/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.ajax4jsf.event;
import java.util.Iterator;
import javax.faces.FactoryFinder;
import javax.faces.application.Application;
import javax.faces.application.StateManager;
import javax.faces.application.ViewHandler;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.faces.lifecycle.Lifecycle;
import javax.faces.lifecycle.LifecycleFactory;
import org.ajax4jsf.application.AjaxStateManager;
import org.ajax4jsf.application.AjaxViewHandler;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* One time called listener, for initialize framework at first request.
* @author shura
*
*/
public class InitPhaseListener implements PhaseListener {
private boolean removed= false;
private boolean initialized = false;
private static final Log log = LogFactory.getLog(InitPhaseListener.class);
/* (non-Javadoc)
* @see javax.faces.event.PhaseListener#afterPhase(javax.faces.event.PhaseEvent)
*/
public synchronized void afterPhase(PhaseEvent event) {
if (!removed) {
if(log.isDebugEnabled()){
log.debug("Remove init phase listener from factories");
}
LifecycleFactory factory = (LifecycleFactory)
FactoryFinder.getFactory(FactoryFinder.LIFECYCLE_FACTORY);
for(Iterator iter = factory.getLifecycleIds(); iter.hasNext(); ) {
Lifecycle lifecycle = factory.getLifecycle((String) iter.next());
lifecycle.removePhaseListener(this);
}
removed = true;
}
}
/* (non-Javadoc)
* @see javax.faces.event.PhaseListener#beforePhase(javax.faces.event.PhaseEvent)
*/
public synchronized void beforePhase(PhaseEvent event) {
if(!initialized){
if(log.isDebugEnabled()){
log.debug("Perform additional framework initialization on first request");
}
FacesContext facesContext = event.getFacesContext();
Application application = facesContext.getApplication();
StateManager stateManager = application.getStateManager();
if(! (stateManager instanceof AjaxStateManager)){
if(log.isDebugEnabled()){
log.debug("Set AjaxStateManager on top of chain");
}
application.setStateManager(new AjaxStateManager(stateManager));
}
ViewHandler viewHandler = application.getViewHandler();
if (!(viewHandler instanceof AjaxViewHandler)) {
if(log.isDebugEnabled()){
log.debug("Set AjaxViewHandler on top of chain");
}
application.setViewHandler(new AjaxViewHandler(viewHandler));
}
initialized = true;
}
}
/* (non-Javadoc)
* @see javax.faces.event.PhaseListener#getPhaseId()
*/
public PhaseId getPhaseId() {
// TODO Auto-generated method stub
return PhaseId.ANY_PHASE;
}
}