/*
* 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.
*
* $Header:$
*/
package org.apache.beehive.netui.pageflow.faces.internal;
import org.apache.beehive.netui.pageflow.internal.InternalUtils;
import org.apache.struts.action.ActionForm;
import javax.faces.event.ActionListener;
import javax.faces.event.ActionEvent;
import javax.faces.event.AbortProcessingException;
import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;
import javax.servlet.ServletRequest;
/**
* Internal class used in JSF/Page Flow integration. This exists to pass form beans from JSF pages to Page Flow
* actions, and to abort event processing if {@link PageFlowNavigationHandler} forwarded to an action.
*
* @see org.apache.beehive.netui.pageflow.faces.PageFlowApplicationFactory
*/
public class PageFlowActionListener
implements ActionListener
{
private ActionListener _delegate;
public PageFlowActionListener( ActionListener delegate )
{
_delegate = delegate;
}
public void processAction( ActionEvent event ) throws AbortProcessingException
{
Object submitFormBean = event.getComponent().getAttributes().get( "submitFormBean" );
FacesContext context = FacesContext.getCurrentInstance();
Object request = context.getExternalContext().getRequest();
if (submitFormBean != null && request instanceof ServletRequest) {
ValueBinding binding = context.getApplication().createValueBinding( "#{" + submitFormBean + '}' );
Object beanInstance = binding.getValue( context );
ActionForm wrappedFormBean = InternalUtils.wrapFormBean( beanInstance );
InternalUtils.setForwardedFormBean( ( ServletRequest ) request, wrappedFormBean );
}
_delegate.processAction( event );
// Tell the faces process cycle that we're done... stop the life cycle
if (request instanceof ServletRequest) {
ServletRequest servletRequest = (ServletRequest) request;
String actionURI = (String) servletRequest.getAttribute(PageFlowNavigationHandler.ALREADY_FORWARDED_ATTR);
if (actionURI != null) {
throw new AbortProcessingException("PageFlowNavigationHandler forwarded to: " + actionURI);
}
}
}
}