gt;
* </pre>
* <b>Filter-mapping section:</b><br>
* <pre>
* &lt;!-- TimWS Filter Mapping --&gt;
* &lt;filter-mapping&gt;
* &lt;filter-name&gt;trimws&lt;/filter-name&gt;
* &lt;url-pattern&gt;*.html&lt;/url-pattern&gt;
* &lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;
* &lt;dispatcher&gt;FORWARD&lt;/dispatcher&gt;
* &lt;/filter-mapping&gt;
* &lt;filter-mapping&gt;
* &lt;filter-name&gt;trimws&lt;/filter-name&gt;
* &lt;url-pattern&gt;*.jsp&lt;/url-pattern&gt;
* &lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;
* &lt;dispatcher&gt;FORWARD&lt;/dispatcher&gt;
* &lt;/filter-mapping&gt;
* </pre>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: TrimWhiteSpaceFilter.java#2 $
*/
@Deprecated
public class TrimWhiteSpaceFilter extends GenericFilter {
private boolean autoFlush = true;
@InitParam
public void setAutoFlush(final boolean pAutoFlush) {
autoFlush = pAutoFlush;
}
public void init() throws ServletException {
super.init();
log("Automatic flushing is " + (autoFlush ? "enabled" : "disabled"));
}
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
ServletResponseWrapper wrapped = new TrimWSServletResponseWrapper(pResponse);
pChain.doFilter(pRequest, ServletUtil.createWrapper(wrapped));
if (autoFlush) {
wrapped.flushBuffer();
}
}
static final class TrimWSFilterOutputStream extends FilterOutputStream {
boolean lastWasWS = true; // Avoids leading WS by init to true
public TrimWSFilterOutputStream(OutputStream pOut) {
super(pOut);
}
// Override this, in case the wrapped outputstream overrides...
public final void write(byte pBytes[]) throws IOException {
write(pBytes, 0, pBytes.length);
}
// Override this, in case the wrapped outputstream overrides...
public final void write(byte pBytes[], int pOff, int pLen) throws IOException {
if (pBytes == null) {
throw new NullPointerException("bytes == null");
}
else if (pOff < 0 || pLen < 0 || (pOff + pLen > pBytes.length)) {
throw new IndexOutOfBoundsException("Bytes: " + pBytes.length + " Offset: " + pOff + " Length: " + pLen);
}
for (int i = 0; i < pLen ; i++) {
write(pBytes[pOff + i]);
}
}
public void write(int pByte) throws IOException {
// TODO: Is this good enough for multi-byte encodings like UTF-16?
// Consider writing through a Writer that does that for us, and
// also buffer whitespace, so we write a linefeed every time there's
// one in the original...
// According to http://en.wikipedia.org/wiki/UTF-8:
// "[...] US-ASCII octet values do not appear otherwise in a UTF-8
// encoded character stream. This provides compatibility with file
// systems or other software (e.g., the printf() function in
// C libraries) that parse based on US-ASCII values but are
// transparent to other values."
if (!Character.isWhitespace((char) pByte)) {
// If char is not WS, just store
super.write(pByte);
lastWasWS = false;
}
else {
// TODO: Consider writing only 0x0a (LF) and 0x20 (space)
// Else, if char is WS, store first, skip the rest
if (!lastWasWS) {
if (pByte == 0x0d) { // Convert all CR/LF's to 0x0a
super.write(0x0a);
}
else {
super.write(pByte);
}
}
lastWasWS = true;
}
}
}
private static class TrimWSStreamDelegate extends ServletResponseStreamDelegate {
public TrimWSStreamDelegate(ServletResponse pResponse) {
super(pResponse);
}
protected OutputStream createOutputStream() throws IOException {
return new TrimWSFilterOutputStream(response.getOutputStream());
}
}
static class TrimWSServletResponseWrapper extends ServletResponseWrapper {
private final ServletResponseStreamDelegate streamDelegate = new TrimWSStreamDelegate(getResponse());
public TrimWSServletResponseWrapper(ServletResponse pResponse) {
super(pResponse);
}
public ServletOutputStream getOutputStream() throws IOException {
return streamDelegate.getOutputStream();
}
public PrintWriter getWriter() throws IOException {
return streamDelegate.getWriter();
}
public void setContentLength(int pLength) {
// Will be changed by filter, so don't set.
}
@Override
public void flushBuffer() throws IOException {
streamDelegate.flushBuffer();
}
@Override
public void resetBuffer() {
streamDelegate.resetBuffer();
}
// TODO: Consider picking up content-type/encoding, as we can only
// filter US-ASCII, UTF-8 and other compatible encodings?
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/AbstractCacheResponse.java vendored
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
/**
* AbstractCacheResponse
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: AbstractCacheResponse.java#1 $
*/
@Deprecated
public abstract class AbstractCacheResponse implements CacheResponse {
private int status;
private final Map<String, List<String>> headers = new LinkedHashMap<String, List<String>>(); // Insertion order
private final Map<String, List<String>> readableHeaders = Collections.unmodifiableMap(headers);
public int getStatus() {
return status;
}
public void setStatus(int pStatusCode) {
status = pStatusCode;
}
public void addHeader(String pHeaderName, String pHeaderValue) {
setHeader(pHeaderName, pHeaderValue, true);
}
public void setHeader(String pHeaderName, String pHeaderValue) {
setHeader(pHeaderName, pHeaderValue, false);
}
private void setHeader(String pHeaderName, String pHeaderValue, boolean pAdd) {
List<String> values = pAdd ? headers.get(pHeaderName) : null;
if (values == null) {
values = new ArrayList<String>();
headers.put(pHeaderName, values);
}
values.add(pHeaderValue);
}
public Map<String, List<String>> getHeaders() {
return readableHeaders;
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/CacheFilter.java vendored
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.GenericFilter;
import com.twelvemonkeys.servlet.ServletConfigException;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* A Filter that provides response caching, for HTTP {@code GET} requests.
* <p>
* Originally based on ideas and code found in the ONJava article
* <a href="http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html">Two
* Servlet Filters Every Web Application Should Have</a>
* by Jayson Falkner.
* </p>
*
* @author Jayson Falkner
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: CacheFilter.java#4 $
*
*/
@Deprecated
public class CacheFilter extends GenericFilter {
HTTPCache cache;
/**
* Initializes the filter
*
* @throws javax.servlet.ServletException
*/
public void init() throws ServletException {
FilterConfig config = getFilterConfig();
// Default don't delete cache files on exit (persistent cache)
boolean deleteCacheOnExit = "TRUE".equalsIgnoreCase(config.getInitParameter("deleteCacheOnExit"));
// Default expiry time 10 minutes
int expiryTime = 10 * 60 * 1000;
String expiryTimeStr = config.getInitParameter("expiryTime");
if (!StringUtil.isEmpty(expiryTimeStr)) {
try {
// TODO: This is insane.. :-P Let the expiry time be in minutes or seconds..
expiryTime = Integer.parseInt(expiryTimeStr);
}
catch (NumberFormatException e) {
throw new ServletConfigException("Could not parse expiryTime: " + e.toString(), e);
}
}
// Default max mem cache size 10 MB
int memCacheSize = 10;
String memCacheSizeStr = config.getInitParameter("memCacheSize");
if (!StringUtil.isEmpty(memCacheSizeStr)) {
try {
memCacheSize = Integer.parseInt(memCacheSizeStr);
}
catch (NumberFormatException e) {
throw new ServletConfigException("Could not parse memCacheSize: " + e.toString(), e);
}
}
int maxCachedEntites = 10000;
try {
cache = new HTTPCache(
getTempFolder(),
expiryTime,
memCacheSize * 1024 * 1024,
maxCachedEntites,
deleteCacheOnExit,
new ServletContextLoggerAdapter(getFilterName(), getServletContext())
) {
@Override
protected File getRealFile(CacheRequest pRequest) {
String contextRelativeURI = ServletUtil.getContextRelativeURI(((ServletCacheRequest) pRequest).getRequest());
String path = getServletContext().getRealPath(contextRelativeURI);
if (path != null) {
return new File(path);
}
return null;
}
};
log("Created cache: " + cache);
}
catch (IllegalArgumentException e) {
throw new ServletConfigException("Could not create cache: " + e.toString(), e);
}
}
private File getTempFolder() {
File tempRoot = (File) getServletContext().getAttribute("javax.servlet.context.tempdir");
if (tempRoot == null) {
throw new IllegalStateException("Missing context attribute \"javax.servlet.context.tempdir\"");
}
return new File(tempRoot, getFilterName());
}
public void destroy() {
log("Destroying cache: " + cache);
cache = null;
super.destroy();
}
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
// We can only cache HTTP GET/HEAD requests
if (!(pRequest instanceof HttpServletRequest
&& pResponse instanceof HttpServletResponse
&& isCachable((HttpServletRequest) pRequest))) {
pChain.doFilter(pRequest, pResponse); // Continue chain
}
else {
ServletCacheRequest cacheRequest = new ServletCacheRequest((HttpServletRequest) pRequest);
ServletCacheResponse cacheResponse = new ServletCacheResponse((HttpServletResponse) pResponse);
ServletResponseResolver resolver = new ServletResponseResolver(cacheRequest, cacheResponse, pChain);
// Render fast
try {
cache.doCached(cacheRequest, cacheResponse, resolver);
}
catch (CacheException e) {
if (e.getCause() instanceof ServletException) {
throw (ServletException) e.getCause();
}
else {
throw new ServletException(e);
}
}
finally {
pResponse.flushBuffer();
}
}
}
private boolean isCachable(HttpServletRequest pRequest) {
// TODO: Get Cache-Control: no-cache/max-age=0 and Pragma: no-cache from REQUEST too?
return "GET".equals(pRequest.getMethod()) || "HEAD".equals(pRequest.getMethod());
}
// TODO: Extract, complete and document this class, might be useful in other cases
// Maybe add it to the ServletUtil class
static class ServletContextLoggerAdapter extends Logger {
private final ServletContext context;
public ServletContextLoggerAdapter(String pName, ServletContext pContext) {
super(pName, null);
context = pContext;
}
@Override
public void log(Level pLevel, String pMessage) {
context.log(pMessage);
}
@Override
public void log(Level pLevel, String pMessage, Throwable pThrowable) {
context.log(pMessage, pThrowable);
}
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/CacheRequest.java vendored
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.net.URI;
import java.util.List;
import java.util.Map;
/**
* CacheRequest
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: CacheRequest.java#1 $
*/
@Deprecated
public interface CacheRequest {
URI getRequestURI();
String getMethod();
Map<String, List<String>> getHeaders();
Map<String, List<String>> getParameters();
String getServerName();
int getServerPort();
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/CacheResponse.java vendored
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;
/**
* CacheResponse
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: CacheResponse.java#1 $
*/
@Deprecated
public interface CacheResponse {
OutputStream getOutputStream() throws IOException;
void setStatus(int pStatusCode);
int getStatus();
void addHeader(String pHeaderName, String pHeaderValue);
void setHeader(String pHeaderName, String pHeaderValue);
Map<String, List<String>> getHeaders();
}

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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponseWrapper;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.net.HTTPUtil;
import com.twelvemonkeys.servlet.ServletResponseStreamDelegate;
/**
* CacheResponseWrapper class description.
* <p>
* Based on ideas and code found in the ONJava article
* <a href="http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html">Two
* Servlet Filters Every Web Application Should Have</a>
* by Jayson Falkner.
* </p>
*
* @author Jayson Falkner
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: CacheResponseWrapper.java#3 $
*/
@Deprecated
class CacheResponseWrapper extends HttpServletResponseWrapper {
private ServletResponseStreamDelegate streamDelegate;
private CacheResponse response;
private CachedEntity cached;
private WritableCachedResponse cachedResponse;
private Boolean cacheable;
private int status;
public CacheResponseWrapper(final ServletCacheResponse pResponse, final CachedEntity pCached) {
super(pResponse.getResponse());
response = pResponse;
cached = pCached;
init();
}
/*
NOTE: This class defers determining if a response is cacheable until the
output stream is needed.
This it the reason for the somewhat complicated logic in the add/setHeader
methods below.
*/
private void init() {
cacheable = null;
status = SC_OK;
cachedResponse = cached.createCachedResponse();
streamDelegate = new ServletResponseStreamDelegate(this) {
protected OutputStream createOutputStream() throws IOException {
// Test if this request is really cacheable, otherwise,
// just write through to underlying response, and don't cache
if (isCacheable()) {
return cachedResponse.getOutputStream();
}
else {
cachedResponse.setStatus(status);
cachedResponse.writeHeadersTo(CacheResponseWrapper.this.response);
return super.getOutputStream();
}
}
};
}
CachedResponse getCachedResponse() {
return cachedResponse.getCachedResponse();
}
public boolean isCacheable() {
// NOTE: Intentionally not synchronized
if (cacheable == null) {
cacheable = isCacheableImpl();
}
return cacheable;
}
private boolean isCacheableImpl() {
if (status != SC_OK) {
return false;
}
// Vary: *
String[] values = cachedResponse.getHeaderValues(HTTPCache.HEADER_VARY);
if (values != null) {
for (String value : values) {
if ("*".equals(value)) {
return false;
}
}
}
// Cache-Control: no-cache, no-store, must-revalidate
values = cachedResponse.getHeaderValues(HTTPCache.HEADER_CACHE_CONTROL);
if (values != null) {
for (String value : values) {
if (StringUtil.contains(value, "no-cache")
|| StringUtil.contains(value, "no-store")
|| StringUtil.contains(value, "must-revalidate")) {
return false;
}
}
}
// Pragma: no-cache
values = cachedResponse.getHeaderValues(HTTPCache.HEADER_PRAGMA);
if (values != null) {
for (String value : values) {
if (StringUtil.contains(value, "no-cache")) {
return false;
}
}
}
return true;
}
public void flushBuffer() throws IOException {
streamDelegate.flushBuffer();
}
public void resetBuffer() {
// Servlet 2.3
streamDelegate.resetBuffer();
}
public void reset() {
if (Boolean.FALSE.equals(cacheable)) {
super.reset();
}
// No else, might be cacheable after all..
init();
}
public ServletOutputStream getOutputStream() throws IOException {
return streamDelegate.getOutputStream();
}
public PrintWriter getWriter() throws IOException {
return streamDelegate.getWriter();
}
public boolean containsHeader(String name) {
return cachedResponse.getHeaderValues(name) != null;
}
public void sendError(int pStatusCode, String msg) throws IOException {
// NOT cacheable
status = pStatusCode;
super.sendError(pStatusCode, msg);
}
public void sendError(int pStatusCode) throws IOException {
// NOT cacheable
status = pStatusCode;
super.sendError(pStatusCode);
}
public void setStatus(int pStatusCode, String sm) {
// NOTE: This method is deprecated
setStatus(pStatusCode);
}
public void setStatus(int pStatusCode) {
// NOT cacheable unless pStatusCode == 200 (or a FEW others?)
if (pStatusCode != SC_OK) {
status = pStatusCode;
super.setStatus(pStatusCode);
}
}
public void sendRedirect(String pLocation) throws IOException {
// NOT cacheable
status = SC_MOVED_TEMPORARILY;
super.sendRedirect(pLocation);
}
public void setDateHeader(String pName, long pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setDateHeader(pName, pValue);
}
cachedResponse.setHeader(pName, HTTPUtil.formatHTTPDate(pValue));
}
public void addDateHeader(String pName, long pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addDateHeader(pName, pValue);
}
cachedResponse.addHeader(pName, HTTPUtil.formatHTTPDate(pValue));
}
public void setHeader(String pName, String pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setHeader(pName, pValue);
}
cachedResponse.setHeader(pName, pValue);
}
public void addHeader(String pName, String pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addHeader(pName, pValue);
}
cachedResponse.addHeader(pName, pValue);
}
public void setIntHeader(String pName, int pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setIntHeader(pName, pValue);
}
cachedResponse.setHeader(pName, String.valueOf(pValue));
}
public void addIntHeader(String pName, int pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addIntHeader(pName, pValue);
}
cachedResponse.addHeader(pName, String.valueOf(pValue));
}
public final void setContentType(String type) {
setHeader(HTTPCache.HEADER_CONTENT_TYPE, type);
}
}

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@@ -1,78 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
/**
* CachedEntity
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: CachedEntity.java#3 $
*/
@Deprecated
interface CachedEntity {
/**
* Renders the cached entity to the response.
*
* @param pRequest the request
* @param pResponse the response
* @throws java.io.IOException if an I/O exception occurs
*/
void render(CacheRequest pRequest, CacheResponse pResponse) throws IOException;
/**
* Captures (caches) the response for the given request.
*
* @param pRequest the request
* @param pResponse the response
* @throws java.io.IOException if an I/O exception occurs
*
* @see #createCachedResponse()
*/
void capture(CacheRequest pRequest, CachedResponse pResponse) throws IOException;
/**
* Tests if the content of this entity is stale for the given request.
*
* @param pRequest the request
* @return {@code true} if content is stale
*/
boolean isStale(CacheRequest pRequest);
/**
* Creates a {@code WritableCachedResponse} to use to capture the response.
*
* @return a {@code WritableCachedResponse}
*/
WritableCachedResponse createCachedResponse();
}

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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.lang.Validate;
/**
* CachedEntity
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: CachedEntityImpl.java#3 $
*/
@Deprecated
class CachedEntityImpl implements CachedEntity {
private String cacheURI;
private HTTPCache cache;
CachedEntityImpl(String pCacheURI, HTTPCache pCache) {
cacheURI = Validate.notNull(pCacheURI, "cacheURI");
cache = pCache;
}
public void render(CacheRequest pRequest, CacheResponse pResponse) throws IOException {
// Get cached content
CachedResponse cached = cache.getContent(cacheURI, pRequest);
// Sanity check
if (cached == null) {
throw new IllegalStateException("Tried to render non-cached response (cache == null).");
}
// If the cached entity is not modified since the date of the browsers
// version, then simply send a "304 Not Modified" response
// Otherwise send the full response.
// TODO: WHY DID I COMMENT OUT THIS LINE AND REPLACE IT WITH THE ONE BELOW??
//long lastModified = HTTPCache.getDateHeader(cached.getHeaderValue(HTTPCache.HEADER_LAST_MODIFIED));
long lastModified = HTTPCache.getDateHeader(cached.getHeaderValue(HTTPCache.HEADER_CACHED_TIME));
// TODO: Consider handling time skews between server "now" and client "now"?
// NOTE: The If-Modified-Since is probably right according to the server
// even in a time skew situation, as the client should use either the
// Date or Last-Modifed dates from the response headers (server generated)
long ifModifiedSince = -1L;
try {
List<String> ifmh = pRequest.getHeaders().get(HTTPCache.HEADER_IF_MODIFIED_SINCE);
ifModifiedSince = ifmh != null ? HTTPCache.getDateHeader(ifmh.get(0)) : -1L;
if (ifModifiedSince != -1L) {
/*
long serverTime = DateUtil.currentTimeMinute();
long clientTime = DateUtil.roundToMinute(pRequest.getDateHeader(HTTPCache.HEADER_DATE));
// Test if time skew is greater than time skew threshold (currently 1 minute)
if (Math.abs(serverTime - clientTime) > 1) {
// TODO: Correct error in ifModifiedSince?
}
*/
// System.out.println(" << CachedEntity >> If-Modified-Since present: " + ifModifiedSince + " --> " + NetUtil.formatHTTPDate(ifModifiedSince) + "==" + pRequest.getHeader(HTTPCache.HEADER_IF_MODIFIED_SINCE));
// System.out.println(" << CachedEntity >> Last-Modified for entity: " + lastModified + " --> " + NetUtil.formatHTTPDate(lastModified));
}
}
catch (IllegalArgumentException e) {
// Seems to be a bug in FireFox 1.0.2..?!
cache.log("Error in date header from user-agent. User-Agent: " + pRequest.getHeaders().get("User-Agent"), e);
}
if (lastModified == -1L || (ifModifiedSince < (lastModified / 1000L) * 1000L)) {
pResponse.setStatus(cached.getStatus());
cached.writeHeadersTo(pResponse);
if (isStale(pRequest)) {
// Add warning header
// Warning: 110 <server>:<port> Content is stale
pResponse.addHeader(HTTPCache.HEADER_WARNING, "110 " + getHost(pRequest) + " Content is stale.");
}
// NOTE: At the moment we only ever try to cache HEAD and GET requests
if (!"HEAD".equals(pRequest.getMethod())) {
cached.writeContentsTo(pResponse.getOutputStream());
}
}
else {
pResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
// System.out.println(" << CachedEntity >> Not modified: " + toString());
if (isStale(pRequest)) {
// Add warning header
// Warning: 110 <server>:<port> Content is stale
pResponse.addHeader(HTTPCache.HEADER_WARNING, "110 " + getHost(pRequest) + " Content is stale.");
}
}
}
/* Utility method to get Host header */
private static String getHost(CacheRequest pRequest) {
return pRequest.getServerName() + ":" + pRequest.getServerPort();
}
public void capture(CacheRequest pRequest, CachedResponse pResponse) throws IOException {
// if (!(pResponse instanceof CacheResponseWrapper)) {
// throw new IllegalArgumentException("Response must be created by CachedEntity.createResponseWrapper()");
// }
//
// CacheResponseWrapper response = (CacheResponseWrapper) pResponse;
// if (response.isCacheable()) {
cache.registerContent(
cacheURI,
pRequest,
pResponse instanceof WritableCachedResponse ? ((WritableCachedResponse) pResponse).getCachedResponse() : pResponse
);
// }
// else {
// Else store that the response for this request is not cachable
// pRequest.setAttribute(ATTRIB_NOT_CACHEABLE, Boolean.TRUE);
// TODO: Store this in HTTPCache, for subsequent requests to same resource?
// }
}
public boolean isStale(CacheRequest pRequest) {
return cache.isContentStale(cacheURI, pRequest);
}
public WritableCachedResponse createCachedResponse() {
return new WritableCachedResponseImpl();
}
public int hashCode() {
return (cacheURI != null ? cacheURI.hashCode() : 0) + 1397;
}
public boolean equals(Object pOther) {
return pOther instanceof CachedEntityImpl &&
((cacheURI == null && ((CachedEntityImpl) pOther).cacheURI == null) ||
cacheURI != null && cacheURI.equals(((CachedEntityImpl) pOther).cacheURI));
}
public String toString() {
return "CachedEntity[URI=" + cacheURI + "]";
}
}

98
servlet/src/main/java/com/twelvemonkeys/servlet/cache/CachedResponse.java vendored
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@@ -1,98 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.io.OutputStream;
/**
* CachedResponse
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: CachedResponse.java#3 $
*/
@Deprecated
interface CachedResponse {
/**
* Writes the cached headers to the response
*
* @param pResponse the servlet response
*/
void writeHeadersTo(CacheResponse pResponse);
/**
* Writes the cahced content to the response
*
* @param pStream the response output stream
* @throws IOException if an I/O exception occurs during write
*/
void writeContentsTo(OutputStream pStream) throws IOException;
int getStatus();
// TODO: Map<String, List<String>> getHeaders()
/**
* Gets the header names of all headers set in this response.
*
* @return an array of {@code String}s
*/
String[] getHeaderNames();
/**
* Gets all header values set for the given header in this response. If the
* header is not set, {@code null} is returned.
*
* @param pHeaderName the header name
* @return an array of {@code String}s, or {@code null} if there is no
* such header in this response.
*/
String[] getHeaderValues(String pHeaderName);
/**
* Gets the first header value set for the given header in this response.
* If the header is not set, {@code null} is returned.
* Useful for headers that don't have multiple values, like
* {@code "Content-Type"} or {@code "Content-Length"}.
*
* @param pHeaderName the header name
* @return a {@code String}, or {@code null} if there is no
* such header in this response.
*/
String getHeaderValue(String pHeaderName);
/**
* Returns the size of this cached response in bytes.
*
* @return the size
*/
int size();
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/CachedResponseImpl.java vendored
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@@ -1,220 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.twelvemonkeys.io.FastByteArrayOutputStream;
import com.twelvemonkeys.lang.Validate;
/**
* CachedResponseImpl
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: CachedResponseImpl.java#4 $
*/
@Deprecated
class CachedResponseImpl implements CachedResponse {
final protected Map<String, List<String>> headers;
protected int headersSize;
protected ByteArrayOutputStream content = null;
int status;
protected CachedResponseImpl() {
headers = new LinkedHashMap<String, List<String>>(); // Keep headers in insertion order
}
// For use by HTTPCache, when recreating CachedResponses from disk cache
CachedResponseImpl(final int pStatus, final LinkedHashMap<String, List<String>> pHeaders, final int pHeaderSize, final byte[] pContent) {
status = pStatus;
headers = Validate.notNull(pHeaders, "headers");
headersSize = pHeaderSize;
content = new FastByteArrayOutputStream(pContent);
}
public int getStatus() {
return status;
}
/**
* Writes the cached headers to the response
*
* @param pResponse the response
*/
public void writeHeadersTo(final CacheResponse pResponse) {
String[] headers = getHeaderNames();
for (String header : headers) {
// HACK...
// Strip away internal headers
if (HTTPCache.HEADER_CACHED_TIME.equals(header)) {
continue;
}
// TODO: Replace Last-Modified with X-Cached-At? See CachedEntityImpl
String[] headerValues = getHeaderValues(header);
for (int i = 0; i < headerValues.length; i++) {
String headerValue = headerValues[i];
if (i == 0) {
pResponse.setHeader(header, headerValue);
}
else {
pResponse.addHeader(header, headerValue);
}
}
}
}
/**
* Writes the cached content to the response
*
* @param pStream the response stream
* @throws java.io.IOException
*/
public void writeContentsTo(final OutputStream pStream) throws IOException {
if (content == null) {
throw new IOException("Cache is null, no content to write.");
}
content.writeTo(pStream);
}
/**
* Gets the header names of all headers set in this response.
*
* @return an array of {@code String}s
*/
public String[] getHeaderNames() {
Set<String> headers = this.headers.keySet();
return headers.toArray(new String[headers.size()]);
}
/**
* Gets all header values set for the given header in this response. If the
* header is not set, {@code null} is returned.
*
* @param pHeaderName the header name
* @return an array of {@code String}s, or {@code null} if there is no
* such header in this response.
*/
public String[] getHeaderValues(final String pHeaderName) {
List<String> values = headers.get(pHeaderName);
return values == null ? null : values.toArray(new String[values.size()]);
}
/**
* Gets the first header value set for the given header in this response.
* If the header is not set, {@code null} is returned.
* Useful for headers that don't have multiple values, like
* {@code "Content-Type"} or {@code "Content-Length"}.
*
* @param pHeaderName the header name
* @return a {@code String}, or {@code null} if there is no
* such header in this response.
*/
public String getHeaderValue(final String pHeaderName) {
List<String> values = headers.get(pHeaderName);
return (values != null && values.size() > 0) ? values.get(0) : null;
}
public int size() {
// content.size() is exact size in bytes, headersSize is an estimate
return (content != null ? content.size() : 0) + headersSize;
}
public boolean equals(final Object pOther) {
if (this == pOther) {
return true;
}
if (pOther instanceof CachedResponseImpl) {
// "Fast"
return equalsImpl((CachedResponseImpl) pOther);
}
else if (pOther instanceof CachedResponse) {
// Slow
return equalsGeneric((CachedResponse) pOther);
}
return false;
}
private boolean equalsImpl(final CachedResponseImpl pOther) {
return headersSize == pOther.headersSize &&
(content == null ? pOther.content == null : content.equals(pOther.content)) &&
headers.equals(pOther.headers);
}
private boolean equalsGeneric(final CachedResponse pOther) {
if (size() != pOther.size()) {
return false;
}
String[] headers = getHeaderNames();
String[] otherHeaders = pOther.getHeaderNames();
if (!Arrays.equals(headers, otherHeaders)) {
return false;
}
if (headers != null) {
for (String header : headers) {
String[] values = getHeaderValues(header);
String[] otherValues = pOther.getHeaderValues(header);
if (!Arrays.equals(values, otherValues)) {
return false;
}
}
}
return true;
}
public int hashCode() {
int result;
result = headers.hashCode();
result = 29 * result + headersSize;
result = 37 * result + (content != null ? content.hashCode() : 0);
return result;
}
}

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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* ClientCacheRequest
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ClientCacheRequest.java#1 $
*/
@Deprecated
public final class ClientCacheRequest extends AbstractCacheRequest {
private Map<String, List<String>> parameters;
private Map<String, List<String>> headers;
public ClientCacheRequest(final URI pRequestURI,final Map<String, List<String>> pParameters, final Map<String, List<String>> pHeaders) {
super(pRequestURI, "GET"); // TODO: Consider supporting more than get? At least HEAD and OPTIONS...
parameters = normalizeMap(pParameters);
headers = normalizeMap(pHeaders);
}
private <K, V> Map<K, V> normalizeMap(Map<K, V> pMap) {
return pMap == null ? Collections.<K, V>emptyMap() : Collections.unmodifiableMap(pMap);
}
public Map<String, List<String>> getParameters() {
return parameters;
}
public Map<String, List<String>> getHeaders() {
return headers;
}
public String getServerName() {
return getRequestURI().getAuthority();
}
public int getServerPort() {
return getRequestURI().getPort();
}
}

56
servlet/src/main/java/com/twelvemonkeys/servlet/cache/ClientCacheResponse.java vendored
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@@ -1,56 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* ClientCacheResponse
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ClientCacheResponse.java#2 $
*/
@Deprecated
public final class ClientCacheResponse extends AbstractCacheResponse {
// It's quite useless to cache the data either on disk or in memory, as it already is cached in the client's cache...
// It would be nice if we could bypass that...
public OutputStream getOutputStream() throws IOException {
throw new UnsupportedOperationException("Method getOutputStream not implemented"); // TODO: Implement
}
public InputStream getInputStream() {
throw new UnsupportedOperationException("Method getInputStream not implemented"); // TODO: Implement
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/cache/HTTPCache.java vendored
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45
servlet/src/main/java/com/twelvemonkeys/servlet/cache/ResponseResolver.java vendored
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@@ -1,45 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
/**
* ResponseResolver
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ResponseResolver.java#2 $
*/
@Deprecated
public interface ResponseResolver {
void resolve(CacheRequest pRequest, CacheResponse pResponse) throws IOException, CacheException;
}

278
servlet/src/main/java/com/twelvemonkeys/servlet/cache/SerlvetCacheResponseWrapper.java vendored
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@@ -1,278 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.net.HTTPUtil;
import com.twelvemonkeys.servlet.ServletResponseStreamDelegate;
/**
* CacheResponseWrapper class description.
* <p>
* Based on ideas and code found in the ONJava article
* <a href="http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html">Two
* Servlet Filters Every Web Application Should Have</a>
* by Jayson Falkner.
* </p>
*
* @author Jayson Falkner
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: SerlvetCacheResponseWrapper.java#2 $
*/
@Deprecated
class SerlvetCacheResponseWrapper extends HttpServletResponseWrapper {
private ServletResponseStreamDelegate streamDelegate;
private CacheResponse cacheResponse;
private Boolean cacheable;
private int status;
public SerlvetCacheResponseWrapper(final HttpServletResponse pServletResponse, final CacheResponse pResponse) {
super(pServletResponse);
cacheResponse = pResponse;
init();
}
/*
NOTE: This class defers determining if a response is cacheable until the
output stream is needed.
This it the reason for the somewhat complicated logic in the add/setHeader
methods below.
*/
private void init() {
cacheable = null;
status = SC_OK;
streamDelegate = new ServletResponseStreamDelegate(this) {
protected OutputStream createOutputStream() throws IOException {
// Test if this request is really cacheable, otherwise,
// just write through to underlying response, and don't cache
if (isCacheable()) {
return cacheResponse.getOutputStream();
}
else {
// TODO: We need to tell the cache about this, somehow...
writeHeaders(cacheResponse, (HttpServletResponse) getResponse());
return super.getOutputStream();
}
}
};
}
private void writeHeaders(final CacheResponse pResponse, final HttpServletResponse pServletResponse) {
Map<String,List<String>> headers = pResponse.getHeaders();
for (Map.Entry<String, List<String>> header : headers.entrySet()) {
for (int i = 0; i < header.getValue().size(); i++) {
String value = header.getValue().get(i);
if (i == 0) {
pServletResponse.setHeader(header.getKey(), value);
}
else {
pServletResponse.addHeader(header.getKey(), value);
}
}
}
}
public boolean isCacheable() {
// NOTE: Intentionally not synchronized
if (cacheable == null) {
cacheable = isCacheableImpl();
}
return cacheable;
}
private boolean isCacheableImpl() {
// TODO: This code is duped in the cache...
if (status != SC_OK) {
return false;
}
// Vary: *
List<String> values = cacheResponse.getHeaders().get(HTTPCache.HEADER_VARY);
if (values != null) {
for (String value : values) {
if ("*".equals(value)) {
return false;
}
}
}
// Cache-Control: no-cache, no-store, must-revalidate
values = cacheResponse.getHeaders().get(HTTPCache.HEADER_CACHE_CONTROL);
if (values != null) {
for (String value : values) {
if (StringUtil.contains(value, "no-cache")
|| StringUtil.contains(value, "no-store")
|| StringUtil.contains(value, "must-revalidate")) {
return false;
}
}
}
// Pragma: no-cache
values = cacheResponse.getHeaders().get(HTTPCache.HEADER_PRAGMA);
if (values != null) {
for (String value : values) {
if (StringUtil.contains(value, "no-cache")) {
return false;
}
}
}
return true;
}
public void flushBuffer() throws IOException {
streamDelegate.flushBuffer();
}
public void resetBuffer() {
// Servlet 2.3
streamDelegate.resetBuffer();
}
public void reset() {
if (Boolean.FALSE.equals(cacheable)) {
super.reset();
}
// No else, might be cacheable after all..
init();
}
public ServletOutputStream getOutputStream() throws IOException {
return streamDelegate.getOutputStream();
}
public PrintWriter getWriter() throws IOException {
return streamDelegate.getWriter();
}
public boolean containsHeader(String name) {
return cacheResponse.getHeaders().get(name) != null;
}
public void sendError(int pStatusCode, String msg) throws IOException {
// NOT cacheable
status = pStatusCode;
super.sendError(pStatusCode, msg);
}
public void sendError(int pStatusCode) throws IOException {
// NOT cacheable
status = pStatusCode;
super.sendError(pStatusCode);
}
public void setStatus(int pStatusCode, String sm) {
// NOTE: This method is deprecated
setStatus(pStatusCode);
}
public void setStatus(int pStatusCode) {
// NOT cacheable unless pStatusCode == 200 (or a FEW others?)
if (pStatusCode != SC_OK) {
status = pStatusCode;
super.setStatus(pStatusCode);
}
}
public void sendRedirect(String pLocation) throws IOException {
// NOT cacheable
status = SC_MOVED_TEMPORARILY;
super.sendRedirect(pLocation);
}
public void setDateHeader(String pName, long pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setDateHeader(pName, pValue);
}
cacheResponse.setHeader(pName, HTTPUtil.formatHTTPDate(pValue));
}
public void addDateHeader(String pName, long pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addDateHeader(pName, pValue);
}
cacheResponse.addHeader(pName, HTTPUtil.formatHTTPDate(pValue));
}
public void setHeader(String pName, String pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setHeader(pName, pValue);
}
cacheResponse.setHeader(pName, pValue);
}
public void addHeader(String pName, String pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addHeader(pName, pValue);
}
cacheResponse.addHeader(pName, pValue);
}
public void setIntHeader(String pName, int pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.setIntHeader(pName, pValue);
}
cacheResponse.setHeader(pName, String.valueOf(pValue));
}
public void addIntHeader(String pName, int pValue) {
// If in write-trough-mode, set headers directly
if (Boolean.FALSE.equals(cacheable)) {
super.addIntHeader(pName, pValue);
}
cacheResponse.addHeader(pName, String.valueOf(pValue));
}
public final void setContentType(String type) {
setHeader(HTTPCache.HEADER_CONTENT_TYPE, type);
}
}

88
servlet/src/main/java/com/twelvemonkeys/servlet/cache/ServletCacheRequest.java vendored
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@@ -1,88 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.net.URI;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* ServletCacheRequest
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ServletCacheRequest.java#1 $
*/
@Deprecated
public final class ServletCacheRequest extends AbstractCacheRequest {
private final HttpServletRequest request;
private Map<String, List<String>> headers;
private Map<String, List<String>> parameters;
protected ServletCacheRequest(final HttpServletRequest pRequest) {
super(URI.create(pRequest.getRequestURI()), pRequest.getMethod());
request = pRequest;
}
public Map<String, List<String>> getHeaders() {
if (headers == null) {
headers = ServletUtil.headersAsMap(request);
}
return headers;
}
public Map<String, List<String>> getParameters() {
if (parameters == null) {
parameters = ServletUtil.parametersAsMap(request);
}
return parameters;
}
public String getServerName() {
return request.getServerName();
}
public int getServerPort() {
return request.getServerPort();
}
HttpServletRequest getRequest() {
return request;
}
}

72
servlet/src/main/java/com/twelvemonkeys/servlet/cache/ServletResponseResolver.java vendored
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@@ -1,72 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletResponse;
/**
* ServletResponseResolver
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ServletResponseResolver.java#2 $
*/
@Deprecated
final class ServletResponseResolver implements ResponseResolver {
final private ServletCacheRequest request;
final private ServletCacheResponse response;
final private FilterChain chain;
ServletResponseResolver(final ServletCacheRequest pRequest, final ServletCacheResponse pResponse, final FilterChain pChain) {
request = pRequest;
response = pResponse;
chain = pChain;
}
public void resolve(final CacheRequest pRequest, final CacheResponse pResponse) throws IOException, CacheException {
// Need only wrap if pResponse is not response...
HttpServletResponse response = pResponse == this.response ? this.response.getResponse() : new SerlvetCacheResponseWrapper(this.response.getResponse(), pResponse);
try {
chain.doFilter(request.getRequest(), response);
}
catch (ServletException e) {
throw new CacheException(e);
}
finally {
response.flushBuffer();
}
}
}

80
servlet/src/main/java/com/twelvemonkeys/servlet/cache/WritableCachedResponse.java vendored
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@@ -1,80 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.OutputStream;
/**
* WritableCachedResponse
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: WritableCachedResponse.java#2 $
*/
@Deprecated
public interface WritableCachedResponse extends CachedResponse, CacheResponse {
/**
* Gets the {@code OutputStream} for this cached response.
* This allows a client to write to the cached response.
*
* @return the {@code OutputStream} for this response.
*/
OutputStream getOutputStream();
/**
* Sets a header key/value pair for this response.
* Any prior header value for the given header key will be overwritten.
*
* @see #addHeader(String, String)
*
* @param pName the header name
* @param pValue the header value
*/
void setHeader(String pName, String pValue);
/**
* Adds a header key/value pair for this response.
* If a value allready exists for the given key, the value will be appended.
*
* @see #setHeader(String, String)
*
* @param pName the header name
* @param pValue the header value
*/
void addHeader(String pName, String pValue);
/**
* Returns the final (immutable) {@code CachedResponse} created by this
* {@code WritableCachedResponse}.
*
* @return the {@code CachedResponse}
*/
CachedResponse getCachedResponse();
}

189
servlet/src/main/java/com/twelvemonkeys/servlet/cache/WritableCachedResponseImpl.java vendored
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@@ -1,189 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.cache;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import com.twelvemonkeys.io.FastByteArrayOutputStream;
import com.twelvemonkeys.net.HTTPUtil;
/**
* WritableCachedResponseImpl
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: WritableCachedResponseImpl.java#3 $
*/
@Deprecated
class WritableCachedResponseImpl implements WritableCachedResponse {
private final CachedResponseImpl cachedResponse;
/**
* Creates a {@code WritableCachedResponseImpl}.
*/
protected WritableCachedResponseImpl() {
cachedResponse = new CachedResponseImpl();
// Hmmm..
setHeader(HTTPCache.HEADER_CACHED_TIME, HTTPUtil.formatHTTPDate(System.currentTimeMillis()));
}
public CachedResponse getCachedResponse() {
return cachedResponse;
}
public void setHeader(String pName, String pValue) {
setHeader(pName, pValue, false);
}
public void addHeader(String pName, String pValue) {
setHeader(pName, pValue, true);
}
public Map<String, List<String>> getHeaders() {
return cachedResponse.headers;
}
/**
*
* @param pName the header name
* @param pValue the new header value
* @param pAdd {@code true} if the value should add to the list of values, not replace existing value
*/
private void setHeader(String pName, String pValue, boolean pAdd) {
// System.out.println(" ++ CachedResponse ++ " + (pAdd ? "addHeader(" : "setHeader(") + pName + ", " + pValue + ")");
// If adding, get list and append, otherwise replace list
List<String> values = pAdd ? cachedResponse.headers.get(pName) : null;
if (values == null) {
values = new ArrayList<String>();
if (pAdd) {
// Add length of pName
cachedResponse.headersSize += (pName != null ? pName.length() : 0);
}
else {
// Remove length of potential replaced old values + pName
String[] oldValues = getHeaderValues(pName);
if (oldValues != null) {
for (String oldValue : oldValues) {
cachedResponse.headersSize -= oldValue.length();
}
}
else {
cachedResponse.headersSize += (pName != null ? pName.length() : 0);
}
}
}
// Add value, if not null
if (pValue != null) {
values.add(pValue);
// Add length of pValue
cachedResponse.headersSize += pValue.length();
}
// Always add to headers
cachedResponse.headers.put(pName, values);
}
public OutputStream getOutputStream() {
// TODO: Hmm.. Smells like DCL..?
if (cachedResponse.content == null) {
createOutputStream();
}
return cachedResponse.content;
}
public void setStatus(int pStatusCode) {
cachedResponse.status = pStatusCode;
}
public int getStatus() {
return cachedResponse.getStatus();
}
private synchronized void createOutputStream() {
ByteArrayOutputStream cache = cachedResponse.content;
if (cache == null) {
String contentLengthStr = getHeaderValue("Content-Length");
if (contentLengthStr != null) {
int contentLength = Integer.parseInt(contentLengthStr);
cache = new FastByteArrayOutputStream(contentLength);
}
else {
cache = new FastByteArrayOutputStream(1024);
}
cachedResponse.content = cache;
}
}
public void writeHeadersTo(CacheResponse pResponse) {
cachedResponse.writeHeadersTo(pResponse);
}
public void writeContentsTo(OutputStream pStream) throws IOException {
cachedResponse.writeContentsTo(pStream);
}
public String[] getHeaderNames() {
return cachedResponse.getHeaderNames();
}
public String[] getHeaderValues(String pHeaderName) {
return cachedResponse.getHeaderValues(pHeaderName);
}
public String getHeaderValue(String pHeaderName) {
return cachedResponse.getHeaderValue(pHeaderName);
}
public int size() {
return cachedResponse.size();
}
public boolean equals(Object pOther) {
if (pOther instanceof WritableCachedResponse) {
// Take advantage of faster implementation
return cachedResponse.equals(((WritableCachedResponse) pOther).getCachedResponse());
}
return cachedResponse.equals(pOther);
}
public int hashCode() {
return cachedResponse.hashCode();
}
}

3
servlet/src/main/java/com/twelvemonkeys/servlet/cache/todo.txt vendored
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@@ -1,3 +0,0 @@
- Keep filter and servlet specific implementations in servlet module
- Move most of the implementation out of servlet module (HTTPCache + interfaces + abstract impl)
- Move client cache implementation classes out of servlet module, and to separate package

44
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/FileSizeExceededException.java
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@@ -1,44 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
/**
* FileSizeExceededException
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: FileSizeExceededException.java#1 $
*/
@Deprecated
public class FileSizeExceededException extends FileUploadException {
public FileSizeExceededException(Throwable pCause) {
super(pCause.getMessage(), pCause);
}
}

129
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/FileUploadFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import com.twelvemonkeys.io.FileUtil;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.GenericFilter;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* A servlet {@code Filter} for processing HTTP file upload requests, as
* specified by
* <a href="http://www.ietf.org/rfc/rfc1867.txt">Form-based File Upload in HTML (RFC1867)</a>.
*
* @see HttpFileUploadRequest
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: FileUploadFilter.java#1 $
*/
@Deprecated
public class FileUploadFilter extends GenericFilter {
private File uploadDir;
private long maxFileSize = 1024 * 1024; // 1 MByte
/**
* This method is called by the server before the filter goes into service,
* and here it determines the file upload directory.
*
* @throws ServletException
*/
public void init() throws ServletException {
// Get the name of the upload directory.
String uploadDirParam = getInitParameter("uploadDir");
if (!StringUtil.isEmpty(uploadDirParam)) {
try {
URL uploadDirURL = getServletContext().getResource(uploadDirParam);
uploadDir = FileUtil.toFile(uploadDirURL);
}
catch (MalformedURLException e) {
throw new ServletException(e.getMessage(), e);
}
}
if (uploadDir == null) {
uploadDir = ServletUtil.getTempDir(getServletContext());
}
}
/**
* Sets max filesize allowed for upload.
* <!-- used by automagic init -->
*
* @param pMaxSize
*/
public void setMaxFileSize(long pMaxSize) {
log("maxFileSize=" + pMaxSize);
maxFileSize = pMaxSize;
}
/**
* Examines the request content type, and if it is a
* {@code multipart/*} request, wraps the request with a
* {@code HttpFileUploadRequest}.
*
* @param pRequest The servlet request
* @param pResponse The servlet response
* @param pChain The filter chain
*
* @throws ServletException
* @throws IOException
*/
public void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest) pRequest;
// Get the content type from the request
String contentType = request.getContentType();
// If the content type is multipart, wrap
if (isMultipartFileUpload(contentType)) {
pRequest = new HttpFileUploadRequestWrapper(request, uploadDir, maxFileSize);
}
pChain.doFilter(pRequest, pResponse);
}
private boolean isMultipartFileUpload(String pContentType) {
return pContentType != null && pContentType.startsWith("multipart/");
}
}

66
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/HttpFileUploadRequest.java
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@@ -1,66 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
import javax.servlet.http.HttpServletRequest;
/**
* This interface represents an HTTP file upload request, as specified by
* <a href="http://www.ietf.org/rfc/rfc1867.txt">Form-based File Upload in HTML (RFC1867)</a>.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: HttpFileUploadRequest.java#1 $
*/
@Deprecated
public interface HttpFileUploadRequest extends HttpServletRequest {
/**
* Returns the value of a request parameter as an {@code UploadedFile},
* or {@code null} if the parameter does not exist.
* You should only use this method when you are sure the parameter has only
* one value.
*
* @param pName the name of the requested parameter
* @return a {@code UoploadedFile} or {@code null}
*
* @see #getUploadedFiles(String)
*/
UploadedFile getUploadedFile(String pName);
/**
* Returns an array of {@code UploadedFile} objects containing all the
* values for the given request parameter,
* or {@code null} if the parameter does not exist.
*
* @param pName the name of the requested parameter
* @return an array of {@code UoploadedFile}s or {@code null}
*/
UploadedFile[] getUploadedFiles(String pName);
}

164
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/HttpFileUploadRequestWrapper.java
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@@ -1,164 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
import java.io.File;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.FileUploadBase;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletRequestContext;
/**
* An {@code HttpFileUploadRequest} implementation, based on
* <a href="http://jakarta.apache.org/commons/fileupload/">Jakarta Commons FileUpload</a>.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: HttpFileUploadRequestWrapper.java#1 $
*/
@Deprecated
class HttpFileUploadRequestWrapper extends HttpServletRequestWrapper implements HttpFileUploadRequest {
private final Map<String, String[]> parameters = new HashMap<String, String[]>();
private final Map<String, UploadedFile[]> files = new HashMap<String, UploadedFile[]>();
public HttpFileUploadRequestWrapper(HttpServletRequest pRequest, File pUploadDir, long pMaxSize) throws ServletException {
super(pRequest);
DiskFileItemFactory factory = new DiskFileItemFactory(
128 * 1024, // 128 KByte
new File(pUploadDir.getAbsolutePath())
);
FileUpload upload = new FileUpload(factory);
upload.setSizeMax(pMaxSize);
// TODO: Defer request parsing??
try {
//noinspection unchecked
List<FileItem> items = upload.parseRequest(new ServletRequestContext(pRequest));
for (FileItem item : items) {
if (item.isFormField()) {
processFormField(item.getFieldName(), item.getString());
}
else {
processeFile(item);
}
}
}
catch (FileUploadBase.SizeLimitExceededException e) {
throw new FileSizeExceededException(e);
}
catch (org.apache.commons.fileupload.FileUploadException e) {
throw new FileUploadException(e);
}
}
private void processeFile(final FileItem pItem) {
UploadedFile value = new UploadedFileImpl(pItem);
String name = pItem.getFieldName();
UploadedFile[] values;
UploadedFile[] oldValues = files.get(name);
if (oldValues != null) {
values = new UploadedFile[oldValues.length + 1];
System.arraycopy(oldValues, 0, values, 0, oldValues.length);
values[oldValues.length] = value;
}
else {
values = new UploadedFile[] {value};
}
files.put(name, values);
// Also add to normal fields
processFormField(name, value.getName());
}
private void processFormField(String pName, String pValue) {
// Multiple parameter values are not that common, so it's
// probably faster to just use arrays...
// TODO: Research and document...
String[] values;
String[] oldValues = parameters.get(pName);
if (oldValues != null) {
values = new String[oldValues.length + 1];
System.arraycopy(oldValues, 0, values, 0, oldValues.length);
values[oldValues.length] = pValue;
}
else {
values = new String[] {pValue};
}
parameters.put(pName, values);
}
public Map getParameterMap() {
// TODO: The spec dicates immutable map, but what about the value arrays?!
// Probably just leave as-is, for performance
return Collections.unmodifiableMap(parameters);
}
public Enumeration getParameterNames() {
return Collections.enumeration(parameters.keySet());
}
public String getParameter(String pString) {
String[] values = getParameterValues(pString);
return values != null ? values[0] : null;
}
public String[] getParameterValues(String pString) {
// TODO: Optimize?
return parameters.get(pString).clone();
}
public UploadedFile getUploadedFile(String pName) {
UploadedFile[] files = getUploadedFiles(pName);
return files != null ? files[0] : null;
}
public UploadedFile[] getUploadedFiles(String pName) {
// TODO: Optimize?
return files.get(pName).clone();
}
}

89
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/UploadedFile.java
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@@ -1,89 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
/**
* This class represents an uploaded file.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: UploadedFile.java#1 $
*/
@Deprecated
public interface UploadedFile {
/**
* Returns the length of file, in bytes.
*
* @return length of file
*/
long length();
/**
* Returns the original file name (from client).
*
* @return original name
*/
String getName();
/**
* Returns the content type of the file.
*
* @return the content type
*/
String getContentType();
/**
* Returns the file data, as an {@code InputStream}.
* The file data may be read from disk, or from an in-memory source,
* depending on implementation.
*
* @return an {@code InputStream} containing the file data
* @throws IOException
* @throws RuntimeException
*/
InputStream getInputStream() throws IOException;
/**
* Writes the file data to the given {@code File}.
* Note that implementations are free to optimize this to a rename
* operation, if the file is allready cached to disk.
*
* @param pFile the {@code File} (file name) to write to.
* @throws IOException
* @throws RuntimeException
*/
void writeTo(File pFile) throws IOException;
// TODO: void delete()?
}

94
servlet/src/main/java/com/twelvemonkeys/servlet/fileupload/UploadedFileImpl.java
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@@ -1,94 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.fileupload;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
/**
* An {@code UploadedFile} implementation, based on
* <a href="http://jakarta.apache.org/commons/fileupload/">Jakarta Commons FileUpload</a>.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: UploadedFileImpl.java#1 $
*/
@Deprecated
class UploadedFileImpl implements UploadedFile {
private final FileItem item;
public UploadedFileImpl(FileItem pItem) {
if (pItem == null) {
throw new IllegalArgumentException("fileitem == null");
}
item = pItem;
}
public String getContentType() {
return item.getContentType();
}
public InputStream getInputStream() throws IOException {
return item.getInputStream();
}
public String getName() {
return item.getName();
}
public long length() {
return item.getSize();
}
public void writeTo(File pFile) throws IOException {
try {
item.write(pFile);
}
catch(RuntimeException e) {
throw e;
}
catch (IOException e) {
throw e;
}
catch (FileUploadException e) {
// We deliberately change this exception to an IOException, as it really is
throw (IOException) new IOException(e.getMessage()).initCause(e);
}
catch (Exception e) {
// Should not really happen, ever
throw new RuntimeException(e.getMessage(), e);
}
}
}

151
servlet/src/main/java/com/twelvemonkeys/servlet/gzip/GZIPFilter.java
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@@ -1,151 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.gzip;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.servlet.GenericFilter;
/**
* A filter to reduce the output size of web resources.
* <p>
* The HTTP protocol supports compression of the content to reduce network
* bandwidth. The important headers involved, are the {@code Accept-Encoding}
* request header, and the {@code Content-Encoding} response header.
* This feature can be used to further reduce the number of bytes transferred
* over the network, at the cost of some extra processing time at both endpoints.
* Most modern browsers supports compression in GZIP format, which is fairly
* efficient in cost/compression ratio.
* </p>
* <p>
* The filter tests for the presence of an {@code Accept-Encoding} header with a
* value of {@code "gzip"} (several different encoding header values are
* possible in one header). If not present, the filter simply passes the
* request/response pair through, leaving it untouched. If present, the
* {@code Content-Encoding} header is set, with the value {@code "gzip"},
* and the response is wrapped.
* The response output stream is wrapped in a
* {@link java.util.zip.GZIPOutputStream} which performs the GZIP encoding.
* For efficiency, the filter does not buffer the response, but writes through
* the gzipped output stream.
* </p>
* <p>
* <b>Configuration</b>
* <br>
* To use {@code GZIPFilter} in your web-application, you simply need to add it
* to your web descriptor ({@code web.xml}). If using a servlet container that
* supports the Servlet 2.4 spec, the new {@code dispatcher} element should be
* used, and set to {@code REQUEST/FORWARD}, to make sure the filter is invoked
* only once for requests.
* If using an older web descriptor, set the {@code init-param}
* {@code "once-per-request"} to {@code "true"} (this will have the same effect,
* but might perform slightly worse than the 2.4 version).
* Please see the examples below.
* <b>Servlet 2.4 version, filter section:</b>
* </p>
* <br>
* <pre>
* &lt;!-- GZIP Filter Configuration --&gt;
* &lt;filter&gt;
* &lt;filter-name&gt;gzip&lt;/filter-name&gt;
* &lt;filter-class&gt;com.twelvemonkeys.servlet.GZIPFilter&lt;/filter-class&gt;
* &lt;/filter&gt;
* </pre>
* <b>Filter-mapping section:</b>
* <br>
* <pre>
* &lt;!-- GZIP Filter Mapping --&gt;
* &lt;filter-mapping&gt;
* &lt;filter-name&gt;gzip&lt;/filter-name&gt;
* &lt;url-pattern&gt;*.html&lt;/url-pattern&gt;
* &lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;
* &lt;dispatcher&gt;FORWARD&lt;/dispatcher&gt;
* &lt;/filter-mapping&gt;
* &lt;filter-mapping&gt;
* &lt;filter-name&gt;gzip&lt;/filter-name&gt;
* &lt;url-pattern&gt;*.jsp&lt; /url-pattern&gt;
* &lt;dispatcher&gt;REQUEST&lt;/dispatcher&gt;
* &lt;dispatcher&gt;FORWARD&lt;/dispatcher&gt;
* &lt;/filter-mapping&gt;
* </pre>
* <p>
* Based on ideas and code found in the ONJava article
* <a href="http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html">Two
* Servlet Filters Every Web Application Should Have</a>
* by Jayson Falkner.
* </p>
*
* @author Jayson Falkner
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: GZIPFilter.java#1 $
*/
@Deprecated
public class GZIPFilter extends GenericFilter {
{
oncePerRequest = true;
}
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
// Can only filter HTTP responses
if (pRequest instanceof HttpServletRequest) {
HttpServletRequest request = (HttpServletRequest) pRequest;
HttpServletResponse response = (HttpServletResponse) pResponse;
// If GZIP is supported, use compression
String accept = request.getHeader("Accept-Encoding");
if (accept != null && accept.contains("gzip")) {
//System.out.println("GZIP supported, compressing.");
GZIPResponseWrapper wrapped = new GZIPResponseWrapper(response);
try {
pChain.doFilter(pRequest, wrapped);
}
finally {
wrapped.flushResponse();
}
return;
}
}
// Else, continue chain
pChain.doFilter(pRequest, pResponse);
}
}

152
servlet/src/main/java/com/twelvemonkeys/servlet/gzip/GZIPResponseWrapper.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.gzip;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.zip.GZIPOutputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import com.twelvemonkeys.servlet.OutputStreamAdapter;
/**
* GZIPResponseWrapper class description.
* <p>
* Based on ideas and code found in the ONJava article
* <a href="http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html">Two Servlet Filters Every Web Application Should Have</a>
* by Jayson Falkner.
* </p>
*
* @author Jayson Falkner
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: GZIPResponseWrapper.java#1 $
*/
@Deprecated
public class GZIPResponseWrapper extends HttpServletResponseWrapper {
// TODO: Remove/update ETags if needed? Read the spec (RFC 2616) on Vary/ETag for caching
protected ServletOutputStream out;
protected PrintWriter writer;
protected GZIPOutputStream gzipOut;
protected int contentLength = -1;
public GZIPResponseWrapper(final HttpServletResponse response) {
super(response);
response.addHeader("Content-Encoding", "gzip");
response.addHeader("Vary", "Accept");
}
public ServletOutputStream createOutputStream() throws IOException {
// FIX: Write directly to servlet output stream, for faster responses.
// Relies on chunked streams, or buffering in the servlet engine.
if (contentLength >= 0) {
gzipOut = new GZIPOutputStream(getResponse().getOutputStream(), contentLength);
}
else {
gzipOut = new GZIPOutputStream(getResponse().getOutputStream());
}
// Wrap in ServletOutputStream and return
return new OutputStreamAdapter(gzipOut);
}
// TODO: Move this to flushbuffer or something? Hmmm..
public void flushResponse() throws IOException {
try {
// Finish GZIP encodig
if (gzipOut != null) {
gzipOut.finish();
}
flushBuffer();
}
finally {
// Close stream
if (writer != null) {
writer.close();
}
else {
if (out != null) {
out.close();
}
}
}
}
public void flushBuffer() throws IOException {
if (writer != null) {
writer.flush();
}
else if (out != null) {
out.flush();
}
}
public ServletOutputStream getOutputStream() throws IOException {
if (writer != null) {
throw new IllegalStateException("getWriter() has already been called!");
}
if (out == null) {
out = createOutputStream();
}
return out;
}
public PrintWriter getWriter() throws IOException {
if (writer != null) {
return (writer);
}
if (out != null) {
throw new IllegalStateException("getOutputStream() has already been called!");
}
out = createOutputStream();
// TODO: This is wrong. Should use getCharacterEncoding() or "ISO-8859-1" if getCE returns null.
writer = new PrintWriter(new OutputStreamWriter(out, "UTF-8"));
return writer;
}
public void setContentLength(int pLength) {
// NOTE: Do not call super, as we will shrink the size.
contentLength = pLength;
}
}

76
servlet/src/main/java/com/twelvemonkeys/servlet/image/AWTImageFilterAdapter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import javax.servlet.ServletRequest;
import com.twelvemonkeys.image.ImageUtil;
/**
* AWTImageFilterAdapter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: AWTImageFilterAdapter.java#1 $
*
*/
@Deprecated
public class AWTImageFilterAdapter extends ImageFilter {
private java.awt.image.ImageFilter imageFilter = null;
public void setImageFilter(String pFilterClass) {
try {
Class filterClass = Class.forName(pFilterClass);
imageFilter = (java.awt.image.ImageFilter) filterClass.newInstance();
}
catch (ClassNotFoundException e) {
log("Could not load filter class.", e);
}
catch (InstantiationException e) {
log("Could not instantiate filter.", e);
}
catch (IllegalAccessException e) {
log("Could not access filter class.", e);
}
}
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
// Filter
Image img = ImageUtil.filter(pImage, imageFilter);
// Create BufferedImage & return
return ImageUtil.toBuffered(img, BufferedImage.TYPE_INT_RGB); // TODO: This is ok for JPEG only...
}
}

71
servlet/src/main/java/com/twelvemonkeys/servlet/image/BufferedImageOpAdapter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.RenderedImage;
import javax.servlet.ServletRequest;
/**
* BufferedImageOpAdapter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: BufferedImageOpAdapter.java#1 $
*
*/
@Deprecated
public class BufferedImageOpAdapter extends ImageFilter {
private BufferedImageOp filter = null;
public void setImageFilter(String pFilterClass) {
try {
Class filterClass = Class.forName(pFilterClass);
filter = (BufferedImageOp) filterClass.newInstance();
}
catch (ClassNotFoundException e) {
log("Could not instantiate filter class.", e);
}
catch (InstantiationException e) {
log("Could not instantiate filter.", e);
}
catch (IllegalAccessException e) {
log("Could not access filter class.", e);
}
}
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
// Filter & return
return filter.filter(pImage, null);
}
}

216
servlet/src/main/java/com/twelvemonkeys/servlet/image/ColorServlet.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.io.IOException;
import java.util.zip.CRC32;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import com.twelvemonkeys.servlet.GenericServlet;
/**
* Creates a minimal 1 x 1 pixel PNG image, in a color specified by the
* {@code "color"} parameter. The color is HTML-style #RRGGBB, with two
* digits hex number for red, green and blue (the hash, '#', is optional).
* <p>
* The class does only byte manipulation, there is no server-side image
* processing involving AWT ({@code Toolkit} class) of any kind.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ColorServlet.java#2 $
*/
@Deprecated
public class ColorServlet extends GenericServlet {
private final static String RGB_PARAME = "color";
// A minimal, one color indexed PNG
private final static byte[] PNG_IMG = new byte[]{
(byte) 0x89, (byte) 'P', (byte) 'N', (byte) 'G', // PNG signature (8 bytes)
0x0d, 0x0a, 0x1a, 0x0a,
0x00, 0x00, 0x00, 0x0d, // IHDR length (13)
(byte) 'I', (byte) 'H', (byte) 'D', (byte) 'R', // Image header
0x00, 0x00, 0x00, 0x01, // width
0x00, 0x00, 0x00, 0x01, // height
0x01, 0x03, 0x00, 0x00, 0x00, // bits, color type, compression, filter, interlace
0x25, (byte) 0xdb, 0x56, (byte) 0xca, // IHDR CRC
0x00, 0x00, 0x00, 0x03, // PLTE length (3)
(byte) 'P', (byte) 'L', (byte) 'T', (byte) 'E', // Palette
0x00, 0x00, (byte) 0xff, // red, green, blue (updated by this servlet)
(byte) 0x8a, (byte) 0x78, (byte) 0xd2, 0x57, // PLTE CRC
0x00, 0x00, 0x00, 0x0a, // IDAT length (10)
(byte) 'I', (byte) 'D', (byte) 'A', (byte) 'T', // Image data
0x78, (byte) 0xda, 0x63, 0x60, 0x00, 0x00, 0x00, 0x02, 0x00, 0x01,
(byte) 0xe5, 0x27, (byte) 0xde, (byte) 0xfc, // IDAT CRC
0x00, 0x00, 0x00, 0x00, // IEND length (0)
(byte) 'I', (byte) 'E', (byte) 'N', (byte) 'D', // Image end
(byte) 0xae, (byte) 0x42, (byte) 0x60, (byte) 0x82 // IEND CRC
};
private final static int PLTE_CHUNK_START = 37; // after chunk length
private final static int PLTE_CHUNK_LENGTH = 7; // chunk name & data
private final static int RED_IDX = 4;
private final static int GREEN_IDX = RED_IDX + 1;
private final static int BLUE_IDX = GREEN_IDX + 1;
private final CRC32 crc = new CRC32();
/**
* Creates a ColorDroplet.
*/
public ColorServlet() {
super();
}
/**
* Renders the 1 x 1 single color PNG to the response.
*
* @see ColorServlet class description
*
* @param pRequest the request
* @param pResponse the response
*
* @throws IOException
* @throws ServletException
*/
public void service(ServletRequest pRequest, ServletResponse pResponse) throws IOException, ServletException {
int red = 0;
int green = 0;
int blue = 0;
// Get color parameter and parse color
String rgb = pRequest.getParameter(RGB_PARAME);
if (rgb != null && rgb.length() >= 6 && rgb.length() <= 7) {
int index = 0;
// If the hash ('#') character is included, skip it.
if (rgb.length() == 7) {
index++;
}
try {
// Two digit hex for each color
String r = rgb.substring(index, index += 2);
red = Integer.parseInt(r, 0x10);
String g = rgb.substring(index, index += 2);
green = Integer.parseInt(g, 0x10);
String b = rgb.substring(index, index += 2);
blue = Integer.parseInt(b, 0x10);
}
catch (NumberFormatException nfe) {
log("Wrong color format for ColorDroplet: " + rgb + ". Must be RRGGBB.");
}
}
// Set MIME type for PNG
pResponse.setContentType("image/png");
ServletOutputStream out = pResponse.getOutputStream();
try {
// Write header (and palette chunk length)
out.write(PNG_IMG, 0, PLTE_CHUNK_START);
// Create palette chunk, excl lenght, and write
byte[] palette = makePalette(red, green, blue);
out.write(palette);
// Write image data until end
int pos = PLTE_CHUNK_START + PLTE_CHUNK_LENGTH + 4;
out.write(PNG_IMG, pos, PNG_IMG.length - pos);
}
finally {
out.flush();
}
}
/**
* Updates the CRC for a byte array. Note that the byte array must be at
* least {@code pOff + pLen + 4} bytes long, as the CRC is stored in the
* 4 last bytes.
*
* @param pBytes the bytes to create CRC for
* @param pOff the offset into the byte array to create CRC for
* @param pLen the length of the byte array to create CRC for
*/
private void updateCRC(byte[] pBytes, int pOff, int pLen) {
int value;
synchronized (crc) {
crc.reset();
crc.update(pBytes, pOff, pLen);
value = (int) crc.getValue();
}
pBytes[pOff + pLen ] = (byte) ((value >> 24) & 0xff);
pBytes[pOff + pLen + 1] = (byte) ((value >> 16) & 0xff);
pBytes[pOff + pLen + 2] = (byte) ((value >> 8) & 0xff);
pBytes[pOff + pLen + 3] = (byte) ( value & 0xff);
}
/**
* Creates a PNG palette (PLTE) chunk with one color.
* The palette chunk data is always 3 bytes in length (one byte per color
* component).
* The returned byte array is then {@code 4 + 3 + 4 = 11} bytes,
* including chunk header, data and CRC.
*
* @param pRed the red component
* @param pGreen the reen component
* @param pBlue the blue component
*
* @return the bytes for the PLTE chunk, including CRC (but not length)
*/
private byte[] makePalette(int pRed, int pGreen, int pBlue) {
byte[] palette = new byte[PLTE_CHUNK_LENGTH + 4];
System.arraycopy(PNG_IMG, PLTE_CHUNK_START, palette, 0, PLTE_CHUNK_LENGTH);
palette[RED_IDX] = (byte) pRed;
palette[GREEN_IDX] = (byte) pGreen;
palette[BLUE_IDX] = (byte) pBlue;
updateCRC(palette, 0, PLTE_CHUNK_LENGTH);
return palette;
}
}

62
servlet/src/main/java/com/twelvemonkeys/servlet/image/ComposeFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.IOException;
import javax.servlet.ServletRequest;
/**
* ComposeFilter
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ComposeFilter.java#1 $
*/
@Deprecated
public class ComposeFilter extends ImageFilter {
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) throws IOException {
// 1. Load different image, locally (using ServletContext.getResource)
// - Allow loading other filtered sources, or servlets? For example to
// apply filename or timestamps?
// - Allow applying text directly? Variables?
// 2. Apply transformations from config
// - Relative positioning
// - Relative scaling
// - Repeat (fill-pattern)?
// - Rotation?
// - Transparency?
// - Background or foreground (layers)?
// 3. Apply loaded image to original image (or vice versa?).
return pImage;
}
}

443
servlet/src/main/java/com/twelvemonkeys/servlet/image/ContentNegotiationFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.lang.StringUtil;
/**
* This filter implements server side content negotiation and transcoding for
* images.
**
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ContentNegotiationFilter.java#1 $
*/
// TODO: Add support for automatic recognition of known browsers, to avoid
// unneccessary conversion (as IE supports PNG, the latests FireFox supports
// JPEG and GIF, etc. even though they both don't explicitly list these formats
// in their Accept headers).
@Deprecated
public class ContentNegotiationFilter extends ImageFilter {
private final static String MIME_TYPE_IMAGE_PREFIX = "image/";
private static final String MIME_TYPE_IMAGE_ANY = MIME_TYPE_IMAGE_PREFIX + "*";
private static final String MIME_TYPE_ANY = "*/*";
private static final String HTTP_HEADER_ACCEPT = "Accept";
private static final String HTTP_HEADER_VARY = "Vary";
protected static final String HTTP_HEADER_USER_AGENT = "User-Agent";
private static final String FORMAT_JPEG = "image/jpeg";
private static final String FORMAT_WBMP = "image/wbmp";
private static final String FORMAT_GIF = "image/gif";
private static final String FORMAT_PNG = "image/png";
private final static String[] sKnownFormats = new String[] {
FORMAT_JPEG, FORMAT_PNG, FORMAT_GIF, FORMAT_WBMP
};
private float[] knownFormatQuality = new float[] {
1f, 1f, 0.99f, 0.5f
};
private HashMap<String, Float> formatQuality; // HashMap, as I need to clone this for each request
private final Object lock = new Object();
/*
private Pattern[] mKnownAgentPatterns;
private String[] mKnownAgentAccpets;
*/
{
// Hack: Make sure the filter don't trigger all the time
// See: super.trigger(ServletRequest)
triggerParams = new String[] {};
}
/*
public void setAcceptMappings(String pPropertiesFile) {
// NOTE: Supposed to be:
// <agent-name>=<reg-exp>
// <agent-name>.accept=<http-accept-header>
Properties mappings = new Properties();
try {
mappings.load(getServletContext().getResourceAsStream(pPropertiesFile));
List patterns = new ArrayList();
List accepts = new ArrayList();
for (Iterator iterator = mappings.keySet().iterator(); iterator.hasNext();) {
String agent = (String) iterator.next();
if (agent.endsWith(".accept")) {
continue;
}
try {
patterns.add(Pattern.compile((String) mappings.get(agent)));
// TODO: Consider preparsing ACCEPT header??
accepts.add(mappings.get(agent + ".accept"));
}
catch (PatternSyntaxException e) {
log("Could not parse User-Agent identification for " + agent, e);
}
mKnownAgentPatterns = (Pattern[]) patterns.toArray(new Pattern[patterns.size()]);
mKnownAgentAccpets = (String[]) accepts.toArray(new String[accepts.size()]);
}
}
catch (IOException e) {
log("Could not read accetp-mappings properties file: " + pPropertiesFile, e);
}
}
*/
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
// NOTE: super invokes trigger() and image specific doFilter() if needed
super.doFilterImpl(pRequest, pResponse, pChain);
if (pResponse instanceof HttpServletResponse) {
// Update the Vary HTTP header field
((HttpServletResponse) pResponse).addHeader(HTTP_HEADER_VARY, HTTP_HEADER_ACCEPT);
//((HttpServletResponse) pResponse).addHeader(HTTP_HEADER_VARY, HTTP_HEADER_USER_AGENT);
}
}
/**
* Makes sure the filter triggers for unknown file formats.
*
* @param pRequest the request
* @return {@code true} if the filter should execute, {@code false}
* otherwise
*/
protected boolean trigger(ServletRequest pRequest) {
boolean trigger = false;
if (pRequest instanceof HttpServletRequest) {
HttpServletRequest request = (HttpServletRequest) pRequest;
String accept = getAcceptedFormats(request);
String originalFormat = getServletContext().getMimeType(request.getRequestURI());
//System.out.println("Accept: " + accept);
//System.out.println("Original format: " + originalFormat);
// Only override original format if it is not accpeted by the client
// Note: Only explicit matches are okay, */* or image/* is not.
if (!StringUtil.contains(accept, originalFormat)) {
trigger = true;
}
}
// Call super, to allow content negotiation even though format is supported
return trigger || super.trigger(pRequest);
}
private String getAcceptedFormats(HttpServletRequest pRequest) {
return pRequest.getHeader(HTTP_HEADER_ACCEPT);
}
/*
private String getAcceptedFormats(HttpServletRequest pRequest) {
String accept = pRequest.getHeader(HTTP_HEADER_ACCEPT);
// Check if User-Agent is in list of known agents
if (mKnownAgentPatterns != null) {
String agent = pRequest.getHeader(HTTP_HEADER_USER_AGENT);
for (int i = 0; i < mKnownAgentPatterns.length; i++) {
Pattern pattern = mKnownAgentPatterns[i];
if (pattern.matcher(agent).matches()) {
// Merge known with real accpet, in case plugins add extra capabilities
accept = mergeAccept(mKnownAgentAccpets[i], accept);
System.out.println("--> User-Agent: " + agent + " accepts: " + accept);
return accept;
}
}
}
System.out.println("No agent match, defaulting to Accept header: " + accept);
return accept;
}
private String mergeAccept(String pKnown, String pAccept) {
// TODO: Make sure there are no duplicates...
return pKnown + ", " + pAccept;
}
*/
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) throws IOException {
if (pRequest instanceof HttpServletRequest) {
HttpServletRequest request = (HttpServletRequest) pRequest;
Map<String, Float> formatQuality = getFormatQualityMapping();
// TODO: Consider adding original format, and use as fallback in worst case?
// TODO: Original format should have some boost, to avoid unneccesary convertsion?
// Update source quality settings from image properties
adjustQualityFromImage(formatQuality, pImage);
//System.out.println("Source quality mapping: " + formatQuality);
adjustQualityFromAccept(formatQuality, request);
//System.out.println("Final media scores: " + formatQuality);
// Find the formats with the highest quality factor, and use the first (predictable)
String acceptable = findBestFormat(formatQuality);
//System.out.println("Acceptable: " + acceptable);
// Send HTTP 406 Not Acceptable
if (acceptable == null) {
if (pResponse instanceof HttpServletResponse) {
((HttpServletResponse) pResponse).sendError(HttpURLConnection.HTTP_NOT_ACCEPTABLE);
}
return null;
}
else {
// TODO: Only if the format was changed!
// Let other filters/caches/proxies know we changed the image
}
// Set format
pResponse.setOutputContentType(acceptable);
//System.out.println("Set format: " + acceptable);
}
return pImage;
}
private Map<String, Float> getFormatQualityMapping() {
synchronized(lock) {
if (formatQuality == null) {
formatQuality = new HashMap<String, Float>();
// Use ImageIO to find formats we can actually write
String[] formats = ImageIO.getWriterMIMETypes();
// All known formats qs are initially 1.0
// Others should be 0.1 or something like that...
for (String format : formats) {
formatQuality.put(format, getKnownFormatQuality(format));
}
}
}
//noinspection unchecked
return (Map<String, Float>) formatQuality.clone();
}
/**
* Finds the best available format.
*
* @param pFormatQuality the format to quality mapping
* @return the mime type of the best available format
*/
private static String findBestFormat(Map<String, Float> pFormatQuality) {
String acceptable = null;
float acceptQuality = 0.0f;
for (Map.Entry<String, Float> entry : pFormatQuality.entrySet()) {
float qValue = entry.getValue();
if (qValue > acceptQuality) {
acceptQuality = qValue;
acceptable = entry.getKey();
}
}
//System.out.println("Accepted format: " + acceptable);
//System.out.println("Accepted quality: " + acceptQuality);
return acceptable;
}
/**
* Adjust quality from HTTP Accept header
*
* @param pFormatQuality the format to quality mapping
* @param pRequest the request
*/
private void adjustQualityFromAccept(Map<String, Float> pFormatQuality, HttpServletRequest pRequest) {
// Multiply all q factors with qs factors
// No q=.. should be interpreted as q=1.0
// Apache does some extras; if both explicit types and wildcards
// (without qaulity factor) are present, */* is interpreted as
// */*;q=0.01 and image/* is interpreted as image/*;q=0.02
// See: http://httpd.apache.org/docs-2.0/content-negotiation.html
String accept = getAcceptedFormats(pRequest);
//System.out.println("Accept: " + accept);
float anyImageFactor = getQualityFactor(accept, MIME_TYPE_IMAGE_ANY);
anyImageFactor = (anyImageFactor == 1) ? 0.02f : anyImageFactor;
float anyFactor = getQualityFactor(accept, MIME_TYPE_ANY);
anyFactor = (anyFactor == 1) ? 0.01f : anyFactor;
for (String format : pFormatQuality.keySet()) {
//System.out.println("Trying format: " + format);
String formatMIME = MIME_TYPE_IMAGE_PREFIX + format;
float qFactor = getQualityFactor(accept, formatMIME);
qFactor = (qFactor == 0f) ? Math.max(anyFactor, anyImageFactor) : qFactor;
adjustQuality(pFormatQuality, format, qFactor);
}
}
/**
*
* @param pAccept the accpet header value
* @param pContentType the content type to get the quality factor for
* @return the q factor of the given format, according to the accept header
*/
private static float getQualityFactor(String pAccept, String pContentType) {
float qFactor = 0;
int foundIndex = pAccept.indexOf(pContentType);
if (foundIndex >= 0) {
int startQIndex = foundIndex + pContentType.length();
if (startQIndex < pAccept.length() && pAccept.charAt(startQIndex) == ';') {
while (startQIndex < pAccept.length() && pAccept.charAt(startQIndex++) == ' ') {
// Skip over whitespace
}
if (pAccept.charAt(startQIndex++) == 'q' && pAccept.charAt(startQIndex++) == '=') {
int endQIndex = pAccept.indexOf(',', startQIndex);
if (endQIndex < 0) {
endQIndex = pAccept.length();
}
try {
qFactor = Float.parseFloat(pAccept.substring(startQIndex, endQIndex));
//System.out.println("Found qFactor " + qFactor);
}
catch (NumberFormatException e) {
// TODO: Determine what to do here.. Maybe use a very low value?
// Ahem.. The specs don't say anything about how to interpret a wrong q factor..
//System.out.println("Unparseable q setting; " + e.getMessage());
}
}
// TODO: Determine what to do here.. Maybe use a very low value?
// Unparseable q value, use 0
}
else {
// Else, assume quality is 1.0
qFactor = 1;
}
}
return qFactor;
}
/**
* Adjusts source quality settings from image properties.
*
* @param pFormatQuality the format to quality mapping
* @param pImage the image
*/
private static void adjustQualityFromImage(Map<String, Float> pFormatQuality, BufferedImage pImage) {
// NOTE: The values are all made-up. May need tuning.
// If pImage.getColorModel() instanceof IndexColorModel
// JPEG qs*=0.6
// If NOT binary or 2 color index
// WBMP qs*=0.5
// Else
// GIF qs*=0.02
// PNG qs*=0.9 // JPEG is smaller/faster
if (pImage.getColorModel() instanceof IndexColorModel) {
adjustQuality(pFormatQuality, FORMAT_JPEG, 0.6f);
if (pImage.getType() != BufferedImage.TYPE_BYTE_BINARY || ((IndexColorModel) pImage.getColorModel()).getMapSize() != 2) {
adjustQuality(pFormatQuality, FORMAT_WBMP, 0.5f);
}
}
else {
adjustQuality(pFormatQuality, FORMAT_GIF, 0.01f);
adjustQuality(pFormatQuality, FORMAT_PNG, 0.99f); // JPEG is smaller/faster
}
// If pImage.getColorModel().hasTransparentPixels()
// JPEG qs*=0.05
// WBMP qs*=0.05
// If NOT transparency == BITMASK
// GIF qs*=0.8
if (ImageUtil.hasTransparentPixels(pImage, true)) {
adjustQuality(pFormatQuality, FORMAT_JPEG, 0.009f);
adjustQuality(pFormatQuality, FORMAT_WBMP, 0.009f);
if (pImage.getColorModel().getTransparency() != Transparency.BITMASK) {
adjustQuality(pFormatQuality, FORMAT_GIF, 0.8f);
}
}
}
/**
* Updates the quality in the map.
*
* @param pFormatQuality Map<String,Float>
* @param pFormat the format
* @param pFactor the quality factor
*/
private static void adjustQuality(Map<String, Float> pFormatQuality, String pFormat, float pFactor) {
Float oldValue = pFormatQuality.get(pFormat);
if (oldValue != null) {
pFormatQuality.put(pFormat, oldValue * pFactor);
//System.out.println("New vallue after multiplying with " + pFactor + " is " + pFormatQuality.get(pFormat));
}
}
/**
* Gets the initial quality if this is a known format, otherwise 0.1
*
* @param pFormat the format name
* @return the q factor of the given format
*/
private float getKnownFormatQuality(String pFormat) {
for (int i = 0; i < sKnownFormats.length; i++) {
if (pFormat.equals(sKnownFormats[i])) {
return knownFormatQuality[i];
}
}
return 0.1f;
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/image/CropFilter.java
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@@ -1,237 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import javax.servlet.ServletRequest;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* This Servlet is able to render a cropped part of an image.
*
* <HR>
*
* <A name="parameters"></A><STRONG>Parameters:</STRONG><BR>
* <DL>
* <DT>{@code cropX}</DT>
* <DD>integer, the new left edge of the image.
* <DT>{@code cropY}</DT>
* <DD>integer, the new top of the image.
* <DT>{@code cropWidth}</DT>
* <DD>integer, the new width of the image.
* <DT>{@code cropHeight}</DT>
* <DD>integer, the new height of the image.
* <DT>{@code cropUniform}</DT>
* <DD>boolean, wether or not uniform scalnig should be used. Default is
* {@code true}.
* <DT>{@code cropUnits}</DT>
* <DD>string, one of {@code PIXELS}, {@code PERCENT}.
* {@code PIXELS} is default.
*
* <!-- inherited from ScaleImage below: -->
*
* <DT>{@code image}</DT>
* <DD>string, the URL of the image to scale.
*
* <DT>{@code scaleX}</DT>
* <DD>integer, the new width of the image.
*
* <DT>{@code scaleY}</DT>
* <DD>integer, the new height of the image.
*
* <DT>{@code scaleUniform}</DT>
* <DD>boolean, wether or not uniform scalnig should be used. Default is
* {@code true}.
*
* <DT>{@code scaleUnits}</DT>
* <DD>string, one of {@code PIXELS}, {@code PERCENT}.
* {@code PIXELS} is default.
*
* <DT>{@code scaleQuality}</DT>
* <DD>string, one of {@code SCALE_SMOOTH}, {@code SCALE_FAST},
* {@code SCALE_REPLICATE}, {@code SCALE_AREA_AVERAGING}.
* {@code SCALE_DEFAULT} is default.
*
* </DL>
* <p>
* Examples:
* <br>
* &lt;IMG src="/crop/test.jpg?image=http://www.iconmedialab.com/images/random/home_image_12.jpg&amp;cropWidth=500&amp;cropUniform=true"&gt;
* <br>
* &lt;IMG src="/crop/test.png?cache=false&amp;image=http://www.iconmedialab.com/images/random/home_image_12.jpg&amp;cropWidth=50&amp;cropUnits=PERCENT"&gt;
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: CropFilter.java#1 $
*/
@Deprecated
public class CropFilter extends ScaleFilter {
/** {@code cropX}*/
protected final static String PARAM_CROP_X = "cropX";
/** {@code cropY}*/
protected final static String PARAM_CROP_Y = "cropY";
/** {@code cropWidth}*/
protected final static String PARAM_CROP_WIDTH = "cropWidth";
/** {@code cropHeight}*/
protected final static String PARAM_CROP_HEIGHT = "cropHeight";
/** {@code cropUniform}*/
protected final static String PARAM_CROP_UNIFORM = "cropUniform";
/** {@code cropUnits}*/
protected final static String PARAM_CROP_UNITS = "cropUnits";
/**
* Reads the image from the requested URL, scales it, crops it, and returns
* it in the
* Servlet stream. See above for details on parameters.
*/
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
// Get crop coordinates
int x = ServletUtil.getIntParameter(pRequest, PARAM_CROP_X, -1);
int y = ServletUtil.getIntParameter(pRequest, PARAM_CROP_Y, -1);
int width = ServletUtil.getIntParameter(pRequest, PARAM_CROP_WIDTH, -1);
int height = ServletUtil.getIntParameter(pRequest, PARAM_CROP_HEIGHT, -1);
boolean uniform =
ServletUtil.getBooleanParameter(pRequest, PARAM_CROP_UNIFORM, false);
int units = getUnits(ServletUtil.getParameter(pRequest, PARAM_CROP_UNITS, null));
// Get crop bounds
Rectangle bounds =
getBounds(x, y, width, height, units, uniform, pImage);
// Return cropped version
return pImage.getSubimage((int) bounds.getX(), (int) bounds.getY(),
(int) bounds.getWidth(),
(int) bounds.getHeight());
//return scaled.getSubimage(x, y, width, height);
}
protected Rectangle getBounds(int pX, int pY, int pWidth, int pHeight,
int pUnits, boolean pUniform,
BufferedImage pImg) {
// Algoritm:
// Try to get x and y (default 0,0).
// Try to get width and height (default width-x, height-y)
//
// If percent, get ratio
//
// If uniform
//
int oldWidth = pImg.getWidth();
int oldHeight = pImg.getHeight();
float ratio;
if (pUnits == UNITS_PERCENT) {
if (pWidth >= 0 && pHeight >= 0) {
// Non-uniform
pWidth = (int) ((float) oldWidth * (float) pWidth / 100f);
pHeight = (int) ((float) oldHeight * (float) pHeight / 100f);
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / 100f;
pWidth = (int) ((float) oldWidth * ratio);
pHeight = (int) ((float) oldHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / 100f;
pWidth = (int) ((float) oldWidth * ratio);
pHeight = (int) ((float) oldHeight * ratio);
}
// Else: No crop
}
//else if (UNITS_PIXELS.equalsIgnoreCase(pUnits)) {
else if (pUnits == UNITS_PIXELS) {
// Uniform
if (pUniform) {
if (pWidth >= 0 && pHeight >= 0) {
// Compute both ratios
ratio = (float) pWidth / (float) oldWidth;
float heightRatio = (float) pHeight / (float) oldHeight;
// Find the largest ratio, and use that for both
if (heightRatio < ratio) {
ratio = heightRatio;
pWidth = (int) ((float) oldWidth * ratio);
}
else {
pHeight = (int) ((float) oldHeight * ratio);
}
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / (float) oldWidth;
pHeight = (int) ((float) oldHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / (float) oldHeight;
pWidth = (int) ((float) oldWidth * ratio);
}
// Else: No crop
}
}
// Else: No crop
// Not specified, or outside bounds: Use original dimensions
if (pWidth < 0 || (pX < 0 && pWidth > oldWidth)
|| (pX >= 0 && (pX + pWidth) > oldWidth)) {
pWidth = (pX >= 0 ? oldWidth - pX : oldWidth);
}
if (pHeight < 0 || (pY < 0 && pHeight > oldHeight)
|| (pY >= 0 && (pY + pHeight) > oldHeight)) {
pHeight = (pY >= 0 ? oldHeight - pY : oldHeight);
}
// Center
if (pX < 0) {
pX = (pImg.getWidth() - pWidth) / 2;
}
if (pY < 0) {
pY = (pImg.getHeight() - pHeight) / 2;
}
//System.out.println("x: " + pX + " y: " + pY
// + " w: " + pWidth + " h " + pHeight);
return new Rectangle(pX, pY, pWidth, pHeight);
}
}

225
servlet/src/main/java/com/twelvemonkeys/servlet/image/ImageFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.GenericFilter;
/**
* Abstract base class for image filters. Automatically decoding and encoding of
* the image is handled in the {@code doFilterImpl} method.
*
* @see #doFilter(java.awt.image.BufferedImage,javax.servlet.ServletRequest,ImageServletResponse)
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ImageFilter.java#2 $
*
*/
@Deprecated
public abstract class ImageFilter extends GenericFilter {
// TODO: Take the design back to the drawing board (see ImageServletResponseImpl)
// - Allow multiple filters to set size attribute
// - Allow a later filter to reset, to get pass-through given certain criteria...
// - Or better yet, allow a filter to decide if it wants to decode, based on image metadata on the original image (ie: width/height)
protected String[] triggerParams = null;
/**
* The {@code doFilterImpl} method is called once, or each time a
* request/response pair is passed through the chain, depending on the
* {@link #oncePerRequest} member variable.
*
* @see #oncePerRequest
* @see com.twelvemonkeys.servlet.GenericFilter#doFilterImpl(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) doFilter
* @see Filter#doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse, javax.servlet.FilterChain) Filter.doFilter
*
* @param pRequest the servlet request
* @param pResponse the servlet response
* @param pChain the filter chain
*
* @throws IOException
* @throws ServletException
*/
protected void doFilterImpl(final ServletRequest pRequest, final ServletResponse pResponse, final FilterChain pChain)
throws IOException, ServletException {
//System.out.println("Starting filtering...");
// Test for trigger params
if (!trigger(pRequest)) {
//System.out.println("Passing request on to next in chain (skipping " + getFilterName() + ")...");
// Pass the request on
pChain.doFilter(pRequest, pResponse);
}
else {
// If already wrapped, the image will be encoded later in the chain
// Or, if this is first filter in chain, we must encode when done
boolean encode = !(pResponse instanceof ImageServletResponse);
// For images, we do post filtering only and need to wrap the response
ImageServletResponse imageResponse = createImageServletResponse(pRequest, pResponse);
//System.out.println("Passing request on to next in chain...");
// Pass the request on
pChain.doFilter(pRequest, imageResponse);
//System.out.println("Post filtering...");
// Get image
//System.out.println("Getting image from ImageServletResponse...");
// Get the image from the wrapped response
RenderedImage image = imageResponse.getImage();
//System.out.println("Got image: " + image);
// Note: Image will be null if this is a HEAD request, the
// If-Modified-Since header is present, or similar.
if (image != null) {
// Do the image filtering
//System.out.println("Filtering image (" + getFilterName() + ")...");
image = doFilter(ImageUtil.toBuffered(image), pRequest, imageResponse);
//System.out.println("Done filtering.");
//System.out.println("Making image available...");
// Make image available to other filters (avoid unnecessary serializing/deserializing)
imageResponse.setImage(image);
//System.out.println("Done.");
}
if (encode) {
//System.out.println("Encoding image...");
// Encode image to original response
if (image != null) {
// TODO: Be smarter than this...
// TODO: Make sure ETag is same, if image content is the same...
// Use ETag of original response (or derived from)
// Use last modified of original response? Or keep original resource's, don't set at all?
// TODO: Why weak ETag?
String etag = "W/\"" + Integer.toHexString(hashCode()) + "-" + Integer.toHexString(image.hashCode()) + "\"";
// TODO: This breaks for wrapped instances, need to either unwrap or test for HttpSR...
((HttpServletResponse) pResponse).setHeader("ETag", etag);
((HttpServletResponse) pResponse).setDateHeader("Last-Modified", (System.currentTimeMillis() / 1000) * 1000);
}
imageResponse.flush();
//System.out.println("Done encoding.");
}
}
//System.out.println("Filtering done.");
}
/**
* Creates the image servlet response for this response.
*
* @param pResponse the original response
* @param pRequest the original request
* @return the new response, or {@code pResponse} if the response is already wrapped
*
* @see com.twelvemonkeys.servlet.image.ImageServletResponseImpl
*/
private ImageServletResponse createImageServletResponse(final ServletRequest pRequest, final ServletResponse pResponse) {
if (pResponse instanceof ImageServletResponseImpl) {
ImageServletResponseImpl response = (ImageServletResponseImpl) pResponse;
// response.setRequest(pRequest);
return response;
}
return new ImageServletResponseImpl(pRequest, pResponse, getServletContext());
}
/**
* Tests if the filter should do image filtering/processing.
* <p>
* This default implementation uses {@link #triggerParams} to test if:
* </p>
* <dl>
* <dt>{@code mTriggerParams == null}</dt>
* <dd>{@code return true}</dd>
* <dt>{@code mTriggerParams != null}, loop through parameters, and test
* if {@code pRequest} contains the parameter. If match</dt>
* <dd>{@code return true}</dd>
* <dt>Otherwise</dt>
* <dd>{@code return false}</dd>
* </dl>
*
* @param pRequest the servlet request
* @return {@code true} if the filter should do image filtering
*/
protected boolean trigger(final ServletRequest pRequest) {
// If triggerParams not set, assume always trigger
if (triggerParams == null) {
return true;
}
// Trigger only for certain request parameters
for (String triggerParam : triggerParams) {
if (pRequest.getParameter(triggerParam) != null) {
return true;
}
}
// Didn't trigger
return false;
}
/**
* Sets the trigger parameters.
* The parameter is supposed to be a comma-separated string of parameter
* names.
*
* @param pTriggerParams a comma-separated string of parameter names.
*/
// TODO: Make it an @InitParam, and make sure we may set String[]/Collection<String> as parameter?
public void setTriggerParams(final String pTriggerParams) {
triggerParams = StringUtil.toStringArray(pTriggerParams);
}
/**
* Filters the image for this request.
*
* @param pImage the image to filter
* @param pRequest the servlet request
* @param pResponse the servlet response
*
* @return the filtered image
* @throws java.io.IOException if an I/O error occurs during filtering
*/
protected abstract RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) throws IOException;
}

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servlet/src/main/java/com/twelvemonkeys/servlet/image/ImageServletException.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import javax.servlet.ServletException;
/**
* This exception is a subclass of ServletException, and acts just as a marker
* for exceptions thrown by the ImageServlet API.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
*
* @version $Id: ImageServletException.java#2 $
*/
@Deprecated
public class ImageServletException extends ServletException {
public ImageServletException(String pMessage) {
super(pMessage);
}
public ImageServletException(Throwable pThrowable) {
super(pThrowable);
}
public ImageServletException(String pMessage, Throwable pThrowable) {
super(pMessage, pThrowable);
}
}

211
servlet/src/main/java/com/twelvemonkeys/servlet/image/ImageServletResponse.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.IOException;
import javax.servlet.ServletResponse;
/**
* ImageServletResponse.
* <p>
* The request attributes regarding image size and source region (AOI) are used
* in the decoding process, and must be set before the first invocation of
* {@link #getImage()} to have any effect.
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ImageServletResponse.java#4 $
*/
@Deprecated
public interface ImageServletResponse extends ServletResponse {
/**
* Request attribute of type {@link java.awt.Dimension} controlling image
* size.
* If either {@code width} or {@code height} is negative, the size is
* computed, using uniform scaling.
* Else, if {@code SIZE_UNIFORM} is {@code true}, the size will be
* computed to the largest possible area (with correct aspect ratio)
* fitting inside the target area.
* Otherwise, the image is scaled to the given size, with no regard to
* aspect ratio.
* <p>
* Defaults to {@code null} (original image size).
* </p>
*/
String ATTRIB_SIZE = "com.twelvemonkeys.servlet.image.ImageServletResponse.SIZE";
/**
* Request attribute of type {@link Boolean} controlling image sizing.
* <p>
* Defaults to {@code Boolean.TRUE}.
* </p>
*/
String ATTRIB_SIZE_UNIFORM = "com.twelvemonkeys.servlet.image.ImageServletResponse.SIZE_UNIFORM";
/**
* Request attribute of type {@link Boolean} controlling image sizing.
* <p>
* Defaults to {@code Boolean.FALSE}.
* </p>
*/
String ATTRIB_SIZE_PERCENT = "com.twelvemonkeys.servlet.image.ImageServletResponse.SIZE_PERCENT";
/**
* Request attribute of type {@link java.awt.Rectangle} controlling image
* source region (area of interest).
* <p>
* Defaults to {@code null} (the entire image).
* </p>
*/
String ATTRIB_AOI = "com.twelvemonkeys.servlet.image.ImageServletResponse.AOI";
/**
* Request attribute of type {@link Boolean} controlling image AOI.
* <p>
* Defaults to {@code Boolean.FALSE}.
* </p>
*/
String ATTRIB_AOI_UNIFORM = "com.twelvemonkeys.servlet.image.ImageServletResponse.AOI_UNIFORM";
/**
* Request attribute of type {@link Boolean} controlling image AOI.
* <p>
* Defaults to {@code Boolean.FALSE}.
* </p>
*/
String ATTRIB_AOI_PERCENT = "com.twelvemonkeys.servlet.image.ImageServletResponse.AOI_PERCENT";
/**
* Request attribute of type {@link java.awt.Color} controlling background
* color for any transparent/translucent areas of the image.
* <p>
* Defaults to {@code null} (keeps the transparent areas transparent).
* </p>
*/
String ATTRIB_BG_COLOR = "com.twelvemonkeys.servlet.image.ImageServletResponse.BG_COLOR";
/**
* Request attribute of type {@link Float} controlling image output compression/quality.
* Used for formats that accepts compression or quality settings,
* like JPEG (quality), PNG (compression only) etc.
* <p>
* Defaults to {@code 0.8f} for JPEG.
* </p>
*/
String ATTRIB_OUTPUT_QUALITY = "com.twelvemonkeys.servlet.image.ImageServletResponse.OUTPUT_QUALITY";
/**
* Request attribute of type {@link Double} controlling image read
* subsampling factor. Controls the maximum sample pixels in each direction,
* that is read per pixel in the output image, if the result will be
* downscaled.
* Larger values will result in better quality, at the expense of higher
* memory consumption and CPU usage.
* However, using values above {@code 3.0} will usually not improve image
* quality.
* Legal values are in the range {@code [1.0 .. positive infinity&gt;}.
* <p>
* Defaults to {@code 2.0}.
* </p>
*/
String ATTRIB_READ_SUBSAMPLING_FACTOR = "com.twelvemonkeys.servlet.image.ImageServletResponse.READ_SUBSAMPLING_FACTOR";
/**
* Request attribute of type {@link Integer} controlling image resample
* algorithm.
* Legal values are {@link java.awt.Image#SCALE_DEFAULT SCALE_DEFAULT},
* {@link java.awt.Image#SCALE_FAST SCALE_FAST} or
* {@link java.awt.Image#SCALE_SMOOTH SCALE_SMOOTH}.
* <p>
* Note: When using a value of {@code SCALE_FAST}, you should also use a
* subsampling factor of {@code 1.0}, for fast read/scale.
* Otherwise, use a subsampling factor of {@code 2.0} for better quality.
* </p>
* <p>
* Defaults to {@code SCALE_DEFAULT}.
* </p>
*/
String ATTRIB_IMAGE_RESAMPLE_ALGORITHM = "com.twelvemonkeys.servlet.image.ImageServletResponse.IMAGE_RESAMPLE_ALGORITHM";
/**
* Gets the image format for this response, such as "image/gif" or "image/jpeg".
* If not set, the default format is that of the original image.
*
* @return the image format for this response.
* @see #setOutputContentType(String)
*/
String getOutputContentType();
/**
* Sets the image format for this response, such as "image/gif" or "image/jpeg".
* <p>
* As an example, a custom filter could do content negotiation based on the
* request header fields and write the image back in an appropriate format.
* </p>
* <p>
* If not set, the default format is that of the original image.
* </p>
*
* @param pImageFormat the image format for this response.
*/
void setOutputContentType(String pImageFormat);
//TODO: ?? void setCompressionQuality(float pQualityFactor);
//TODO: ?? float getCompressionQuality();
/**
* Writes the image to the original {@code ServletOutputStream}.
* If no format is {@linkplain #setOutputContentType(String) set} in this response,
* the image is encoded in the same format as the original image.
*
* @throws java.io.IOException if an I/O exception occurs during writing
*/
void flush() throws IOException;
/**
* Gets the decoded image from the response.
*
* @return a {@code BufferedImage} or {@code null} if the image could not be read.
*
* @throws java.io.IOException if an I/O exception occurs during reading
*/
BufferedImage getImage() throws IOException;
/**
* Sets the image for this response.
*
* @param pImage the new response image.
*/
void setImage(RenderedImage pImage);
}

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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.IndexColorModel;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.Iterator;
import javax.imageio.IIOException;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.stream.ImageInputStream;
import javax.imageio.stream.ImageOutputStream;
import javax.servlet.ServletContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletResponseWrapper;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.io.FastByteArrayOutputStream;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.ServletResponseStreamDelegate;
import com.twelvemonkeys.servlet.ServletUtil;
import com.twelvemonkeys.servlet.image.aoi.AreaOfInterest;
import com.twelvemonkeys.servlet.image.aoi.AreaOfInterestFactory;
/**
* This {@link ImageServletResponse} implementation can be used with image
* requests, to have the image immediately decoded to a {@code BufferedImage}.
* The image may be optionally subsampled, scaled and/or cropped.
* The response also automatically handles writing the image back to the underlying response stream
* in the preferred format, when the response is flushed.
* <p>
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ImageServletResponseImpl.java#10 $
*/
// TODO: Refactor out HTTP specifics (if possible).
// TODO: Is it a good ide to throw IIOException?
// TODO: This implementation has a problem if two filters does scaling, as the second will overwrite the SIZE attribute
// TODO: Allow different scaling algorithm based on input image (use case: IndexColorModel does not scale well using default, smooth may be slow for large images)
// TODO: Support pluggable pre- and post-processing steps
@Deprecated
class ImageServletResponseImpl extends HttpServletResponseWrapper implements ImageServletResponse {
private ServletRequest originalRequest;
private final ServletContext context;
private final ServletResponseStreamDelegate streamDelegate;
private FastByteArrayOutputStream bufferedOut;
private RenderedImage image;
private String outputContentType;
private String originalContentType;
private int originalContentLength = -1;
/**
* Creates an {@code ImageServletResponseImpl}.
*
* @param pRequest the request
* @param pResponse the response
* @param pContext the servlet context
*/
public ImageServletResponseImpl(final HttpServletRequest pRequest, final HttpServletResponse pResponse, final ServletContext pContext) {
super(pResponse);
originalRequest = pRequest;
streamDelegate = new ServletResponseStreamDelegate(pResponse) {
@Override
protected OutputStream createOutputStream() throws IOException {
if (originalContentLength >= 0) {
bufferedOut = new FastByteArrayOutputStream(originalContentLength);
}
else {
bufferedOut = new FastByteArrayOutputStream(0);
}
return bufferedOut;
}
};
context = pContext;
}
/**
* Creates an {@code ImageServletResponseImpl}.
*
* @param pRequest the request
* @param pResponse the response
* @param pContext the servlet context
*
* @throws ClassCastException if {@code pRequest} is not an {@link javax.servlet.http.HttpServletRequest} or
* {@code pResponse} is not an {@link javax.servlet.http.HttpServletResponse}.
*/
public ImageServletResponseImpl(final ServletRequest pRequest, final ServletResponse pResponse, final ServletContext pContext) {
// Cheat for now...
this((HttpServletRequest) pRequest, (HttpServletResponse) pResponse, pContext);
}
/**
* Called by the container, do not invoke.
*
* @param pMimeType the content (MIME) type
*/
public void setContentType(final String pMimeType) {
// Throw exception is already set
if (originalContentType != null) {
throw new IllegalStateException("ContentType already set.");
}
originalContentType = pMimeType;
}
/**
* Called by the container. Do not invoke.
*
* @return the response's {@code OutputStream}
* @throws IOException
*/
public ServletOutputStream getOutputStream() throws IOException {
return streamDelegate.getOutputStream();
}
/**
* Called by the container. Do not invoke.
*
* @return the response's {@code PrintWriter}
* @throws IOException
*/
public PrintWriter getWriter() throws IOException {
return streamDelegate.getWriter();
}
/**
* Called by the container. Do not invoke.
*
* @param pLength the content length
*/
public void setContentLength(final int pLength) {
if (originalContentLength != -1) {
throw new IllegalStateException("ContentLength already set.");
}
originalContentLength = pLength;
}
@Override
public void setHeader(String name, String value) {
// NOTE: Clients could also specify content type/content length using the setHeader method, special handling
if (name != null && name.equals("Content-Length")) {
setContentLength(Integer.valueOf(value)); // Value might be too large, but we don't support that anyway
}
else if (name != null && name.equals("Content-Type")) {
setContentType(value);
}
else {
super.setHeader(name, value);
}
}
/**
* Writes the image to the original {@code ServletOutputStream}.
* If no format is set in this response, the image is encoded in the same
* format as the original image.
*
* @throws IOException if an I/O exception occurs during writing
*/
public void flush() throws IOException {
String outputType = getOutputContentType();
// Force transcoding, if no other filtering is done
if (outputType != null && !outputType.equals(originalContentType)) {
getImage();
}
if (image != null) {
Iterator writers = ImageIO.getImageWritersByMIMEType(outputType);
if (writers.hasNext()) {
super.setContentType(outputType);
OutputStream out = super.getOutputStream();
try {
ImageWriter writer = (ImageWriter) writers.next();
try {
ImageWriteParam param = writer.getDefaultWriteParam();
///////////////////
// POST-PROCESS
// For known formats that don't support transparency, convert to opaque
if (isNonAlphaFormat(outputType) && image.getColorModel().getTransparency() != Transparency.OPAQUE) {
image = ImageUtil.toBuffered(image, BufferedImage.TYPE_INT_RGB);
}
Float requestQuality = (Float) originalRequest.getAttribute(ImageServletResponse.ATTRIB_OUTPUT_QUALITY);
// The default JPEG quality is not good enough, so always adjust compression/quality
if ((requestQuality != null || "jpeg".equalsIgnoreCase(getFormatNameSafe(writer))) && param.canWriteCompressed()) {
// TODO: See http://blog.apokalyptik.com/2009/09/16/quality-time-with-your-jpegs/ for better adjusting the (default) JPEG quality
// OR: Use the metadata of the original image
param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
// WORKAROUND: Known bug in GIFImageWriter in certain JDK versions, compression type is not set by default
if (param.getCompressionTypes() != null && param.getCompressionType() == null) {
param.setCompressionType(param.getCompressionTypes()[0]); // Just choose any, to keep param happy
}
param.setCompressionQuality(requestQuality != null ? requestQuality : 0.8f);
}
if ("gif".equalsIgnoreCase(getFormatNameSafe(writer)) && !(image.getColorModel() instanceof IndexColorModel)
/*&& image.getColorModel().getTransparency() != Transparency.OPAQUE*/) {
// WORKAROUND: Bug in GIFImageWriter may throw NPE if transparent pixels
// See: http://bugs.sun.com/view_bug.do?bug_id=6287936
image = ImageUtil.createIndexed(
ImageUtil.toBuffered(image), 256, null,
(image.getColorModel().getTransparency() == Transparency.OPAQUE ? ImageUtil.TRANSPARENCY_OPAQUE : ImageUtil.TRANSPARENCY_BITMASK) | ImageUtil.DITHER_DIFFUSION_ALTSCANS
);
}
//////////////////
ImageOutputStream stream = ImageIO.createImageOutputStream(out);
writer.setOutput(stream);
try {
writer.write(null, new IIOImage(image, null, null), param);
}
finally {
stream.close();
}
}
finally {
writer.dispose();
}
}
finally {
out.flush();
}
}
else {
context.log("ERROR: No writer for content-type: " + outputType);
throw new IIOException("Unable to transcode image: No suitable image writer found (content-type: " + outputType + ").");
}
}
else {
super.setContentType(originalContentType);
ServletOutputStream out = super.getOutputStream();
try {
if (bufferedOut != null) {
bufferedOut.writeTo(out);
}
}
finally {
out.flush();
}
}
}
private boolean isNonAlphaFormat(String outputType) {
return "image/jpeg".equals(outputType) || "image/jpg".equals(outputType) ||
"image/bmp".equals(outputType) || "image/x-bmp".equals(outputType);
}
private String getFormatNameSafe(final ImageWriter pWriter) {
try {
return pWriter.getOriginatingProvider().getFormatNames()[0];
}
catch (RuntimeException e) {
// NPE, AIOOBE, etc..
return null;
}
}
public String getOutputContentType() {
return outputContentType != null ? outputContentType : originalContentType;
}
public void setOutputContentType(final String pImageFormat) {
outputContentType = pImageFormat;
}
/**
* Sets the image for this response.
*
* @param pImage the {@code RenderedImage} that will be written to the
* response stream
*/
public void setImage(final RenderedImage pImage) {
image = pImage;
}
/**
* Gets the decoded image from the response.
*
* @return a {@code BufferedImage} or {@code null} if the image could
* not be read.
*
* @throws java.io.IOException if an I/O exception occurs during reading
*/
public BufferedImage getImage() throws IOException {
if (image == null) {
// No content, no image
if (bufferedOut == null) {
return null;
}
// Read from the byte buffer
InputStream byteStream = bufferedOut.createInputStream();
ImageInputStream input = null;
try {
input = ImageIO.createImageInputStream(byteStream);
Iterator readers = ImageIO.getImageReaders(input);
if (readers.hasNext()) {
// Get the correct reader
ImageReader reader = (ImageReader) readers.next();
try {
reader.setInput(input);
ImageReadParam param = reader.getDefaultReadParam();
// Get default size
int originalWidth = reader.getWidth(0);
int originalHeight = reader.getHeight(0);
//////////////////
// PRE-PROCESS (prepare): param, size, format?, request, response?
// TODO: AOI strategy?
// Extract AOI from request
Rectangle aoi = extractAOIFromRequest(originalWidth, originalHeight, originalRequest);
if (aoi != null) {
param.setSourceRegion(aoi);
originalWidth = aoi.width;
originalHeight = aoi.height;
}
// TODO: Size and subsampling strategy?
// If possible, extract size from request
Dimension size = extractSizeFromRequest(originalWidth, originalHeight, originalRequest);
double readSubSamplingFactor = getReadSubsampleFactorFromRequest(originalRequest);
if (size != null) {
//System.out.println("Size: " + size);
if (param.canSetSourceRenderSize()) {
param.setSourceRenderSize(size);
}
else {
int subX = (int) Math.max(originalWidth / (size.width * readSubSamplingFactor), 1.0);
int subY = (int) Math.max(originalHeight / (size.height * readSubSamplingFactor), 1.0);
if (subX > 1 || subY > 1) {
param.setSourceSubsampling(subX, subY, subX > 1 ? subX / 2 : 0, subY > 1 ? subY / 2 : 0);
}
}
}
// Need base URI for SVG with links/stylesheets etc
maybeSetBaseURIFromRequest(param);
/////////////////////
// Finally, read the image using the supplied parameter
BufferedImage image = reader.read(0, param);
// TODO: If we sub-sampled, it would be a good idea to blur before resampling,
// to avoid jagged lines artifacts
// If reader doesn't support dynamic sizing, scale now
image = resampleImage(image, size);
// Fill bgcolor behind image, if transparent
extractAndSetBackgroundColor(image); // TODO: Move to flush/POST-PROCESS
// Set image
this.image = image;
}
finally {
reader.dispose();
}
}
else {
context.log("ERROR: No suitable image reader found (content-type: " + originalContentType + ").");
context.log("ERROR: Available formats: " + getFormatsString());
throw new IIOException("Unable to transcode image: No suitable image reader found (content-type: " + originalContentType + ").");
}
// Free resources, as the image is now either read, or unreadable
bufferedOut = null;
}
finally {
if (input != null) {
input.close();
}
}
}
// Image is usually a BufferedImage, but may also be a RenderedImage
return image != null ? ImageUtil.toBuffered(image) : null;
}
private BufferedImage resampleImage(final BufferedImage image, final Dimension size) {
if (image != null && size != null && (image.getWidth() != size.width || image.getHeight() != size.height)) {
int resampleAlgorithm = getResampleAlgorithmFromRequest();
// TODO: One possibility is to NOT handle index color here, and only handle it later, IF NEEDED (read: GIF,
// possibly also for PNG) when we know the output format (flush method).
// This will make the filter faster (and better quality, possibly at the expense of more bytes being sent
// over the wire) in the general case. Who uses GIF nowadays anyway?
// Also, this means we could either keep the original IndexColorModel in the filter, or go through the
// expensive operation of re-calculating the optimal palette for the new image (the latter might improve quality).
// NOTE: Only use createScaled if IndexColorModel, as it's more expensive due to color conversion
/* if (image.getColorModel() instanceof IndexColorModel) {
// return ImageUtil.createScaled(image, size.width, size.height, resampleAlgorithm);
BufferedImage resampled = ImageUtil.createResampled(image, size.width, size.height, resampleAlgorithm);
return ImageUtil.createIndexed(resampled, (IndexColorModel) image.getColorModel(), null, ImageUtil.DITHER_NONE | ImageUtil.TRANSPARENCY_BITMASK);
// return ImageUtil.createIndexed(resampled, 256, null, ImageUtil.COLOR_SELECTION_QUALITY | ImageUtil.DITHER_NONE | ImageUtil.TRANSPARENCY_BITMASK);
}
else {
*/
return ImageUtil.createResampled(image, size.width, size.height, resampleAlgorithm);
// }
}
return image;
}
int getResampleAlgorithmFromRequest() {
Object algorithm = originalRequest.getAttribute(ATTRIB_IMAGE_RESAMPLE_ALGORITHM);
if (algorithm instanceof Integer && ((Integer) algorithm == Image.SCALE_SMOOTH || (Integer) algorithm == Image.SCALE_FAST || (Integer) algorithm == Image.SCALE_DEFAULT)) {
return (Integer) algorithm;
}
else {
if (algorithm != null) {
context.log("WARN: Illegal image resampling algorithm: " + algorithm);
}
return BufferedImage.SCALE_DEFAULT;
}
}
private double getReadSubsampleFactorFromRequest(final ServletRequest pOriginalRequest) {
double subsampleFactor;
Object factor = pOriginalRequest.getAttribute(ATTRIB_READ_SUBSAMPLING_FACTOR);
if (factor instanceof Number && ((Number) factor).doubleValue() >= 1.0) {
subsampleFactor = ((Number) factor).doubleValue();
}
else {
if (factor != null) {
context.log("WARN: Illegal read subsampling factor: " + factor);
}
subsampleFactor = 2.0;
}
return subsampleFactor;
}
private void extractAndSetBackgroundColor(final BufferedImage pImage) {
// TODO: bgColor request attribute instead of parameter?
if (pImage.getColorModel().hasAlpha()) {
String bgColor = originalRequest.getParameter("bg.color");
if (bgColor != null) {
Color color = StringUtil.toColor(bgColor);
Graphics2D g = pImage.createGraphics();
try {
g.setColor(color);
g.setComposite(AlphaComposite.DstOver);
g.fillRect(0, 0, pImage.getWidth(), pImage.getHeight());
}
finally {
g.dispose();
}
}
}
}
private static String getFormatsString() {
String[] formats = ImageIO.getReaderFormatNames();
StringBuilder buf = new StringBuilder();
for (int i = 0; i < formats.length; i++) {
String format = formats[i];
if (i > 0) {
buf.append(", ");
}
buf.append(format);
}
return buf.toString();
}
private void maybeSetBaseURIFromRequest(final ImageReadParam pParam) {
if (originalRequest instanceof HttpServletRequest) {
try {
// If there's a setBaseURI method, we'll try to use that (uses reflection, to avoid dependency on plugins)
Method setBaseURI;
try {
setBaseURI = pParam.getClass().getMethod("setBaseURI", String.class);
}
catch (NoSuchMethodException ignore) {
return;
}
// Get URL for resource and set as base
String baseURI = ServletUtil.getContextRelativeURI((HttpServletRequest) originalRequest);
URL resourceURL = context.getResource(baseURI);
if (resourceURL == null) {
resourceURL = ServletUtil.getRealURL(context, baseURI);
}
if (resourceURL != null) {
setBaseURI.invoke(pParam, resourceURL.toExternalForm());
}
else {
context.log("WARN: Resource URL not found for URI: " + baseURI);
}
}
catch (Exception e) {
context.log("WARN: Could not set base URI: ", e);
}
}
}
private Dimension extractSizeFromRequest(final int pDefaultWidth, final int pDefaultHeight, final ServletRequest pOriginalRequest) {
// TODO: Allow extraction from request parameters
/*
int sizeW = ServletUtil.getIntParameter(originalRequest, "size.w", -1);
int sizeH = ServletUtil.getIntParameter(originalRequest, "size.h", -1);
boolean sizePercent = ServletUtil.getBooleanParameter(originalRequest, "size.percent", false);
boolean sizeUniform = ServletUtil.getBooleanParameter(originalRequest, "size.uniform", true);
*/
Dimension size = (Dimension) pOriginalRequest.getAttribute(ATTRIB_SIZE);
int sizeW = size != null ? size.width : -1;
int sizeH = size != null ? size.height : -1;
Boolean b = (Boolean) pOriginalRequest.getAttribute(ATTRIB_SIZE_PERCENT);
boolean sizePercent = b != null && b; // default: false
b = (Boolean) pOriginalRequest.getAttribute(ATTRIB_SIZE_UNIFORM);
boolean sizeUniform = b == null || b; // default: true
if (sizeW >= 0 || sizeH >= 0) {
size = getSize(pDefaultWidth, pDefaultHeight, sizeW, sizeH, sizePercent, sizeUniform);
}
return size;
}
private Rectangle extractAOIFromRequest(final int pDefaultWidth, final int pDefaultHeight, final ServletRequest pOriginalRequest) {
// TODO: Allow extraction from request parameters
/*
int aoiX = ServletUtil.getIntParameter(originalRequest, "aoi.x", -1);
int aoiY = ServletUtil.getIntParameter(originalRequest, "aoi.y", -1);
int aoiW = ServletUtil.getIntParameter(originalRequest, "aoi.w", -1);
int aoiH = ServletUtil.getIntParameter(originalRequest, "aoi.h", -1);
boolean aoiPercent = ServletUtil.getBooleanParameter(originalRequest, "aoi.percent", false);
boolean aoiUniform = ServletUtil.getBooleanParameter(originalRequest, "aoi.uniform", false);
*/
Rectangle aoi = (Rectangle) pOriginalRequest.getAttribute(ATTRIB_AOI);
int aoiX = aoi != null ? aoi.x : -1;
int aoiY = aoi != null ? aoi.y : -1;
int aoiW = aoi != null ? aoi.width : -1;
int aoiH = aoi != null ? aoi.height : -1;
Boolean b = (Boolean) pOriginalRequest.getAttribute(ATTRIB_AOI_PERCENT);
boolean aoiPercent = b != null && b; // default: false
b = (Boolean) pOriginalRequest.getAttribute(ATTRIB_AOI_UNIFORM);
boolean aoiUniform = b != null && b; // default: false
if (aoiX >= 0 || aoiY >= 0 || aoiW >= 0 || aoiH >= 0) {
AreaOfInterest areaOfInterest = AreaOfInterestFactory.getDefault().
createAreaOfInterest(pDefaultWidth, pDefaultHeight, aoiPercent, aoiUniform);
aoi = areaOfInterest.getAOI(new Rectangle(aoiX, aoiY, aoiW, aoiH));
return aoi;
}
return null;
}
// TODO: Move these to ImageUtil or similar, as they are often used...
// TODO: Consider separate methods for percent and pixels
/**
* Gets the dimensions (height and width) of the scaled image. The
* dimensions are computed based on the old image's dimensions, the units
* used for specifying new dimensions and whether or not uniform scaling
* should be used (se algorithm below).
*
* @param pOriginalWidth the original width of the image
* @param pOriginalHeight the original height of the image
* @param pWidth the new width of the image, or -1 if unknown
* @param pHeight the new height of the image, or -1 if unknown
* @param pPercent the constant specifying units for width and height
* parameter (UNITS_PIXELS or UNITS_PERCENT)
* @param pUniform boolean specifying uniform scale or not
* @return a Dimension object, with the correct width and heigth
* in pixels, for the scaled version of the image.
*/
static Dimension getSize(int pOriginalWidth, int pOriginalHeight,
int pWidth, int pHeight,
boolean pPercent, boolean pUniform) {
// If uniform, make sure width and height are scaled the same amount
// (use ONLY height or ONLY width).
//
// Algorithm:
// if uniform
// if newHeight not set
// find ratio newWidth / oldWidth
// oldHeight *= ratio
// else if newWidth not set
// find ratio newWidth / oldWidth
// oldHeight *= ratio
// else
// find both ratios and use the smallest one
// (this will be the largest version of the image that fits
// inside the rectangle given)
// (if PERCENT, just use smallest percentage).
//
// If units is percent, we only need old height and width
float ratio;
if (pPercent) {
if (pWidth >= 0 && pHeight >= 0) {
// Non-uniform
pWidth = Math.round((float) pOriginalWidth * (float) pWidth / 100f);
pHeight = Math.round((float) pOriginalHeight * (float) pHeight / 100f);
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / 100f;
pWidth = Math.round((float) pOriginalWidth * ratio);
pHeight = Math.round((float) pOriginalHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / 100f;
pWidth = Math.round((float) pOriginalWidth * ratio);
pHeight = Math.round((float) pOriginalHeight * ratio);
}
// Else: No scale
}
else {
if (pUniform) {
if (pWidth >= 0 && pHeight >= 0) {
// Compute both ratios
ratio = (float) pWidth / (float) pOriginalWidth;
float heightRatio = (float) pHeight / (float) pOriginalHeight;
// Find the largest ratio, and use that for both
if (heightRatio < ratio) {
ratio = heightRatio;
pWidth = Math.round((float) pOriginalWidth * ratio);
}
else {
pHeight = Math.round((float) pOriginalHeight * ratio);
}
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / (float) pOriginalWidth;
pHeight = Math.round((float) pOriginalHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / (float) pOriginalHeight;
pWidth = Math.round((float) pOriginalWidth * ratio);
}
// Else: No scale
}
}
// Default is no scale, just work as a proxy
if (pWidth < 0) {
pWidth = pOriginalWidth;
}
if (pHeight < 0) {
pHeight = pOriginalHeight;
}
// Create new Dimension object and return
return new Dimension(pWidth, pHeight);
}
static Rectangle getAOI(int pOriginalWidth, int pOriginalHeight,
int pX, int pY, int pWidth, int pHeight,
boolean pPercent, boolean pMaximizeToAspect) {
// Algorithm:
// Try to get x and y (default 0,0).
// Try to get width and height (default width-x, height-y)
//
// If percent, get ratio
//
// If uniform
//
float ratio;
if (pPercent) {
if (pWidth >= 0 && pHeight >= 0) {
// Non-uniform
pWidth = Math.round((float) pOriginalWidth * (float) pWidth / 100f);
pHeight = Math.round((float) pOriginalHeight * (float) pHeight / 100f);
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / 100f;
pWidth = Math.round((float) pOriginalWidth * ratio);
pHeight = Math.round((float) pOriginalHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / 100f;
pWidth = Math.round((float) pOriginalWidth * ratio);
pHeight = Math.round((float) pOriginalHeight * ratio);
}
// Else: No crop
}
else {
// Uniform
if (pMaximizeToAspect) {
if (pWidth >= 0 && pHeight >= 0) {
// Compute both ratios
ratio = (float) pWidth / (float) pHeight;
float originalRatio = (float) pOriginalWidth / (float) pOriginalHeight;
if (ratio > originalRatio) {
pWidth = pOriginalWidth;
pHeight = Math.round((float) pOriginalWidth / ratio);
}
else {
pHeight = pOriginalHeight;
pWidth = Math.round((float) pOriginalHeight * ratio);
}
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / (float) pOriginalWidth;
pHeight = Math.round((float) pOriginalHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / (float) pOriginalHeight;
pWidth = Math.round((float) pOriginalWidth * ratio);
}
// Else: No crop
}
}
// Not specified, or outside bounds: Use original dimensions
if (pWidth < 0 || (pX < 0 && pWidth > pOriginalWidth)
|| (pX >= 0 && (pX + pWidth) > pOriginalWidth)) {
pWidth = (pX >= 0 ? pOriginalWidth - pX : pOriginalWidth);
}
if (pHeight < 0 || (pY < 0 && pHeight > pOriginalHeight)
|| (pY >= 0 && (pY + pHeight) > pOriginalHeight)) {
pHeight = (pY >= 0 ? pOriginalHeight - pY : pOriginalHeight);
}
// Center
if (pX < 0) {
pX = (pOriginalWidth - pWidth) / 2;
}
if (pY < 0) {
pY = (pOriginalHeight - pHeight) / 2;
}
// System.out.println("x: " + pX + " y: " + pY
// + " w: " + pWidth + " h " + pHeight);
return new Rectangle(pX, pY, pWidth, pHeight);
}
}

50
servlet/src/main/java/com/twelvemonkeys/servlet/image/NullImageFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import javax.servlet.ServletRequest;
/**
* An {@code ImageFilter} that does nothing. Useful for debugging purposes.
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: NullImageFilter.java $
*
*/
@Deprecated
public final class NullImageFilter extends ImageFilter {
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
return pImage;
}
}

205
servlet/src/main/java/com/twelvemonkeys/servlet/image/RotateFilter.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import javax.servlet.ServletRequest;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* This Servlet is able to render a cropped part of an image.
*
* <hr>
*
* <a name="parameters"></a><strong>Parameters:</strong><br>
* <DL>
* <DT>{@code cropX}</DT>
* <DD>integer, the new left edge of the image.
* <DT>{@code cropY}</DT>
* <DD>integer, the new top of the image.
* <DT>{@code cropWidth}</DT>
* <DD>integer, the new width of the image.
* <DT>{@code cropHeight}</DT>
* <DD>integer, the new height of the image.
* <!--
* <DT>{@code cropUniform}</DT>
* <DD>boolean, wether or not uniform scalnig should be used. Default is
* {@code true}.
* <DT>{@code cropUnits}</DT>
* <DD>string, one of {@code PIXELS}, {@code PERCENT}.
* {@code PIXELS} is default. -->
* </DL>
*
* <p>
* Examples:
* <br>
* JPEG:
* &lt;IMG src="/scale/test.jpg?image=http://www.iconmedialab.com/images/random/home_image_12.jpg&amp;width=500&amp;uniform=true"&gt;
* <br>
* PNG:
* &lt;IMG src="/scale/test.png?cache=false&amp;image=http://www.iconmedialab.com/images/random/home_image_12.jpg&amp;width=50&amp;units=PERCENT"&gt;
* </p>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: RotateFilter.java#1 $
*/
// TODO: Correct rounding errors, resulting in black borders when rotating 90
// degrees, and one of width or height is odd length...
@Deprecated
public class RotateFilter extends ImageFilter {
/** {@code angle}*/
protected final static String PARAM_ANGLE = "angle";
/** {@code angleUnits (RADIANS|DEGREES)}*/
protected final static String PARAM_ANGLE_UNITS = "angleUnits";
/** {@code crop}*/
protected final static String PARAM_CROP = "rotateCrop";
/** {@code bgcolor}*/
protected final static String PARAM_BGCOLOR = "rotateBgcolor";
/** {@code degrees}*/
private final static String ANGLE_DEGREES = "degrees";
/** {@code radians}*/
//private final static String ANGLE_RADIANS = "radians";
/**
* Reads the image from the requested URL, rotates it, and returns
* it in the
* Servlet stream. See above for details on parameters.
*/
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
// Get angle
double ang = getAngle(pRequest);
// Get bounds
Rectangle2D rect = getBounds(pRequest, pImage, ang);
int width = (int) rect.getWidth();
int height = (int) rect.getHeight();
// Create result image
BufferedImage res = ImageUtil.createTransparent(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = res.createGraphics();
// Get background color and clear
String str = pRequest.getParameter(PARAM_BGCOLOR);
if (!StringUtil.isEmpty(str)) {
Color bgcolor = StringUtil.toColor(str);
g.setBackground(bgcolor);
g.clearRect(0, 0, width, height);
}
// Set mHints (why do I always get jagged edgdes?)
RenderingHints hints = new RenderingHints(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
hints.add(new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY));
hints.add(new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON));
hints.add(new RenderingHints(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC));
g.setRenderingHints(hints);
// Rotate around center
AffineTransform at = AffineTransform
.getRotateInstance(ang, width / 2.0, height / 2.0);
// Move to center
at.translate(width / 2.0 - pImage.getWidth() / 2.0,
height / 2.0 - pImage.getHeight() / 2.0);
// Draw it, centered
g.drawImage(pImage, at, null);
return res;
}
/**
* Gets the angle of rotation.
*/
private double getAngle(ServletRequest pReq) {
double angle = 0.0;
String str = pReq.getParameter(PARAM_ANGLE);
if (!StringUtil.isEmpty(str)) {
angle = Double.parseDouble(str);
// Convert to radians, if needed
str = pReq.getParameter(PARAM_ANGLE_UNITS);
if (!StringUtil.isEmpty(str)
&& ANGLE_DEGREES.equalsIgnoreCase(str)) {
angle = Math.toRadians(angle);
}
}
return angle;
}
/**
* Get the bounding rectangle of the rotated image.
*/
private Rectangle2D getBounds(ServletRequest pReq, BufferedImage pImage,
double pAng) {
// Get dimensions of original image
int width = pImage.getWidth(); // loads the image
int height = pImage.getHeight();
// Test if we want to crop image (default)
// if true
// - find the largest bounding box INSIDE the rotated image,
// that matches the original proportions (nearest 90deg)
// (scale up to fit dimensions?)
// else
// - find the smallest bounding box OUTSIDE the rotated image.
// - that matches the original proportions (nearest 90deg) ?
// (scale down to fit dimensions?)
AffineTransform at =
AffineTransform.getRotateInstance(pAng, width / 2.0, height / 2.0);
Rectangle2D orig = new Rectangle(width, height);
Shape rotated = at.createTransformedShape(orig);
if (ServletUtil.getBooleanParameter(pReq, PARAM_CROP, false)) {
// TODO: Inside box
return rotated.getBounds2D();
}
else {
return rotated.getBounds2D();
}
}
}

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servlet/src/main/java/com/twelvemonkeys/servlet/image/ScaleFilter.java
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@@ -1,333 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.lang.reflect.Field;
import javax.servlet.ServletRequest;
import com.twelvemonkeys.image.ImageUtil;
import com.twelvemonkeys.lang.StringUtil;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* This filter renders a scaled version of an image read from a
* given URL. The image can be output as a GIF, JPEG or PNG image
* or similar<!--,
* with optional caching of the rendered image files-->.
*
* <hr>
*
* <p>
* <A name="parameters"></A><STRONG>Parameters:</STRONG><BR>
* </p>
* <DL>
* <DT>{@code scaleX}</DT>
* <DD>integer, the new width of the image.
* <DT>{@code scaleY}</DT>
* <DD>integer, the new height of the image.
* <DT>{@code scaleUniform}</DT>
* <DD>boolean, wether or not uniform scalnig should be used. Default is
* {@code true}.
* <DT>{@code scaleUnits}</DT>
* <DD>string, one of {@code PIXELS}, {@code PERCENT}.
* {@code PIXELS} is default.
* <DT>{@code scaleQuality}</DT>
* <DD>string, one of {@code SCALE_SMOOTH}, {@code SCALE_FAST},
* {@code SCALE_REPLICATE}, {@code SCALE_AREA_AVERAGING}.
* {@code SCALE_DEFAULT} is default (see
* {@link java.awt.Image#getScaledInstance(int,int,int)}, {@link java.awt.Image}
* for more details).
* </DL>
* <p>
* Examples:
* </p>
* <pre>
* &lt;IMG src="/scale/test.jpg?scaleX=500&amp;scaleUniform=false"&gt;
* &lt;IMG src="/scale/test.png?scaleY=50&amp;scaleUnits=PERCENT"&gt;
* </pre>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: ScaleFilter.java#1 $
*
*/
@Deprecated
public class ScaleFilter extends ImageFilter {
/**
* Width and height are absolute pixels. The default.
*/
public static final int UNITS_PIXELS = 1;
/**
* Width and height are percentage of original width and height.
*/
public static final int UNITS_PERCENT = 5;
/**
* Ahh, good choice!
*/
//private static final int UNITS_METRIC = 42;
/**
* The root of all evil...
*/
//private static final int UNITS_INCHES = 666;
/**
* Unknown units. <!-- Oops, what now? -->
*/
public static final int UNITS_UNKNOWN = 0;
/**
* {@code scaleQuality}
*/
protected final static String PARAM_SCALE_QUALITY = "scaleQuality";
/**
* {@code scaleUnits}
*/
protected final static String PARAM_SCALE_UNITS = "scaleUnits";
/**
* {@code scaleUniform}
*/
protected final static String PARAM_SCALE_UNIFORM = "scaleUniform";
/**
* {@code scaleX}
*/
protected final static String PARAM_SCALE_X = "scaleX";
/**
* {@code scaleY}
*/
protected final static String PARAM_SCALE_Y = "scaleY";
/**
* {@code image}
*/
protected final static String PARAM_IMAGE = "image";
/** */
protected int defaultScaleQuality = Image.SCALE_DEFAULT;
/**
* Reads the image from the requested URL, scales it, and returns it in the
* Servlet stream. See above for details on parameters.
*/
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
// Get quality setting
// SMOOTH | FAST | REPLICATE | DEFAULT | AREA_AVERAGING
// See Image (mHints)
int quality = getQuality(pRequest.getParameter(PARAM_SCALE_QUALITY));
// Get units, default is pixels
// PIXELS | PERCENT | METRIC | INCHES
int units = getUnits(pRequest.getParameter(PARAM_SCALE_UNITS));
if (units == UNITS_UNKNOWN) {
log("Unknown units for scale, returning original.");
return pImage;
}
// Use uniform scaling? Default is true
boolean uniformScale = ServletUtil.getBooleanParameter(pRequest, PARAM_SCALE_UNIFORM, true);
// Get dimensions
int width = ServletUtil.getIntParameter(pRequest, PARAM_SCALE_X, -1);
int height = ServletUtil.getIntParameter(pRequest, PARAM_SCALE_Y, -1);
// Get dimensions for scaled image
Dimension dim = getDimensions(pImage, width, height, units, uniformScale);
width = (int) dim.getWidth();
height = (int) dim.getHeight();
// Return scaled instance directly
return ImageUtil.createScaled(pImage, width, height, quality);
}
/**
* Gets the quality constant for the scaling, from the string argument.
*
* @param pQualityStr The string representation of the scale quality
* constant.
* @return The matching quality constant, or the default quality if none
* was found.
* @see java.awt.Image
* @see java.awt.Image#getScaledInstance(int,int,int)
*/
protected int getQuality(String pQualityStr) {
if (!StringUtil.isEmpty(pQualityStr)) {
try {
// Get quality constant from Image using reflection
Class cl = Image.class;
Field field = cl.getField(pQualityStr.toUpperCase());
return field.getInt(null);
}
catch (IllegalAccessException ia) {
log("Unable to get quality.", ia);
}
catch (NoSuchFieldException nsf) {
log("Unable to get quality.", nsf);
}
}
return defaultScaleQuality;
}
public void setDefaultScaleQuality(String pDefaultScaleQuality) {
defaultScaleQuality = getQuality(pDefaultScaleQuality);
}
/**
* Gets the units constant for the width and height arguments, from the
* given string argument.
*
* @param pUnitStr The string representation of the units constant,
* can be one of "PIXELS" or "PERCENT".
* @return The mathcing units constant, or UNITS_UNKNOWN if none was found.
*/
protected int getUnits(String pUnitStr) {
if (StringUtil.isEmpty(pUnitStr)
|| pUnitStr.equalsIgnoreCase("PIXELS")) {
return UNITS_PIXELS;
}
else if (pUnitStr.equalsIgnoreCase("PERCENT")) {
return UNITS_PERCENT;
}
else {
return UNITS_UNKNOWN;
}
}
/**
* Gets the dimensions (height and width) of the scaled image. The
* dimensions are computed based on the old image's dimensions, the units
* used for specifying new dimensions and whether or not uniform scaling
* should be used (se algorithm below).
*
* @param pImage the image to be scaled
* @param pWidth the new width of the image, or -1 if unknown
* @param pHeight the new height of the image, or -1 if unknown
* @param pUnits the constant specifying units for width and height
* parameter (UNITS_PIXELS or UNITS_PERCENT)
* @param pUniformScale boolean specifying uniform scale or not
* @return a Dimension object, with the correct width and heigth
* in pixels, for the scaled version of the image.
*/
protected Dimension getDimensions(Image pImage, int pWidth, int pHeight,
int pUnits, boolean pUniformScale) {
// If uniform, make sure width and height are scaled the same ammount
// (use ONLY height or ONLY width).
//
// Algoritm:
// if uniform
// if newHeight not set
// find ratio newWidth / oldWidth
// oldHeight *= ratio
// else if newWidth not set
// find ratio newWidth / oldWidth
// oldHeight *= ratio
// else
// find both ratios and use the smallest one
// (this will be the largest version of the image that fits
// inside the rectangle given)
// (if PERCENT, just use smallest percentage).
//
// If units is percent, we only need old height and width
int oldWidth = ImageUtil.getWidth(pImage);
int oldHeight = ImageUtil.getHeight(pImage);
float ratio;
if (pUnits == UNITS_PERCENT) {
if (pWidth >= 0 && pHeight >= 0) {
// Non-uniform
pWidth = (int) ((float) oldWidth * (float) pWidth / 100f);
pHeight = (int) ((float) oldHeight * (float) pHeight / 100f);
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / 100f;
pWidth = (int) ((float) oldWidth * ratio);
pHeight = (int) ((float) oldHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / 100f;
pWidth = (int) ((float) oldWidth * ratio);
pHeight = (int) ((float) oldHeight * ratio);
}
// Else: No scale
}
else if (pUnits == UNITS_PIXELS) {
if (pUniformScale) {
if (pWidth >= 0 && pHeight >= 0) {
// Compute both ratios
ratio = (float) pWidth / (float) oldWidth;
float heightRatio = (float) pHeight / (float) oldHeight;
// Find the largest ratio, and use that for both
if (heightRatio < ratio) {
ratio = heightRatio;
pWidth = (int) ((float) oldWidth * ratio);
}
else {
pHeight = (int) ((float) oldHeight * ratio);
}
}
else if (pWidth >= 0) {
// Find ratio from pWidth
ratio = (float) pWidth / (float) oldWidth;
pHeight = (int) ((float) oldHeight * ratio);
}
else if (pHeight >= 0) {
// Find ratio from pHeight
ratio = (float) pHeight / (float) oldHeight;
pWidth = (int) ((float) oldWidth * ratio);
}
// Else: No scale
}
}
// Default is no scale, just work as a proxy
if (pWidth < 0) {
pWidth = oldWidth;
}
if (pHeight < 0) {
pHeight = oldHeight;
}
// Create new Dimension object and return
return new Dimension(pWidth, pHeight);
}
}

186
servlet/src/main/java/com/twelvemonkeys/servlet/image/SourceRenderFilter.java
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@@ -1,186 +0,0 @@
/*
* Copyright (c) 2009, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.IOException;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import com.twelvemonkeys.servlet.ServletUtil;
/**
* A {@link javax.servlet.Filter} that extracts request parameters, and sets the
* corresponding request attributes from {@link ImageServletResponse}.
* Only affects how the image is decoded, and must be applied before any
* other image filters in the chain.
*
* @see ImageServletResponse#ATTRIB_SIZE
* @see ImageServletResponse#ATTRIB_AOI
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: SourceRenderFilter.java#1 $
*/
@Deprecated
public class SourceRenderFilter extends ImageFilter {
private String sizeWidthParam = "size.w";
private String sizeHeightParam = "size.h";
private String sizePercentParam = "size.percent";
private String sizeUniformParam = "size.uniform";
private String regionWidthParam = "aoi.w";
private String regionHeightParam = "aoi.h";
private String regionLeftParam = "aoi.x";
private String regionTopParam = "aoi.y";
private String regionPercentParam = "aoi.percent";
private String regionUniformParam = "aoi.uniform";
public void setRegionHeightParam(String pRegionHeightParam) {
regionHeightParam = pRegionHeightParam;
}
public void setRegionWidthParam(String pRegionWidthParam) {
regionWidthParam = pRegionWidthParam;
}
public void setRegionLeftParam(String pRegionLeftParam) {
regionLeftParam = pRegionLeftParam;
}
public void setRegionTopParam(String pRegionTopParam) {
regionTopParam = pRegionTopParam;
}
public void setSizeHeightParam(String pSizeHeightParam) {
sizeHeightParam = pSizeHeightParam;
}
public void setSizeWidthParam(String pSizeWidthParam) {
sizeWidthParam = pSizeWidthParam;
}
public void setRegionPercentParam(String pRegionPercentParam) {
regionPercentParam = pRegionPercentParam;
}
public void setRegionUniformParam(String pRegionUniformParam) {
regionUniformParam = pRegionUniformParam;
}
public void setSizePercentParam(String pSizePercentParam) {
sizePercentParam = pSizePercentParam;
}
public void setSizeUniformParam(String pSizeUniformParam) {
sizeUniformParam = pSizeUniformParam;
}
public void init() throws ServletException {
if (triggerParams == null) {
// Add all params as triggers
triggerParams = new String[]{sizeWidthParam, sizeHeightParam,
sizeUniformParam, sizePercentParam,
regionLeftParam, regionTopParam,
regionWidthParam, regionHeightParam,
regionUniformParam, regionPercentParam};
}
}
/**
* Extracts request parameters, and sets the corresponding request
* attributes if specified.
*
* @param pRequest
* @param pResponse
* @param pChain
* @throws IOException
* @throws ServletException
*/
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
// TODO: Max size configuration, to avoid DOS attacks? OutOfMemory
// Size parameters
int width = ServletUtil.getIntParameter(pRequest, sizeWidthParam, -1);
int height = ServletUtil.getIntParameter(pRequest, sizeHeightParam, -1);
if (width > 0 || height > 0) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_SIZE, new Dimension(width, height));
}
// Size uniform/percent
boolean uniform = ServletUtil.getBooleanParameter(pRequest, sizeUniformParam, true);
if (!uniform) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_SIZE_UNIFORM, Boolean.FALSE);
}
boolean percent = ServletUtil.getBooleanParameter(pRequest, sizePercentParam, false);
if (percent) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_SIZE_PERCENT, Boolean.TRUE);
}
// Area of interest parameters
int x = ServletUtil.getIntParameter(pRequest, regionLeftParam, -1); // Default is center
int y = ServletUtil.getIntParameter(pRequest, regionTopParam, -1); // Default is center
width = ServletUtil.getIntParameter(pRequest, regionWidthParam, -1);
height = ServletUtil.getIntParameter(pRequest, regionHeightParam, -1);
if (width > 0 || height > 0) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_AOI, new Rectangle(x, y, width, height));
}
// AOI uniform/percent
uniform = ServletUtil.getBooleanParameter(pRequest, regionUniformParam, false);
if (uniform) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_SIZE_UNIFORM, Boolean.TRUE);
}
percent = ServletUtil.getBooleanParameter(pRequest, regionPercentParam, false);
if (percent) {
pRequest.setAttribute(ImageServletResponse.ATTRIB_SIZE_PERCENT, Boolean.TRUE);
}
super.doFilterImpl(pRequest, pResponse, pChain);
}
/**
* This implementation does no filtering, and simply returns the image
* passed in.
*
* @param pImage
* @param pRequest
* @param pResponse
* @return {@code pImage}
*/
protected RenderedImage doFilter(BufferedImage pImage, ServletRequest pRequest, ImageServletResponse pResponse) {
return pImage;
}
}

51
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/AreaOfInterest.java
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@@ -1,51 +0,0 @@
/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.awt.*;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public interface AreaOfInterest {
Rectangle getAOI(Rectangle pCrop);
Dimension getOriginalDimension();
int calculateX(Dimension pOriginalDimension, Rectangle pCrop);
int calculateY(Dimension pOriginalDimension, Rectangle pCrop);
Dimension getCrop(Dimension pOriginalDimension, Rectangle pCrop);
}

64
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/AreaOfInterestFactory.java
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@@ -1,64 +0,0 @@
/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public class AreaOfInterestFactory {
private final static AtomicReference<AreaOfInterestFactory> DEFAULT =
new AtomicReference<AreaOfInterestFactory>(new AreaOfInterestFactory());
public static void setDefault(AreaOfInterestFactory factory) {
DEFAULT.set(factory);
}
public static AreaOfInterestFactory getDefault() {
return DEFAULT.get();
}
public AreaOfInterest createAreaOfInterest(int pDefaultWidth, int pDefaultHeight, boolean aoiPercent, boolean aoiUniform) {
if (aoiPercent && aoiUniform) {
throw new IllegalArgumentException("Cannot be both uniform and percent Area of Interest");
}
if (aoiPercent) {
return new PercentAreaOfInterest(pDefaultWidth, pDefaultHeight);
}
else if (aoiUniform) {
return new UniformAreaOfInterest(pDefaultWidth, pDefaultHeight);
}
return new DefaultAreaOfInterest(pDefaultWidth, pDefaultHeight);
}
}

68
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/AreaOfInterestWrapper.java
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/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.awt.*;
import com.twelvemonkeys.lang.Validate;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public class AreaOfInterestWrapper implements AreaOfInterest {
private AreaOfInterest mDelegate;
public AreaOfInterestWrapper(AreaOfInterest mDelegate) {
this.mDelegate = Validate.notNull(mDelegate);
}
public Rectangle getAOI(Rectangle pCrop) {
return mDelegate.getAOI(pCrop);
}
public Dimension getOriginalDimension() {
return mDelegate.getOriginalDimension();
}
public int calculateX(Dimension pOriginalDimension, Rectangle pCrop) {
return mDelegate.calculateX(pOriginalDimension, pCrop);
}
public int calculateY(Dimension pOriginalDimension, Rectangle pCrop) {
return mDelegate.calculateY(pOriginalDimension, pCrop);
}
public Dimension getCrop(Dimension pOriginalDimension, Rectangle pCrop) {
return mDelegate.getCrop(pOriginalDimension, pCrop);
}
}

106
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/DefaultAreaOfInterest.java
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@@ -1,106 +0,0 @@
/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.awt.*;
/**
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author <a href="mailto:erlend@hamnaberg.net">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public class DefaultAreaOfInterest implements AreaOfInterest {
private final int mOriginalWidth;
private final int mOriginalHeight;
public DefaultAreaOfInterest(int pOriginalWidth, int pOriginalHeight) {
this.mOriginalWidth = pOriginalWidth;
this.mOriginalHeight = pOriginalHeight;
}
public DefaultAreaOfInterest(Dimension pOriginalDimension) {
this(pOriginalDimension.width, pOriginalDimension.height);
}
Rectangle getAOI(final int pX, final int pY, final int pWidth, final int pHeight) {
return getAOI(new Rectangle(pX, pY, pWidth, pHeight));
}
public Rectangle getAOI(final Rectangle pCrop) {
int y = pCrop.y;
int x = pCrop.x;
Dimension dimension = getOriginalDimension();
Dimension crop = getCrop(dimension, pCrop);
// Center
if (y < 0) {
y = calculateY(dimension, new Rectangle(x, y, crop.width, crop.height));
}
if (x < 0) {
x = calculateX(dimension, new Rectangle(x, y, crop.width, crop.height));
}
return new Rectangle(x, y, crop.width, crop.height);
}
public Dimension getOriginalDimension() {
return new Dimension(mOriginalWidth, mOriginalHeight);
}
public int calculateX(Dimension pOriginalDimension, Rectangle pCrop) {
return (pOriginalDimension.width - pCrop.width) / 2;
}
public int calculateY(Dimension pOriginalDimension, Rectangle pCrop) {
return (pOriginalDimension.height - pCrop.height) / 2;
}
public Dimension getCrop(Dimension pOriginalDimension, final Rectangle pCrop) {
int mOriginalWidth1 = pOriginalDimension.width;
int mOriginalHeight1 = pOriginalDimension.height;
int x = pCrop.x;
int y = pCrop.y;
int cropWidth = pCrop.width;
int cropHeight = pCrop.height;
if (cropWidth < 0 || (x < 0 && cropWidth > mOriginalWidth1)
|| (x >= 0 && (x + cropWidth) > mOriginalWidth1)) {
cropWidth = (x >= 0 ? mOriginalWidth1 - x : mOriginalWidth1);
}
if (cropHeight < 0 || (y < 0 && cropHeight > mOriginalHeight1)
|| (y >= 0 && (y + cropHeight) > mOriginalHeight1)) {
cropHeight = (y >= 0 ? mOriginalHeight1 - y : mOriginalHeight1);
}
return new Dimension(cropWidth, cropHeight);
}
}

78
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/PercentAreaOfInterest.java
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@@ -1,78 +0,0 @@
/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.awt.*;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public class PercentAreaOfInterest extends DefaultAreaOfInterest {
public PercentAreaOfInterest(Dimension pOriginalDimension) {
super(pOriginalDimension);
}
public PercentAreaOfInterest(int pOriginalWidth, int pOriginalHeight) {
super(pOriginalWidth, pOriginalHeight);
}
public Dimension getCrop(Dimension pOriginalDimension, final Rectangle pCrop) {
int cropWidth = pCrop.width;
int cropHeight = pCrop.height;
float ratio;
if (cropWidth >= 0 && cropHeight >= 0) {
// Non-uniform
cropWidth = Math.round((float) pOriginalDimension.width * (float) pCrop.width / 100f);
cropHeight = Math.round((float) pOriginalDimension.height * (float) pCrop.height / 100f);
}
else if (cropWidth >= 0) {
// Find ratio from pWidth
ratio = (float) cropWidth / 100f;
cropWidth = Math.round((float) pOriginalDimension.width * ratio);
cropHeight = Math.round((float) pOriginalDimension.height * ratio);
}
else if (cropHeight >= 0) {
// Find ratio from pHeight
ratio = (float) cropHeight / 100f;
cropWidth = Math.round((float) pOriginalDimension.width * ratio);
cropHeight = Math.round((float) pOriginalDimension.height * ratio);
}
// Else: No crop
return new Dimension(cropWidth, cropHeight);
}
}

78
servlet/src/main/java/com/twelvemonkeys/servlet/image/aoi/UniformAreaOfInterest.java
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/*
* Copyright (c) 2012, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import java.awt.*;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
@Deprecated
public class UniformAreaOfInterest extends DefaultAreaOfInterest {
public UniformAreaOfInterest(Dimension pOriginalDimension) {
super(pOriginalDimension);
}
public UniformAreaOfInterest(int pOriginalWidth, int pOriginalHeight) {
super(pOriginalWidth, pOriginalHeight);
}
public Dimension getCrop(Dimension pOriginalDimension, final Rectangle pCrop) {
float ratio;
if (pCrop.width >= 0 && pCrop.height >= 0) {
// Compute both ratios
ratio = (float) pCrop.width / (float) pCrop.height;
float originalRatio = (float) pOriginalDimension.width / (float) pOriginalDimension.height;
if (ratio > originalRatio) {
pCrop.width = pOriginalDimension.width;
pCrop.height = Math.round((float) pOriginalDimension.width / ratio);
}
else {
pCrop.height = pOriginalDimension.height;
pCrop.width = Math.round((float) pOriginalDimension.height * ratio);
}
}
else if (pCrop.width >= 0) {
// Find ratio from pWidth
ratio = (float) pCrop.width / (float) pOriginalDimension.width;
pCrop.height = Math.round((float) pOriginalDimension.height * ratio);
}
else if (pCrop.height >= 0) {
// Find ratio from pHeight
ratio = (float) pCrop.height / (float) pOriginalDimension.height;
pCrop.width = Math.round((float) pOriginalDimension.width * ratio);
}
// Else: No crop
return new Dimension(pCrop.width, pCrop.height);
}
}

34
servlet/src/main/java/com/twelvemonkeys/servlet/image/package_info.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, Harald Kuhr
* Copyright (c) 2021, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -29,35 +29,7 @@
*/
/**
* Contains various image-outputting filters, that should run under any
* servlet engine.
* <P>
* Some of these methods may require use of the native graphics libraries
* supported by the JVM, like the X libraries on Unix systems, and should be
* run with JRE <STRONG>1.4</STRONG> or later, and with the option:
* <DL>
* <DD>{@code -Djawa.awt.headless=true}</DD>
* </DL>
* See the document
* <A href="http://java.sun.com/j2se/1.4/docs/guide/awt/AWTChanges.html#headless">AWT Enhancements</A> and bugtraq report
* <A href="http://developer.java.sun.com/developer/bugParade/bugs/4281163.html">4281163</A> for more information on this issue.
* <P>
* If you cannot use JRE 1.4 or later, or do not want to use the X
* libraries, one possibility is to use the
* <A href="http://www.eteks.com/pja/en/">PJA package</A> (com.eteks.pja),
* and start the JVM with the following options:
* <DL>
* <DD>{@code -Xbootclasspath/a:&lt;path to pja.jar&gt;}</DD>
* <DD>{@code -Dawt.toolkit=com.eteks.awt.PJAToolkit}</DD>
* <DD>{@code -Djava.awt.graphicsenv=com.eteks.java2d.PJAGraphicsEnvironment}</DD>
* <DD>{@code -Djava.awt.fonts=&lt;path where True Type fonts files will be loaded from&gt;}</DD>
* </DL>
* <P>
* Please note that creation of PNG images (from bytes or URL's) are only
* supported in JRE 1.3 and later, trying to load them from an earlier version,
* will result in errors.
*
* @see com.twelvemonkeys.servlet.image.ImageServlet
* @see com.twelvemonkeys.servlet.image.ImagePainterServlet
* Contains the context listener required for bundling ImageIO plugins
* inside a web application.
*/
package com.twelvemonkeys.servlet.image;

34
servlet/src/main/java/com/twelvemonkeys/servlet/package_info.java
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@@ -1,34 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Contains servlet support classes.
*/
package com.twelvemonkeys.servlet;

469
servlet/src/test/java/com/twelvemonkeys/servlet/FilterAbstractTest.java
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@@ -1,469 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.lang.ObjectAbstractTest;
import org.junit.Test;
import javax.servlet.*;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
/**
* FilterAbstractTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/FilterAbstractTestCase.java#1 $
*/
public abstract class FilterAbstractTest extends ObjectAbstractTest {
protected Object makeObject() {
return makeFilter();
}
protected abstract Filter makeFilter();
// TODO: Is it a good thing to have an API like this?
protected FilterConfig makeFilterConfig() {
return makeFilterConfig(new HashMap());
}
protected FilterConfig makeFilterConfig(Map pParams) {
return new MockFilterConfig(pParams);
}
protected ServletRequest makeRequest() {
return new MockServletRequest();
}
protected ServletResponse makeResponse() {
return new MockServletResponse();
}
protected FilterChain makeFilterChain() {
return new MockFilterChain();
}
@Test
public void testInitNull() {
Filter filter = makeFilter();
// The spec seems to be a little unclear on this issue, but anyway,
// the container should never invoke init(null)...
try {
filter.init(null);
fail("Should throw Exception on init(null)");
}
catch (IllegalArgumentException e) {
// Good
}
catch (NullPointerException e) {
// Bad (but not unreasonable)
}
catch (ServletException e) {
// Hmmm.. The jury is still out.
}
}
@Test
public void testInit() {
Filter filter = makeFilter();
try {
filter.init(makeFilterConfig());
}
catch (ServletException e) {
assertNotNull(e.getMessage());
}
finally {
filter.destroy();
}
}
@Test
public void testLifeCycle() throws ServletException {
Filter filter = makeFilter();
try {
filter.init(makeFilterConfig());
}
finally {
filter.destroy();
}
}
@Test
public void testFilterBasic() throws ServletException, IOException {
Filter filter = makeFilter();
try {
filter.init(makeFilterConfig());
filter.doFilter(makeRequest(), makeResponse(), makeFilterChain());
}
finally {
filter.destroy();
}
}
@Test
public void testDestroy() {
// TODO: Implement
}
static class MockFilterConfig implements FilterConfig {
private final Map<String, String> params;
MockFilterConfig(Map<String, String> pParams) {
if (pParams == null) {
throw new IllegalArgumentException("params == null");
}
params = pParams;
}
public String getFilterName() {
return "mock-filter";
}
public String getInitParameter(String pName) {
return params.get(pName);
}
public Enumeration getInitParameterNames() {
return Collections.enumeration(params.keySet());
}
public ServletContext getServletContext() {
return new MockServletContext();
}
private static class MockServletContext implements ServletContext {
private final Map<String, Object> attributes;
private final Map<String, String> params;
MockServletContext() {
attributes = new HashMap<>();
params = new HashMap<>();
}
public Object getAttribute(String s) {
return attributes.get(s);
}
public Enumeration getAttributeNames() {
return Collections.enumeration(attributes.keySet());
}
public ServletContext getContext(String s) {
return null; // TODO: Implement
}
public String getInitParameter(String s) {
return params.get(s);
}
public Enumeration getInitParameterNames() {
return Collections.enumeration(params.keySet());
}
public int getMajorVersion() {
return 0; // TODO: Implement
}
public String getMimeType(String s) {
return null; // TODO: Implement
}
public int getMinorVersion() {
return 0; // TODO: Implement
}
public RequestDispatcher getNamedDispatcher(String s) {
return null; // TODO: Implement
}
public String getRealPath(String s) {
return null; // TODO: Implement
}
public RequestDispatcher getRequestDispatcher(String s) {
return null; // TODO: Implement
}
public URL getResource(String s) throws MalformedURLException {
return null; // TODO: Implement
}
public InputStream getResourceAsStream(String s) {
return null; // TODO: Implement
}
public Set getResourcePaths(String s) {
return null; // TODO: Implement
}
public String getServerInfo() {
return null; // TODO: Implement
}
public Servlet getServlet(String s) throws ServletException {
return null; // TODO: Implement
}
public String getServletContextName() {
return "mock";
}
public Enumeration getServletNames() {
return null; // TODO: Implement
}
public Enumeration getServlets() {
return null; // TODO: Implement
}
public void log(Exception exception, String s) {
}
public void log(String s) {
}
public void log(String s, Throwable throwable) {
}
public void removeAttribute(String s) {
attributes.remove(s);
}
public void setAttribute(String s, Object obj) {
attributes.put(s, obj);
}
}
}
static class MockServletRequest implements ServletRequest {
final private Map<String, Object> attributes;
public MockServletRequest() {
attributes = new HashMap<String, Object>();
}
public Object getAttribute(String pKey) {
return attributes.get(pKey);
}
public Enumeration getAttributeNames() {
return Collections.enumeration(attributes.keySet());
}
public String getCharacterEncoding() {
return null; // TODO: Implement
}
public void setCharacterEncoding(String pMessage) throws UnsupportedEncodingException {
// TODO: Implement
}
public int getContentLength() {
return 0; // TODO: Implement
}
public String getContentType() {
return null; // TODO: Implement
}
public ServletInputStream getInputStream() throws IOException {
return null; // TODO: Implement
}
public String getParameter(String pMessage) {
return null; // TODO: Implement
}
public Enumeration getParameterNames() {
return null; // TODO: Implement
}
public String[] getParameterValues(String pMessage) {
return new String[0]; // TODO: Implement
}
public Map getParameterMap() {
return null; // TODO: Implement
}
public String getProtocol() {
return null; // TODO: Implement
}
public String getScheme() {
return null; // TODO: Implement
}
public String getServerName() {
return null; // TODO: Implement
}
public int getServerPort() {
return 0; // TODO: Implement
}
public BufferedReader getReader() throws IOException {
return null; // TODO: Implement
}
public String getRemoteAddr() {
return null; // TODO: Implement
}
public String getRemoteHost() {
return null; // TODO: Implement
}
public void setAttribute(String pKey, Object pValue) {
attributes.put(pKey, pValue);
}
public void removeAttribute(String pKey) {
attributes.remove(pKey);
}
public Locale getLocale() {
return null; // TODO: Implement
}
public Enumeration getLocales() {
return null; // TODO: Implement
}
public boolean isSecure() {
return false; // TODO: Implement
}
public RequestDispatcher getRequestDispatcher(String pMessage) {
return null; // TODO: Implement
}
public String getRealPath(String pMessage) {
return null; // TODO: Implement
}
public int getRemotePort() {
throw new UnsupportedOperationException("Method getRemotePort not implemented");// TODO: Implement
}
public String getLocalName() {
throw new UnsupportedOperationException("Method getLocalName not implemented");// TODO: Implement
}
public String getLocalAddr() {
throw new UnsupportedOperationException("Method getLocalAddr not implemented");// TODO: Implement
}
public int getLocalPort() {
throw new UnsupportedOperationException("Method getLocalPort not implemented");// TODO: Implement
}
}
static class MockServletResponse implements ServletResponse {
public void flushBuffer() throws IOException {
// TODO: Implement
}
public int getBufferSize() {
return 0; // TODO: Implement
}
public String getCharacterEncoding() {
return null; // TODO: Implement
}
public String getContentType() {
throw new UnsupportedOperationException("Method getContentType not implemented");// TODO: Implement
}
public Locale getLocale() {
return null; // TODO: Implement
}
public ServletOutputStream getOutputStream() throws IOException {
return null; // TODO: Implement
}
public PrintWriter getWriter() throws IOException {
return null; // TODO: Implement
}
public void setCharacterEncoding(String charset) {
throw new UnsupportedOperationException("Method setCharacterEncoding not implemented");// TODO: Implement
}
public boolean isCommitted() {
return false; // TODO: Implement
}
public void reset() {
// TODO: Implement
}
public void resetBuffer() {
// TODO: Implement
}
public void setBufferSize(int pLength) {
// TODO: Implement
}
public void setContentLength(int pLength) {
// TODO: Implement
}
public void setContentType(String pMessage) {
// TODO: Implement
}
public void setLocale(Locale pLocale) {
// TODO: Implement
}
}
static class MockFilterChain implements FilterChain {
public void doFilter(ServletRequest pRequest, ServletResponse pResponse) throws IOException, ServletException {
// TODO: Implement
}
}
}

181
servlet/src/test/java/com/twelvemonkeys/servlet/GenericFilterTest.java
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@@ -1,181 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import org.junit.Test;
import javax.servlet.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static org.junit.Assert.*;
/**
* GenericFilterTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/GenericFilterTestCase.java#1 $
*/
public final class GenericFilterTest extends FilterAbstractTest {
protected Filter makeFilter() {
return new GenericFilterImpl();
}
@Test
public void testInitOncePerRequest() {
// Default FALSE
GenericFilter filter = new GenericFilterImpl();
try {
filter.init(makeFilterConfig());
}
catch (ServletException e) {
fail(e.getMessage());
}
assertFalse("OncePerRequest should default to false", filter.oncePerRequest);
filter.destroy();
// TRUE
filter = new GenericFilterImpl();
Map<String, String> params = new HashMap<>();
params.put("once-per-request", "true");
try {
filter.init(makeFilterConfig(params));
}
catch (ServletException e) {
fail(e.getMessage());
}
assertTrue("oncePerRequest should be true", filter.oncePerRequest);
filter.destroy();
// TRUE
filter = new GenericFilterImpl();
params = new HashMap<>();
params.put("oncePerRequest", "true");
try {
filter.init(makeFilterConfig(params));
}
catch (ServletException e) {
fail(e.getMessage());
}
assertTrue("oncePerRequest should be true", filter.oncePerRequest);
filter.destroy();
}
@Test
public void testFilterOnlyOnce() {
final GenericFilterImpl filter = new GenericFilterImpl();
filter.setOncePerRequest(true);
try {
filter.init(makeFilterConfig());
}
catch (ServletException e) {
fail(e.getMessage());
}
FilterChain chain = new MyFilterChain(new Filter[] {filter, filter, filter});
try {
chain.doFilter(makeRequest(), makeResponse());
}
catch (IOException | ServletException e) {
fail(e.getMessage());
}
assertEquals("Filter was invoked more than once!", 1, filter.invocationCount);
filter.destroy();
}
@Test
public void testFilterMultiple() {
final GenericFilterImpl filter = new GenericFilterImpl();
try {
filter.init(makeFilterConfig());
}
catch (ServletException e) {
fail(e.getMessage());
}
FilterChain chain = new MyFilterChain(new Filter[] {
filter, filter, filter, filter, filter
});
try {
chain.doFilter(makeRequest(), makeResponse());
}
catch (IOException | ServletException e) {
fail(e.getMessage());
}
assertEquals("Filter was invoked not invoked five times!", 5, filter.invocationCount);
filter.destroy();
}
private static class GenericFilterImpl extends GenericFilter {
int invocationCount;
protected void doFilterImpl(ServletRequest pRequest, ServletResponse pResponse, FilterChain pChain) throws IOException, ServletException {
invocationCount++;
pChain.doFilter(pRequest, pResponse);
}
}
private static class MyFilterChain implements FilterChain {
Filter[] mFilters;
int mCurrentFilter;
public MyFilterChain(Filter[] pFilters) {
if (pFilters == null) {
throw new IllegalArgumentException("filters == null");
}
mFilters = pFilters;
mCurrentFilter = 0;
}
public void doFilter(ServletRequest pRequest, ServletResponse pResponse) throws IOException, ServletException {
if (mCurrentFilter < mFilters.length) {
mFilters[mCurrentFilter++].doFilter(pRequest, pResponse, this);
}
}
}
}

162
servlet/src/test/java/com/twelvemonkeys/servlet/ServletAttributesMapAdapterContextTest.java
View File

@@ -1,162 +0,0 @@
/*
* Copyright (c) 2013, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.MapAbstractTest;
import org.junit.Test;
import org.mockito.Mockito;
import javax.servlet.ServletContext;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.mockito.Mockito.mock;
/**
* ServletConfigMapAdapterTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ServletAttributesMapAdapterTestCase.java#1 $
*/
public class ServletAttributesMapAdapterContextTest extends MapAbstractTest {
private static final String ATTRIB_VALUE_ETAG = "\"1234567890abcdef\"";
private static final Date ATTRIB_VALUE_DATE = new Date();
private static final List<Integer> ATTRIB_VALUE_FOO = Arrays.asList(1, 2);
@Override
public boolean isTestSerialization() {
return false;
}
@Override
public boolean isAllowNullKey() {
return false; // Makes no sense...
}
@Override
public boolean isAllowNullValue() {
return false; // Should be allowed, but the tests don't handle the put(foo, null) == remove(foo) semantics
}
public Map makeEmptyMap() {
MockServletContextImpl context = mock(MockServletContextImpl.class, Mockito.CALLS_REAL_METHODS);
context.attributes = createAttributes(false);
return new ServletAttributesMapAdapter(context);
}
@Override
public Map makeFullMap() {
MockServletContextImpl context = mock(MockServletContextImpl.class, Mockito.CALLS_REAL_METHODS);
context.attributes = createAttributes(true);
return new ServletAttributesMapAdapter(context);
}
private Map<String, Object> createAttributes(boolean initialValues) {
Map<String, Object> map = new ConcurrentHashMap<>();
if (initialValues) {
String[] sampleKeys = (String[]) getSampleKeys();
for (int i = 0; i < sampleKeys.length; i++) {
map.put(sampleKeys[i], getSampleValues()[i]);
}
}
return map;
}
@Override
public Object[] getSampleKeys() {
return new String[] {"Date", "ETag", "X-Foo"};
}
@Override
public Object[] getSampleValues() {
return new Object[] {ATTRIB_VALUE_DATE, ATTRIB_VALUE_ETAG, ATTRIB_VALUE_FOO};
}
@Override
public Object[] getNewSampleValues() {
// Needs to be same length but different values
return new Object[] {new Date(-1L), "foo/bar", Arrays.asList(2, 3, 4)};
}
@Test
@SuppressWarnings("unchecked")
@Override
public void testMapPutNullValue() {
// Special null semantics
resetFull();
int size = map.size();
String key = getClass().getName() + ".someNewKey";
map.put(key, null);
assertEquals(size, map.size());
assertFalse(map.containsKey(key));
map.put(getSampleKeys()[0], null);
assertEquals(size - 1, map.size());
assertFalse(map.containsKey(getSampleKeys()[0]));
map.remove(getSampleKeys()[1]);
assertEquals(size - 2, map.size());
assertFalse(map.containsKey(getSampleKeys()[1]));
}
private static abstract class MockServletContextImpl implements ServletContext {
Map<String, Object> attributes;
public Object getAttribute(String name) {
return attributes.get(name);
}
public Enumeration getAttributeNames() {
return Collections.enumeration(attributes.keySet());
}
public void setAttribute(String name, Object o) {
if (o == null) {
attributes.remove(name);
}
else {
attributes.put(name, o);
}
}
public void removeAttribute(String name) {
attributes.remove(name);
}
}
}

162
servlet/src/test/java/com/twelvemonkeys/servlet/ServletAttributesMapAdapterRequestTest.java
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@@ -1,162 +0,0 @@
/*
* Copyright (c) 2013, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.MapAbstractTest;
import org.junit.Test;
import org.mockito.Mockito;
import javax.servlet.ServletRequest;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.mockito.Mockito.mock;
/**
* ServletConfigMapAdapterTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ServletAttributesMapAdapterTestCase.java#1 $
*/
public class ServletAttributesMapAdapterRequestTest extends MapAbstractTest {
private static final String ATTRIB_VALUE_ETAG = "\"1234567890abcdef\"";
private static final Date ATTRIB_VALUE_DATE = new Date();
private static final List<Integer> ATTRIB_VALUE_FOO = Arrays.asList(1, 2);
@Override
public boolean isTestSerialization() {
return false;
}
@Override
public boolean isAllowNullKey() {
return false; // Makes no sense...
}
@Override
public boolean isAllowNullValue() {
return false; // Should be allowed, but the tests don't handle the put(foo, null) == remove(foo) semantics
}
public Map makeEmptyMap() {
MockServletRequestImpl request = mock(MockServletRequestImpl.class, Mockito.CALLS_REAL_METHODS);
request.attributes = createAttributes(false);
return new ServletAttributesMapAdapter(request);
}
@Override
public Map makeFullMap() {
MockServletRequestImpl request = mock(MockServletRequestImpl.class, Mockito.CALLS_REAL_METHODS);
request.attributes = createAttributes(true);
return new ServletAttributesMapAdapter(request);
}
private Map<String, Object> createAttributes(boolean initialValues) {
Map<String, Object> map = new ConcurrentHashMap<>();
if (initialValues) {
String[] sampleKeys = (String[]) getSampleKeys();
for (int i = 0; i < sampleKeys.length; i++) {
map.put(sampleKeys[i], getSampleValues()[i]);
}
}
return map;
}
@Override
public Object[] getSampleKeys() {
return new String[] {"Date", "ETag", "X-Foo"};
}
@Override
public Object[] getSampleValues() {
return new Object[] {ATTRIB_VALUE_DATE, ATTRIB_VALUE_ETAG, ATTRIB_VALUE_FOO};
}
@Override
public Object[] getNewSampleValues() {
// Needs to be same length but different values
return new Object[] {new Date(-1L), "foo/bar", Arrays.asList(2, 3, 4)};
}
@Test
@SuppressWarnings("unchecked")
@Override
public void testMapPutNullValue() {
// Special null semantics
resetFull();
int size = map.size();
String key = getClass().getName() + ".someNewKey";
map.put(key, null);
assertEquals(size, map.size());
assertFalse(map.containsKey(key));
map.put(getSampleKeys()[0], null);
assertEquals(size - 1, map.size());
assertFalse(map.containsKey(getSampleKeys()[0]));
map.remove(getSampleKeys()[1]);
assertEquals(size - 2, map.size());
assertFalse(map.containsKey(getSampleKeys()[1]));
}
private static abstract class MockServletRequestImpl implements ServletRequest {
Map<String, Object> attributes;
public Object getAttribute(String name) {
return attributes.get(name);
}
public Enumeration getAttributeNames() {
return Collections.enumeration(attributes.keySet());
}
public void setAttribute(String name, Object o) {
if (o == null) {
attributes.remove(name);
}
else {
attributes.put(name, o);
}
}
public void removeAttribute(String name) {
attributes.remove(name);
}
}
}

131
servlet/src/test/java/com/twelvemonkeys/servlet/ServletConfigExceptionTest.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.io.NullOutputStream;
import org.junit.Test;
import java.io.PrintWriter;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
/**
* ServletConfigExceptionTestCase
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/ServletConfigExceptionTestCase.java#2 $
*/
public class ServletConfigExceptionTest {
@Test
public void testThrowCatchPrintStacktrace() {
try {
throw new ServletConfigException("FooBar!");
}
catch (ServletConfigException e) {
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
@Test
public void testThrowCatchGetNoCause() {
try {
throw new ServletConfigException("FooBar!");
}
catch (ServletConfigException e) {
assertNull(e.getRootCause()); // Old API
assertNull(e.getCause());
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
@Test
public void testThrowCatchInitCauseNull() {
try {
ServletConfigException e = new ServletConfigException("FooBar!");
e.initCause(null);
throw e;
}
catch (ServletConfigException e) {
assertNull(e.getRootCause()); // Old API
assertNull(e.getCause());
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
@Test
public void testThrowCatchInitCause() {
//noinspection ThrowableInstanceNeverThrown
Exception cause = new Exception();
try {
ServletConfigException exception = new ServletConfigException("FooBar!");
exception.initCause(cause);
throw exception;
}
catch (ServletConfigException e) {
// NOTE: We don't know how the superclass is implemented, so we assume nothing here
//assertEquals(null, e.getRootCause()); // Old API
assertSame(cause, e.getCause());
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
@Test
public void testThrowCatchGetNullCause() {
try {
throw new ServletConfigException("FooBar!", null);
}
catch (ServletConfigException e) {
assertNull(e.getRootCause()); // Old API
assertNull(e.getCause());
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
@Test
public void testThrowCatchGetCause() {
IllegalStateException cause = new IllegalStateException();
try {
throw new ServletConfigException("FooBar caused by stupid API!", cause);
}
catch (ServletConfigException e) {
assertSame(cause, e.getRootCause()); // Old API
assertSame(cause, e.getCause());
e.printStackTrace(new PrintWriter(new NullOutputStream()));
}
}
}

229
servlet/src/test/java/com/twelvemonkeys/servlet/ServletConfigMapAdapterTest.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.MapAbstractTest;
import org.junit.runner.RunWith;
import org.junit.runners.Suite;
import javax.servlet.*;
import java.io.InputStream;
import java.io.Serializable;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.*;
/**
* ServletConfigMapAdapterTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/ServletConfigMapAdapterTestCase.java#3 $
*/
@RunWith(Suite.class)
@Suite.SuiteClasses({AbstractServletConfigMapAdapterTest.ServletConfigMapTest.class, AbstractServletConfigMapAdapterTest.FilterConfigMapTest.class, AbstractServletConfigMapAdapterTest.ServletContextMapTest.class})
public final class ServletConfigMapAdapterTest {
}
abstract class AbstractServletConfigMapAdapterTest extends MapAbstractTest {
public boolean isPutAddSupported() {
return false;
}
public boolean isPutChangeSupported() {
return false;
}
public boolean isRemoveSupported() {
return false;
}
public boolean isSetValueSupported() {
return false;
}
private static class TestConfig implements ServletConfig, FilterConfig, ServletContext, Serializable, Cloneable {
Map map = new HashMap();
public String getServletName() {
return "dummy"; // Not needed for this test
}
public String getFilterName() {
return getServletName();
}
public String getServletContextName() {
return getServletName();
}
public ServletContext getServletContext() {
throw new UnsupportedOperationException("Method getSerlvetContext not implemented");
}
public String getInitParameter(String s) {
return (String) map.get(s);
}
public Enumeration getInitParameterNames() {
//noinspection unchecked
return Collections.enumeration(map.keySet());
}
public ServletContext getContext(String uripath) {
throw new UnsupportedOperationException("Method getContext not implemented");
}
public int getMajorVersion() {
throw new UnsupportedOperationException("Method getMajorVersion not implemented");
}
public int getMinorVersion() {
throw new UnsupportedOperationException("Method getMinorVersion not implemented");
}
public String getMimeType(String file) {
throw new UnsupportedOperationException("Method getMimeType not implemented");
}
public Set getResourcePaths(String path) {
throw new UnsupportedOperationException("Method getResourcePaths not implemented");
}
public URL getResource(String path) throws MalformedURLException {
throw new UnsupportedOperationException("Method getResource not implemented");
}
public InputStream getResourceAsStream(String path) {
throw new UnsupportedOperationException("Method getResourceAsStream not implemented");
}
public RequestDispatcher getRequestDispatcher(String path) {
throw new UnsupportedOperationException("Method getRequestDispatcher not implemented");
}
public RequestDispatcher getNamedDispatcher(String name) {
throw new UnsupportedOperationException("Method getNamedDispatcher not implemented");
}
public Servlet getServlet(String name) throws ServletException {
throw new UnsupportedOperationException("Method getServlet not implemented");
}
public Enumeration getServlets() {
throw new UnsupportedOperationException("Method getServlets not implemented");
}
public Enumeration getServletNames() {
throw new UnsupportedOperationException("Method getServletNames not implemented");
}
public void log(String msg) {
throw new UnsupportedOperationException("Method log not implemented");
}
public void log(Exception exception, String msg) {
throw new UnsupportedOperationException("Method log not implemented");
}
public void log(String message, Throwable throwable) {
throw new UnsupportedOperationException("Method log not implemented");
}
public String getRealPath(String path) {
throw new UnsupportedOperationException("Method getRealPath not implemented");
}
public String getServerInfo() {
throw new UnsupportedOperationException("Method getServerInfo not implemented");
}
public Object getAttribute(String name) {
throw new UnsupportedOperationException("Method getAttribute not implemented");
}
public Enumeration getAttributeNames() {
throw new UnsupportedOperationException("Method getAttributeNames not implemented");
}
public void setAttribute(String name, Object object) {
throw new UnsupportedOperationException("Method setAttribute not implemented");
}
public void removeAttribute(String name) {
throw new UnsupportedOperationException("Method removeAttribute not implemented");
}
}
public static final class ServletConfigMapTest extends AbstractServletConfigMapAdapterTest {
public Map makeEmptyMap() {
ServletConfig config = new TestConfig();
return new ServletConfigMapAdapter(config);
}
public Map makeFullMap() {
ServletConfig config = new TestConfig();
addSampleMappings(((TestConfig) config).map);
return new ServletConfigMapAdapter(config);
}
}
public static final class FilterConfigMapTest extends AbstractServletConfigMapAdapterTest {
public Map makeEmptyMap() {
FilterConfig config = new TestConfig();
return new ServletConfigMapAdapter(config);
}
public Map makeFullMap() {
FilterConfig config = new TestConfig();
addSampleMappings(((TestConfig) config).map);
return new ServletConfigMapAdapter(config);
}
}
public static final class ServletContextMapTest extends AbstractServletConfigMapAdapterTest {
public Map makeEmptyMap() {
ServletContext config = new TestConfig();
return new ServletConfigMapAdapter(config);
}
public Map makeFullMap() {
FilterConfig config = new TestConfig();
addSampleMappings(((TestConfig) config).map);
return new ServletConfigMapAdapter(config);
}
}
}

375
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import org.junit.Test;
import javax.servlet.Filter;
import javax.servlet.FilterConfig;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import java.util.Arrays;
import java.util.Collections;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.*;
/**
* ServletConfiguratorTestCase
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haraldk$
* @version $Id: ServletConfiguratorTestCase.java,v 1.0 May 2, 2010 3:08:33 PM haraldk Exp$
*/
public class ServletConfiguratorTest {
// TODO: Test error conditions:
// - Missing name = ... or non-bean conforming method
// - Non-accessible? How..?
// - Missing required value
// TODO: Clean up tests to test only one thing at a time
// - Public method
// - Public method with override
// - Public method overridden without annotation
// - Protected method
// - Protected method with override
// - Protected method overridden without annotation
// - Package protected method
// - Package protected method with override
// - Package protected method overridden without annotation
// - Private method
// - Multiple private methods with same signature (should invoke all, as private methods can't be overridden)
@Test
public void testConfigureAnnotatedServlet() throws ServletConfigException {
AnnotatedServlet servlet = mock(AnnotatedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("x", "foo", "bar")));
when(config.getInitParameter("x")).thenReturn("99");
when(config.getInitParameter("foo")).thenReturn("Foo");
when(config.getInitParameter("bar")).thenReturn("-1, 2, 0, 42");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setX(99);
verify(servlet, times(1)).setFoo("Foo");
verify(servlet, times(1)).configTheBar(-1, 2, 0, 42);
}
@Test
public void testConfigureAnnotatedFilter() throws ServletConfigException {
AnnotatedServlet servlet = mock(AnnotatedServlet.class);
FilterConfig config = mock(FilterConfig.class);
when(config.getFilterName()).thenReturn("FooFilter");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("x", "foo", "bar")));
when(config.getInitParameter("x")).thenReturn("99");
when(config.getInitParameter("foo")).thenReturn("Foo");
when(config.getInitParameter("bar")).thenReturn("-1, 2, 0, 42");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setX(99);
verify(servlet, times(1)).setFoo("Foo");
verify(servlet, times(1)).configTheBar(-1, 2, 0, 42);
}
@Test
public void testConfigurePrivateMethod() throws ServletConfigException {
AnnotatedServlet servlet = mock(AnnotatedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.singletonList("private")));
when(config.getInitParameter("private")).thenReturn("99");
ServletConfigurator.configure(servlet, config);
// Verify
assertEquals(servlet.priv, "99");
}
@Test
public void testConfigurePrivateShadowedMethod() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam(name = "package-private")
abstract void setPrivate(String priv);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.singletonList("private")));
when(config.getInitParameter("private")).thenReturn("private");
when(config.getInitParameter("package-private")).thenReturn("package");
ServletConfigurator.configure(servlet, config);
// Verify
assertEquals(servlet.priv, "private");
verify(servlet, times(1)).setPrivate("package");
}
@Test
public void testConfigureSubclassedServlet() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam(name = "flag")
abstract void configureMeToo(boolean flag);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("x", "foo", "bar", "flag")));
when(config.getInitParameter("x")).thenReturn("99");
when(config.getInitParameter("foo")).thenReturn("Foo");
when(config.getInitParameter("bar")).thenReturn("-1, 2, 0, 42");
when(config.getInitParameter("flag")).thenReturn("true");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setX(99);
verify(servlet, times(1)).setFoo("Foo");
verify(servlet, times(1)).configTheBar(-1, 2, 0, 42);
verify(servlet, times(1)).configureMeToo(true);
}
@Test
public void testConfigureAnnotatedServletWithLispStyle() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam(name = "the-explicit-x")
abstract public void setExplicitX(int x);
@InitParam
abstract public void setTheOtherX(int x);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("the-explicit-x", "the-other-x")));
when(config.getInitParameter("the-explicit-x")).thenReturn("-1");
when(config.getInitParameter("the-other-x")).thenReturn("42");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setExplicitX(-1);
verify(servlet, times(1)).setTheOtherX(42);
}
@Test
public void testConfigureSubclassedServletWithOverride() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@Override
@InitParam(name = "y")
public void setX(int x) {
}
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("x", "y")));
when(config.getInitParameter("x")).thenReturn("99");
when(config.getInitParameter("y")).thenReturn("-66");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setX(-66);
verify(servlet, times(1)).setX(anyInt()); // We don't want multiple invocations, only the overridden method
}
@Test
public void testConfigureSubclassedServletWithOverrideNoParam() throws ServletConfigException {
// NOTE: We must allow overriding the methods without annotation present, in order to allow CGLib/proxies of the class...
abstract class SubclassedServlet extends AnnotatedServlet {
@Override
@InitParam(name = "<THIS PARAMETER DOES NOT EXIST>")
public void setX(int x) {
}
@Override
public void setFoo(String foo) {
}
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Arrays.asList("x", "foo")));
when(config.getInitParameter("x")).thenReturn("99");
when(config.getInitParameter("foo")).thenReturn("Foo");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, never()).setX(anyInt());
verify(servlet, times(1)).setFoo("Foo");
verify(servlet, times(1)).setFoo(anyString()); // We don't want multiple invocations
}
// Test interface
@Test
public void testConfigureServletWithInterface() throws ServletConfigException {
abstract class InterfacedServlet implements Servlet, Annotated {
}
InterfacedServlet servlet = mock(InterfacedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.singletonList("foo")));
when(config.getInitParameter("foo")).thenReturn("Foo");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).annotated("Foo");
}
// TODO: Test override/shadow of package protected method outside package
@Test
public void testRequiredParameter() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam(required = true)
abstract void setRequired(String value);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.singletonList("required")));
when(config.getInitParameter("required")).thenReturn("the required value");
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setRequired("the required value");
verify(servlet, times(1)).setRequired(anyString()); // We don't want multiple invocations
}
@Test
public void testMissingParameter() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam()
abstract void setNonRequired(String value);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.emptyList()));
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, never()).setNonRequired(anyString()); // Simply not configured
}
@Test(expected = ServletConfigException.class)
public void testMissingRequiredParameter() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@Override
@InitParam(required = true)
protected abstract void setFoo(String value);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.emptyList()));
ServletConfigurator.configure(servlet, config); // Should throw exception
}
@Test
public void testMissingParameterDefaultValue() throws ServletConfigException {
abstract class SubclassedServlet extends AnnotatedServlet {
@InitParam(defaultValue = "1, 2, 3")
abstract void setNonRequired(int[] value);
}
SubclassedServlet servlet = mock(SubclassedServlet.class);
ServletConfig config = mock(ServletConfig.class);
when(config.getServletName()).thenReturn("FooServlet");
when(config.getInitParameterNames()).thenReturn(Collections.enumeration(Collections.emptyList()));
ServletConfigurator.configure(servlet, config);
// Verify
verify(servlet, times(1)).setNonRequired(new int[] {1, 2, 3});
verify(servlet, times(1)).setNonRequired((int[]) any());
}
public interface Annotated {
@InitParam(name = "foo")
void annotated(String an);
}
public abstract class AnnotatedServlet implements Servlet, Filter {
String priv;
// Implicit name "x"
@InitParam
public abstract void setX(int x);
// Implicit name "foo"
@InitParam
protected abstract void setFoo(String foo);
@InitParam(name = "bar")
abstract void configTheBar(int... bar);
@InitParam(name = "private")
private void setPrivate(String priv) {
this.priv = priv;
}
}
}

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servlet/src/test/java/com/twelvemonkeys/servlet/ServletHeadersMapAdapterTest.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.MapAbstractTest;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import javax.servlet.http.HttpServletRequest;
import java.util.*;
import static org.mockito.Mockito.when;
/**
* ServletConfigMapAdapterTest
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: ServletHeadersMapAdapterTest.java#1 $
*/
public class ServletHeadersMapAdapterTest extends MapAbstractTest {
private static final List<String> HEADER_VALUE_ETAG = Collections.singletonList("\"1234567890abcdef\"");
private static final List<String> HEADER_VALUE_DATE = Collections.singletonList(new Date().toString());
private static final List<String> HEADER_VALUE_FOO = Arrays.asList("one", "two");
public boolean isPutAddSupported() {
return false;
}
public boolean isPutChangeSupported() {
return false;
}
public boolean isRemoveSupported() {
return false;
}
public boolean isSetValueSupported() {
return false;
}
@Override
public boolean isTestSerialization() {
return false;
}
public Map makeEmptyMap() {
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
when(request.getHeaderNames()).thenAnswer(returnEnumeration(Collections.emptyList()));
return new ServletHeadersMapAdapter(request);
}
@Override
public Map makeFullMap() {
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
when(request.getHeaderNames()).thenAnswer(returnEnumeration(Arrays.asList(getSampleKeys())));
when(request.getHeaders("Date")).thenAnswer(returnEnumeration(HEADER_VALUE_DATE));
when(request.getHeaders("ETag")).thenAnswer(returnEnumeration(HEADER_VALUE_ETAG));
when(request.getHeaders("X-Foo")).thenAnswer(returnEnumeration(HEADER_VALUE_FOO));
return new ServletHeadersMapAdapter(request);
}
@Override
public Object[] getSampleKeys() {
return new String[] {"Date", "ETag", "X-Foo"};
}
@Override
public Object[] getSampleValues() {
return new Object[] {HEADER_VALUE_DATE, HEADER_VALUE_ETAG, HEADER_VALUE_FOO};
}
@Override
public Object[] getNewSampleValues() {
// Needs to be same length but different values
return new Object[3];
}
protected static <T> ReturnNewEnumeration<T> returnEnumeration(final Collection<T> collection) {
return new ReturnNewEnumeration<>(collection);
}
private static class ReturnNewEnumeration<T> implements Answer<Enumeration<T>> {
private final Collection<T> collection;
private ReturnNewEnumeration(final Collection<T> collection) {
this.collection = collection;
}
public Enumeration<T> answer(InvocationOnMock invocation) throws Throwable {
return Collections.enumeration(collection);
}
}
}

126
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.util.MapAbstractTest;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import javax.servlet.http.HttpServletRequest;
import java.util.*;
import static org.mockito.Mockito.when;
/**
* ServletConfigMapAdapterTest
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/ServletParametersMapAdapterTest.java#1 $
*/
public class ServletParametersMapAdapterTest extends MapAbstractTest {
private static final List<String> PARAM_VALUE_ETAG = Collections.singletonList("\"1234567890abcdef\"");
private static final List<String> PARAM_VALUE_DATE = Collections.singletonList(new Date().toString());
private static final List<String> PARAM_VALUE_FOO = Arrays.asList("one", "two");
public boolean isPutAddSupported() {
return false;
}
public boolean isPutChangeSupported() {
return false;
}
public boolean isRemoveSupported() {
return false;
}
public boolean isSetValueSupported() {
return false;
}
@Override
public boolean isTestSerialization() {
return false;
}
public Map makeEmptyMap() {
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
when(request.getParameterNames()).thenAnswer(returnEnumeration(Collections.emptyList()));
return new ServletParametersMapAdapter(request);
}
@Override
public Map makeFullMap() {
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
when(request.getParameterNames()).thenAnswer(returnEnumeration(Arrays.asList("tag", "date", "foo")));
when(request.getParameterValues("date")).thenReturn(PARAM_VALUE_DATE.toArray(new String[PARAM_VALUE_DATE.size()]));
when(request.getParameterValues("tag")).thenReturn(PARAM_VALUE_ETAG.toArray(new String[PARAM_VALUE_ETAG.size()]));
when(request.getParameterValues("foo")).thenReturn(PARAM_VALUE_FOO.toArray(new String[PARAM_VALUE_FOO.size()]));
return new ServletParametersMapAdapter(request);
}
@Override
public Object[] getSampleKeys() {
return new String[] {"date", "tag", "foo"};
}
@Override
public Object[] getSampleValues() {
return new Object[] {PARAM_VALUE_DATE, PARAM_VALUE_ETAG, PARAM_VALUE_FOO};
}
@Override
public Object[] getNewSampleValues() {
// Needs to be same length but different values
return new Object[3];
}
protected static <T> ReturnNewEnumeration<T> returnEnumeration(final Collection<T> collection) {
return new ReturnNewEnumeration<>(collection);
}
private static class ReturnNewEnumeration<T> implements Answer<Enumeration<T>> {
private final Collection<T> collection;
private ReturnNewEnumeration(final Collection<T> collection) {
this.collection = collection;
}
public Enumeration<T> answer(InvocationOnMock invocation) throws Throwable {
return Collections.enumeration(collection);
}
}
}

53
servlet/src/test/java/com/twelvemonkeys/servlet/ServletResponseAbsrtactTest.java
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/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet;
import com.twelvemonkeys.lang.ObjectAbstractTest;
import javax.servlet.ServletResponse;
/**
* ServletResponseAbsrtactTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/ServletResponseAbsrtactTestCase.java#1 $
*/
public abstract class ServletResponseAbsrtactTest extends ObjectAbstractTest {
protected Object makeObject() {
return makeServletResponse();
}
protected abstract ServletResponse makeServletResponse();
// TODO: Implement
}

115
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package com.twelvemonkeys.servlet;
import com.twelvemonkeys.io.OutputStreamAbstractTest;
import org.junit.Test;
import javax.servlet.Filter;
import javax.servlet.ServletResponse;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import static org.junit.Assert.assertEquals;
/**
* TrimWhiteSpaceFilterTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-servlet/src/test/java/com/twelvemonkeys/servlet/TrimWhiteSpaceFilterTestCase.java#1 $
*/
public class TrimWhiteSpaceFilterTest extends FilterAbstractTest {
protected Filter makeFilter() {
return new TrimWhiteSpaceFilter();
}
public static final class TrimWSFilterOutputStreamTest extends OutputStreamAbstractTest {
protected OutputStream makeObject() {
// NOTE: ByteArrayOutputStream does not implement flush or close...
return makeOutputStream(new ByteArrayOutputStream(16));
}
protected OutputStream makeOutputStream(OutputStream pWrapped) {
return new TrimWhiteSpaceFilter.TrimWSFilterOutputStream(pWrapped);
}
@Test
public void testTrimWSOnlyWS() throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream(64);
OutputStream trim = makeOutputStream(out);
String input = " \n\n\t \t" + (char) 0x0a + ' ' + (char) 0x0d + "\r ";
trim.write(input.getBytes());
trim.flush();
trim.close();
assertEquals("Should be trimmed", "\"\"", '"' + new String(out.toByteArray()) + '"');
}
@Test
public void testTrimWSLeading() throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream(64);
OutputStream trim = makeOutputStream(out);
byte[] input = " \n<?xml version=\"1.0\"?>\n\t <not-really-well-formed/> \t".getBytes();
String trimmed = "<?xml version=\"1.0\"?>\n<not-really-well-formed/> "; // TODO: This is pr spec (the trailing space). But probably quite stupid...
trim.write(input);
trim.flush();
trim.close();
assertEquals("Should be trimmed", '"' + trimmed + '"', '"' + new String(out.toByteArray()) + '"');
}
@Test
public void testTrimWSOffsetLength() throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream(64);
OutputStream trim = makeOutputStream(out);
// Kindly generated by http://lipsum.org/ :-)
byte[] input = (" \n\tLorem ipsum dolor sit amet, consectetuer adipiscing elit.\n\r\n\r" +
"Etiam arcu neque, \n\rmalesuada blandit,\t\n\r\n\r\n\n\n\r\n\r\r\n\n\t rutrum quis, molestie at, diam.\n" +
" Nulla elementum elementum eros.\n \t\t\n\r" +
"Ut rhoncus, turpis in pellentesque volutpat, sapien sem accumsan augue, a scelerisque nibh erat vel magna.\n" +
" Phasellus diam orci, dignissim et, gravida vitae, venenatis eu, elit.\n" +
"\t\t\tSuspendisse dictum enim at nisl. Integer magna erat, viverra sit amet, consectetuer nec, accumsan ut, mi.\n" +
"\n\r\r\r\n\rNunc ultricies \n\n\n consectetuer mauris. " +
"Nulla lectus mauris, viverra ac, pulvinar a, commodo quis, nulla.\n " +
"Ut eget nulla. In est dolor, convallis \t non, tincidunt \tvestibulum, porttitor et, eros.\n " +
"\t\t \t \n\rDonec vehicula ultrices nisl.").getBytes();
String trimmed = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit.\n" +
"Etiam arcu neque, malesuada blandit,\trutrum quis, molestie at, diam.\n" +
"Nulla elementum elementum eros.\n" +
"Ut rhoncus, turpis in pellentesque volutpat, sapien sem accumsan augue, a scelerisque nibh erat vel magna.\n" +
"Phasellus diam orci, dignissim et, gravida vitae, venenatis eu, elit.\n" +
"Suspendisse dictum enim at nisl. Integer magna erat, viverra sit amet, consectetuer nec, accumsan ut, mi.\n" +
"Nunc ultricies consectetuer mauris. Nulla lectus mauris, viverra ac, pulvinar a, commodo quis, nulla.\n" +
"Ut eget nulla. In est dolor, convallis non, tincidunt vestibulum, porttitor et, eros.\n" +
"Donec vehicula ultrices nisl.";
int chunkLenght = 5;
int bytesLeft = input.length;
while (bytesLeft > chunkLenght) {
trim.write(input, input.length - bytesLeft, chunkLenght);
bytesLeft -= chunkLenght;
}
trim.write(input, input.length - bytesLeft, bytesLeft);
trim.flush();
trim.close();
assertEquals("Should be trimmed", '"' + trimmed + '"', '"' + new String(out.toByteArray()) + '"');
}
// TODO: Test that we DON'T remove too much...
}
public static final class TrimWSServletResponseWrapperTest extends ServletResponseAbsrtactTest {
protected ServletResponse makeServletResponse() {
return new TrimWhiteSpaceFilter.TrimWSServletResponseWrapper(new MockServletResponse());
}
}
}

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/*
* Copyright (c) 2011, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image;
import com.twelvemonkeys.io.FileUtil;
import com.twelvemonkeys.servlet.OutputStreamAdapter;
import com.twelvemonkeys.util.StringTokenIterator;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
/**
* ImageFilterTest
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haraldk$
* @version $Id: ImageFilterTest.java,v 1.0 07.04.11 14.14 haraldk Exp$
*/
public class ImageFilterTest {
@Test
public void passThroughIfNotTrigger() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter() {
@Override
protected boolean trigger(ServletRequest pRequest) {
return false;
}
};
filter.init(filterConfig);
// Request/response setup
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
FilterChain chain = mock(FilterChain.class);
// Execute
filter.doFilter(request, response, chain);
// Verifications
verify(chain).doFilter(request, response);
verify(response, never()).getOutputStream();
verify(response, never()).getWriter();
}
@Test
public void normalFilter() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ServletOutputStream out = spy(new OutputStreamAdapter(stream));
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
when(response.getOutputStream()).thenReturn(out);
FilterChain chain = mock(FilterChain.class);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) throws Throwable {
HttpServletResponse response = (HttpServletResponse) invocation.getArguments()[1];
response.setContentType("image/png");
response.setContentLength(104417);
InputStream stream = getClass().getResourceAsStream("/com/twelvemonkeys/servlet/image/12monkeys-splash.png");
assertNotNull("Missing test resource", stream);
FileUtil.copy(stream, response.getOutputStream());
return null;
}
}).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
filter.doFilter(request, response, chain);
// Verifications
int length = stream.size();
verify(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
verify(response).setContentType("image/png");
verify(response, atMost(1)).setContentLength(length); // setContentLength not implemented, avoid future bugs
verify(out, atLeastOnce()).flush();
// Extra verification here, until we come up with something better
assertTrue(
String.format("Unlikely length for PNG (please run manual check): %s bytes, expected about 85000 bytes", length),
length >= 60000 && length <= 120000
);
}
@Test
public void filterNoContent() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
ServletOutputStream out = mock(ServletOutputStream.class);
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
when(response.getOutputStream()).thenReturn(out);
FilterChain chain = mock(FilterChain.class);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) throws Throwable {
HttpServletResponse response = (HttpServletResponse) invocation.getArguments()[1];
response.setContentType("image/x-imaginary");
return null;
}
}).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
filter.doFilter(request, response, chain);
// Verifications
verify(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
verify(response).setContentType("image/x-imaginary");
verify(out, atLeastOnce()).flush();
}
@Test
public void triggerWhenTriggerParamsNull() throws ServletException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Execute/Verifications
assertTrue(filter.trigger(mock(HttpServletRequest.class)));
}
@Test
public void triggerWithTriggerParams() throws ServletException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("triggerParams"));
when(filterConfig.getInitParameter("triggerParams")).thenReturn("foo");
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
HttpServletRequest request = mock(HttpServletRequest.class);
when(request.getParameter("foo")).thenReturn("doit");
// Execute/Verifications
assertTrue(filter.trigger(request));
}
@Test
public void dontTriggerWithoutTriggerParams() throws ServletException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("triggerParams"));
when(filterConfig.getInitParameter("triggerParams")).thenReturn("foo");
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
HttpServletRequest request = mock(HttpServletRequest.class);
// Execute/Verifications
assertFalse(filter.trigger(request));
}
@Test
public void testChaining() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig fooConfig = mock(FilterConfig.class);
when(fooConfig.getFilterName()).thenReturn("foo");
when(fooConfig.getServletContext()).thenReturn(context);
when(fooConfig.getInitParameterNames()).thenReturn(new StringTokenIterator(""));
final AtomicReference<BufferedImage> imageRef = new AtomicReference<BufferedImage>();
final AtomicReference<ImageServletResponse> responseRef = new AtomicReference<ImageServletResponse>();
DummyFilter fooFilter = new DummyFilter() {
@Override
protected RenderedImage doFilter(BufferedImage image, ServletRequest request, ImageServletResponse response) throws IOException {
// NOTE: Post-filtering, this method is run after barFilter.doFilter
assertEquals(imageRef.get(), image);
assertEquals(responseRef.get(), response);
return image;
}
};
fooFilter.init(fooConfig);
FilterConfig barConfig = mock(FilterConfig.class);
when(barConfig.getFilterName()).thenReturn("bar");
when(barConfig.getServletContext()).thenReturn(context);
when(barConfig.getInitParameterNames()).thenReturn(new StringTokenIterator(""));
final DummyFilter barFilter = new DummyFilter() {
@Override
protected RenderedImage doFilter(BufferedImage image, ServletRequest request, ImageServletResponse response) throws IOException {
// NOTE: Post-filtering, this method is run before fooFilter.doFilter
Graphics2D graphics = image.createGraphics();
try {
graphics.drawRect(10, 10, 100, 100);
}
finally {
graphics.dispose();
}
// Store references for later, make sure this is first and only set.
assertTrue(imageRef.compareAndSet(null, image));
assertTrue(responseRef.compareAndSet(null, response));
return image;
}
};
barFilter.init(barConfig);
// Request/response setup
ServletOutputStream out = mock(ServletOutputStream.class);
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
when(response.getOutputStream()).thenReturn(out);
FilterChain chain = mock(FilterChain.class);
final AtomicBoolean first = new AtomicBoolean(false);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) throws Throwable {
HttpServletRequest request = (HttpServletRequest) invocation.getArguments()[0];
HttpServletResponse response = (HttpServletResponse) invocation.getArguments()[1];
// Fake chaining here..
if (first.compareAndSet(false, true)) {
barFilter.doFilter(request, response, (FilterChain) invocation.getMock());
return null;
}
// Otherwise, fake servlet/file response
response.setContentType("image/gif");
InputStream stream = getClass().getResourceAsStream("/com/twelvemonkeys/servlet/image/tux.gif");
assertNotNull("Missing test resource", stream);
FileUtil.copy(stream, response.getOutputStream());
return null;
}
}).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
fooFilter.doFilter(request, response, chain);
// Verifications
verify(chain, times(2)).doFilter(any(ServletRequest.class), any(ImageServletResponse.class));
verify(response).setContentType("image/gif");
verify(out, atLeastOnce()).flush();
// NOTE:
// We verify that the image is the same in both ImageFilter implementations, to make sure the image is only
// decoded once, then encoded once.
// But this test is not necessarily 100% reliable...
}
@Test(expected = ServletException.class)
public void passThroughIfNotTriggerException() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter() {
@Override
protected boolean trigger(ServletRequest pRequest) {
return false;
}
};
filter.init(filterConfig);
// Request/response setup
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
FilterChain chain = mock(FilterChain.class);
doThrow(new ServletException("Something went terribly wrong. Take shelter.")).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
try {
filter.doFilter(request, response, chain);
}
finally {
// Verifications
verify(chain).doFilter(request, response);
verify(response, never()).getOutputStream();
verify(response, never()).getWriter();
}
}
@Test(expected = ServletException.class)
public void normalFilterException() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ServletOutputStream out = spy(new OutputStreamAdapter(stream));
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
when(response.getOutputStream()).thenReturn(out);
FilterChain chain = mock(FilterChain.class);
doThrow(new ServletException("Something went terribly wrong. Take shelter.")).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
try {
filter.doFilter(request, response, chain);
}
finally {
// Verifications
verify(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
}
}
@Test
public void passThroughIfNotTriggerSendError() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter() {
@Override
protected boolean trigger(ServletRequest pRequest) {
return false;
}
};
filter.init(filterConfig);
// Request/response setup
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
FilterChain chain = mock(FilterChain.class);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) throws Throwable {
HttpServletResponse response = (HttpServletResponse) invocation.getArguments()[1];
response.sendError(HttpServletResponse.SC_FORBIDDEN, "I'm afraid I can't do that.");
return null;
}
}).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
filter.doFilter(request, response, chain);
// Verifications
verify(chain).doFilter(request, response);
verify(response, never()).getOutputStream();
verify(response, never()).getWriter();
}
@Test
public void normalFilterSendError() throws ServletException, IOException {
// Filter init & setup
ServletContext context = mock(ServletContext.class);
FilterConfig filterConfig = mock(FilterConfig.class);
when(filterConfig.getFilterName()).thenReturn("dummy");
when(filterConfig.getServletContext()).thenReturn(context);
when(filterConfig.getInitParameterNames()).thenReturn(new StringTokenIterator("foo, bar"));
DummyFilter filter = new DummyFilter();
filter.init(filterConfig);
// Request/response setup
ByteArrayOutputStream stream = new ByteArrayOutputStream();
ServletOutputStream out = spy(new OutputStreamAdapter(stream));
HttpServletRequest request = mock(HttpServletRequest.class);
HttpServletResponse response = mock(HttpServletResponse.class);
when(response.getOutputStream()).thenReturn(out);
FilterChain chain = mock(FilterChain.class);
doAnswer(new Answer<Void>() {
public Void answer(InvocationOnMock invocation) throws Throwable {
HttpServletResponse response = (HttpServletResponse) invocation.getArguments()[1];
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "I've just picked up a fault in the AE35 unit.");
return null;
}
}).when(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
// Execute
filter.doFilter(request, response, chain);
// Verifications
verify(chain).doFilter(any(ServletRequest.class), any(ServletResponse.class));
verify(response, atMost(1)).setContentLength(stream.size()); // setContentLength not implemented, avoid future bugs
verify(out, atLeastOnce()).flush();
}
private static class DummyFilter extends ImageFilter {
@Override
protected RenderedImage doFilter(BufferedImage image, ServletRequest request, ImageServletResponse response) throws IOException {
return image;
}
}
}

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365
servlet/src/test/java/com/twelvemonkeys/servlet/image/aoi/AreaOfInterestTest.java
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@@ -1,365 +0,0 @@
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.servlet.image.aoi;
import org.junit.Test;
import java.awt.*;
import static org.junit.Assert.assertEquals;
/**
* @author <a href="mailto:erlend@escenic.com">Erlend Hamnaberg</a>
* @version $Revision: $
*/
public class AreaOfInterestTest {
private static final Dimension SQUARE_200_200 = new Dimension(200, 200);
private static final Dimension PORTRAIT_100_200 = new Dimension(100, 200);
private static final Dimension LANDSCAPE_200_100 = new Dimension(200, 100);
private static final Dimension SQUARE_100_100 = new Dimension(100, 100);
// -----------------------------------------------------------------------------------------------------------------
// Absolute AOI
// -----------------------------------------------------------------------------------------------------------------
@Test
public void testGetAOIAbsolute() {
assertEquals(new Rectangle(10, 10, 100, 100), new DefaultAreaOfInterest(SQUARE_200_200).getAOI(10, 10, 100, 100));
}
@Test
public void testGetAOIAbsoluteOverflowX() {
assertEquals(new Rectangle(10, 10, 90, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(10, 10, 100, 100));
}
@Test
public void testGetAOIAbsoluteOverflowW() {
assertEquals(new Rectangle(0, 10, 100, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(0, 10, 110, 100));
}
@Test
public void testGetAOIAbsoluteOverflowY() {
assertEquals(new Rectangle(10, 10, 100, 90), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(10, 10, 100, 100));
}
@Test
public void testGetAOIAbsoluteOverflowH() {
assertEquals(new Rectangle(10, 0, 100, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(10, 0, 100, 110));
}
// -----------------------------------------------------------------------------------------------------------------
// Uniform AOI centered
// -----------------------------------------------------------------------------------------------------------------
@Test
public void testGetAOIUniformCenteredS2SUp() {
assertEquals(new Rectangle(0, 0, 100, 100), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 333, 333));
}
@Test
public void testGetAOIUniformCenteredS2SDown() {
assertEquals(new Rectangle(0, 0, 100, 100), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 33, 33));
}
@Test
public void testGetAOIUniformCenteredS2SNormalized() {
assertEquals(new Rectangle(0, 0, 100, 100), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOIUniformCenteredS2W() {
assertEquals(new Rectangle(0, 25, 100, 50), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOIUniformCenteredS2WNormalized() {
assertEquals(new Rectangle(0, 25, 100, 50), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOIUniformCenteredS2N() {
assertEquals(new Rectangle(25, 0, 50, 100), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 200));
}
@Test
public void testGetAOIUniformCenteredS2NNormalized() {
assertEquals(new Rectangle(25, 0, 50, 100), new UniformAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 50, 100));
}
@Test
public void testGetAOIUniformCenteredW2S() {
assertEquals(new Rectangle(50, 0, 100, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 333, 333));
}
@Test
public void testGetAOIUniformCenteredW2SNormalized() {
assertEquals(new Rectangle(50, 0, 100, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOIUniformCenteredW2W() {
assertEquals(new Rectangle(0, 0, 200, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOIUniformCenteredW2WW() {
assertEquals(new Rectangle(0, 25, 200, 50), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 200, 50));
}
@Test
public void testGetAOIUniformCenteredW2WN() {
assertEquals(new Rectangle(25, 0, 150, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 75, 50));
}
@Test
public void testGetAOIUniformCenteredW2WNNormalized() {
assertEquals(new Rectangle(25, 0, 150, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 150, 100));
}
@Test
public void testGetAOIUniformCenteredW2WNormalized() {
assertEquals(new Rectangle(0, 0, 200, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOIUniformCenteredW2N() {
assertEquals(new Rectangle(75, 0, 50, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 200));
}
@Test
public void testGetAOIUniformCenteredW2NNormalized() {
assertEquals(new Rectangle(75, 0, 50, 100), new UniformAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 50, 100));
}
@Test
public void testGetAOIUniformCenteredN2S() {
assertEquals(new Rectangle(0, 50, 100, 100), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 333, 333));
}
@Test
public void testGetAOIUniformCenteredN2SNormalized() {
assertEquals(new Rectangle(0, 50, 100, 100), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOIUniformCenteredN2W() {
assertEquals(new Rectangle(0, 75, 100, 50), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOIUniformCenteredN2WNormalized() {
assertEquals(new Rectangle(0, 75, 100, 50), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOIUniformCenteredN2N() {
assertEquals(new Rectangle(0, 0, 100, 200), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 50, 100));
}
@Test
public void testGetAOIUniformCenteredN2NN() {
assertEquals(new Rectangle(25, 0, 50, 200), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 25, 100));
}
@Test
public void testGetAOIUniformCenteredN2NW() {
assertEquals(new Rectangle(0, 33, 100, 133), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 75, 100));
}
@Test
public void testGetAOIUniformCenteredN2NWNormalized() {
assertEquals(new Rectangle(0, 37, 100, 125), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 125));
}
@Test
public void testGetAOIUniformCenteredN2NNormalized() {
assertEquals(new Rectangle(0, 0, 100, 200), new UniformAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 200));
}
// -----------------------------------------------------------------------------------------------------------------
// Absolute AOI centered
// -----------------------------------------------------------------------------------------------------------------
@Test
public void testGetAOICenteredS2SUp() {
assertEquals(new Rectangle(0, 0, 100, 100), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 333, 333));
}
@Test
public void testGetAOICenteredS2SDown() {
assertEquals(new Rectangle(33, 33, 33, 33), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 33, 33));
}
@Test
public void testGetAOICenteredS2SSame() {
assertEquals(new Rectangle(0, 0, 100, 100), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOICenteredS2WOverflow() {
assertEquals(new Rectangle(0, 0, 100, 100), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOICenteredS2W() {
assertEquals(new Rectangle(40, 45, 20, 10), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 20, 10));
}
@Test
public void testGetAOICenteredS2WMax() {
assertEquals(new Rectangle(0, 25, 100, 50), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOICenteredS2NOverflow() {
assertEquals(new Rectangle(0, 0, 100, 100), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 100, 200));
}
@Test
public void testGetAOICenteredS2N() {
assertEquals(new Rectangle(45, 40, 10, 20), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 10, 20));
}
@Test
public void testGetAOICenteredS2NMax() {
assertEquals(new Rectangle(25, 0, 50, 100), new DefaultAreaOfInterest(SQUARE_100_100).getAOI(-1, -1, 50, 100));
}
@Test
public void testGetAOICenteredW2SOverflow() {
assertEquals(new Rectangle(0, 0, 200, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 333, 333));
}
@Test
public void testGetAOICenteredW2S() {
assertEquals(new Rectangle(75, 25, 50, 50), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 50, 50));
}
@Test
public void testGetAOICenteredW2SMax() {
assertEquals(new Rectangle(50, 0, 100, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOICenteredW2WOverflow() {
assertEquals(new Rectangle(0, 0, 200, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 300, 200));
}
@Test
public void testGetAOICenteredW2W() {
assertEquals(new Rectangle(50, 25, 100, 50), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOICenteredW2WW() {
assertEquals(new Rectangle(10, 40, 180, 20), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 180, 20));
}
@Test
public void testGetAOICenteredW2WN() {
assertEquals(new Rectangle(62, 25, 75, 50), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 75, 50));
}
@Test
public void testGetAOICenteredW2WSame() {
assertEquals(new Rectangle(0, 0, 200, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOICenteredW2NOverflow() {
assertEquals(new Rectangle(50, 0, 100, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 100, 200));
}
@Test
public void testGetAOICenteredW2N() {
assertEquals(new Rectangle(83, 25, 33, 50), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 33, 50));
}
@Test
public void testGetAOICenteredW2NMax() {
assertEquals(new Rectangle(75, 0, 50, 100), new DefaultAreaOfInterest(LANDSCAPE_200_100).getAOI(-1, -1, 50, 100));
}
@Test
public void testGetAOICenteredN2S() {
assertEquals(new Rectangle(33, 83, 33, 33), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 33, 33));
}
@Test
public void testGetAOICenteredN2SMax() {
assertEquals(new Rectangle(0, 50, 100, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 100));
}
@Test
public void testGetAOICenteredN2WOverflow() {
assertEquals(new Rectangle(0, 50, 100, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 200, 100));
}
@Test
public void testGetAOICenteredN2W() {
assertEquals(new Rectangle(40, 95, 20, 10), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 20, 10));
}
@Test
public void testGetAOICenteredN2WMax() {
assertEquals(new Rectangle(0, 75, 100, 50), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 50));
}
@Test
public void testGetAOICenteredN2N() {
assertEquals(new Rectangle(45, 90, 10, 20), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 10, 20));
}
@Test
public void testGetAOICenteredN2NSame() {
assertEquals(new Rectangle(0, 0, 100, 200), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 200));
}
@Test
public void testGetAOICenteredN2NN() {
assertEquals(new Rectangle(37, 50, 25, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 25, 100));
}
@Test
public void testGetAOICenteredN2NW() {
assertEquals(new Rectangle(12, 50, 75, 100), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 75, 100));
}
@Test
public void testGetAOICenteredN2NWMax() {
assertEquals(new Rectangle(0, 37, 100, 125), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 125));
}
@Test
public void testGetAOICenteredN2NMax() {
assertEquals(new Rectangle(0, 0, 100, 200), new DefaultAreaOfInterest(PORTRAIT_100_200).getAOI(-1, -1, 100, 200));
}
}