1   /**
2    * Copyright (c) 2000-2007 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 com.liferay.util.servlet.Header;
26  import com.liferay.util.servlet.ServletResponseUtil;
27  
28  import java.io.IOException;
29  
30  import java.util.Iterator;
31  import java.util.List;
32  import java.util.Map;
33  
34  import javax.servlet.http.HttpServletResponse;
35  
36  /**
37   * <a href="CacheResponseUtil.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Alexander Chow
40   *
41   */
42  public class CacheResponseUtil {
43  
44      public static void write(HttpServletResponse res, CacheResponseData data)
45          throws IOException {
46  
47          Map headers = data.getHeaders();
48  
49          Iterator itr = headers.keySet().iterator();
50  
51          while (itr.hasNext()) {
52              String headerKey = (String)itr.next();
53  
54              List headerValues = (List)headers.get(headerKey);
55  
56              for (int i = 0; i < headerValues.size(); i++) {
57                  Header header = (Header)headerValues.get(i);
58  
59                  int type = header.getType();
60  
61                  if (type == Header.DATE_TYPE) {
62                      res.addDateHeader(headerKey, header.getDateValue());
63                  }
64                  else if (type == Header.INTEGER_TYPE) {
65                      res.addIntHeader(headerKey, header.getIntValue());
66                  }
67                  else if (type == Header.STRING_TYPE) {
68                      res.addHeader(headerKey, header.getStringValue());
69                  }
70              }
71          }
72  
73          res.setContentType(data.getContentType());
74  
75          ServletResponseUtil.write(res, data.getData());
76      }
77  
78  }