1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.util.servlet.filters;
24  
25  import java.util.Collections;
26  import java.util.Enumeration;
27  import java.util.LinkedHashMap;
28  import java.util.Map;
29  
30  import javax.servlet.FilterConfig;
31  import javax.servlet.ServletContext;
32  
33  /**
34   * <a href="DynamicFilterConfig.java.html"><b><i>View Source</i></b></a>
35   *
36   * @author Brian Wing Shun Chan
37   * @author Bruno Farache
38   *
39   */
40  public class DynamicFilterConfig implements FilterConfig {
41  
42      public DynamicFilterConfig(FilterConfig config) {
43          Enumeration<String> enu = config.getInitParameterNames();
44  
45          while (enu.hasMoreElements()) {
46              String name = enu.nextElement();
47  
48              addInitParameter(name, config.getInitParameter(name));
49          }
50      }
51  
52      public DynamicFilterConfig(String filterName, ServletContext ctx) {
53          _filterName = filterName;
54          _ctx = ctx;
55      }
56  
57      public String getFilterName() {
58          return _filterName;
59      }
60  
61      public ServletContext getServletContext() {
62          return _ctx;
63      }
64  
65      public void addInitParameter(String name, String value) {
66          _parameters.put(name, value);
67      }
68  
69      public String getInitParameter(String name) {
70          return _parameters.get(name);
71      }
72  
73      public Enumeration<String> getInitParameterNames() {
74          return Collections.enumeration(_parameters.keySet());
75      }
76  
77      private String _filterName;
78      private ServletContext _ctx;
79      private Map<String, String> _parameters =
80          new LinkedHashMap<String, String>();
81  
82  }