| /* |
| * $Id$ |
| * |
| * 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.struts2.jsf; |
| |
| import javax.faces.context.FacesContext; |
| |
| import com.opensymphony.xwork2.ActionContext; |
| import com.opensymphony.xwork2.ActionInvocation; |
| import com.opensymphony.xwork2.interceptor.Interceptor; |
| |
| /** |
| * Translates JSF phases into individual interceptors, and adapts their expected |
| * workflow to Action 2 |
| */ |
| public class FacesInterceptor extends FacesSupport implements Interceptor { |
| |
| private static final long serialVersionUID = -5418255964277566516L; |
| |
| /** |
| * Not used |
| */ |
| public void init() { |
| } |
| |
| /** |
| * Adapts the phase workflow to Action 2 |
| * |
| * @param invocation |
| * The action invocation |
| * @return The string result code |
| */ |
| public String intercept(ActionInvocation invocation) throws Exception { |
| |
| if (isFacesEnabled(invocation.getInvocationContext())) { |
| FacesContext context = FacesContext.getCurrentInstance(); |
| |
| if (context.getRenderResponse()) { |
| return invocation.invoke(); |
| } else { |
| |
| String viewId = invocation.getProxy().getNamespace() + '/' |
| + invocation.getProxy().getActionName(); |
| executePhase(viewId, context); |
| |
| if (context.getResponseComplete()) { |
| // Abort the chain as the result is done |
| return null; |
| } else { |
| if (invocation.getResultCode() != null) { |
| return invocation.getResultCode(); |
| } else { |
| return invocation.invoke(); |
| } |
| } |
| } |
| } else { |
| return invocation.invoke(); |
| } |
| } |
| |
| /** |
| * Executes the specific phase. The phase id is constructed as a composite |
| * of the namespace and action name. |
| * |
| * @param viewId |
| * The view id |
| * @param facesContext |
| * The current faces context |
| * @return True if the next phases should be skipped |
| */ |
| protected boolean executePhase(String viewId, FacesContext facesContext) { |
| return false; |
| } |
| |
| /** |
| * Not used |
| */ |
| public void destroy() { |
| } |
| |
| /** |
| * Determines whether to process this request with the JSF phases |
| * |
| * @param ctx The current action context |
| * @return True if it is a faces-enabled request |
| */ |
| protected boolean isFacesEnabled(ActionContext ctx) { |
| return ctx.get(FACES_ENABLED) != null; |
| } |
| |
| } |