/*
* JBoss, Home of Professional Open Source
* Copyright 2009, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 1999-2009 The Apache Software Foundation
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.catalina.core;
import java.io.File;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.EventListener;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import javax.naming.Binding;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.servlet.Filter;
import javax.servlet.FilterRegistration;
import javax.servlet.RequestDispatcher;
import javax.servlet.Servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextAttributeEvent;
import javax.servlet.ServletContextAttributeListener;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletException;
import javax.servlet.ServletRegistration;
import javax.servlet.ServletRequestAttributeListener;
import javax.servlet.ServletRequestListener;
import javax.servlet.SessionCookieConfig;
import javax.servlet.SessionTrackingMode;
import javax.servlet.descriptor.JspConfigDescriptor;
import javax.servlet.descriptor.JspPropertyGroupDescriptor;
import javax.servlet.descriptor.TaglibDescriptor;
import javax.servlet.http.HttpSessionAttributeListener;
import javax.servlet.http.HttpSessionListener;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
import org.apache.catalina.Host;
import org.apache.catalina.Wrapper;
import org.apache.catalina.deploy.ApplicationParameter;
import org.apache.catalina.deploy.FilterDef;
import org.apache.catalina.deploy.JspPropertyGroup;
import org.apache.catalina.util.Enumerator;
import org.apache.catalina.util.RequestUtil;
import org.apache.catalina.util.ResourceSet;
import org.apache.catalina.util.ServerInfo;
import org.apache.catalina.util.StringManager;
import org.apache.naming.resources.DirContextURLStreamHandler;
import org.apache.naming.resources.Resource;
import org.apache.tomcat.util.buf.CharChunk;
import org.apache.tomcat.util.buf.MessageBytes;
import org.apache.tomcat.util.http.mapper.MappingData;
/**
* Standard implementation of <code>ServletContext</code> that represents
* a web application's execution environment. An instance of this class is
* associated with each instance of <code>StandardContext</code>.
*
* @author Craig R. McClanahan
* @author Remy Maucherat
* @version $Revision: 1237 $ $Date: 2009-11-03 02:55:48 +0100 (Tue, 03 Nov 2009) $
*/
public class ApplicationContext
implements ServletContext {
// ----------------------------------------------------------- Constructors
/**
* Construct a new instance of this class, associated with the specified
* Context instance.
*
* @param context The associated Context instance
*/
public ApplicationContext(String basePath, StandardContext context) {
super();
this.context = context;
this.basePath = basePath;
}
// ----------------------------------------------------- Instance Variables
/**
* The context attributes for this context.
*/
protected Map attributes = new ConcurrentHashMap();
/**
* List of read only attributes for this context.
*/
private Map readOnlyAttributes = new ConcurrentHashMap();
/**
* The Context instance with which we are associated.
*/
private StandardContext context = null;
/**
* Empty collection to serve as the basis for empty enumerations.
* <strong>DO NOT ADD ANY ELEMENTS TO THIS COLLECTION!</strong>
*/
private static final ArrayList empty = new ArrayList();
/**
* The facade around this object.
*/
private ServletContext facade = new ApplicationContextFacade(this);
/**
* The merged context initialization parameters for this Context.
*/
private Map parameters = null;
/**
* The string manager for this package.
*/
private static final StringManager sm =
StringManager.getManager(Constants.Package);
/**
* Base path.
*/
private String basePath = null;
/**
* Thread local data used during request dispatch.
*/
private ThreadLocal<DispatchData> dispatchData =
new ThreadLocal<DispatchData>();
/**
* The restricted flag.
*/
private boolean restricted = false;
// --------------------------------------------------------- Public Methods
/**
* Return the resources object that is mapped to a specified path.
* The path must begin with a "/" and is interpreted as relative to the
* current context root.
*/
public DirContext getResources() {
return context.getResources();
}
public boolean isRestricted() {
return restricted;
}
public void setRestricted(boolean restricted) {
this.restricted = restricted;
}
// ------------------------------------------------- ServletContext Methods
/**
* Return the value of the specified context attribute, if any;
* otherwise return <code>null</code>.
*
* @param name Name of the context attribute to return
*/
public Object getAttribute(String name) {
return (attributes.get(name));
}
/**
* Return an enumeration of the names of the context attributes
* associated with this context.
*/
public Enumeration getAttributeNames() {
return new Enumerator(attributes.keySet(), true);
}
/**
* Return a <code>ServletContext</code> object that corresponds to a
* specified URI on the server. This method allows servlets to gain
* access to the context for various parts of the server, and as needed
* obtain <code>RequestDispatcher</code> objects or resources from the
* context. The given path must be absolute (beginning with a "/"),
* and is interpreted based on our virtual host's document root.
*
* @param uri Absolute URI of a resource on the server
*/
public ServletContext getContext(String uri) {
// Validate the format of the specified argument
if ((uri == null) || (!uri.startsWith("/")))
return (null);
Context child = null;
try {
Host host = (Host) context.getParent();
String mapuri = uri;
while (true) {
child = (Context) host.findChild(mapuri);
if (child != null)
break;
int slash = mapuri.lastIndexOf('/');
if (slash < 0)
break;
mapuri = mapuri.substring(0, slash);
}
} catch (Throwable t) {
return (null);
}
if (child == null)
return (null);
if (context.getCrossContext()) {
// If crossContext is enabled, can always return the context
return child.getServletContext();
} else if (child == context) {
// Can still return the current context
return context.getServletContext();
} else {
// Nothing to return
return (null);
}
}
/**
* Return the main path associated with this context.
*/
public String getContextPath() {
return context.getPath();
}
/**
* Return the value of the specified initialization parameter, or
* <code>null</code> if this parameter does not exist.
*
* @param name Name of the initialization parameter to retrieve
*/
public String getInitParameter(final String name) {
mergeParameters();
return ((String) parameters.get(name));
}
/**
* Return the names of the context's initialization parameters, or an
* empty enumeration if the context has no initialization parameters.
*/
public Enumeration getInitParameterNames() {
mergeParameters();
return (new Enumerator(parameters.keySet()));
}
/**
* Return the major version of the Java Servlet API that we implement.
*/
public int getMajorVersion() {
return (Constants.MAJOR_VERSION);
}
/**
* Return the minor version of the Java Servlet API that we implement.
*/
public int getMinorVersion() {
return (Constants.MINOR_VERSION);
}
/**
* Return the MIME type of the specified file, or <code>null</code> if
* the MIME type cannot be determined.
*
* @param file Filename for which to identify a MIME type
*/
public String getMimeType(String file) {
if (file == null)
return (null);
int period = file.lastIndexOf(".");
if (period < 0)
return (null);
String extension = file.substring(period + 1);
if (extension.length() < 1)
return (null);
return (context.findMimeMapping(extension));
}
/**
* Return a <code>RequestDispatcher</code> object that acts as a
* wrapper for the named servlet.
*
* @param name Name of the servlet for which a dispatcher is requested
*/
public RequestDispatcher getNamedDispatcher(String name) {
// Validate the name argument
if (name == null)
return (null);
// Create and return a corresponding request dispatcher
Wrapper wrapper = (Wrapper) context.findChild(name);
if (wrapper == null)
return (null);
return new ApplicationDispatcher(wrapper, null, null, null, null, null, name);
}
/**
* Return the real path for a given virtual path, if possible; otherwise
* return <code>null</code>.
*
* @param path The path to the desired resource
*/
public String getRealPath(String path) {
if (!context.isFilesystemBased())
return null;
if (path == null) {
return null;
}
File file = new File(basePath, path);
return (file.getAbsolutePath());
}
/**
* Return a <code>RequestDispatcher</code> instance that acts as a
* wrapper for the resource at the given path. The path must begin
* with a "/" and is interpreted as relative to the current context root.
*
* @param path The path to the desired resource.
*/
public RequestDispatcher getRequestDispatcher(String path) {
// Validate the path argument
if (path == null)
return (null);
if (!path.startsWith("/"))
throw new IllegalArgumentException
(sm.getString
("applicationContext.requestDispatcher.iae", path));
// Get query string
String queryString = null;
int pos = path.indexOf('?');
if (pos >= 0) {
queryString = path.substring(pos + 1);
path = path.substring(0, pos);
}
path = RequestUtil.normalize(path);
if (path == null)
return (null);
pos = path.length();
// Use the thread local URI and mapping data
DispatchData dd = dispatchData.get();
if (dd == null) {
dd = new DispatchData();
dispatchData.set(dd);
}
MessageBytes uriMB = dd.uriMB;
uriMB.recycle();
// Use the thread local mapping data
MappingData mappingData = dd.mappingData;
// Map the URI
CharChunk uriCC = uriMB.getCharChunk();
try {
uriCC.append(context.getPath(), 0, context.getPath().length());
/*
* Ignore any trailing path params (separated by ';') for mapping
* purposes
*/
int semicolon = path.indexOf(';');
if (pos >= 0 && semicolon > pos) {
semicolon = -1;
}
uriCC.append(path, 0, semicolon > 0 ? semicolon : pos);
context.getMapper().map(uriMB, mappingData);
if (mappingData.wrapper == null) {
return (null);
}
/*
* Append any trailing path params (separated by ';') that were
* ignored for mapping purposes, so that they're reflected in the
* RequestDispatcher's requestURI
*/
if (semicolon > 0) {
uriCC.append(path, semicolon, pos - semicolon);
}
} catch (Exception e) {
// Should never happen
log(sm.getString("applicationContext.mapping.error"), e);
return (null);
}
Wrapper wrapper = (Wrapper) mappingData.wrapper;
String requestPath = mappingData.requestPath.toString();
String wrapperPath = mappingData.wrapperPath.toString();
String pathInfo = mappingData.pathInfo.toString();
mappingData.recycle();
// Construct a RequestDispatcher to process this request
return new ApplicationDispatcher
(wrapper, uriCC.toString(), requestPath, wrapperPath, pathInfo,
queryString, null);
}
/**
* Return the URL to the resource that is mapped to a specified path.
* The path must begin with a "/" and is interpreted as relative to the
* current context root.
*
* @param path The path to the desired resource
*
* @exception MalformedURLException if the path is not given
* in the correct form
*/
public URL getResource(String path)
throws MalformedURLException {
if (path == null || (Globals.STRICT_SERVLET_COMPLIANCE && !path.startsWith("/"))) {
throw new MalformedURLException(sm.getString("applicationContext.requestDispatcher.iae", path));
}
path = RequestUtil.normalize(path);
if (path == null)
return (null);
String libPath = "/WEB-INF/lib/";
if ((path.startsWith(libPath)) && (path.endsWith(".jar"))) {
File jarFile = null;
if (context.isFilesystemBased()) {
jarFile = new File(basePath, path);
} else {
jarFile = new File(context.getWorkPath(), path);
}
if (jarFile.exists()) {
return jarFile.toURL();
} else {
return null;
}
} else {
DirContext resources = context.getResources();
if (resources != null) {
String fullPath = context.getName() + path;
String hostName = context.getParent().getName();
try {
resources.lookup(path);
return new URL
("jndi", "", 0, getJNDIUri(hostName, fullPath),
new DirContextURLStreamHandler(resources));
} catch (Exception e) {
// Ignore
}
}
}
return (null);
}
/**
* Return the requested resource as an <code>InputStream</code>. The
* path must be specified according to the rules described under
* <code>getResource</code>. If no such resource can be identified,
* return <code>null</code>.
*
* @param path The path to the desired resource.
*/
public InputStream getResourceAsStream(String path) {
if (path == null || (Globals.STRICT_SERVLET_COMPLIANCE && !path.startsWith("/")))
return (null);
path = RequestUtil.normalize(path);
if (path == null)
return (null);
DirContext resources = context.getResources();
if (resources != null) {
try {
Object resource = resources.lookup(path);
if (resource instanceof Resource)
return (((Resource) resource).streamContent());
} catch (Exception e) {
}
}
return (null);
}
/**
* Return a Set containing the resource paths of resources member of the
* specified collection. Each path will be a String starting with
* a "/" character. The returned set is immutable.
*
* @param path Collection path
*/
public Set getResourcePaths(String path) {
// Validate the path argument
if (path == null) {
return null;
}
if (!path.startsWith("/")) {
throw new IllegalArgumentException
(sm.getString("applicationContext.resourcePaths.iae", path));
}
path = RequestUtil.normalize(path);
if (path == null)
return (null);
DirContext resources = context.getResources();
if (resources != null) {
return (getResourcePathsInternal(resources, path));
}
return (null);
}
/**
* Internal implementation of getResourcesPath() logic.
*
* @param resources Directory context to search
* @param path Collection path
*/
private Set getResourcePathsInternal(DirContext resources, String path) {
ResourceSet set = new ResourceSet();
try {
listCollectionPaths(set, resources, path);
} catch (NamingException e) {
return (null);
}
set.setLocked(true);
return (set);
}
/**
* Return the name and version of the servlet container.
*/
public String getServerInfo() {
return (ServerInfo.getServerInfo());
}
/**
* @deprecated As of Java Servlet API 2.1, with no direct replacement.
*/
public Servlet getServlet(String name) {
return (null);
}
/**
* Return the display name of this web application.
*/
public String getServletContextName() {
return (context.getDisplayName());
}
/**
* @deprecated As of Java Servlet API 2.1, with no direct replacement.
*/
public Enumeration getServletNames() {
return (new Enumerator(empty));
}
/**
* @deprecated As of Java Servlet API 2.1, with no direct replacement.
*/
public Enumeration getServlets() {
return (new Enumerator(empty));
}
/**
* Writes the specified message to a servlet log file.
*
* @param message Message to be written
*/
public void log(String message) {
context.getLogger().info(message);
}
/**
* Writes the specified exception and message to a servlet log file.
*
* @param exception Exception to be reported
* @param message Message to be written
*
* @deprecated As of Java Servlet API 2.1, use
* <code>log(String, Throwable)</code> instead
*/
public void log(Exception exception, String message) {
context.getLogger().error(message, exception);
}
/**
* Writes the specified message and exception to a servlet log file.
*
* @param message Message to be written
* @param throwable Exception to be reported
*/
public void log(String message, Throwable throwable) {
context.getLogger().error(message, throwable);
}
/**
* Remove the context attribute with the specified name, if any.
*
* @param name Name of the context attribute to be removed
*/
public void removeAttribute(String name) {
Object value = null;
boolean found = false;
// Remove the specified attribute
// Check for read only attribute
if (readOnlyAttributes.containsKey(name))
return;
found = attributes.containsKey(name);
if (found) {
value = attributes.get(name);
attributes.remove(name);
} else {
return;
}
// Notify interested application event listeners
Object listeners[] = context.getApplicationEventListeners();
if ((listeners == null) || (listeners.length == 0))
return;
ServletContextAttributeEvent event =
new ServletContextAttributeEvent(context.getServletContext(),
name, value);
for (int i = 0; i < listeners.length; i++) {
if (!(listeners[i] instanceof ServletContextAttributeListener))
continue;
ServletContextAttributeListener listener =
(ServletContextAttributeListener) listeners[i];
try {
context.fireContainerEvent("beforeContextAttributeRemoved",
listener);
listener.attributeRemoved(event);
context.fireContainerEvent("afterContextAttributeRemoved",
listener);
} catch (Throwable t) {
context.fireContainerEvent("afterContextAttributeRemoved",
listener);
// FIXME - should we do anything besides log these?
log(sm.getString("applicationContext.attributeEvent"), t);
}
}
}
/**
* Bind the specified value with the specified context attribute name,
* replacing any existing value for that name.
*
* @param name Attribute name to be bound
* @param value New attribute value to be bound
*/
public void setAttribute(String name, Object value) {
// Name cannot be null
if (name == null)
throw new IllegalArgumentException
(sm.getString("applicationContext.setAttribute.namenull"));
// Null value is the same as removeAttribute()
if (value == null) {
removeAttribute(name);
return;
}
Object oldValue = null;
boolean replaced = false;
// Add or replace the specified attribute
// Check for read only attribute
if (readOnlyAttributes.containsKey(name))
return;
oldValue = attributes.get(name);
if (oldValue != null)
replaced = true;
attributes.put(name, value);
// Notify interested application event listeners
Object listeners[] = context.getApplicationEventListeners();
if ((listeners == null) || (listeners.length == 0))
return;
ServletContextAttributeEvent event = null;
if (replaced)
event =
new ServletContextAttributeEvent(context.getServletContext(),
name, oldValue);
else
event =
new ServletContextAttributeEvent(context.getServletContext(),
name, value);
for (int i = 0; i < listeners.length; i++) {
if (!(listeners[i] instanceof ServletContextAttributeListener))
continue;
ServletContextAttributeListener listener =
(ServletContextAttributeListener) listeners[i];
try {
if (replaced) {
context.fireContainerEvent
("beforeContextAttributeReplaced", listener);
listener.attributeReplaced(event);
context.fireContainerEvent("afterContextAttributeReplaced",
listener);
} else {
context.fireContainerEvent("beforeContextAttributeAdded",
listener);
listener.attributeAdded(event);
context.fireContainerEvent("afterContextAttributeAdded",
listener);
}
} catch (Throwable t) {
if (replaced)
context.fireContainerEvent("afterContextAttributeReplaced",
listener);
else
context.fireContainerEvent("afterContextAttributeAdded",
listener);
// FIXME - should we do anything besides log these?
log(sm.getString("applicationContext.attributeEvent"), t);
}
}
}
public FilterRegistration.Dynamic addFilter(String filterName, String className)
throws IllegalArgumentException, IllegalStateException {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
if (context.findFilterDef(filterName) != null) {
return null;
}
FilterDef filterDef = new FilterDef();
filterDef.setFilterName(filterName);
filterDef.setFilterClass(className);
context.addFilterDef(filterDef);
ApplicationFilterConfig filterConfig = new ApplicationFilterConfig(context, filterDef);
filterConfig.setDynamic(true);
context.addApplicationFilterConfig(filterConfig);
return (FilterRegistration.Dynamic) filterConfig.getFacade();
}
public FilterRegistration.Dynamic addFilter(String filterName, Filter filter) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
if (context.findFilterDef(filterName) != null) {
return null;
}
// Filter instance unicity
for (Container container : context.getParent().findChildren()) {
if (container instanceof StandardContext) {
for (ApplicationFilterConfig filterConfig : ((StandardContext) container).findApplicationFilterConfigs()) {
if (filterConfig.getFilterInstance() == filter) {
return null;
}
}
}
}
FilterDef filterDef = new FilterDef();
filterDef.setFilterName(filterName);
filterDef.setFilterClass(filter.getClass().getName());
context.addFilterDef(filterDef);
ApplicationFilterConfig filterConfig = new ApplicationFilterConfig(context, filterDef);
filterConfig.setDynamic(true);
filterConfig.setFilter(filter);
context.addApplicationFilterConfig(filterConfig);
return (FilterRegistration.Dynamic) filterConfig.getFacade();
}
public FilterRegistration.Dynamic addFilter(String filterName,
Class<? extends Filter> filterClass) {
return addFilter(filterName, filterClass.getName());
}
public ServletRegistration.Dynamic addServlet(String servletName, String className)
throws IllegalArgumentException, IllegalStateException {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
if (context.findChild(servletName) != null) {
return null;
}
Wrapper wrapper = context.createWrapper();
wrapper.setDynamic(true);
wrapper.setName(servletName);
wrapper.setServletClass(className);
context.addChild(wrapper);
return (ServletRegistration.Dynamic) wrapper.getFacade();
}
public ServletRegistration.Dynamic addServlet(String servletName,
Class<? extends Servlet> clazz) throws IllegalArgumentException,
IllegalStateException {
return addServlet(servletName, clazz.getName());
}
public ServletRegistration.Dynamic addServlet(String servletName, Servlet servlet) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
if (context.findChild(servletName) != null) {
return null;
}
// Servlet instance unicity
for (Container container : context.getParent().findChildren()) {
for (Container wrapper : container.findChildren()) {
if (((Wrapper) wrapper).getServlet() == servlet) {
return null;
}
}
}
Wrapper wrapper = context.createWrapper();
wrapper.setDynamic(true);
wrapper.setName(servletName);
wrapper.setServletClass(servlet.getClass().getName());
wrapper.setServlet(servlet);
context.addChild(wrapper);
return (ServletRegistration.Dynamic) wrapper.getFacade();
}
public FilterRegistration getFilterRegistration(String filterName) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
ApplicationFilterConfig filterConfig = context.findApplicationFilterConfig(filterName);
if (filterConfig == null) {
FilterDef filterDef = context.findFilterDef(filterName);
if (filterDef == null) {
return null;
} else {
filterConfig = new ApplicationFilterConfig(context, filterDef);
context.addApplicationFilterConfig(filterConfig);
}
}
return filterConfig.getFacade();
}
public ServletRegistration getServletRegistration(String servletName) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
Wrapper wrapper = (Wrapper) context.findChild(servletName);
if (wrapper != null) {
return wrapper.getFacade();
} else {
return null;
}
}
public Map<String, FilterRegistration> getFilterRegistrations() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
HashMap<String, FilterRegistration> result =
new HashMap<String, FilterRegistration>();
ApplicationFilterConfig[] filterConfigs = context.findApplicationFilterConfigs();
for (int i = 0; i < filterConfigs.length; i++) {
result.put(filterConfigs[i].getFilterName(), filterConfigs[i].getFacade());
}
return Collections.unmodifiableMap(result);
}
public Map<String, ServletRegistration> getServletRegistrations() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
HashMap<String, ServletRegistration> result =
new HashMap<String, ServletRegistration>();
Container[] wrappers = context.findChildren();
for (int i = 0; i < wrappers.length; i++) {
Wrapper wrapper = (Wrapper) wrappers[i];
result.put(wrapper.getName(), wrapper.getFacade());
}
return Collections.unmodifiableMap(result);
}
public Set<SessionTrackingMode> getDefaultSessionTrackingModes() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getDefaultSessionTrackingModes();
}
public Set<SessionTrackingMode> getEffectiveSessionTrackingModes() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getSessionTrackingModes();
}
public SessionCookieConfig getSessionCookieConfig() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getSessionCookie();
}
public <T extends Filter> T createFilter(Class<T> c)
throws ServletException {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
try {
return (T) context.getInstanceManager().newInstance(c);
} catch (Throwable e) {
throw new ServletException(sm.getString("applicationContext.create"), e);
}
}
public <T extends Servlet> T createServlet(Class<T> c)
throws ServletException {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
try {
return (T) context.getInstanceManager().newInstance(c);
} catch (Throwable e) {
throw new ServletException(sm.getString("applicationContext.create"), e);
}
}
public boolean setInitParameter(String name, String value) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
mergeParameters();
if (parameters.get(name) != null) {
return false;
} else {
parameters.put(name, value);
return true;
}
}
public void setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
// Check that only supported tracking modes have been requested
for (SessionTrackingMode sessionTrackingMode : sessionTrackingModes) {
if (!getDefaultSessionTrackingModes().contains(sessionTrackingMode)) {
throw new IllegalArgumentException(sm.getString(
"applicationContext.setSessionTracking.iae",
sessionTrackingMode.toString(), getContextPath()));
}
}
// If SSL is specified, it should be the only one used
if (sessionTrackingModes.contains(SessionTrackingMode.SSL) && sessionTrackingModes.size() > 1) {
throw new IllegalArgumentException(sm.getString(
"applicationContext.setSessionTracking.ssl", getContextPath()));
}
context.setSessionTrackingModes(sessionTrackingModes);
}
public void addListener(String className) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
EventListener listenerInstance = null;
try {
Class<?> clazz = context.getLoader().getClassLoader().loadClass(className);
listenerInstance = (EventListener) context.getInstanceManager().newInstance(clazz);
} catch (Throwable t) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
className, getContextPath()), t);
}
checkListenerType(listenerInstance);
if (context.getApplicationLifecycleListeners() != null && listenerInstance instanceof ServletContextListener) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
className, getContextPath()));
}
context.addApplicationListenerInstance(listenerInstance);
}
public <T extends EventListener> void addListener(T listener) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
checkListenerType(listener);
if (context.getApplicationLifecycleListeners() != null && listener instanceof ServletContextListener) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
listener.getClass().getName(), getContextPath()));
}
context.addApplicationListenerInstance(listener);
}
public void addListener(Class<? extends EventListener> listenerClass) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
EventListener listenerInstance = null;
try {
listenerInstance = (EventListener) context.getInstanceManager().newInstance(listenerClass);
} catch (Exception e) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
listenerClass.getName(), getContextPath()), e);
}
checkListenerType(listenerInstance);
if (context.getApplicationLifecycleListeners() != null && listenerInstance instanceof ServletContextListener) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
listenerClass.getName(), getContextPath()));
}
context.addApplicationListenerInstance(listenerInstance);
}
public <T extends EventListener> T createListener(Class<T> clazz)
throws ServletException {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
T listenerInstance = null;
try {
listenerInstance = (T) context.getInstanceManager().newInstance(clazz);
} catch (Throwable t) {
throw new ServletException(sm.getString("applicationContext.create"), t);
}
checkListenerType(listenerInstance);
return listenerInstance;
}
public ClassLoader getClassLoader() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getLoader().getClassLoader();
}
public JspConfigDescriptor getJspConfigDescriptor() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
ArrayList<TaglibDescriptor> taglibDescriptors = new ArrayList<TaglibDescriptor>();
String[] taglibURIs = context.findTaglibs();
for (int i = 0; i < taglibURIs.length; i++) {
String taglibLocation = context.findTaglib(taglibURIs[i]);
TaglibDescriptor taglibDescriptor =
new TaglibDescriptorImpl(taglibURIs[i], taglibLocation);
taglibDescriptors.add(taglibDescriptor);
}
ArrayList<JspPropertyGroupDescriptor> jspPropertyGroupDescriptors =
new ArrayList<JspPropertyGroupDescriptor>();
JspPropertyGroup[] jspPropertyGroups = context.findJspPropertyGroups();
for (int i = 0; i < jspPropertyGroups.length; i++) {
jspPropertyGroupDescriptors.add(jspPropertyGroups[i]);
}
return new JspConfigDescriptorImpl(jspPropertyGroupDescriptors, taglibDescriptors);
}
public int getEffectiveMajorVersion() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getVersionMajor();
}
public int getEffectiveMinorVersion() {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
return context.getVersionMinor();
}
public void declareRoles(String... roleNames) {
if (restricted) {
throw new UnsupportedOperationException(sm.getString("applicationContext.restricted"));
}
if (!context.isStarting()) {
throw new IllegalStateException(sm.getString("applicationContext.alreadyInitialized",
getContextPath()));
}
for (String role: roleNames) {
if (role == null || "".equals(role)) {
throw new IllegalArgumentException(sm.getString("applicationContext.emptyRole",
getContextPath()));
}
context.addSecurityRole(role);
}
}
// -------------------------------------------------------- Package Methods
protected void checkListenerType(EventListener listener) {
if (!(listener instanceof ServletContextListener)
&& !(listener instanceof ServletContextAttributeListener)
&& !(listener instanceof ServletRequestListener)
&& !(listener instanceof ServletRequestAttributeListener)
&& !(listener instanceof HttpSessionListener)
&& !(listener instanceof HttpSessionAttributeListener)) {
throw new IllegalArgumentException(sm.getString("applicationContext.badListenerClass",
listener.getClass().getName(), getContextPath()));
}
}
protected StandardContext getContext() {
return this.context;
}
protected Map getReadonlyAttributes() {
return this.readOnlyAttributes;
}
/**
* Clear all application-created attributes.
*/
protected void clearAttributes() {
// Create list of attributes to be removed
ArrayList list = new ArrayList();
Iterator iter = attributes.keySet().iterator();
while (iter.hasNext()) {
list.add(iter.next());
}
// Remove application originated attributes
// (read only attributes will be left in place)
Iterator keys = list.iterator();
while (keys.hasNext()) {
String key = (String) keys.next();
removeAttribute(key);
}
}
/**
* Return the facade associated with this ApplicationContext.
*/
protected ServletContext getFacade() {
return (this.facade);
}
/**
* Set an attribute as read only.
*/
void setAttributeReadOnly(String name) {
if (attributes.containsKey(name))
readOnlyAttributes.put(name, name);
}
// -------------------------------------------------------- Private Methods
/**
* Merge the context initialization parameters specified in the application
* deployment descriptor with the application parameters described in the
* server configuration, respecting the <code>override</code> property of
* the application parameters appropriately.
*/
private void mergeParameters() {
if (parameters != null)
return;
Map results = new ConcurrentHashMap();
String names[] = context.findParameters();
for (int i = 0; i < names.length; i++)
results.put(names[i], context.findParameter(names[i]));
ApplicationParameter params[] =
context.findApplicationParameters();
for (int i = 0; i < params.length; i++) {
if (params[i].getOverride()) {
if (results.get(params[i].getName()) == null)
results.put(params[i].getName(), params[i].getValue());
} else {
results.put(params[i].getName(), params[i].getValue());
}
}
parameters = results;
}
/**
* List resource paths (recursively), and store all of them in the given
* Set.
*/
private static void listCollectionPaths
(Set set, DirContext resources, String path)
throws NamingException {
Enumeration childPaths = resources.listBindings(path);
while (childPaths.hasMoreElements()) {
Binding binding = (Binding) childPaths.nextElement();
String name = binding.getName();
StringBuilder childPath = new StringBuilder(path);
if (!"/".equals(path) && !path.endsWith("/"))
childPath.append("/");
childPath.append(name);
Object object = binding.getObject();
if (object instanceof DirContext) {
childPath.append("/");
}
set.add(childPath.toString());
}
}
/**
* Get full path, based on the host name and the context path.
*/
private static String getJNDIUri(String hostName, String path) {
if (!path.startsWith("/"))
return "/" + hostName + "/" + path;
else
return "/" + hostName + path;
}
/**
* Internal class used as thread-local storage when doing path
* mapping during dispatch.
*/
private static final class DispatchData {
public MessageBytes uriMB;
public MappingData mappingData;
public DispatchData() {
uriMB = MessageBytes.newInstance();
CharChunk uriCC = uriMB.getCharChunk();
uriCC.setLimit(-1);
mappingData = new MappingData();
}
}
/**
* JSP config metadata class (not used for Jasper).
*/
private static final class JspConfigDescriptorImpl implements JspConfigDescriptor {
private Collection<JspPropertyGroupDescriptor> jspPropertyGroups;
private Collection<TaglibDescriptor> taglibs;
public JspConfigDescriptorImpl(Collection<JspPropertyGroupDescriptor> jspPropertyGroups,
Collection<TaglibDescriptor> taglibs) {
this.jspPropertyGroups = jspPropertyGroups;
this.taglibs = taglibs;
}
public Collection<JspPropertyGroupDescriptor> getJspPropertyGroups() {
return jspPropertyGroups;
}
public Collection<TaglibDescriptor> getTaglibs() {
return taglibs;
}
}
/**
* JSP taglib descriptor metadata class (not used for Jasper).
*/
private static final class TaglibDescriptorImpl implements TaglibDescriptor {
private String taglibLocation;
private String taglibURI;
public TaglibDescriptorImpl(String taglibURI, String taglibLocation) {
this.taglibLocation = taglibLocation;
this.taglibURI = taglibURI;
}
public String getTaglibLocation() {
return taglibLocation;
}
public String getTaglibURI() {
return taglibURI;
}
}
}