treemessageupstream.java

High performance DB query

/*
 * @(#)$Id: TreeMessageUpstream.java,v 1.5 2005/08/02 17:57:05 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 services.network.Payload;
import util.BitID;
import util.network.serialization.GenericByteBuffer;
import util.network.serialization.SerializationManager;
import util.network.serialization.SerializeBool;

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

    public static long serialVersionUID =
        SerializationManager.getSerialUID(
            "pier.helpers.trees.TreeMessageUpstream");
    protected int totalAdvertisedSlots;
    protected byte height;
    protected Payload userMessage;
    protected boolean deliverOnRedirect;
    protected TreeDetails treeDetails;

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

        this.totalAdvertisedSlots = inputBuffer.getInt();
        this.height = inputBuffer.get();
        this.userMessage = SerializationManager.deSerialize(inputBuffer);

        boolean[] flags = SerializeBool.deSerialize(inputBuffer, 2);

        this.deliverOnRedirect = flags[0];

        if (flags[1] == true) {
            this.treeDetails = new TreeDetails(inputBuffer);
        } else {
            this.treeDetails = null;
        }
    }

    /**
     * Method serialize
     *
     * @param outputBuffer
     * @return
     */
    public long serialize(GenericByteBuffer outputBuffer) {
        super.serialize(outputBuffer);
        outputBuffer.putInt(totalAdvertisedSlots);
        outputBuffer.put(height);
        SerializationManager.serialize(outputBuffer, userMessage);

        boolean detailFlag = (treeDetails != null)
                             ? true
                             : false;

        SerializeBool.serialize(outputBuffer, deliverOnRedirect, detailFlag);

        if (detailFlag) {
            treeDetails.serialize(outputBuffer);
        }

        return serialVersionUID;
    }

    /**
     * Constructor TreeMessage
     *
     *
     * @param sourceSocketAddress
     * @param sourceID
     * @param totalAdvertisedSlots
     * @param height
     * @param userMessage
     * @param deliverOnRedirect
     * @param treeDetails
     */
    public TreeMessageUpstream(InetSocketAddress sourceSocketAddress,
                               BitID sourceID, int totalAdvertisedSlots,
                               byte height, Payload userMessage,
                               boolean deliverOnRedirect,
                               TreeDetails treeDetails) {
        super(sourceSocketAddress, sourceID);

        this.totalAdvertisedSlots = totalAdvertisedSlots;
        this.height = height;
        this.userMessage = userMessage;
        this.deliverOnRedirect = deliverOnRedirect;
        this.treeDetails = treeDetails;
    }

    /**
     * Method getTotalAdvertisedSlots
     * @return
     */
    public int getTotalAdvertisedSlots() {
        return totalAdvertisedSlots;
    }

    /**
     * Method getHeight
     * @return
     */
    public byte getHeight() {
        return height;
    }

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

    /**
     * Method getDeliverOnRedirect
     * @return
     */
    public boolean getDeliverOnRedirect() {
        return deliverOnRedirect;
    }

    /**
     * Method getTreeDetails
     * @return
     */
    public TreeDetails getTreeDetails() {
        return treeDetails;
    }

    /**
     * Method getSize
     * @return
     */
    public int getSize() {
        int size = Payload.INT_SIZE + Payload.BYTE_SIZE + Payload.BOOLEAN_SIZE
                   + super.getSize();

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

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

        return size;
    }

    /**
     * Method toString
     * @return
     */
    public String toString() {
        return "<TreeUpstream: S:" + sourceID + "(" + sourceSocketAddress
               + "), T:" + totalAdvertisedSlots + ", H:" + height + ", R:"
               + deliverOnRedirect + ", D: " + treeDetails + ", M:"
               + userMessage + ">";
    }
}