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1   /*
2    * Copyright (c) 2002-2021, City of Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.plugins.ctv.handler;
35  
36  import java.io.File;
37  import java.util.ArrayList;
38  import java.util.List;
39  
40  import org.apache.commons.io.FileCleaningTracker;
41  import org.apache.commons.io.FileDeleteStrategy;
42  
43  /**
44   * Cleaning tracker to clean files after each upload with special method invocation. Not thread safe and must be used with 1 factory = 1 thread policy.
45   */
46  public class DeleteFilesOnEndUploadCleaningTracker extends FileCleaningTracker
47  {
48  
49      private List<String> filesToDelete = new ArrayList( );
50  
51      public void deleteTemporaryFiles( )
52      {
53          for ( String file : filesToDelete )
54          {
55              File file2 = new File( file );
56              file2.deleteOnExit( );
57          }
58          filesToDelete.clear( );
59          System.gc( );
60      }
61  
62      @Override
63      public synchronized void exitWhenFinished( )
64      {
65          deleteTemporaryFiles( );
66      }
67  
68      @Override
69      public int getTrackCount( )
70      {
71          return filesToDelete.size( );
72      }
73  
74      @Override
75      public void track( File file, Object marker )
76      {
77          filesToDelete.add( file.getAbsolutePath( ) );
78      }
79  
80      @Override
81      public void track( File file, Object marker, FileDeleteStrategy deleteStrategy )
82      {
83          filesToDelete.add( file.getAbsolutePath( ) );
84      }
85  
86      @Override
87      public void track( String path, Object marker )
88      {
89          filesToDelete.add( path );
90      }
91  
92      @Override
93      public void track( String path, Object marker, FileDeleteStrategy deleteStrategy )
94      {
95          filesToDelete.add( path );
96      }
97  }