1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.List;
31  import java.util.Map;
32  
33  import javax.servlet.http.HttpServletResponse;
34  
35  /**
36   * <a href="CacheResponseUtil.java.html"><b><i>View Source</i></b></a>
37   *
38   * @author Alexander Chow
39   *
40   */
41  public class CacheResponseUtil {
42  
43      public static void addHeaders(
44          HttpServletResponse response, Map<String, List<Header>> headers) {
45  
46          for (Map.Entry<String, List<Header>> entry : headers.entrySet()) {
47              String headerKey = entry.getKey();
48              List<Header> headerValues = entry.getValue();
49  
50              for (Header header : headerValues) {
51                  int type = header.getType();
52  
53                  if (type == Header.DATE_TYPE) {
54                      response.addDateHeader(headerKey, header.getDateValue());
55                  }
56                  else if (type == Header.INTEGER_TYPE) {
57                      response.addIntHeader(headerKey, header.getIntValue());
58                  }
59                  else if (type == Header.STRING_TYPE) {
60                      response.addHeader(headerKey, header.getStringValue());
61                  }
62              }
63          }
64      }
65  
66      public static void write(
67              HttpServletResponse response, CacheResponseData cacheResponseData)
68          throws IOException {
69  
70          addHeaders(response, cacheResponseData.getHeaders());
71  
72          response.setContentType(cacheResponseData.getContentType());
73  
74          ServletResponseUtil.write(response, cacheResponseData.getData());
75      }
76  
77  }