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1   /***************************************************************************************
2    * Copyright (c) Jonas Bonér, Alexandre Vasseur. All rights reserved.                 *
3    * http://aspectwerkz.codehaus.org                                                    *
4    * ---------------------------------------------------------------------------------- *
5    * The software in this package is published under the terms of the LGPL license      *
6    * a copy of which has been included with this distribution in the license.txt file.  *
7    **************************************************************************************/
8   package org.codehaus.aspectwerkz.hook;
9   
10  import java.io.InputStream;
11  import java.io.OutputStream;
12  
13  /***
14   * Redirects stream using an internal buffer of size 2048 Used to redirect std(in/out/err) streams of the target VM
15   * <p/>Inspired from Ant StreamPumper class, which seems better than the JPDA Sun demo
16   * 
17   * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur </a>
18   */
19  class StreamRedirectThread extends Thread {
20      private static final int BUFFER_SIZE = 2048;
21  
22      private static final int SLEEP = 5;
23  
24      private InputStream is;
25  
26      private OutputStream os;
27  
28      public StreamRedirectThread(String name, InputStream is, OutputStream os) {
29          super(name);
30          setPriority(Thread.MAX_PRIORITY - 1);
31          this.is = is;
32          this.os = os;
33      }
34  
35      public void run() {
36          byte[] buf = new byte[BUFFER_SIZE];
37          int i;
38          try {
39              while ((i = is.read(buf)) > 0) {
40                  os.write(buf, 0, i);
41                  try {
42                      Thread.sleep(SLEEP);
43                  } catch (InterruptedException e) {
44                      ;
45                  }
46              }
47          } catch (Exception e) {
48              ;
49          } finally {
50              ; //notify();
51          }
52      }
53  
54      /*
55       * public StreamRedirectThread(String name, InputStream in, OutputStream out) { super(name); this.in = new
56       * InputStreamReader(in); this.out = new OutputStreamWriter(out); setPriority(Thread.MAX_PRIORITY-1); } public void
57       * run() { try { char[] cbuf = new char[BUFFER_SIZE]; int count; System.out.println("read" + this.getName()); while
58       * ((count = in.read(cbuf, 0, BUFFER_SIZE)) >= 0) { System.out.println("write" + this.getName()); out.write(cbuf, 0,
59       * count); out.flush(); } out.flush(); } catch (IOException e) { System.err.println("Child I/O Transfer failed - " +
60       * e); } finally { try { out.close(); in.close(); } catch(IOException e) { ; } } }
61       */
62  }