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Java > Open Source Codes > com > caucho > server > security > ErrorFilter


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.server.security;
30
31 import javax.servlet.Filter JavaDoc;
32 import javax.servlet.FilterChain JavaDoc;
33 import javax.servlet.FilterConfig JavaDoc;
34 import javax.servlet.ServletException JavaDoc;
35 import javax.servlet.ServletRequest JavaDoc;
36 import javax.servlet.ServletResponse JavaDoc;
37 import javax.servlet.http.HttpServletResponse JavaDoc;
38 import java.io.IOException JavaDoc;
39
40 public class ErrorFilter implements Filter JavaDoc {
41   private FilterConfig JavaDoc _config;
42   private int _errorCode;
43   private ServletException JavaDoc _exception;
44
45   public void setErrorCode(int code)
46   {
47     _errorCode = code;
48   }
49
50   public void setException(ServletException JavaDoc exception)
51   {
52     _exception = exception;
53   }
54   
55   public void init(FilterConfig JavaDoc config)
56   {
57     _config = config;
58   }
59
60   public void destroy()
61   {
62   }
63
64   public void doFilter(ServletRequest JavaDoc request,
65                        ServletResponse JavaDoc response,
66                        FilterChain JavaDoc chain)
67     throws ServletException JavaDoc, IOException JavaDoc
68   {
69     HttpServletResponse JavaDoc res = (HttpServletResponse JavaDoc) response;
70
71     if (_exception != null)
72       throw _exception;
73     else if (_errorCode != 0)
74       res.sendError(_errorCode, null);
75     else
76       res.sendError(500, "configuration error");
77   }
78 }
79
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