LocaleComparator


1   /*
2   * Licensed to the Apache Software Foundation (ASF) under one or more
3   *  contributor license agreements.  The ASF licenses this file to You
4   * under the Apache License, Version 2.0 (the "License"); you may not
5   * use this file except in compliance with the License.
6   * You may obtain a copy of the License at
7   *
8   *     http://www.apache.org/licenses/LICENSE-2.0
9   *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.  For additional information regarding
15  * copyright in this work, please see the NOTICE file in the top level
16  * directory of this distribution.
17  */
18  package org.apache.roller.util;
19  
20  import java.util.Locale  ;
21  import java.util.Comparator  ;
22  import java.io.Serializable  ;
23  
24  public class LocaleComparator implements Comparator  , Serializable  
25  {
26      public int compare(Object   obj1, Object   obj2)
27      {
28          if (obj1 instanceof Locale   && obj2 instanceof Locale  )
29          {
30              Locale   locale1 = (Locale  )obj1;
31              Locale   locale2 = (Locale  )obj2;
32              int compName = locale1.getDisplayName().compareTo(locale2.getDisplayName());
33              if (compName == 0)
34              {
35                  return locale1.toString().compareTo(locale2.toString());
36              }
37              return compName;
38          }
39          return 0;
40      }
41  /* Do Comparators need to implement equals()? -Lance
42      public boolean equals(Object obj)
43      {
44          if (obj instanceof LocaleComparator)
45          {
46              if (obj.equals(this)) return true;
47          }
48          return false;
49      }
50  */
51  }
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