1 /*
2 * $Id: HeaderExtractor.java 1066499 2011-02-02 15:33:34Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.tiles.request.servlet.extractor;
22
23 import java.util.Enumeration;
24
25 import javax.servlet.http.HttpServletRequest;
26 import javax.servlet.http.HttpServletResponse;
27
28 import org.apache.tiles.request.attribute.EnumeratedValuesExtractor;
29
30 /**
31 * Extract header values from an HTTP request.
32 *
33 * @version $Rev: 1066499 $ $Date: 2011-02-03 02:33:34 +1100 (Thu, 03 Feb 2011) $
34 */
35 public class HeaderExtractor implements EnumeratedValuesExtractor {
36
37 /**
38 * The request.
39 */
40 private HttpServletRequest request;
41
42 /**
43 * The response.
44 */
45 private HttpServletResponse response;
46
47 /**
48 * Constructor.
49 *
50 * @param request The request.
51 * @param response The response.
52 */
53 public HeaderExtractor(HttpServletRequest request,
54 HttpServletResponse response) {
55 this.request = request;
56 this.response = response;
57 }
58
59 @SuppressWarnings("unchecked")
60 @Override
61 public Enumeration<String> getKeys() {
62 return request.getHeaderNames();
63 }
64
65 @Override
66 public String getValue(String key) {
67 return request.getHeader(key);
68 }
69
70 @SuppressWarnings("unchecked")
71 @Override
72 public Enumeration<String> getValues(String key) {
73 return request.getHeaders(key);
74 }
75
76 @Override
77 public void setValue(String key, String value) {
78 response.setHeader(key, value);
79 }
80 }