/*
* 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.extensions.cdi.jsf.impl.listener.phase;
import org.apache.myfaces.extensions.cdi.core.impl.util.ClassDeactivation;
import org.apache.myfaces.extensions.cdi.jsf.impl.listener.request.BeforeAfterFacesRequestBroadcaster;
import org.apache.myfaces.extensions.cdi.jsf.impl.listener.startup.ApplicationStartupBroadcaster;
import org.apache.myfaces.extensions.cdi.jsf.impl.scope.conversation.spi.WindowHandler;
import org.apache.myfaces.extensions.cdi.jsf.impl.scope.conversation.spi.LifecycleAwareWindowHandler;
import org.apache.myfaces.extensions.cdi.core.impl.util.CodiUtils;
import org.apache.myfaces.extensions.cdi.jsf.impl.util.RequestCache;
import javax.faces.lifecycle.Lifecycle;
import javax.faces.event.PhaseListener;
import javax.faces.context.FacesContext;
import javax.faces.FacesException;
import java.util.List;
/**
* intermediate workaround for
* {@link org.apache.myfaces.extensions.cdi.jsf.impl.util.JsfUtils#registerPhaseListener}
*
* @author Gerhard Petracek
*/
class CodiLifecycleWrapper extends Lifecycle
{
private Lifecycle wrapped;
private BeforeAfterFacesRequestBroadcaster beforeAfterFacesRequestBroadcaster;
private Boolean initialized;
private Boolean applicationInitialized;
CodiLifecycleWrapper(Lifecycle wrapped, List<PhaseListener> phaseListeners)
{
this.wrapped = wrapped;
for(PhaseListener phaseListener : phaseListeners)
{
this.wrapped.addPhaseListener(phaseListener);
}
}
public void addPhaseListener(PhaseListener phaseListener)
{
wrapped.addPhaseListener(phaseListener);
}
public void execute(FacesContext facesContext)
throws FacesException
{
broadcastApplicationStartupBroadcaster();
broadcastBeforeFacesRequestEvent(facesContext);
WindowHandler windowHandler = CodiUtils.getContextualReferenceByClass(WindowHandler.class);
if (windowHandler instanceof LifecycleAwareWindowHandler)
{
((LifecycleAwareWindowHandler) windowHandler).beforeLifecycleExecute(facesContext);
if (facesContext.getResponseComplete())
{
// no further processing
return;
}
}
wrapped.execute(facesContext);
}
public PhaseListener[] getPhaseListeners()
{
return this.wrapped.getPhaseListeners();
}
public void removePhaseListener(PhaseListener phaseListener)
{
wrapped.removePhaseListener(phaseListener);
}
public void render(FacesContext facesContext)
throws FacesException
{
wrapped.render(facesContext);
//if the cache would get resetted by an observer or a phase-listener
//it might be the case that a 2nd observer accesses the cache again and afterwards there won't be a cleanup
//-> don't remove:
RequestCache.resetCache();
}
private void broadcastApplicationStartupBroadcaster()
{
//just an !additional! check to improve the performance
if(applicationInitialized == null)
{
applicationInitialized = true;
ApplicationStartupBroadcaster applicationStartupBroadcaster =
CodiUtils.getContextualReferenceByClass(ApplicationStartupBroadcaster.class);
applicationStartupBroadcaster.broadcastStartupEvent();
}
}
private void broadcastBeforeFacesRequestEvent(FacesContext facesContext)
{
lazyInit();
if(this.beforeAfterFacesRequestBroadcaster != null)
{
this.beforeAfterFacesRequestBroadcaster.broadcastBeforeFacesRequestEvent(facesContext);
}
}
private void lazyInit()
{
if(this.initialized == null)
{
synchronized (this)
{
if(ClassDeactivation.isClassActivated(BeforeAfterFacesRequestBroadcaster.class))
{
this.beforeAfterFacesRequestBroadcaster =
CodiUtils.getContextualReferenceByClass(BeforeAfterFacesRequestBroadcaster.class);
}
this.initialized = true;
}
}
}
}