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.portlet.documentlibrary.util.comparator;
24  
25  import com.liferay.portal.kernel.util.OrderByComparator;
26  import com.liferay.portlet.documentlibrary.model.DLFileEntry;
27  
28  /**
29   * <a href="FileEntryReadCountComparator.java.html"><b><i>View Source</i></b>
30   * </a>
31   *
32   * @author Brian Wing Shun Chan
33   *
34   */
35  public class FileEntryReadCountComparator extends OrderByComparator {
36  
37      public static String ORDER_BY_ASC = "readCount ASC";
38  
39      public static String ORDER_BY_DESC = "readCount DESC";
40  
41      public static String[] ORDER_BY_FIELDS = {"readCount"};
42  
43      public FileEntryReadCountComparator() {
44          this(false);
45      }
46  
47      public FileEntryReadCountComparator(boolean asc) {
48          _asc = asc;
49      }
50  
51      public int compare(Object obj1, Object obj2) {
52          DLFileEntry fileEntry1 = (DLFileEntry)obj1;
53          DLFileEntry fileEntry2 = (DLFileEntry)obj2;
54  
55          int value = 0;
56  
57          if (fileEntry1.getReadCount() < fileEntry2.getReadCount()) {
58              value = -1;
59          }
60          else if (fileEntry1.getReadCount() > fileEntry2.getReadCount()) {
61              value = 1;
62          }
63  
64          if (_asc) {
65              return value;
66          }
67          else {
68              return -value;
69          }
70      }
71  
72      public String getOrderBy() {
73          if (_asc) {
74              return ORDER_BY_ASC;
75          }
76          else {
77              return ORDER_BY_DESC;
78          }
79      }
80  
81      public String[] getOrderByFields() {
82          return ORDER_BY_FIELDS;
83      }
84  
85      public boolean isAscending() {
86          return _asc;
87      }
88  
89      private boolean _asc;
90  
91  }