org.springframework.faces.webflow.JsfFlowHandlerAdapter Maven / Gradle / Ivy
/*
* Copyright 2004-2012 the original author or authors.
*
* Licensed 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.springframework.faces.webflow;
import javax.faces.context.FacesContext;
import javax.faces.context.PartialResponseWriter;
import javax.faces.lifecycle.Lifecycle;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.js.ajax.AjaxHandler;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.webflow.mvc.servlet.FlowHandlerAdapter;
/**
* An extension of {@link FlowHandlerAdapter} that replaces the default {@link AjaxHandler} instance with a
* {@link JsfAjaxHandler}.
*
* @author Rossen Stoyanchev
* @since 2.2.0
*/
public class JsfFlowHandlerAdapter extends FlowHandlerAdapter {
public void afterPropertiesSet() throws Exception {
boolean isAjaxHandlerConfigured = (getAjaxHandler() != null);
super.afterPropertiesSet();
if (!isAjaxHandlerConfigured) {
JsfAjaxHandler handler = new JsfAjaxHandler();
handler.setApplicationContext(getApplicationContext());
setAjaxHandler(handler);
}
}
public ModelAndView handle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
FacesContextHelper helper = new FacesContextHelper();
try {
FacesContext facesContext = helper.getFacesContext(getServletContext(), request, response);
request.setAttribute(FlowFacesContextLifecycleListener.DEFAULT_FACES_CONTEXT, facesContext);
return super.handle(request, response, handler);
} finally {
request.removeAttribute(FlowFacesContextLifecycleListener.DEFAULT_FACES_CONTEXT);
helper.releaseIfNecessary();
}
}
}