ByteServer.java revision 3261:a06412e13bf7 
1/*
2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/**
25 *
26 * Utility class for tests. A simple server, which waits for a connection,
27 * writes out n bytes and waits.
28 * @author kladko
29 */
30
31import java.net.Socket;
32import java.net.ServerSocket;
33
34public class ByteServer {
35
36    public static final String LOCALHOST = "localhost";
37    private int bytecount;
38    private Socket  socket;
39    private ServerSocket  serversocket;
40    private Thread serverthread;
41    volatile Exception savedException;
42
43    public ByteServer(int bytecount) throws Exception{
44        this.bytecount = bytecount;
45        serversocket = new ServerSocket(0);
46    }
47
48    public int port() {
49        return serversocket.getLocalPort();
50    }
51
52    public void start() {
53        serverthread = new Thread() {
54            public void run() {
55                try {
56                    socket = serversocket.accept();
57                    socket.getOutputStream().write(new byte[bytecount]);
58                    socket.getOutputStream().flush();
59                } catch (Exception e) {
60                    System.err.println("Exception in ByteServer: " + e);
61                    System.exit(1);
62                }
63            }
64        };
65        serverthread.start();
66    }
67
68    public void exit() throws Exception {
69        serverthread.join();
70        socket.close();
71        serversocket.close();
72    }
73}
74