J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @summary Test DatagramChannel's send and receive methods |
| 26 | * @author Mike McCloskey |
| 27 | */ |
| 28 | |
| 29 | import java.io.*; |
| 30 | import java.net.*; |
| 31 | import java.nio.*; |
| 32 | import java.nio.channels.*; |
| 33 | import java.nio.charset.*; |
| 34 | |
| 35 | |
| 36 | public class Connect { |
| 37 | |
| 38 | static PrintStream log = System.err; |
| 39 | |
| 40 | public static void main(String[] args) throws Exception { |
| 41 | test(); |
| 42 | } |
| 43 | |
| 44 | static void test() throws Exception { |
| 45 | invoke(new Actor(), new Reactor()); |
| 46 | } |
| 47 | |
| 48 | static void invoke(Sprintable reader, Sprintable writer) throws Exception { |
| 49 | |
| 50 | Thread writerThread = new Thread(writer); |
| 51 | writerThread.start(); |
| 52 | while (!writer.ready()) |
| 53 | Thread.sleep(50); |
| 54 | |
| 55 | Thread readerThread = new Thread(reader); |
| 56 | readerThread.start(); |
| 57 | |
| 58 | writerThread.join(); |
| 59 | readerThread.join(); |
| 60 | |
| 61 | reader.throwException(); |
| 62 | writer.throwException(); |
| 63 | } |
| 64 | |
| 65 | public interface Sprintable extends Runnable { |
| 66 | public void throwException() throws Exception; |
| 67 | public boolean ready(); |
| 68 | } |
| 69 | |
| 70 | public static class Actor implements Sprintable { |
| 71 | Exception e = null; |
| 72 | |
| 73 | public void throwException() throws Exception { |
| 74 | if (e != null) |
| 75 | throw e; |
| 76 | } |
| 77 | |
| 78 | private volatile boolean ready = false; |
| 79 | |
| 80 | public boolean ready() { |
| 81 | return ready; |
| 82 | } |
| 83 | |
| 84 | public void run() { |
| 85 | try { |
| 86 | DatagramChannel dc = DatagramChannel.open(); |
| 87 | ready = true; |
| 88 | |
| 89 | // Send a message |
| 90 | ByteBuffer bb = ByteBuffer.allocateDirect(256); |
| 91 | bb.put("hello".getBytes()); |
| 92 | bb.flip(); |
| 93 | InetAddress address = InetAddress.getLocalHost(); |
| 94 | InetSocketAddress isa = new InetSocketAddress(address, 8888); |
| 95 | dc.connect(isa); |
| 96 | dc.write(bb); |
| 97 | |
| 98 | // Try to send to some other address |
| 99 | address = InetAddress.getLocalHost(); |
| 100 | InetSocketAddress bogus = new InetSocketAddress(address, 3333); |
| 101 | try { |
| 102 | dc.send(bb, bogus); |
| 103 | throw new RuntimeException("Allowed bogus send while connected"); |
| 104 | } catch (IllegalArgumentException iae) { |
| 105 | // Correct behavior |
| 106 | } |
| 107 | |
| 108 | // Read a reply |
| 109 | bb.flip(); |
| 110 | dc.read(bb); |
| 111 | bb.flip(); |
| 112 | CharBuffer cb = Charset.forName("US-ASCII"). |
| 113 | newDecoder().decode(bb); |
| 114 | log.println("From Reactor: "+isa+ " said " +cb); |
| 115 | |
| 116 | // Clean up |
| 117 | dc.disconnect(); |
| 118 | dc.close(); |
| 119 | } catch (Exception ex) { |
| 120 | e = ex; |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | public static class Reactor implements Sprintable { |
| 126 | Exception e = null; |
| 127 | |
| 128 | public void throwException() throws Exception { |
| 129 | if (e != null) |
| 130 | throw e; |
| 131 | } |
| 132 | |
| 133 | private volatile boolean ready = false; |
| 134 | |
| 135 | public boolean ready() { |
| 136 | return ready; |
| 137 | } |
| 138 | |
| 139 | public void run() { |
| 140 | try { |
| 141 | // Listen for a message |
| 142 | DatagramChannel dc = DatagramChannel.open(); |
| 143 | dc.socket().bind(new InetSocketAddress(8888)); |
| 144 | ByteBuffer bb = ByteBuffer.allocateDirect(100); |
| 145 | ready = true; |
| 146 | SocketAddress sa = dc.receive(bb); |
| 147 | bb.flip(); |
| 148 | CharBuffer cb = Charset.forName("US-ASCII"). |
| 149 | newDecoder().decode(bb); |
| 150 | log.println("From Actor: "+sa+ " said " +cb); |
| 151 | |
| 152 | // Reply to sender |
| 153 | dc.connect(sa); |
| 154 | bb.flip(); |
| 155 | dc.write(bb); |
| 156 | |
| 157 | // Clean up |
| 158 | dc.disconnect(); |
| 159 | dc.close(); |
| 160 | } catch (Exception ex) { |
| 161 | e = ex; |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | } |