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


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 com.caucho.util.L10N;
32
33 import javax.servlet.Filter JavaDoc;
34 import javax.servlet.FilterChain JavaDoc;
35
36 /**
37  * A filter chain factory which adds a filter.
38  */
39 public class FilterChainFilterBuilder extends FilterChainBuilder {
40   private static L10N L = new L10N(FilterChainFilterBuilder.class);
41
42   private Filter JavaDoc _filter;
43   
44   /**
45    * Adds a filter to the chain.
46    */
47   public FilterChainFilterBuilder()
48   {
49   }
50   
51   /**
52    * Adds a filter to the chain.
53    */
54   public FilterChainFilterBuilder(Filter JavaDoc filter)
55   {
56     _filter = filter;
57   }
58
59   /**
60    * Returns the filter.
61    */
62   public Filter JavaDoc getFilter()
63   {
64     return _filter;
65   }
66
67   /**
68    * Sets the filter.
69    */
70   public void setFilter(Filter JavaDoc filter)
71   {
72     _filter = filter;
73   }
74   
75   /**
76    * Builds a filter chain dynamically based on the invocation.
77    *
78    * @param next the next filter in the chain.
79    * @param invocation the request's invocation.
80    */
81   public FilterChain JavaDoc build(FilterChain JavaDoc next, Invocation invocation)
82   {
83     return new FilterFilterChain(next, _filter);
84   }
85 }
86
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