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1   package org.apache.maven.scm.provider.accurev.util;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   * http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.io.File;
23  import java.io.IOException;
24  
25  public class WorkspaceUtils
26  {
27      public static boolean isSameFile( File file1, String filename2)
28      {
29          return isSameFile( file1, filename2 == null ? null : new File( filename2 ) );
30  
31      }
32  
33      //We need to canonicalise the files (if we can) before we compare them..
34      public static boolean isSameFile( File file1, File file2 )
35      {
36          
37          if ( file1 == file2 || ( file1 == null && file2 == null ) )
38          {
39              return true;
40          }
41  
42          if ( file1 == null || file2 == null )
43          {
44              return false;
45          }
46  
47          try
48          {
49              file1 = file1.getCanonicalFile();
50          }
51          catch ( IOException ioEx )
52          {
53              //Oh well, we'll compare the non-canonicalised file then.
54          }
55  
56          try
57          {
58              file2 = file2.getCanonicalFile();
59          }
60          catch ( IOException ioEx )
61          {
62              //Oh well, we'll compare the non-canonicalised file then.
63          }
64          return file1.equals( file2 );
65      }
66  
67      private WorkspaceUtils()
68      {
69          // no op only to prevents class creation
70      }
71  }