1 /*
2 * $Source$
3 * $Revision$
4 *
5 * Copyright (C) 2000 Tim Joyce
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * Tim Joyce <timj At paneris.org>
42 * http://paneris.org/
43 * 68 Sandbanks Rd, Poole, Dorset. BH14 8BY. UK
44 */
45
46 package org.melati.util;
47
48
49 /**
50 * Flusher replaces need for <code>Thread.stop</code>.
51 */
52 public final class Flusher extends Thread {
53 private MelatiWriter out = null;
54 private boolean stopTask = false;
55
56 private int getPauseLength() {
57 return 800;
58 }
59
60 /**
61 * Constructor.
62 * @param aOut MelatiWriter to flush
63 */
64 public Flusher(MelatiWriter aOut) {
65 out = aOut;
66 }
67
68 /**
69 * @return whether to stop the task
70 */
71 public synchronized boolean getStopTask() {
72 return stopTask;
73 }
74
75 /**
76 * @param aStopTask set whether to stop the task
77 */
78 public synchronized void setStopTask(boolean aStopTask) {
79 stopTask = aStopTask;
80 }
81
82 /**
83 * {@inheritDoc}
84 * @see java.lang.Thread#run()
85 */
86 public void run() {
87 try {
88 while (!getStopTask()) {
89 Thread.sleep(getPauseLength());
90 out.flush();
91 }
92 }
93 catch (Exception e) {
94 throw new RuntimeException(e);
95 }
96 }
97 }