| /* |
| * Copyright (c) 2001, 2010, 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 |
| * @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 SRTest { |
| |
| static PrintStream log = System.err; |
| |
| public static void main(String[] args) throws Exception { |
| test(); |
| } |
| |
| static void test() throws Exception { |
| ClassicReader classicReader; |
| NioReader nioReader; |
| |
| classicReader = new ClassicReader(); |
| invoke(classicReader, new ClassicWriter(classicReader.port())); |
| log.println("Classic RW: OK"); |
| |
| classicReader = new ClassicReader(); |
| invoke(classicReader, new NioWriter(classicReader.port())); |
| log.println("Classic R, Nio W: OK"); |
| |
| nioReader = new NioReader(); |
| invoke(nioReader, new ClassicWriter(nioReader.port())); |
| log.println("Classic W, Nio R: OK"); |
| |
| nioReader = new NioReader(); |
| invoke(nioReader, new NioWriter(nioReader.port())); |
| log.println("Nio RW: OK"); |
| } |
| |
| static void invoke(Sprintable reader, Sprintable writer) throws Exception { |
| Thread readerThread = new Thread(reader); |
| readerThread.start(); |
| Thread.sleep(50); |
| |
| Thread writerThread = new Thread(writer); |
| writerThread.start(); |
| |
| writerThread.join(); |
| readerThread.join(); |
| |
| reader.throwException(); |
| writer.throwException(); |
| } |
| |
| public interface Sprintable extends Runnable { |
| public void throwException() throws Exception; |
| } |
| |
| public static class ClassicWriter implements Sprintable { |
| final int port; |
| Exception e = null; |
| |
| ClassicWriter(int port) { |
| this.port = port; |
| } |
| |
| public void throwException() throws Exception { |
| if (e != null) |
| throw e; |
| } |
| |
| public void run() { |
| try { |
| DatagramSocket ds = new DatagramSocket(); |
| String dataString = "hello"; |
| byte[] data = dataString.getBytes(); |
| InetAddress address = InetAddress.getLocalHost(); |
| DatagramPacket dp = new DatagramPacket(data, data.length, |
| address, port); |
| ds.send(dp); |
| Thread.sleep(50); |
| ds.send(dp); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| |
| public static class NioWriter implements Sprintable { |
| final int port; |
| Exception e = null; |
| |
| NioWriter(int port) { |
| this.port = port; |
| } |
| |
| public void throwException() throws Exception { |
| if (e != null) |
| throw e; |
| } |
| |
| public void run() { |
| try { |
| DatagramChannel dc = DatagramChannel.open(); |
| ByteBuffer bb = ByteBuffer.allocateDirect(256); |
| bb.put("hello".getBytes()); |
| bb.flip(); |
| InetAddress address = InetAddress.getLocalHost(); |
| InetSocketAddress isa = new InetSocketAddress(address, port); |
| dc.send(bb, isa); |
| Thread.sleep(50); |
| dc.send(bb, isa); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| |
| public static class ClassicReader implements Sprintable { |
| final DatagramSocket ds; |
| Exception e = null; |
| |
| ClassicReader() throws IOException { |
| this.ds = new DatagramSocket(); |
| } |
| |
| int port() { |
| return ds.getLocalPort(); |
| } |
| |
| public void throwException() throws Exception { |
| if (e != null) |
| throw e; |
| } |
| |
| public void run() { |
| try { |
| byte[] buf = new byte[256]; |
| DatagramPacket dp = new DatagramPacket(buf, buf.length); |
| ds.receive(dp); |
| String received = new String(dp.getData()); |
| log.println(received); |
| ds.close(); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| |
| public static class NioReader implements Sprintable { |
| final DatagramChannel dc; |
| Exception e = null; |
| |
| NioReader() throws IOException { |
| this.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 { |
| ByteBuffer bb = ByteBuffer.allocateDirect(100); |
| SocketAddress sa = dc.receive(bb); |
| bb.flip(); |
| CharBuffer cb = Charset.forName("US-ASCII"). |
| newDecoder().decode(bb); |
| log.println("From: "+sa+ " said " +cb); |
| dc.close(); |
| } catch (Exception ex) { |
| e = ex; |
| } |
| } |
| } |
| |
| } |