org.pouzinsociety.socket.udp.SocketServer.java Source code

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Here is the source code for org.pouzinsociety.socket.udp.SocketServer.java

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/*
 * 2008 - 2010 (c) Waterford Institute of Technology
 *         TSSG, EU ICT 4WARD
 *
 * 2010 (c) Pouzin Society
 *   - Forked from EU ICT 4WARD Open Source Distribution.
 *   - Organisation Strings updated to reflect fork.
 *
 *
 * Author        : pphelan(at)tssg.org
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public 
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; If not, write to the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package org.pouzinsociety.socket.udp;

import java.net.SocketException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jnode.net.TransportLayer;
import org.pouzinsociety.config.stack.StackConfiguration;
import jnode.net.DatagramPacket;
import jnode.net.DatagramSocket;
import jnode.net.DatagramSocketImplFactory;
import jnode.net.InetAddress;
import jnode.net.PlainDatagramSocketImpl;
import jnode.net.PlainDatagramSocketImplFactory;

public class SocketServer implements Runnable {
    private static final Log log = LogFactory.getLog(SocketServer.class);
    private TransportLayer udpTransport;
    @SuppressWarnings("unused")
    private StackConfiguration stackConfiguration;
    private String response = "BEEF";

    public SocketServer(TransportLayer udpTransport, StackConfiguration stackConfiguration) throws SocketException {
        this.udpTransport = udpTransport;
        this.stackConfiguration = stackConfiguration;
        if (stackConfiguration.Complete())
            new Thread(this).start();
        else
            throw new SocketException("StackConfiguration not complete");
    }

    public void run() {
        log.info("SocketServer : Started ");
        try {
            DatagramSocketImplFactory sFactory = udpTransport.getDatagramSocketImplFactory();
            DatagramSocket.setDatagramSocketImplFactory(sFactory);
            PlainDatagramSocketImpl.setUDPFactory((PlainDatagramSocketImplFactory) sFactory);

            DatagramSocket serverSocket = new DatagramSocket(3333);
            log.info("SocketServer: Opened Server");

            byte buf[] = new byte[256];
            DatagramPacket packet;
            log.info("SocketServer: Entering recv loop with Client");
            int packetsRecv = 0;
            do {
                packet = new DatagramPacket(buf, buf.length);
                serverSocket.receive(packet);
                packetsRecv++;
                String recv = new String(packet.getData());
                log.info("SocketServer: Recv(" + packetsRecv + ") from Client : [ " + recv + "]");

                InetAddress address = packet.getAddress();
                int port = packet.getPort();

                buf = response.getBytes();
                packet = new DatagramPacket(buf, buf.length, address, port);
                serverSocket.send(packet);

                log.info("SocketServer: Send(" + response + ") to Client");

            } while (packetsRecv < 5);
            serverSocket.close();

        } catch (Exception e) {
            log.error(e.getMessage());
        }
        log.info("SocketServer : Finished ");
    }
}