1 /* 2 * $Id: ExecuteForwardCommand.java 471754 2006-11-06 14:55:09Z husted $ 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 package org.apache.struts.chain.commands; 22 23 import org.apache.commons.chain.Command; 24 import org.apache.struts.chain.contexts.ActionContext; 25 import org.apache.struts.config.ForwardConfig; 26 27 /** 28 * <p>Look up and execute a commons-chain <code>Command</code> based on 29 * properties of the ActionContext's <code>forwardConfig</code> property. 30 * </p> 31 */ 32 public class ExecuteForwardCommand extends ExecuteCommand { 33 /** 34 * <p>Return the command specified by the <code>command</code> and 35 * <code>catalog</code> properties of the <code>forwardConfig</code> 36 * property of the given <code>ActionContext</code>. If 37 * <code>forwardConfig</code> is null, return null.</p> 38 * 39 * @param context Our ActionContext 40 * @return Command to execute or null 41 */ 42 protected Command getCommand(ActionContext context) { 43 ForwardConfig forwardConfig = context.getForwardConfig(); 44 45 if (forwardConfig == null) { 46 return null; 47 } 48 49 return getCommand(forwardConfig.getCommand(), forwardConfig.getCatalog()); 50 } 51 52 /** 53 * <p> Determine whether the forwardConfig should be processed. </p> 54 * 55 * @param context The ActionContext we are processing 56 * @return <p><code>true</code> if the given <code>ActionContext</code> 57 * has a non-null <code>forwardConfig</code> property.</p> 58 */ 59 protected boolean shouldProcess(ActionContext context) { 60 return (context.getForwardConfig() != null); 61 } 62 }