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.comparator;
24  
25  import com.liferay.portal.kernel.util.OrderByComparator;
26  import com.liferay.portal.model.Layout;
27  
28  /**
29   * <a href="LayoutPriorityComparator.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class LayoutPriorityComparator extends OrderByComparator {
35  
36      public static String ORDER_BY_ASC = "priority ASC";
37  
38      public LayoutPriorityComparator(Layout layout, boolean lessThan) {
39          _layout = layout;
40          _lessThan = lessThan;
41      }
42  
43      public int compare(Object obj1, Object obj2) {
44          Layout layout1 = (Layout)obj1;
45          Layout layout2 = (Layout)obj2;
46  
47          int priority1 = layout1.getPriority();
48          int priority2 = layout2.getPriority();
49  
50          if (priority1 > priority2) {
51              return 1;
52          }
53          else if (priority1 < priority2) {
54              return -1;
55          }
56          else {
57              if (_layout.equals(layout1)) {
58                  if (_lessThan) {
59                      return 1;
60                  }
61                  else {
62                      return -1;
63                  }
64              }
65              else if (_layout.equals(layout2)) {
66                  if (_lessThan) {
67                      return -1;
68                  }
69                  else {
70                      return 1;
71                  }
72              }
73  
74              return 0;
75          }
76      }
77  
78      public String getOrderBy() {
79          return ORDER_BY_ASC;
80      }
81  
82      private Layout _layout;
83      private boolean _lessThan;
84  
85  }