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This is the master POM file for Oracle's Implementation of the JSF 2.2 Specification.
The newest version!
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.faces.context;
import java.util.LinkedList;
import java.util.Collections;
import java.util.Iterator;
import java.util.logging.Logger;
import java.util.logging.Level;
import javax.faces.FacesException;
import javax.faces.application.ProjectStage;
import javax.faces.component.UIComponent;
import javax.faces.context.ExceptionHandler;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.ExceptionQueuedEvent;
import javax.faces.event.SystemEvent;
import javax.faces.event.ExceptionQueuedEventContext;
import javax.faces.event.PhaseId;
import javax.el.ELException;
import com.sun.faces.util.FacesLogger;
import com.sun.faces.renderkit.RenderKitUtils;
import javax.faces.context.ExternalContext;
/**
*
* The default implementation of {@link ExceptionHandler} for JSF 2.0.
*
*
*
* As an implementation note, if changes going forward are required here,
* review the ExceptionHandler implementation within
* javax.faces.webapp.PreJsf2ExceptionHandlerFactory. The code
* is, in most cases, quite similar.
*
*
*/
public class ExceptionHandlerImpl extends ExceptionHandler {
private static final Logger LOGGER = FacesLogger.CONTEXT.getLogger();
private static final String LOG_BEFORE_KEY =
"jsf.context.exception.handler.log_before";
private static final String LOG_AFTER_KEY =
"jsf.context.exception.handler.log_after";
private static final String LOG_KEY =
"jsf.context.exception.handler.log";
public static final java.util.logging.Level INCIDENT_ERROR =
Level.parse(Integer.toString(Level.SEVERE.intValue() + 100));
private LinkedList unhandledExceptions;
private LinkedList handledExceptions;
private ExceptionQueuedEvent handled;
private boolean errorPagePresent;
// ------------------------------------------------------------ Constructors
public ExceptionHandlerImpl() {
this.errorPagePresent = true;
}
public ExceptionHandlerImpl(boolean errorPagePresent) {
this.errorPagePresent = errorPagePresent;
}
// ------------------------------------------- Methods from ExceptionHandler
public ExceptionQueuedEvent getHandledExceptionQueuedEvent() {
return handled;
}
/**
* @see javax.faces.context.ExceptionHandler#handle()
*/
@SuppressWarnings({"ThrowableInstanceNeverThrown"})
public void handle() throws FacesException {
for (Iterator i = getUnhandledExceptionQueuedEvents().iterator(); i.hasNext(); ) {
ExceptionQueuedEvent event = i.next();
ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();
try {
Throwable t = context.getException();
if (isRethrown(t)) {
handled = event;
Throwable unwrapped = getRootCause(t);
if (unwrapped != null) {
throwIt(context.getContext(),
new FacesException(unwrapped.getMessage(), unwrapped));
} else {
if (t instanceof FacesException) {
throwIt(context.getContext(), (FacesException) t);
} else {
throwIt(context.getContext(),
new FacesException(t.getMessage(), t));
}
}
if (LOGGER.isLoggable(INCIDENT_ERROR)) {
log(context);
}
} else {
log(context);
}
} finally {
if (handledExceptions == null) {
handledExceptions = new LinkedList();
}
handledExceptions.add(event);
i.remove();
}
}
}
/**
* @see javax.faces.context.ExceptionHandler#isListenerForSource(Object)
*/
public boolean isListenerForSource(Object source) {
return (source instanceof ExceptionQueuedEventContext);
}
/**
* @see javax.faces.context.ExceptionHandler#processEvent(javax.faces.event.SystemEvent)
*/
public void processEvent(SystemEvent event) throws AbortProcessingException {
if (event != null) {
if (unhandledExceptions == null) {
unhandledExceptions = new LinkedList();
}
unhandledExceptions.add((ExceptionQueuedEvent) event);
}
}
/**
* @see ExceptionHandler#getRootCause(Throwable)
*/
public Throwable getRootCause(Throwable t) {
if (t == null) {
return null;
}
if (shouldUnwrap(t.getClass())) {
Throwable root = t.getCause();
if (root != null) {
Throwable tmp = getRootCause(root);
if (tmp == null) {
return root;
} else {
return tmp;
}
} else {
return t;
}
}
return t;
}
/**
* @see javax.faces.context.ExceptionHandler#getUnhandledExceptionQueuedEvents()
*/
public Iterable getUnhandledExceptionQueuedEvents() {
return ((unhandledExceptions != null)
? unhandledExceptions
: Collections.emptyList());
}
/**
* @see javax.faces.context.ExceptionHandler#getHandledExceptionQueuedEvents()
*/
public Iterable getHandledExceptionQueuedEvents() {
return ((handledExceptions != null)
? handledExceptions
: Collections.emptyList());
}
// --------------------------------------------------------- Private Methods
private void throwIt(FacesContext ctx, FacesException fe) {
boolean isDevelopment = ctx.isProjectStage(ProjectStage.Development);
ExternalContext extContext = ctx.getExternalContext();
Throwable wrapped = fe.getCause();
try {
extContext.responseReset();
} catch (Exception e) {
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.log(Level.INFO, "Exception when handling error trying to reset the response.", wrapped);
}
}
if (null != wrapped && wrapped instanceof FacesFileNotFoundException) {
extContext.setResponseStatus(404);
} else {
extContext.setResponseStatus(500);
}
if (isDevelopment && !errorPagePresent) {
// RELEASE_PENDING_2_1
// thThe error page here will be text/html which means not all device
// types are going to render this properly. This should be addressed
// in 2.1
RenderKitUtils.renderHtmlErrorPage(ctx, fe);
} else {
if (isDevelopment) {
// store the view root where the exception occurred into the
// request scope so that the error page can display that component
// tree and not the one rendering the errorpage
ctx.getExternalContext().getRequestMap().put("com.sun.faces.error.view", ctx.getViewRoot());
}
throw fe;
}
}
/**
* @param c Throwable implementation class
* @return true if c is FacesException.class or
* ELException.class
*/
private boolean shouldUnwrap(Class c) {
return (FacesException.class.equals(c) || ELException.class.equals(c));
}
private boolean isRethrown(Throwable t) {
return (!(t instanceof AbortProcessingException));
}
private void log(ExceptionQueuedEventContext exceptionContext) {
UIComponent c = exceptionContext.getComponent();
boolean beforePhase = exceptionContext.inBeforePhase();
boolean afterPhase = exceptionContext.inAfterPhase();
PhaseId phaseId = exceptionContext.getPhaseId();
Throwable t = exceptionContext.getException();
String key = getLoggingKey(beforePhase, afterPhase);
// If both SEVERE and INCIDENT_ERROR are loggable, just use
// INCIDENT ERROR, otherwise just use SEVERE.
Level level = LOGGER.isLoggable(INCIDENT_ERROR) && LOGGER.isLoggable(Level.SEVERE) ? INCIDENT_ERROR : Level.SEVERE;
if (LOGGER.isLoggable(level)) {
LOGGER.log(level,
key,
new Object[] { t.getClass().getName(),
phaseId.toString(),
((c != null) ? c.getClientId(exceptionContext.getContext()) : ""),
t.getMessage()});
if (t.getMessage() != null) {
LOGGER.log(level, t.getMessage(), t);
} else {
LOGGER.log(level, "No associated message", t);
}
}
}
private String getLoggingKey(boolean beforePhase, boolean afterPhase) {
if (beforePhase) {
return LOG_BEFORE_KEY;
} else if (afterPhase) {
return LOG_AFTER_KEY;
} else {
return LOG_KEY;
}
}
}