1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id: AsynchronousAcceptor.java,v 1.4 2005/08/26 18:09:36 mat007 Exp $
29 */
30
31 package jtge.engine.io;
32
33 /***
34 * Wraps an acceptor to provide an asynchronous functionning.
35 * <p>
36 * This acceptor provides a non-blocking open and a blocking close.
37 *
38 * @author Mathieu Champlon
39 * @version $Revision: 1.4 $ $Date: 2005/08/26 18:09:36 $
40 */
41 public class AsynchronousAcceptor extends Thread implements IAcceptor
42 {
43 private final IAcceptor acceptor;
44
45 /***
46 * Create an asynchronous acceptor.
47 *
48 * @param acceptor the acceptor to wrap
49 */
50 public AsynchronousAcceptor( final IAcceptor acceptor )
51 {
52 if( acceptor == null )
53 throw new IllegalArgumentException( "argument 'acceptor' is null" );
54 this.acceptor = acceptor;
55 }
56
57 /***
58 * {@inheritDoc}
59 */
60 public final void run()
61 {
62 acceptor.open();
63 }
64
65 /***
66 * {@inheritDoc}
67 */
68 public final void open()
69 {
70 start();
71 }
72
73 /***
74 * {@inheritDoc}
75 */
76 public final void close()
77 {
78 acceptor.close();
79 try
80 {
81 join();
82 }
83 catch( InterruptedException e )
84 {
85 return;
86 }
87 }
88 }