1 package org.codehaus.plexus.compiler.util;
2
3 /**
4 * The MIT License
5 *
6 * Copyright (c) 2005, The Codehaus
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy of
9 * this software and associated documentation files (the "Software"), to deal in
10 * the Software without restriction, including without limitation the rights to
11 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12 * of the Software, and to permit persons to whom the Software is furnished to do
13 * so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in all
16 * copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * SOFTWARE.
25 */
26 import java.io.BufferedInputStream;
27 import java.io.IOException;
28 import java.io.OutputStream;
29
30 /**
31 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
32 */
33 public class StreamPumper extends Thread {
34 private static final int BUFFER_SIZE = 512;
35
36 private final BufferedInputStream stream;
37
38 private boolean endOfStream = false;
39
40 private int SLEEP_TIME = 5;
41
42 private final OutputStream out;
43
44 public StreamPumper(BufferedInputStream is, OutputStream out) {
45 this.stream = is;
46 this.out = out;
47 }
48
49 public void pumpStream() throws IOException {
50 byte[] buf = new byte[BUFFER_SIZE];
51 if (!endOfStream) {
52 int bytesRead = stream.read(buf, 0, BUFFER_SIZE);
53
54 if (bytesRead > 0) {
55 out.write(buf, 0, bytesRead);
56 } else if (bytesRead == -1) {
57 endOfStream = true;
58 }
59 }
60 }
61
62 public void run() {
63 try {
64 while (!endOfStream) {
65 pumpStream();
66 sleep(SLEEP_TIME);
67 }
68 } catch (Exception e) {
69 // getLogger().warn("Jikes.run()", e);
70 }
71 }
72 }