KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jresearch > gossip > actions > RelayAction


1 /*
2  * $$Id: RelayAction.java,v 1.3 2005/06/07 12:32:34 bel70 Exp $$
3  *
4  * ***** BEGIN LICENSE BLOCK *****
5  * The contents of this file are subject to the Mozilla Public License
6  * Version 1.1 (the "License"); you may not use this file except in
7  * compliance with the License. You may obtain a copy of the License
8  * at http://www.mozilla.org/MPL/
9  *
10  * Software distributed under the License is distributed on an "AS IS"
11  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
12  * the License for the specific language governing rights and
13  * limitations under the License.
14  *
15  * The Original Code is JGossip forum code.
16  *
17  * The Initial Developer of the Original Code is the JResearch, Org.
18  * Portions created by the Initial Developer are Copyright (C) 2004
19  * the Initial Developer. All Rights Reserved.
20  *
21  * Contributor(s):
22  * Dmitry Belov <bel@jresearch.org>
23  *
24  * ***** END LICENSE BLOCK ***** */
25 /*
26  * Created on 27.05.2004
27  *
28  */
29 package org.jresearch.gossip.actions;
30
31 import javax.servlet.http.HttpServletRequest JavaDoc;
32 import javax.servlet.http.HttpServletResponse JavaDoc;
33
34 import org.apache.struts.action.Action;
35 import org.apache.struts.action.ActionForm;
36 import org.apache.struts.action.ActionForward;
37 import org.apache.struts.action.ActionMapping;
38 import org.jresearch.gossip.exception.SystemException;
39
40 /**
41  * @author dbelov
42  *
43  */
44 public class RelayAction extends Action {
45
46     public static final String JavaDoc DISPATCH_PARAM = "dispatch";
47
48     /*
49      * (non-Javadoc)
50      *
51      * @see org.apache.struts.action.Action#execute(org.apache.struts.action.ActionMapping,
52      * org.apache.struts.action.ActionForm,
53      * javax.servlet.http.HttpServletRequest,
54      * javax.servlet.http.HttpServletResponse)
55      */
56     public ActionForward execute(ActionMapping mapping, ActionForm form,
57             HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response)
58             throws Exception JavaDoc {
59         String JavaDoc dispatch = request.getParameter(DISPATCH_PARAM);
60         if (dispatch == null || dispatch.equals("")) {
61             throw new SystemException(new NullPointerException JavaDoc(
62                     "dispatch param can't be empty"));
63         }
64         ActionForward forward = mapping.findForward(request
65                 .getParameter(DISPATCH_PARAM));
66         if (forward == null) {
67             throw new SystemException(new NullPointerException JavaDoc(" forward '"
68                     + dispatch + "' not found"));
69         }
70         return forward;
71
72     }
73
74 }
Popular Tags