fd14375ae2
Reviewed-by: chegar
76 lines
2.8 KiB
Java
76 lines
2.8 KiB
Java
/*
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @run main UdpSocket
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* @summary Basic test for a Socket to a UDP socket
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*/
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.Socket;
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import java.net.SocketAddress;
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import java.nio.ByteBuffer;
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import java.nio.channels.DatagramChannel;
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import java.util.Arrays;
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public class UdpSocket {
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static final String MESSAGE = "hello";
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public static void main(String[] args) throws IOException {
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try (DatagramChannel dc = DatagramChannel.open()) {
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var loopback = InetAddress.getLoopbackAddress();
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dc.bind(new InetSocketAddress(loopback, 0));
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int port = ((InetSocketAddress) dc.getLocalAddress()).getPort();
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try (Socket s = new Socket(loopback, port, false)) {
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// send datagram with socket output stream
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byte[] array1 = MESSAGE.getBytes("UTF-8");
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s.getOutputStream().write(array1);
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// receive the datagram
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var buf = ByteBuffer.allocate(100);
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SocketAddress remote = dc.receive(buf);
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buf.flip();
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if (buf.remaining() != MESSAGE.length())
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throw new RuntimeException("Unexpected size");
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// echo the datagram
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dc.send(buf, remote);
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// receive datagram with the socket input stream
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byte[] array2 = new byte[100];
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int n = s.getInputStream().read(array2);
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if (n != MESSAGE.length())
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throw new RuntimeException("Unexpected size");
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if (!Arrays.equals(array1, 0, n, array2, 0, n))
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throw new RuntimeException("Unexpected contents");
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}
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}
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}
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}
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