DirectoryUtils xref

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DirectoryUtils xref

1   /*
2    * Copyright 2000-2001,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not 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.
15   */
16  
17  package org.apache.jetspeed.util;
18  
19  import java.io.File;
20  
21  // Jetspeed classes
22  import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
23  import org.apache.jetspeed.services.logging.JetspeedLogger;
24  
25  
26  /*
27   * File System Directory Utilities. Some utilities that java.io doesn't give us.
28   *
29   *    rmdir() - removes a directory and all subdirectories and files underneath.
30   *
31   *  @author David S. Taylor <a href="mailto:taylor@apache.org">David Sean Taylor</a>
32   */
33  public class DirectoryUtils
34  {
35      /***
36       * Static initialization of the logger for this class
37       */    
38      private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(DirectoryUtils.class.getName());
39      
40      public static void main(String[] args)
41      {
42          DirectoryUtils.rmdir(args[0]);
43      }
44  
45      /*
46       *  Removes a directory and all subdirectories and files beneath it.
47       *
48       * @param directory The name of the root directory to be deleted.
49       * @return boolean If all went successful, returns true, otherwise false.
50       * 
51       */
52      public static final boolean rmdir(String directory)
53      {    
54          try
55          {
56              File dir = new File(directory);
57              if (!dir.isDirectory())            
58              {
59                  dir.delete();
60                  return true;
61              }
62  
63              deleteTraversal(directory);
64  
65              dir.delete();
66              return true;
67  
68          }
69          catch (Exception e)
70          {
71              logger.error("Error in rmdir utility:" , e);
72              return false;
73          }
74      }
75  
76      /*
77       *  Recursive deletion engine, traverses through all subdirectories, 
78       *  attempting to delete every file and directory it comes across.
79       *  NOTE: this version doesn't do any security checks, nor does it 
80       *  check for file modes and attempt to change them.
81       *
82       * @param path The directory path to be traversed.
83       * 
84       */            
85      private static void deleteTraversal(String path)
86      {
87          File file = new File(path);
88          if (file.isFile()) 
89          {
90              try 
91              {
92                  file.delete();
93              }
94              catch (Exception e)
95              {
96                  logger.error("Failed to Delete file: " + path + " : " , e);
97                  file.deleteOnExit(); // try to get it later...
98              }
99          } 
100         else if (file.isDirectory()) 
101         {
102             if (!path.endsWith(File.separator))
103                 path += File.separator;
104 
105             String list[] = file.list();
106 
107             // Process all files recursivly
108             for(int ix = 0; list != null && ix < list.length; ix++)
109                 deleteTraversal(path + list[ix]);
110 
111             // now try to delete the directory
112             try 
113             {
114                 file.delete();
115             }
116             catch (Exception e)
117             {
118                 logger.error("Failed to Delete directory: " + path + " : " , e);
119                 file.deleteOnExit(); // try to get it later...
120             }
121             
122         }
123     }            
124 }
125 
126 
127