treemessagedownstream.java

High performance DB query

/*
 * @(#)$Id: TreeMessageDownstream.java,v 1.3 2005/07/30 20:14:55 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 pier.helpers.trees;

import java.net.InetSocketAddress;
import java.util.ArrayList;
import services.network.Payload;
import util.BitID;
import util.network.serialization.GenericByteBuffer;
import util.network.serialization.SerializationManager;
import util.network.serialization.SerializeList;

/**
 * Class Expression
 */
public class TreeMessageDownstream extends TreeMessage {

    public static long serialVersionUID =
        SerializationManager.getSerialUID(
            "pier.helpers.trees.TreeMessageDownstream");
    protected Payload userMessage;
    protected ArrayList pathToRoot;

    /**
     * Constructor TreeMessage
     *
     * @param inputBuffer
     */
    public TreeMessageDownstream(GenericByteBuffer inputBuffer) {
        super(inputBuffer);

        this.userMessage = SerializationManager.deSerialize(inputBuffer);
        this.pathToRoot =
            SerializeList.deSerializeHomogenousArrayList(inputBuffer);
    }

    /**
     * Method serialize
     *
     * @param outputBuffer
     * @return
     */
    public long serialize(GenericByteBuffer outputBuffer) {
        super.serialize(outputBuffer);
        SerializationManager.serialize(outputBuffer, userMessage);
        SerializeList.serializeHomogenous(outputBuffer, pathToRoot);

        return serialVersionUID;
    }

    /**
     * Constructor TreeMessage
     *
     *
     * @param sourceSocketAddress
     * @param sourceID
     * @param userMessage
     * @param pathToRoot
     */
    public TreeMessageDownstream(InetSocketAddress sourceSocketAddress,
                                 BitID sourceID, Payload userMessage,
                                 ArrayList pathToRoot) {
        super(sourceSocketAddress, sourceID);

        this.userMessage = userMessage;
        this.pathToRoot = pathToRoot;
    }

    /**
     * Method getUserMessage
     * @return
     */
    public Payload getUserMessage() {
        return userMessage;
    }

    /**
     * Method getPathToRoot
     * @return
     */
    public ArrayList getPathToRoot() {
        return pathToRoot;
    }

    /**
     * Method getSize
     * @return
     */
    public int getSize() {
        int size = super.getSize();

        if (userMessage != null) {
            size += userMessage.getSize();
        }

        if (pathToRoot != null) {
            size += pathToRoot.size() * Payload.INET_SOCKET_SIZE;
        }

        return size;
    }

    /**
     * Method toString
     * @return
     */
    public String toString() {
        return "<TreeDownstream: S:" + sourceID + "(" + sourceSocketAddress
               + "), P:" + pathToRoot + ", M:" + userMessage + ">";
    }
}