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Posted to commits@myfaces.apache.org by sk...@apache.org on 2008/02/08 11:53:48 UTC

svn commit: r619830 - in /myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra: ./ filter/ lib/jsf/

Author: skitching
Date: Fri Feb  8 02:53:45 2008
New Revision: 619830

URL: http://svn.apache.org/viewvc?rev=619830&view=rev
Log:
Allow new FacesContextFactory-based request handling to be configurable again.
All this should now be backwards-compatible with the old code.

Added:
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/CoreConfig.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConfigUtils.java
Modified:
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/filter/OrchestraServletFilter.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ContextLockRequestHandler.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConversationManagerRequestHandler.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/DataSourceLeakRequestHandler.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FacesContextWrapper.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FrameworkAdapterRequestHandler.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/OrchestraFacesContextFactory.java
    myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/RequestHandler.java

Added: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/CoreConfig.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/CoreConfig.java?rev=619830&view=auto
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/CoreConfig.java (added)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/CoreConfig.java Fri Feb  8 02:53:45 2008
@@ -0,0 +1,85 @@
+/*
+ * 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.myfaces.orchestra;
+
+/**
+ * A place to define all the configuration constants that can be used to
+ * configure parts of Orchestra core.
+ */
+public final class CoreConfig
+{
+	private static final String BASE = CoreConfig.class.getName();
+
+	/**
+	 * Controls whether two threads are prevented from accessing the same
+	 * ConversationContext concurrently, or not. This is generally a bad idea as it
+	 * can lead to ugly race conditions, so it is TRUE by default.
+	 * <p>
+	 * It is possible for multiple requests associated with the same http session to be
+	 * received concurrently. By default, a servlet engine simply processes all requests
+	 * concurrently in different threads. However that can cause all sorts of unexpected
+	 * problems with objects in scopes that are visible to both threads (session-scoped
+	 * and conversation-scoped objects).
+	 * <p>
+	 * When enabled, this option will block the thread for any request which will
+	 * access the same Orchestra ConversationContext as a thread that is already
+	 * running, and release it only when the earlier request has completed. This protects
+	 * all orchestra conversation-scoped objects from concurrent access, but
+	 * <i>does not</i> protect any session-scoped objects.
+	 * <p>
+	 * When using Orchestra, it is recommended that session-scoped objects are avoided
+	 * conversation-scoped beans used instead. If there is no session-scoped data in
+	 * use by an application then it is safe to allow concurrent requests to the
+	 * same http session. If you do wish to protect normal session-scoped objects as
+	 * well, then the standard solution is to write a filter that uses standard java
+	 * synchronisation on a session-scoped object, taking the lock on request entry
+	 * and releasing it on request exit.
+	 * <p>
+	 * Note that the expression "serialize requests" as used here means requests are
+	 * processed serially, ie one after the other rather than concurrently. This has
+	 * nothing to do with java.io.Serializable.
+	 */
+	public static final String SERIALIZE_REQUESTS = BASE + ":SERIALIZE_REQUESTS";
+
+	/**
+	 * Controls whether Orchestra should monitor the set of JDBC connections borrowed
+	 * during a request, and clean up any that are still open at the end of the request.
+	 * <p>
+	 * Orchestra provides a special DataSource wrapper that can be configured for any
+	 * datasource used by the application. The datasource simply wraps all real Connection
+	 * objects it returns in a proxy, and keeps track of them. At the end of each request,
+	 * any connections borrowed by this thread but not returned can be returned
+	 * automatically. See ConnectionManagerDataSource for more details.
+	 * <p>
+	 * If this special DataSource is not configured, then checking for unreleased
+	 * connections is harmless, and always finds nothing. Therefore this option is
+	 * enabled by default. 
+	 */
+	public static final String CLEANUP_CONNECTIONS = BASE + ":CLEANUP_CONNECTIONS";
+
+	/**
+	 * Controls what class is used to present Orchestra-related error messages to
+	 * the user. When not specified, the default implementation for the current 
+	 * FrameworkAdapter (eg JsfFrameworkAdapter) is used.
+	 * <p>
+	 * See class ConversationMessager for further details.
+	 */
+	public static final String CONVERSATION_MESSAGER = BASE + ":CONVERSATION_MESSAGER";
+}
\ No newline at end of file

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/filter/OrchestraServletFilter.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/filter/OrchestraServletFilter.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/filter/OrchestraServletFilter.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/filter/OrchestraServletFilter.java Fri Feb  8 02:53:45 2008
@@ -28,57 +28,28 @@
 import javax.servlet.ServletRequest;
 import javax.servlet.ServletResponse;
 
+import org.apache.myfaces.orchestra.CoreConfig;
+
 /**
  * Perform a number of useful per-request tasks.
  * <p>
- * This filter is entirely optional; it can be omitted if you do not need any of the
- * functionality provided here. 
- * <p>
- * Note that it is necessary to define a filter that initialises the Orchestra
- * framework; this can be done either via a standalone filter such as
- * JsfFrameworkAdapterFilter, or via a filter that combines framework initialisation
- * with the functionality of this class, such as 
- * {@link org.apache.myfaces.orchestra.conversation.jsf.filter.OrchestraServletFilter}.
+ * This filter has been deprecated. The configuration settings it supports are
+ * still implemented; however web.xml files defining this filter should instead
+ * simply define context params using the corresponding constants from class 
+ * org.apache.myfaces.orchestra.CoreConfig instead.
  * <p>
  * <h2>Request Serialization</h2>
- * It is possible for multiple requests associated with the same http session to be
- * received concurrently.
- * <p> 
- * By default, the servlet engine simply processes all requests concurrently
- * in different threads. However that can cause all sorts of unexpected problems with 
- * session-scoped objects.
- * <p>
- * The usual solution is to apply a filter to all requests which uses standard java
- * synchronisation on a session-scoped object, taking the lock on request entry and
- * releasing it on request exit. This ensures that only one request for that session
- * runs at a time, with the others waiting until they can obtain a lock on the
- * appropriate object. This is referred to as "request serialization" because it causes
- * requests to be processed serially, ie one after the other, rather than concurrently.
- * This has nothing to do with java.io.Serializable.
- * <p>
- * When using an Orchestra conversationContext, session-scoped data should be avoided and
- * conversation-scoped beans used instead. If there is no session-scoped data in use by
- * an application then it is possible to allow concurrent requests to the same http session,
- * but NOT concurrent access to the same orchestra conversationContext. This filter 
- * implements that, by holding a lock on a mutex object held by the appropriate
- * conversationContext.
- * <p>
- * The request serialization functionality can be enabled or disabled via a filter init
+ * Request serialization functionality can be enabled or disabled via a filter init
  * parameter; setting "serializeRequests" to "false" disables this feature. Default
  * value: true (enabled).
  * <p>
+ * See {@See CoreConfig.SERIALIZE_REQUESTS} for further details.
+ * <p>
  * <h2>JDBC Connection Management</h2>
- * Orchestra provides a special DataSource wrapper that can be configured for any
- * datasource used by the application. The datasource simply wraps all real Connection
- * objects it returns in a proxy, and keeps track of them. Here in this servlet it
- * checks whether all connections borrowed by this thread have been returned, and if
- * not returns the real connection nulls out the connection held by the proxy. See
- * ConnectionManagerDataSource for more details.
+ * This servlet always enables connection management; see
+ * {@See CoreConfig.CLEANUP_CONNECTIONS} for further details.
  */
 
-// THIS CLASS HAS BEEN TEMPORARILY MODIFIED. The code formerly in here has been moved
-// to the OrchestraFacesContextFactory. That code needs to be made configurable again
-// (everything is currently hard-wired to on, unlike this filter).
 public class OrchestraServletFilter implements Filter
 {
 	/**
@@ -99,6 +70,8 @@
 
 	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, final FilterChain filterChain) throws IOException, ServletException
 	{
+		// Copy the setting over to where the ContextLockRequestHandler class can see it.
+		servletRequest.setAttribute(CoreConfig.SERIALIZE_REQUESTS, Boolean.valueOf(serializeRequests));
 		filterChain.doFilter(servletRequest, servletResponse);
 	}
 

Added: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConfigUtils.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConfigUtils.java?rev=619830&view=auto
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConfigUtils.java (added)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConfigUtils.java Fri Feb  8 02:53:45 2008
@@ -0,0 +1,56 @@
+/*
+ * 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.myfaces.orchestra.lib.jsf;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Utility methods for configuring the behaviour of a JSF-based Orchestra installation.
+ */
+public abstract class ConfigUtils
+{
+	private static final String RH_KEY = ConfigUtils.class.getName() + ".RH";
+
+	static List getRequestHandlers(Map reqScope) {
+		List rhl = (List) reqScope.get(RH_KEY);
+		if (rhl != null)
+			return rhl;
+		else
+			return Collections.EMPTY_LIST;
+	}
+
+	/**
+	 * Can be called from a Filter or similar class in order to registed a
+	 * handler that should be run at the start of each request just
+	 * <i>after</i> the FacesContext object has been created, and at the end
+	 * of each request just <i>before</i> the FacesContext is released.
+	 */
+	public static void registerRequestHandler(Map reqScope, RequestHandler rh) {
+		List rhl = (List) reqScope.get(RH_KEY);
+		if (rhl == null)
+		{
+			rhl = new ArrayList(1);
+			reqScope.put(RH_KEY, rhl);
+		}
+		rhl.add(rh);
+	}
+}

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ContextLockRequestHandler.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ContextLockRequestHandler.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ContextLockRequestHandler.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ContextLockRequestHandler.java Fri Feb  8 02:53:45 2008
@@ -18,8 +18,13 @@
  */
 package org.apache.myfaces.orchestra.lib.jsf;
 
+import java.util.Map;
+
 import javax.faces.FacesException;
+import javax.faces.context.ExternalContext;
+import javax.faces.context.FacesContext;
 
+import org.apache.myfaces.orchestra.CoreConfig;
 import org.apache.myfaces.orchestra.conversation.ConversationContext;
 import org.apache.myfaces.orchestra.conversation.ConversationManager;
 
@@ -29,17 +34,11 @@
  */
 class ContextLockRequestHandler implements RequestHandler
 {
-	boolean serializeRequests;
 	ConversationContext context;
 
-	public ContextLockRequestHandler(boolean serializeRequests)
+	public void init(FacesContext facesContext) throws FacesException
 	{
-		this.serializeRequests = serializeRequests;
-	}
-
-	public void init() throws FacesException
-	{
-		if (serializeRequests)
+		if (getSerializeRequests(facesContext))
 		{
 			// Note that ConversationManager.getInstance requires the FrameworkAdapter
 			// to be initialised...
@@ -67,6 +66,23 @@
 		{
 			context.unlockForCurrentThread();
 		}
+	}
+	
+	private boolean getSerializeRequests(FacesContext facesContext)
+	{
+		ExternalContext ec = facesContext.getExternalContext();
+
+		// Check for deprecated setting via the OrchestraServletFilter.
+		Map reqScope = ec.getRequestMap();
+		Boolean serializeRequests = (Boolean) reqScope.get(CoreConfig.SERIALIZE_REQUESTS);
+		if (serializeRequests != null)
+		{
+			return serializeRequests.booleanValue();
+		}
+
+		// Check for the normal global init param; true unless "false" is specified 
+		String value = ec.getInitParameter(CoreConfig.SERIALIZE_REQUESTS);
+		return !"false".equals(value); // NON-NLS
 	}
 }
 

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConversationManagerRequestHandler.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConversationManagerRequestHandler.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConversationManagerRequestHandler.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/ConversationManagerRequestHandler.java Fri Feb  8 02:53:45 2008
@@ -19,6 +19,7 @@
 package org.apache.myfaces.orchestra.lib.jsf;
 
 import javax.faces.FacesException;
+import javax.faces.context.FacesContext;
 
 import org.apache.myfaces.orchestra.conversation.ConversationManager;
 
@@ -28,7 +29,7 @@
  */
 class ConversationManagerRequestHandler implements RequestHandler
 {
-	public void init() throws FacesException
+	public void init(FacesContext facesContext) throws FacesException
 	{
 		ConversationManager.getInstance();
 	}

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/DataSourceLeakRequestHandler.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/DataSourceLeakRequestHandler.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/DataSourceLeakRequestHandler.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/DataSourceLeakRequestHandler.java Fri Feb  8 02:53:45 2008
@@ -19,7 +19,9 @@
 package org.apache.myfaces.orchestra.lib.jsf;
 
 import javax.faces.FacesException;
+import javax.faces.context.FacesContext;
 
+import org.apache.myfaces.orchestra.CoreConfig;
 import org.apache.myfaces.orchestra.connectionManager.ConnectionManagerDataSource;
 
 /**
@@ -28,13 +30,21 @@
  */
 class DataSourceLeakRequestHandler implements RequestHandler
 {
-	public void init() throws FacesException
+	boolean enabled;
+
+	public void init(FacesContext facesContext) throws FacesException
 	{
+		// Check for the normal global init param; true unless "false" is specified 
+		String value = facesContext.getExternalContext().getInitParameter(CoreConfig.SERIALIZE_REQUESTS);
+		enabled = !"false".equals(value);
 	}
 
 	public void deinit() throws FacesException
 	{
-		ConnectionManagerDataSource.releaseAllBorrowedConnections();
+		if (enabled)
+		{
+			ConnectionManagerDataSource.releaseAllBorrowedConnections();
+		}
 	}
 }
 

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FacesContextWrapper.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FacesContextWrapper.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FacesContextWrapper.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FacesContextWrapper.java Fri Feb  8 02:53:45 2008
@@ -35,6 +35,8 @@
  * <p>
  * Any methods that do not actually need to be overridden are declared final
  * in order to improve performance (helps the JVM to optimise away the call).
+ * <p>
+ * Note that this class does NOT call 
  * 
  * @since 1.1
  * 
@@ -50,9 +52,16 @@
 
     //~ Constructors ----------------------------------------------------------
 
-    public FacesContextWrapper(FacesContext facesContext)
+    /**
+     * The install parameter controls whether this object will be configured as
+     * the object returned from calls to FacesContext.getCurrentInstance() or not.
+     */
+    public FacesContextWrapper(FacesContext facesContext, boolean install)
     {
-        _facesContext = facesContext;
+    	_facesContext = facesContext;
+    	
+    	if (install)
+    		FacesContext.setCurrentInstance(this);
     }
 
     //~ Non-Final Methods -----------------------------------------------------

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FrameworkAdapterRequestHandler.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FrameworkAdapterRequestHandler.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FrameworkAdapterRequestHandler.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/FrameworkAdapterRequestHandler.java Fri Feb  8 02:53:45 2008
@@ -19,10 +19,12 @@
 package org.apache.myfaces.orchestra.lib.jsf;
 
 import javax.faces.FacesException;
+import javax.faces.context.ExternalContext;
 import javax.faces.context.FacesContext;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.myfaces.orchestra.CoreConfig;
 import org.apache.myfaces.orchestra.frameworkAdapter.FrameworkAdapter;
 import org.apache.myfaces.orchestra.frameworkAdapter.jsf.JsfFrameworkAdapter;
 
@@ -35,23 +37,17 @@
 
 	private final Log log = LogFactory.getLog(FrameworkAdapterRequestHandler.class);
 
-	private FacesContext facesContext;
 	private JsfFrameworkAdapter adapter;
 
-	public FrameworkAdapterRequestHandler(FacesContext facesContext)
-	{
-		this.facesContext = facesContext;
-	}
-
-	public void init() throws FacesException
+	public void init(FacesContext facesContext) throws FacesException
 	{
 		log.debug("init");
+
 		if (FrameworkAdapter.getCurrentInstance() == null)
 		{
 			log.debug("creating jsfFrameworkAdapter");
 			// No filter has yet initialised the adapter, so do it here.
-			String conversationMessagerClass = facesContext.getExternalContext().getInitParameter(
-					CONVERSATION_MESSAGER_CLASS);
+			String conversationMessagerClass = getConversationMessagerClass(facesContext);
 			adapter = new JsfFrameworkAdapter(conversationMessagerClass);
 			adapter.beginRequest();
 		}
@@ -63,5 +59,19 @@
 		{
 			adapter.endRequest();
 		}
+	}
+	
+	private static String getConversationMessagerClass(FacesContext facesContext)
+	{
+		ExternalContext ec = facesContext.getExternalContext();
+
+		String cn = ec.getInitParameter(CONVERSATION_MESSAGER_CLASS);
+		if (cn != null)
+		{
+			return cn;
+		}
+		
+		cn = ec.getInitParameter(CoreConfig.CONVERSATION_MESSAGER);
+		return cn;
 	}
 }

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/OrchestraFacesContextFactory.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/OrchestraFacesContextFactory.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/OrchestraFacesContextFactory.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/OrchestraFacesContextFactory.java Fri Feb  8 02:53:45 2008
@@ -20,6 +20,7 @@
 
 import java.util.LinkedList;
 import java.util.ListIterator;
+import java.util.Map;
 
 import javax.faces.FacesException;
 import javax.faces.context.FacesContext;
@@ -72,15 +73,27 @@
 			return null;
 		}
 
-		// TODO: make this handlers list configurable
+		// The handlers need to be reset on every request, as each request has a different
+		// url which could potentially affect the list of handlers for that request.
 		final LinkedList handlers = new LinkedList();
-		handlers.add(new ContextLockRequestHandler(true));
-		handlers.add(new FrameworkAdapterRequestHandler(facesContext));
+		handlers.add(new ContextLockRequestHandler());
+		handlers.add(new FrameworkAdapterRequestHandler());
 		handlers.add(new ConversationManagerRequestHandler());
 		handlers.add(new DataSourceLeakRequestHandler());
 
+		// Add any other handlers registered by filters or similar
+		Map reqScope = facesContext.getExternalContext().getRequestMap();
+		handlers.addAll(ConfigUtils.getRequestHandlers(reqScope));
+
+		// Create and return the custom instance. Note that install=false
+		// is specified for the FacesContextWrapper constructor. All that
+		// is important here is that the FacesServlet calls the release 
+		// method on this particular object, and that will happen because
+		// FacesServlet uses the return value from this method as the object
+		// to call release on. By not installing this as the object used
+		// elsewhere, we save a little bit of performance.
 		log.debug("getFacesContext: creating custom instance");
-		return new FacesContextWrapper(facesContext)
+		return new FacesContextWrapper(facesContext, false)
 		{
 			// Constructor...
 			{
@@ -97,7 +110,7 @@
 							log.debug("Running inithandler of type " + i.getClass().getName());
 						}
 
-						h.init();
+						h.init(facesContext);
 					}
 				}
 				catch(RuntimeException e)

Modified: myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/RequestHandler.java
URL: http://svn.apache.org/viewvc/myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/RequestHandler.java?rev=619830&r1=619829&r2=619830&view=diff
==============================================================================
--- myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/RequestHandler.java (original)
+++ myfaces/orchestra/trunk/core/src/main/java/org/apache/myfaces/orchestra/lib/jsf/RequestHandler.java Fri Feb  8 02:53:45 2008
@@ -19,13 +19,14 @@
 package org.apache.myfaces.orchestra.lib.jsf;
 
 import javax.faces.FacesException;
+import javax.faces.context.FacesContext;
 
 /**
  * An interface for classes that want to be run at the start and end
  * of each jsf request.
  */
-interface RequestHandler
+public interface RequestHandler
 {
-	void init() throws FacesException;
+	void init(FacesContext facesContext) throws FacesException;
 	void deinit() throws FacesException;
 }