source: trunk/src/org/expeditee/network/InfUpdate.java@ 309

package org.expeditee.network;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.InetAddress;

import org.expeditee.gui.FrameIO;
import org.expeditee.gui.MessageBay;

public class InfUpdate extends DefaultServer {
        public final static int OFFSET = 4;

        public InfUpdate(int port) throws IOException {
                super("InfUpdate", port + OFFSET);
        }

        @Override
        protected void listenForMessages() throws IOException {
                byte[] buf = new byte[FRAMENAME_PACKET_LENGTH];

                // receive request
                DatagramPacket packet = new DatagramPacket(buf, buf.length);
                socket.receive(packet);

                String framesetName = new String(packet.getData(), 0, packet
                                .getLength());
                MessageBay.displayMessage("Recieved inf update request for " + framesetName);

                // figure out response
                int next = FrameIO.ReadINF(FrameIO.PUBLIC_PATH, framesetName, true);
                FrameIO.WriteINF(FrameIO.PUBLIC_PATH, framesetName, framesetName
                                + (next + 1));
                String dString = next + "";

                if (dString != null && dString.length() > 0) {
                        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);
                }
        }
}