| /* |
| * Copyright (c) 1999, 2016, 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 4132931 |
| * @summary DatagramSocket should use a factory for its impl |
| * |
| * @compile/module=java.base java/net/MyDatagramSocketImplFactory.java |
| * @run main ADatagramSocket |
| */ |
| import java.io.*; |
| import java.net.*; |
| import java.util.*; |
| |
| public class ADatagramSocket { |
| public static void main(String[] args) throws IOException { |
| // testing out setDatagramSocketImplFactory |
| System.err.println("setting DatagramSocketImplFactory..."); |
| try { |
| DatagramSocket.setDatagramSocketImplFactory(new java.net.MyDatagramSocketImplFactory()); |
| } catch (Exception ex) { |
| throw new RuntimeException("Setting DatagramSocketImplFactory failed!"); |
| } |
| |
| QuoteServerThread server = new QuoteServerThread(); |
| int port = server.getPort(); |
| System.out.println("Server port is " + port); |
| server.start(); |
| |
| // get a datagram socket |
| DatagramSocket socket = new DatagramSocket(); |
| |
| // send request |
| byte[] buf = new byte[256]; |
| InetAddress address = InetAddress.getLocalHost(); |
| DatagramPacket packet = new DatagramPacket(buf, buf.length, address, port); |
| socket.send(packet); |
| |
| // get response |
| packet = new DatagramPacket(buf, buf.length); |
| socket.receive(packet); |
| |
| // display response |
| String received = new String(packet.getData(), 0); |
| System.err.println("Success!! Server current time is: " + received); |
| |
| socket.close(); |
| } |
| } |
| |
| class QuoteServerThread extends Thread { |
| |
| protected DatagramSocket socket = null; |
| private final int port; |
| |
| public QuoteServerThread() throws IOException { |
| this("QuoteServerThread"); |
| } |
| |
| public QuoteServerThread(String name) throws IOException { |
| super(name); |
| socket = new DatagramSocket(0); |
| port = socket.getLocalPort(); |
| } |
| public int getPort(){ |
| return port; |
| } |
| |
| public void run() { |
| try { |
| byte[] buf = new byte[256]; |
| |
| // receive request |
| DatagramPacket packet = new DatagramPacket(buf, buf.length); |
| socket.receive(packet); |
| |
| // figure out response |
| String dString = null; |
| dString = new Date().toString(); |
| buf = dString.getBytes(); |
| |
| // send the response to the client at "address" and "port" |
| InetAddress address = packet.getAddress(); |
| int port = packet.getPort(); |
| packet = new DatagramPacket(buf, buf.length, address, port); |
| socket.send(packet); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| socket.close(); |
| } |
| } |
| |