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.portal.webdav.methods;
21  
22  import com.liferay.portal.webdav.Resource;
23  import com.liferay.portal.webdav.WebDAVException;
24  import com.liferay.portal.webdav.WebDAVRequest;
25  import com.liferay.portal.webdav.WebDAVStorage;
26  
27  import javax.servlet.http.HttpServletResponse;
28  
29  /**
30   * <a href="HeadMethodImpl.java.html"><b><i>View Source</i></b></a>
31   *
32   * @author Brian Wing Shun Chan
33   * @author Alexander Chow
34   *
35   */
36  public class HeadMethodImpl implements Method {
37  
38      public int process(WebDAVRequest webDavRequest) throws WebDAVException {
39          try {
40              WebDAVStorage storage = webDavRequest.getWebDAVStorage();
41              HttpServletResponse response =
42                  webDavRequest.getHttpServletResponse();
43  
44              Resource resource = storage.getResource(webDavRequest);
45  
46              int status = HttpServletResponse.SC_NOT_FOUND;
47  
48              if (resource == null) {
49                  response.sendError(
50                      HttpServletResponse.SC_NOT_FOUND, webDavRequest.getPath());
51              }
52              else {
53                  if (!resource.isCollection()) {
54                      response.setContentLength(resource.getSize());
55                  }
56  
57                  status = HttpServletResponse.SC_OK;
58              }
59  
60              return status;
61          }
62          catch (Exception e) {
63              throw new WebDAVException(e);
64          }
65      }
66  
67  }