/*
 * Copyright (c) 1995, 1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
import java.net.*;
import java.io.*;

class KKMultiServerThread extends Thread {
    ServerSocket serverSocket = null;

    KKMultiServerThread() {
	super("KKMultiServer");
        try {
            serverSocket = new ServerSocket(4444);
        } catch (IOException e) {
            System.out.println("Could not listen on port: " + 4444 + ", " + e);
            System.exit(1);
        }
    }

    public void run() {
        if (serverSocket == null)
            return;

        while (true) {
	    Socket clientSocket = null;
	    try {
	        clientSocket = serverSocket.accept();
	    } catch (IOException e) {
                System.out.println("Accept failed: " + 4444 + ", " + e);
                System.exit(1);
	    }

	    try {
	        DataInputStream is = new DataInputStream(
				 new BufferedInputStream(clientSocket.getInputStream()));
                PrintStream os = new PrintStream(
			         new BufferedOutputStream(clientSocket.getOutputStream(), 1024), false);
	        KKProtocol kkp = new KKProtocol();
	        String inputLine, outputLine;

	        outputLine = kkp.processInput(null);
	        os.println(outputLine);
	        os.flush();

	        while ((inputLine = is.readLine()) != null) {
	 	    outputLine = kkp.processInput(inputLine);
	 	    os.println(outputLine);
	            os.flush();
	 	    if (outputLine.equals("Bye"))
		        break;
	        }
	        os.close();
	        is.close();
	        clientSocket.close();

	    } catch (IOException e) {
                e.printStackTrace();
	    }

	}
    }
    protected void finalize() {
        if (serverSocket != null) {
	    try {
                serverSocket.close();
	    } catch (IOException e) {
                e.printStackTrace();
	    }
            serverSocket = null;
        }
    }  
}