1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.util.servlet.filters;
21  
22  import com.liferay.util.servlet.Header;
23  import com.liferay.util.servlet.ServletResponseUtil;
24  
25  import java.io.IOException;
26  
27  import java.util.List;
28  import java.util.Map;
29  
30  import javax.servlet.http.HttpServletResponse;
31  
32  /**
33   * <a href="CacheResponseUtil.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Alexander Chow
36   *
37   */
38  public class CacheResponseUtil {
39  
40      public static void addHeaders(
41              HttpServletResponse response, Map<String, List<Header>> headers)
42          throws IOException {
43  
44          for (Map.Entry<String, List<Header>> entry : headers.entrySet()) {
45              String headerKey = entry.getKey();
46              List<Header> headerValues = entry.getValue();
47  
48              for (Header header : headerValues) {
49                  int type = header.getType();
50  
51                  if (type == Header.DATE_TYPE) {
52                      response.addDateHeader(headerKey, header.getDateValue());
53                  }
54                  else if (type == Header.INTEGER_TYPE) {
55                      response.addIntHeader(headerKey, header.getIntValue());
56                  }
57                  else if (type == Header.STRING_TYPE) {
58                      response.addHeader(headerKey, header.getStringValue());
59                  }
60              }
61          }
62      }
63  
64      public static void write(
65              HttpServletResponse response, CacheResponseData cacheResponseData)
66          throws IOException {
67  
68          addHeaders(response, cacheResponseData.getHeaders());
69  
70          response.setContentType(cacheResponseData.getContentType());
71  
72          ServletResponseUtil.write(response, cacheResponseData.getData());
73      }
74  
75  }