/*
* 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.deltaspike.jsf.impl.listener.request;
import org.apache.deltaspike.core.api.config.view.metadata.ViewConfigResolver;
import org.apache.deltaspike.core.api.provider.BeanProvider;
import org.apache.deltaspike.core.util.ClassDeactivationUtils;
import org.apache.deltaspike.jsf.impl.config.view.DefaultErrorViewAwareExceptionHandlerWrapper;
import org.apache.deltaspike.jsf.impl.message.FacesMessageEntry;
import javax.faces.application.FacesMessage;
import javax.faces.context.ExceptionHandler;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.context.FacesContextWrapper;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
class DeltaSpikeFacesContextWrapper extends FacesContextWrapper
{
private final FacesContext wrappedFacesContext;
private BeforeAfterJsfRequestBroadcaster beforeAfterJsfRequestBroadcaster;
private boolean defaultErrorViewExceptionHandlerActivated;
private ExternalContext wrappedExternalContext;
DeltaSpikeFacesContextWrapper(FacesContext wrappedFacesContext)
{
this.wrappedFacesContext = wrappedFacesContext;
if (ClassDeactivationUtils.isActivated(DeltaSpikeExternalContextWrapper.class))
{
this.wrappedExternalContext =
new DeltaSpikeExternalContextWrapper(wrappedFacesContext.getExternalContext());
}
else
{
this.wrappedExternalContext = wrappedFacesContext.getExternalContext();
}
setCurrentInstance(this);
}
/**
* Broadcasts the {@link org.apache.deltaspike.jsf.api.listener.request.AfterJsfRequest} event
* {@inheritDoc}
*/
@Override
public void release()
{
if (!this.wrappedFacesContext.getApplication().getResourceHandler().isResourceRequest(this.wrappedFacesContext))
{
broadcastAfterJsfRequestEvent();
}
wrappedFacesContext.release();
}
@Override
public ExceptionHandler getExceptionHandler()
{
lazyInit();
ExceptionHandler exceptionHandler = this.wrappedFacesContext.getExceptionHandler();
if (this.defaultErrorViewExceptionHandlerActivated)
{
exceptionHandler = new DefaultErrorViewAwareExceptionHandlerWrapper(exceptionHandler);
}
return exceptionHandler;
}
private void broadcastAfterJsfRequestEvent()
{
lazyInit();
if (this.beforeAfterJsfRequestBroadcaster != null)
{
this.beforeAfterJsfRequestBroadcaster.broadcastAfterJsfRequestEvent(this);
}
}
private void lazyInit()
{
if (this.beforeAfterJsfRequestBroadcaster == null)
{
if (ClassDeactivationUtils.isActivated(BeforeAfterJsfRequestBroadcaster.class))
{
this.beforeAfterJsfRequestBroadcaster =
BeanProvider.getContextualReference(BeforeAfterJsfRequestBroadcaster.class, true);
}
ViewConfigResolver viewConfigResolver = BeanProvider.getContextualReference(ViewConfigResolver.class);
//deactivate it, if there is no default-error-view available
this.defaultErrorViewExceptionHandlerActivated =
viewConfigResolver.getDefaultErrorViewConfigDescriptor() != null &&
ClassDeactivationUtils.isActivated(DefaultErrorViewAwareExceptionHandlerWrapper.class);
}
}
/**
* Adds the {@link FacesMessage} also to a request scoped list to allow to preserve them later on
* (in case of redirects)
*
* {@inheritDoc}
*/
@Override
public void addMessage(String componentId, FacesMessage facesMessage)
{
this.wrappedFacesContext.addMessage(componentId, facesMessage);
//don't store it directly in the window context - it would trigger a too early restore (in some cases)
Map<String, Object> requestMap = getExternalContext().getRequestMap();
@SuppressWarnings({ "unchecked" })
List<FacesMessageEntry> facesMessageEntryList =
(List<FacesMessageEntry>)requestMap.get(FacesMessageEntry.class.getName());
if (facesMessageEntryList == null)
{
facesMessageEntryList = new CopyOnWriteArrayList<FacesMessageEntry>();
requestMap.put(FacesMessageEntry.class.getName(), facesMessageEntryList);
}
facesMessageEntryList.add(new FacesMessageEntry(componentId, facesMessage));
}
@Override
public ExternalContext getExternalContext()
{
return this.wrappedExternalContext;
}
@Override
public FacesContext getWrapped()
{
return this.wrappedFacesContext;
}
}