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1   /*
2    * $Source$
3    * $Revision$
4    *
5    * Copyright (C) 2000 William Chesters
6    *
7    * Part of Melati (http://melati.org), a framework for the rapid
8    * development of clean, maintainable web applications.
9    *
10   * Melati is free software; Permission is granted to copy, distribute
11   * and/or modify this software under the terms either:
12   *
13   * a) the GNU General Public License as published by the Free Software
14   *    Foundation; either version 2 of the License, or (at your option)
15   *    any later version,
16   *
17   *    or
18   *
19   * b) any version of the Melati Software License, as published
20   *    at http://melati.org
21   *
22   * You should have received a copy of the GNU General Public License and
23   * the Melati Software License along with this program;
24   * if not, write to the Free Software Foundation, Inc.,
25   * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26   * GNU General Public License and visit http://melati.org to obtain the
27   * Melati Software License.
28   *
29   * Feel free to contact the Developers of Melati (http://melati.org),
30   * if you would like to work out a different arrangement than the options
31   * outlined here.  It is our intention to allow Melati to be used by as
32   * wide an audience as possible.
33   *
34   * This program is distributed in the hope that it will be useful,
35   * but WITHOUT ANY WARRANTY; without even the implied warranty of
36   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
37   * GNU General Public License for more details.
38   *
39   * Contact details for copyright holder:
40   *
41   *     William Chesters <williamc At paneris.org>
42   *     http://paneris.org/~williamc
43   *     Obrechtstraat 114, 2517VX Den Haag, The Netherlands
44   */
45  
46  package org.melati.util;
47  
48  import javax.servlet.http.HttpServletRequest;
49  import javax.servlet.http.HttpSession;
50  
51  /**
52   * Thrown should a {@link ReconstructedHttpServletRequest} not match the 
53   * stored parameters of the original request.
54   *
55   * @author WilliamC@paneris.org
56   * 
57   */
58  public class ReconstructedHttpServletRequestMismatchException
59      extends MelatiException {
60    private static final long serialVersionUID = 1L;
61  
62    /** The stored originating parameters. */
63    public HttpServletRequestParameters stored;
64    /** The current request. */
65    public HttpServletRequest newRequest;
66  
67    /** Constructor. */
68    public ReconstructedHttpServletRequestMismatchException(
69        HttpServletRequestParameters stored, HttpServletRequest newRequest) {
70      this.stored = stored;
71      this.newRequest = newRequest;
72    }
73  
74  
75    /**
76     * @return The detailed message.
77     * @see java.lang.Throwable#getMessage()
78     */
79    public String getMessage() {
80      HttpSession session = newRequest.getSession(false);
81      return
82          "New HttpServletRequest " +
83          HttpUtil.getRelativeRequestURL(newRequest) + 
84          " (session " + (session == null ? null : session.getId()) + ") " +
85          "is incompatible with stored request " + stored.requestURL +
86          " (session " + stored.sessionID + ")";
87    }
88  }