1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.util.comparator;
16  
17  import com.liferay.portal.kernel.util.OrderByComparator;
18  import com.liferay.portal.model.Layout;
19  
20  /**
21   * <a href="LayoutPriorityComparator.java.html"><b><i>View Source</i></b></a>
22   *
23   * @author Brian Wing Shun Chan
24   */
25  public class LayoutPriorityComparator extends OrderByComparator {
26  
27      public static String ORDER_BY_ASC = "priority ASC";
28  
29      public static String[] ORDER_BY_FIELDS = {"priority"};
30  
31      public LayoutPriorityComparator(Layout layout, boolean lessThan) {
32          _layout = layout;
33          _lessThan = lessThan;
34      }
35  
36      public int compare(Object obj1, Object obj2) {
37          Layout layout1 = (Layout)obj1;
38          Layout layout2 = (Layout)obj2;
39  
40          int priority1 = layout1.getPriority();
41          int priority2 = layout2.getPriority();
42  
43          if (priority1 > priority2) {
44              return 1;
45          }
46          else if (priority1 < priority2) {
47              return -1;
48          }
49          else {
50              if (_layout.equals(layout1)) {
51                  if (_lessThan) {
52                      return 1;
53                  }
54                  else {
55                      return -1;
56                  }
57              }
58              else if (_layout.equals(layout2)) {
59                  if (_lessThan) {
60                      return -1;
61                  }
62                  else {
63                      return 1;
64                  }
65              }
66  
67              return 0;
68          }
69      }
70  
71      public String getOrderBy() {
72          return ORDER_BY_ASC;
73      }
74  
75      public String[] getOrderByFields() {
76          return ORDER_BY_FIELDS;
77      }
78  
79      public boolean isAscending() {
80          return true;
81      }
82  
83      private Layout _layout;
84      private boolean _lessThan;
85  
86  }