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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.start;
20  
21  import java.io.File;
22  import java.nio.file.Path;
23  import java.text.CollationKey;
24  import java.text.Collator;
25  import java.util.Comparator;
26  
27  /**
28   * Natural Language Sorting
29   */
30  public class NaturalSort
31  {
32      public static class Paths implements Comparator<Path>
33      {
34          private final Collator collator = Collator.getInstance();
35  
36          @Override
37          public int compare(Path o1, Path o2)
38          {
39              CollationKey key1 = collator.getCollationKey(o1.toString());
40              CollationKey key2 = collator.getCollationKey(o2.toString());
41              return key1.compareTo(key2);
42          }
43      }
44  
45      public static class Files implements Comparator<File>
46      {
47          private final Collator collator = Collator.getInstance();
48  
49          @Override
50          public int compare(File o1, File o2)
51          {
52              CollationKey key1 = collator.getCollationKey(o1.getAbsolutePath());
53              CollationKey key2 = collator.getCollationKey(o2.getAbsolutePath());
54              return key1.compareTo(key2);
55          }
56      }
57  
58      public static class Strings implements Comparator<String>
59      {
60          private final Collator collator = Collator.getInstance();
61  
62          @Override
63          public int compare(String o1, String o2)
64          {
65              CollationKey key1 = collator.getCollationKey(o1);
66              CollationKey key2 = collator.getCollationKey(o2);
67              return key1.compareTo(key2);
68          }
69      }
70  }