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1   /*
2    * $Id$
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.servlet;
22  
23  import org.apache.struts.action.Action;
24  import org.apache.struts.action.ActionForm;
25  import org.apache.struts.action.ActionMapping;
26  import org.apache.struts.chain.commands.AbstractExecuteAction;
27  import org.apache.struts.chain.contexts.ActionContext;
28  import org.apache.struts.chain.contexts.ServletActionContext;
29  import org.apache.struts.config.ActionConfig;
30  import org.apache.struts.config.ForwardConfig;
31  
32  /**
33   * <p>Invoke the appropriate <code>Action</code> for this request, and cache
34   * the returned <code>ActionForward</code>.</p>
35   *
36   * @version $Rev$ $Date: 2005-05-07 12:11:38 -0400 (Sat, 07 May 2005)
37   *          $
38   */
39  public class ExecuteAction extends AbstractExecuteAction {
40      // ------------------------------------------------------- Protected Methods
41  
42      /**
43       * <p>Execute the specified <code>Action</code>, and return the resulting
44       * <code>ActionForward</code>.</p>
45       *
46       * @param context      The <code>Context</code> for this request
47       * @param action       The <code>Action</code> to be executed
48       * @param actionConfig The <code>ActionConfig</code> defining this action
49       * @param actionForm   The <code>ActionForm</code> (if any) for this
50       *                     action
51       * @throws Exception if thrown by the <code>Action</code>
52       */
53      protected ForwardConfig execute(ActionContext context, Action action,
54          ActionConfig actionConfig, ActionForm actionForm)
55          throws Exception {
56          ServletActionContext saContext = (ServletActionContext) context;
57  
58          return (action.execute((ActionMapping) actionConfig, actionForm,
59              saContext.getRequest(), saContext.getResponse()));
60      }
61  }