1   /**
2    * Copyright (c) 2000-2009 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.util;
24  
25  import com.liferay.portal.kernel.configuration.Configuration;
26  import com.liferay.portal.kernel.configuration.ConfigurationFactoryUtil;
27  import com.liferay.portal.kernel.util.StringPool;
28  import com.liferay.portal.kernel.util.StringUtil;
29  import com.liferay.portal.kernel.util.Validator;
30  
31  /**
32   * <a href="ContentTypeUtil.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Alexander Chow
35   *
36   */
37  public class ContentTypeUtil {
38  
39      public static String getContentType(String fileName) {
40          return _instance._getContentType(fileName);
41      }
42  
43      private ContentTypeUtil() {
44          _configuration = ConfigurationFactoryUtil.getConfiguration(
45              ContentTypeUtil.class.getClassLoader(), PropsFiles.CONTENT_TYPES);
46      }
47  
48      private String _getContentType(String fileName) {
49          String[] array = StringUtil.split(fileName, StringPool.PERIOD);
50  
51          String ext = array[array.length-1];
52  
53          String type = _configuration.get(ext);
54  
55          if (Validator.isNull(type)) {
56              type = "application/octet-stream";
57          }
58  
59          return type;
60      }
61  
62      private static ContentTypeUtil _instance = new ContentTypeUtil();
63  
64      private Configuration _configuration;
65  
66  }