1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.context.servlet;
20
21 import java.util.Enumeration;
22
23 import javax.servlet.ServletRequest;
24
25 import org.apache.myfaces.util.AbstractAttributeMap;
26
27 /**
28 * ServletRequest parameters as Map.
29 *
30 * @author Anton Koinov (latest modification by $Author$)
31 * @version $Revision$ $Date$
32 */
33 public final class RequestParameterMap extends AbstractAttributeMap<String>
34 {
35 private final ServletRequest _servletRequest;
36
37 RequestParameterMap(final ServletRequest servletRequest)
38 {
39 _servletRequest = servletRequest;
40 }
41
42 @Override
43 protected String getAttribute(final String key)
44 {
45 return _servletRequest.getParameter(key);
46 }
47
48 @Override
49 protected void setAttribute(final String key, final String value)
50 {
51 throw new UnsupportedOperationException(
52 "Cannot set ServletRequest Parameter");
53 }
54
55 @Override
56 protected void removeAttribute(final String key)
57 {
58 throw new UnsupportedOperationException(
59 "Cannot remove ServletRequest Parameter");
60 }
61
62 @Override
63 @SuppressWarnings("unchecked")
64 protected Enumeration<String> getAttributeNames()
65 {
66 return _servletRequest.getParameterNames();
67 }
68 }