simtcpmessage.java

High performance DB query

/*
 * @(#)$Id: SimTCPMessage.java,v 1.7 2004/07/02 23:59:22 huebsch Exp $
 *
 * Copyright (c) 2001-2004 Regents of the University of California.
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached BERKELEY-LICENSE
 * file. If you do not find these files, copies can be found by writing to:
 * Computer Science Division, Database Group, Universite of California,
 * 617 Soda Hall #1776, Berkeley, CA 94720-1776. Attention: Berkeley License
 *
 * Copyright (c) 2003-2004 Intel Corporation. All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE file.
 * If you do not find these files, copies can be found by writing to:
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300,
 * Berkeley, CA, 94704.  Attention:  Intel License Inquiry.
 */


package simulator.services.network.tcp;

import services.network.Payload;
import util.network.serialization.GenericByteBuffer;
import util.network.serialization.SerializationManager;

/**
 * Class SimTCPMessage
 *
 */
public class SimTCPMessage implements Payload {

    public static long serialVersionUID =
        SerializationManager.getSerialUID(
            "simulator.services.network.tcp.SimTCPMessage");
    protected static final int TCP_MTU = 1480;
    protected static final int TCP_OVERHEAD = 20;
    private Integer sourcePortNumber;
    private Integer destinationPortNumber;

    /**
     * DeSerialize the object from the provided GenericByteBuffer.
     *
     * @param inputBuffer
     */
    public SimTCPMessage(GenericByteBuffer inputBuffer) {
        this.sourcePortNumber = new Integer(inputBuffer.getInt());
        this.destinationPortNumber = new Integer(inputBuffer.getInt());
    }

    /**
     * Serialize the object into the provided GenericByteBuffer.
     *
     * @param outputBuffer
     * @return
     */
    public long serialize(GenericByteBuffer outputBuffer) {
        outputBuffer.putInt(sourcePortNumber.intValue());
        outputBuffer.putInt(destinationPortNumber.intValue());

        return serialVersionUID;
    }

    /**
     * Constructor SimTCPMessage
     */
    protected SimTCPMessage() {}

    /**
     * Method init
     *
     * @param sourcePortNumber
     * @param destinationPortNumber
     */
    protected void init(Integer sourcePortNumber,
                        Integer destinationPortNumber) {
        this.sourcePortNumber = sourcePortNumber;
        this.destinationPortNumber = destinationPortNumber;
    }

    /**
     * Method getSourcePortNumber
     * @return
     */
    public Integer getSourcePortNumber() {
        return sourcePortNumber;
    }

    /**
     * Method getDestinationPortNumber
     * @return
     */
    public Integer getDestinationPortNumber() {
        return destinationPortNumber;
    }

    /**
     * Method getSize
     * @return
     */
    public int getSize() {
        return TCP_OVERHEAD;
    }

    /**
     * Method toString
     * @return
     */
    public String toString() {
        return "<TCP: SP:" + sourcePortNumber + ", DP:" + destinationPortNumber
               + ">";
    }
}