source: trunk/src/org/expeditee/network/InfServer.java@ 1510

/**
 *    InfServer.java
 *    Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program 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 for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

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 InfServer extends DefaultServer {
        public final static int OFFSET = 3;

        public InfServer(int port) throws IOException {
                super("InfServer", 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 request for " + framesetName);

                // figure out response
                int next = FrameIO.ReadINF(FrameIO.PUBLIC_PATH, framesetName, false);
                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);
                }
        }
}