/*
* 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.application;
import javax.faces.FacesException;
import javax.faces.application.Application;
import javax.faces.application.NavigationHandler;
import javax.faces.component.ActionSource;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.MethodBinding;
import javax.faces.el.MethodNotFoundException;
import javax.faces.event.ActionEvent;
import javax.faces.event.ActionListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.text.MessageFormat;
import com.sun.faces.util.Util;
import com.sun.faces.util.FacesLogger;
/**
* This action listener implementation processes action events during the
* <em>Apply Request Values</em> or <em>Invoke Application</em>
* phase of the request processing lifecycle (depending upon the
* <code>immediate</code> property of the {@link ActionSource} that
* queued this event. It invokes the specified application action method,
* and uses the logical outcome value to invoke the default navigation handler
* mechanism to determine which view should be displayed next.</p>
*/
public class ActionListenerImpl implements ActionListener {
// Log instance for this class
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
// --------------------------------------------- Methods From ActionListener
@SuppressWarnings("deprecation")
public void processAction(ActionEvent event) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(MessageFormat.format("processAction({0})",
event.getComponent().getId()));
}
UIComponent source = event.getComponent();
ActionSource actionSource = (ActionSource) source;
FacesContext context = FacesContext.getCurrentInstance();
Application application = context.getApplication();
Object invokeResult;
String outcome = null;
MethodBinding binding;
binding = actionSource.getAction();
if (binding != null) {
try {
if (null != (invokeResult = binding.invoke(context, null))) {
outcome = invokeResult.toString();
}
// else, default to null, as assigned above.
} catch (MethodNotFoundException e) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, e.getMessage(), e);
}
throw new FacesException
(binding.getExpressionString() + ": " + e.getMessage(),
e);
}
catch (EvaluationException e) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, e.getMessage(), e);
}
throw new FacesException
(binding.getExpressionString() + ": " + e.getMessage(),
e);
}
}
// Retrieve the NavigationHandler instance..
NavigationHandler navHandler = application.getNavigationHandler();
// Invoke nav handling..
navHandler.handleNavigation(context,
(null != binding) ?
binding.getExpressionString() : null,
outcome);
// Trigger a switch to Render Response if needed
context.renderResponse();
}
}