TempFileInputStream


1   /******************************************************************************
2    * TempFileInputStream.java
3    * ****************************************************************************/
4   
5   /* J_LZ_COPYRIGHT_BEGIN *******************************************************
6   * Copyright 2001-2004 Laszlo Systems, Inc.  All Rights Reserved.              *
7   * Use is subject to license terms.                                            *
8   * J_LZ_COPYRIGHT_END *********************************************************/
9   
10  package org.openlaszlo.utils;
11  
12  import java.io.FileInputStream  ;
13  import java.io.FileNotFoundException  ;
14  import java.io.File  ;
15  import java.io.IOException  ;
16  
17  /**
18   * A FileInputStream that deletes the underlying file when the stream
19   * is closed.
20   *
21   * @author <a HREF="mailto:bloch@laszlosystems.com">Eric Bloch</a>
22   */
23  public class TempFileInputStream extends FileInputStream   {
24  
25      private final File   mFile;
26  
27      /**
28       * Construct a stream that will delete this file
29       * when the stream is closed
30       * @param f the input file
31       */
32      public TempFileInputStream(File   f) throws FileNotFoundException   {
33          super(f);
34          mFile = f;
35      }
36  
37      /**
38       * close the stream and delete the file
39       */
40      public void close() throws IOException   {
41  
42          try {
43              super.close();
44          } finally {
45              mFile.delete();
46          }
47      }
48  }
49

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