1   /**
2    * Copyright (c) 2000-2008 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.portal.webdav.methods;
24  
25  import com.liferay.portal.webdav.Resource;
26  import com.liferay.portal.webdav.WebDAVException;
27  import com.liferay.portal.webdav.WebDAVRequest;
28  import com.liferay.portal.webdav.WebDAVStorage;
29  import com.liferay.util.servlet.ServletResponseUtil;
30  
31  import java.io.InputStream;
32  
33  import javax.servlet.http.HttpServletResponse;
34  
35  import org.apache.commons.logging.Log;
36  import org.apache.commons.logging.LogFactory;
37  
38  /**
39   * <a href="GetMethodImpl.java.html"><b><i>View Source</i></b></a>
40   *
41   * @author Brian Wing Shun Chan
42   * @author Alexander Chow
43   *
44   */
45  public class GetMethodImpl implements Method {
46  
47      public int process(WebDAVRequest webDavRequest) throws WebDAVException {
48          InputStream is = null;
49  
50          try {
51              WebDAVStorage storage = webDavRequest.getWebDAVStorage();
52              HttpServletResponse response =
53                  webDavRequest.getHttpServletResponse();
54  
55              Resource resource = storage.getResource(webDavRequest);
56  
57              if (resource != null) {
58                  try {
59                      is = resource.getContentAsStream();
60                  }
61                  catch (Exception e) {
62                      if (_log.isWarnEnabled()) {
63                          _log.warn(e.getMessage());
64                      }
65                  }
66              }
67  
68              int status = HttpServletResponse.SC_NOT_FOUND;
69  
70              if (is != null) {
71                  try {
72                      ServletResponseUtil.write(response, is);
73                  }
74                  catch (Exception e) {
75                      if (_log.isWarnEnabled()) {
76                          _log.warn(e);
77                      }
78                  }
79  
80                  status = HttpServletResponse.SC_OK;
81              }
82  
83              return status;
84          }
85          catch (Exception e) {
86              throw new WebDAVException(e);
87          }
88          finally {
89              ServletResponseUtil.cleanUp(is);
90          }
91      }
92  
93      private static Log _log = LogFactory.getLog(GetMethodImpl.class);
94  
95  }