FileTools


1   /*
2    * Copyright (c) 2003-2004, Inversoft, All Rights Reserved
3    */
4   package com.inversoft.savant;
5   
6   
7   import java.io.BufferedInputStream  ;
8   import java.io.BufferedOutputStream  ;
9   import java.io.File  ;
10  import java.io.FileOutputStream  ;
11  import java.io.IOException  ;
12  import java.io.InputStream  ;
13  
14  
15  /**
16   * <p>
17   * This class stores common helper methods for dealing with
18   * files.
19   * </p>
20   *
21   * @author Brian Pontarelli
22   */
23  public class FileTools {
24  
25      /**
26       * Reads from the given input stream and writes the contents out to the given
27       * file.
28       *
29       * @param   is The InputStream to read from. This InputStream is wrapped in
30       *          a BufferedInputStream for performance.
31       * @param   output The file to output to.
32       * @throws  IOException If the output operation fails.
33       */
34      public static void output(InputStream   is, File   output)
35      throws IOException   {
36          BufferedInputStream   bis = null;
37          BufferedOutputStream   bos = null;
38          try {
39              bis = new BufferedInputStream  (is);
40              bos = new BufferedOutputStream  (new FileOutputStream  (output));
41              byte[] b = new byte[1024];
42              int len;
43              while ((len = bis.read(b)) != -1) {
44                  bos.write(b, 0, len);
45              }
46          } finally {
47              if (bis != null) {
48                  bis.close();
49              }
50  
51              if (bos != null) {
52                  bos.close();
53              }
54          }
55      }
56  }
57
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