RequestAttributeMap


1   /*
2    * Copyright 2004 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   * $Header:$
17   */
18  package org.apache.beehive.netui.script.el.util;
19  
20  import java.util.Enumeration  ;
21  import javax.servlet.ServletRequest  ;
22  
23  /**
24   *
25   */
26  public class RequestAttributeMap
27      extends AbstractAttributeMap
28      implements BindingContext {
29  
30      private ServletRequest   _request = null;
31  
32      public RequestAttributeMap(ServletRequest   request) {
33          _request = request;
34      }
35  
36      public Object   unwrap() {
37          return _request;
38      }
39  
40      protected Object   getValue(Object   key) {
41          return _request.getAttribute(key.toString());
42      }
43  
44      protected Object   putValue(Object   key, Object   value) {
45          String   strKey = key.toString();
46          Object   prev = _request.getAttribute(strKey);
47  
48          _request.setAttribute(strKey, value);
49  
50          return prev;
51      }
52  
53      protected Enumeration   getKeysEnumeration() {
54          return _request.getAttributeNames();
55      }
56  }
57

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