LogOutAction


1   /*
2    * Copyright 2001,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  
18  package org.apache.webapp.admin;
19  
20  
21  import java.io.IOException  ;
22  import java.util.Iterator  ;
23  import java.util.List  ;
24  import java.util.Locale  ;
25  import javax.servlet.ServletException  ;
26  import javax.servlet.http.HttpServletRequest  ;
27  import javax.servlet.http.HttpServletResponse  ;
28  import javax.servlet.http.HttpSession  ;
29  import org.apache.struts.action.Action;
30  import org.apache.struts.action.ActionErrors;
31  import org.apache.struts.action.ActionForm;
32  import org.apache.struts.action.ActionForward;
33  import org.apache.struts.action.ActionMapping;
34  
35  
36  /**
37   * Implementation of <strong>Action</strong> that logs out of the current
38   * session and returns to the main menu (which will trigger the login form).
39   *
40   * @author Craig R. McClanahan
41   * @version $Revision: 1.3 $ $Date: 2004/10/18 06:37:53 $
42   */
43  
44  public final class LogOutAction extends Action {
45  
46  
47      // --------------------------------------------------------- Public Methods
48  
49  
50      /**
51       * Process the specified HTTP request, and create the corresponding HTTP
52       * response (or forward to another web component that will create it).
53       * Return an <code>ActionForward</code> instance describing where and how
54       * control should be forwarded, or <code>null</code> if the response has
55       * already been completed.
56       *
57       * @param mapping The ActionMapping used to select this instance
58       * @param actionForm The optional ActionForm bean for this request (if any)
59       * @param request The HTTP request we are processing
60       * @param response The HTTP response we are creating
61       *
62       * @exception IOException if an input/output error occurs
63       * @exception ServletException if a servlet exception occurs
64       */
65      public ActionForward execute(ActionMapping mapping,
66                                   ActionForm form,
67                                   HttpServletRequest   request,
68                                   HttpServletResponse   response)
69          throws IOException  , ServletException   {
70  
71          // Invalidate the current session and create a new one
72          HttpSession   session = request.getSession();
73          session.invalidate();
74          session = request.getSession(true);
75  
76          // Forward control back to the main menu
77          return (mapping.findForward("Main Menu"));
78  
79      }
80  
81  
82  }
83
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