| /* |
| * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4313882 7183800 |
| * @summary Test DatagramChannel's send and receive methods |
| * @author Mike McCloskey |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.nio.charset.*; |
| |
| |
| public class Connect { |
| |
| static PrintStream log = System.err; |
| |
| public static void main(String[] args) throws Exception { |
| test(); |
| } |
| |
| static void test() throws Exception { |
| Reactor r = new Reactor(); |
| Actor a = new Actor(r.port()); |
| invoke(a, r); |
| } |
| |
| static void invoke(Sprintable reader, Sprintable writer) throws Exception { |
| |
| Thread writerThread = new Thread(writer); |
| writerThread.start(); |
| |
| Thread readerThread = new Thread(reader); |
| readerThread.start(); |
| |
| writerThread.join(); |
| readerThread.join(); |
| |
| reader.throwException(); |
| writer.throwException(); |
| } |
| |
| public interface Sprintable extends Runnable { |
| public void throwException() throws Exception; |
| } |
| |
| public static class Actor implements Sprintable { |
| final int port; |
| Exception e = null; |
| |
| Actor(int port) { |
| this.port = port; |
| } |
| |
| public void throwException() throws Exception { |
| if (e != null) |
| throw e; |
| } |
| |
| public void run() { |
| try { |
| DatagramChannel dc = DatagramChannel.open(); |
| |
| // Send a message |
| ByteBuffer bb = ByteBuffer.allocateDirect(256); |
| bb.put("hello".getBytes()); |
| bb.flip(); |
| InetAddress address = InetAddress.getLocalHost(); |
| if (address.isLoopbackAddress()) { |
| address = InetAddress.getLoopbackAddress(); |
| } |
| InetSocketAddress isa = new InetSocketAddress(address, port); |
| dc.connect(isa); |
| dc.write(bb); |
| |
| // Try to send to some other address |
| address = InetAddress.getLocalHost(); |
| InetSocketAddress bogus = new InetSocketAddress(address, 3333); |
| try { |
| dc.send(bb, bogus); |
| throw new RuntimeException("Allowed bogus send while connected"); |
| } catch (IllegalArgumentException iae) { |
| // Correct behavior |
| } |
| |
| // Read a reply |
| bb.flip(); |
| dc.read(bb); |
| bb.flip(); |
| CharBuffer cb = Charset.forName("US-ASCII"). |
| newDecoder().decode(bb); |
| log.println("From Reactor: "+isa+ " said " +cb); |
| |
| // Clean up |
| dc.disconnect(); |
| dc.close(); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| |
| public static class Reactor implements Sprintable { |
| final DatagramChannel dc; |
| Exception e = null; |
| |
| Reactor() throws IOException { |
| dc = DatagramChannel.open().bind(new InetSocketAddress(0)); |
| } |
| |
| int port() { |
| return dc.socket().getLocalPort(); |
| } |
| |
| public void throwException() throws Exception { |
| if (e != null) |
| throw e; |
| } |
| |
| public void run() { |
| try { |
| // Listen for a message |
| ByteBuffer bb = ByteBuffer.allocateDirect(100); |
| SocketAddress sa = dc.receive(bb); |
| bb.flip(); |
| CharBuffer cb = Charset.forName("US-ASCII"). |
| newDecoder().decode(bb); |
| log.println("From Actor: "+sa+ " said " +cb); |
| |
| // Reply to sender |
| dc.connect(sa); |
| bb.flip(); |
| dc.write(bb); |
| |
| // Clean up |
| dc.disconnect(); |
| dc.close(); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| } |