01: /*
02: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
03: * Copyright (C) 2002-2005 NextApp, Inc.
04: *
05: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
06: *
07: * The contents of this file are subject to the Mozilla Public License Version
08: * 1.1 (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: * http://www.mozilla.org/MPL/
11: *
12: * Software distributed under the License is distributed on an "AS IS" basis,
13: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14: * for the specific language governing rights and limitations under the
15: * License.
16: *
17: * Alternatively, the contents of this file may be used under the terms of
18: * either the GNU General Public License Version 2 or later (the "GPL"), or
19: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20: * in which case the provisions of the GPL or the LGPL are applicable instead
21: * of those above. If you wish to allow use of your version of this file only
22: * under the terms of either the GPL or the LGPL, and not to allow others to
23: * use your version of this file under the terms of the MPL, indicate your
24: * decision by deleting the provisions above and replace them with the notice
25: * and other provisions required by the GPL or the LGPL. If you do not delete
26: * the provisions above, a recipient may use your version of this file under
27: * the terms of any one of the MPL, the GPL or the LGPL.
28: */
29:
30: package nextapp.echo2.webrender.service;
31:
32: import java.io.IOException;
33:
34: import javax.servlet.http.HttpServletResponse;
35:
36: import nextapp.echo2.webrender.Connection;
37: import nextapp.echo2.webrender.ContentType;
38: import nextapp.echo2.webrender.Service;
39: import nextapp.echo2.webrender.WebRenderServlet;
40:
41: /**
42: * A <code>Service</code> which renders a 400 (Bad Request) with the message
43: * "Session Expired".
44: */
45: public class SessionExpiredService implements Service {
46:
47: /**
48: * Singleton instance.
49: */
50: public static final Service INSTANCE = new SessionExpiredService();
51:
52: /**
53: * @see nextapp.echo2.webrender.Service#getId()
54: */
55: public String getId() {
56: return WebRenderServlet.SERVICE_ID_SESSION_EXPIRED;
57: }
58:
59: /**
60: * @see nextapp.echo2.webrender.Service#getVersion()
61: */
62: public int getVersion() {
63: return DO_NOT_CACHE;
64: }
65:
66: /**
67: * @see nextapp.echo2.webrender.Service#service(nextapp.echo2.webrender.Connection)
68: */
69: public void service(Connection conn) throws IOException {
70: conn.setContentType(ContentType.TEXT_HTML);
71: conn.getResponse()
72: .setStatus(HttpServletResponse.SC_BAD_REQUEST);
73: conn.getWriter().write("Session Expired");
74: }
75: }
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