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 * Utility class for tests. A simple "in-thread" server to accept connections
26 * and write bytes.
27 * @author kladko
28 */
29
30import java.net.Socket;
31import java.net.ServerSocket;
32import java.net.SocketAddress;
33import java.net.InetSocketAddress;
34import java.io.IOException;
35import java.io.Closeable;
36
37public class ByteServer implements Closeable {
38
39    private final ServerSocket ss;
40    private Socket s;
41
42    ByteServer() throws IOException {
43        this.ss = new ServerSocket(0);
44    }
45
46    SocketAddress address() {
47        return new InetSocketAddress(ss.getInetAddress(), ss.getLocalPort());
48    }
49
50    void acceptConnection() throws IOException {
51        if (s != null)
52            throw new IllegalStateException("already connected");
53        this.s = ss.accept();
54    }
55
56    void closeConnection() throws IOException {
57        Socket s = this.s;
58        if (s != null) {
59            this.s = null;
60            s.close();
61        }
62    }
63
64    void write(int count) throws IOException {
65        if (s == null)
66            throw new IllegalStateException("no connection");
67        s.getOutputStream().write(new byte[count]);
68    }
69
70    public void close() throws IOException {
71        if (s != null)
72            s.close();
73        ss.close();
74    }
75}
76