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Java > Open Source Codes > com > caucho > server > dispatch > FilterFilterChain


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.dispatch;
30
31 import javax.servlet.Filter JavaDoc;
32 import javax.servlet.FilterChain JavaDoc;
33 import javax.servlet.ServletException JavaDoc;
34 import javax.servlet.ServletRequest JavaDoc;
35 import javax.servlet.ServletResponse JavaDoc;
36 import java.io.IOException JavaDoc;
37
38 /**
39  * Represents the next filter in a filter chain. The final filter will
40  * be the servlet itself.
41  */
42 public class FilterFilterChain implements FilterChain JavaDoc {
43   // Next filter chain
44 private FilterChain JavaDoc _next;
45   
46   // filter
47 private Filter JavaDoc _filter;
48
49   /**
50    * Creates a new FilterChainFilter.
51    *
52    * @param next the next filterChain
53    * @param filter the user's filter
54    */
55   public FilterFilterChain(FilterChain JavaDoc next, Filter JavaDoc filter)
56   {
57     _next = next;
58     _filter = filter;
59   }
60   
61   /**
62    * Invokes the next filter in the chain or the final servlet at
63    * the end of the chain.
64    *
65    * @param request the servlet request
66    * @param response the servlet response
67    * @since Servlet 2.3
68    */
69   public void doFilter(ServletRequest JavaDoc request,
70                        ServletResponse JavaDoc response)
71     throws ServletException JavaDoc, IOException JavaDoc
72   {
73     _filter.doFilter(request, response, _next);
74   }
75 }
76
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