| /* |
| * $Id$ |
| * |
| * 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 com.opensymphony.xwork2.ActionContext; |
| import com.opensymphony.xwork2.config.entities.ActionConfig; |
| import com.opensymphony.xwork2.config.entities.ResultConfig; |
| |
| import javax.faces.application.NavigationHandler; |
| import javax.faces.context.FacesContext; |
| import java.util.Map; |
| |
| /** |
| * Overrides the JFS navigation by delegating the result to handling by the core |
| * result code lookup and execution. If a result cannot be found, the previous |
| * NavigationHandler is called. |
| */ |
| public class StrutsNavigationHandler extends NavigationHandler { |
| |
| private NavigationHandler parent; |
| |
| /** |
| * Creates the handler |
| * |
| * @param handler The old NavigationHandler to possibly delegate to |
| */ |
| public StrutsNavigationHandler(NavigationHandler handler) { |
| this.parent = handler; |
| } |
| |
| /** |
| * Stores any outcomes as the result code, failing over to the old |
| * NavigationHandler |
| * |
| * @param facesContext The faces context |
| * @param fromAction The action we are coming from |
| * @param outcome The String return code |
| */ |
| @Override |
| public void handleNavigation(FacesContext facesContext, String fromAction, String outcome) { |
| ActionContext ctx = ActionContext.getContext(); |
| if (outcome != null) { |
| if (ctx == null || ctx.getActionInvocation() == null) { |
| delegateToParentNavigation(facesContext, fromAction, outcome); |
| } else { |
| ActionConfig config = ctx.getActionInvocation().getProxy().getConfig(); |
| Map results = config.getResults(); |
| |
| ResultConfig resultConfig = null; |
| |
| synchronized (config) { |
| try { |
| resultConfig = (ResultConfig) results.get(outcome); |
| } catch (NullPointerException e) { |
| } |
| if (resultConfig == null) { |
| // If no result is found for the given resultCode, try to get a wildcard '*' match. |
| resultConfig = (ResultConfig) results.get("*"); |
| } |
| } |
| if (resultConfig != null) { |
| ctx.getActionInvocation().setResultCode(outcome); |
| } else { |
| delegateToParentNavigation(facesContext, fromAction, outcome); |
| } |
| } |
| } |
| } |
| |
| private void delegateToParentNavigation(FacesContext facesContext, String fromAction, String outcome) { |
| // Failing over to parent handler |
| parent.handleNavigation(facesContext, fromAction, outcome); |
| } |
| |
| } |