pingmessagenew.java

pastry的java实现的2.0b版

/*************************************************************************

"FreePastry" Peer-to-Peer Application Development Substrate 

Copyright 2002, Rice University. All rights reserved.

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********************************************************************************/

package rice.pastry.testing;

import rice.pastry.*;
import rice.pastry.messaging.*;

import java.util.*;

/**
 * PingMessageNew A performance test suite for pastry.
 *
 * @version $Id: PingMessageNew.java 3274 2006-05-15 16:17:47Z jeffh $
 * @author Rongmei Zhang
 */

public class PingMessageNew extends Message {
  private Id target;

  private int nHops = 0;
  private double fDistance = 0;

  /**
   * Constructor for PingMessageNew.
   *
   * @param pingAddress DESCRIBE THE PARAMETER
   * @param src DESCRIBE THE PARAMETER
   * @param tgt DESCRIBE THE PARAMETER
   */
  public PingMessageNew(int pingAddress, NodeHandle src, Id tgt) {
    super(pingAddress);
    setSender(src);
    target = tgt;
  }

  /**
   * Gets the Hops attribute of the PingMessageNew object
   *
   * @return The Hops value
   */
  public int getHops() {
    return nHops;
  }

  /**
   * Gets the Distance attribute of the PingMessageNew object
   *
   * @return The Distance value
   */
  public double getDistance() {
    return fDistance;
  }

  /**
   * Gets the Source attribute of the PingMessageNew object
   *
   * @return The Source value
   */
  public Id getSource() {
    return getSender().getNodeId();
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @return DESCRIBE THE RETURN VALUE
   */
  public String toString() {
    String s = "";
    s += "ping from " + getSender().getNodeId() + " to " + target;
    return s;
  }

  /**
   * DESCRIBE THE METHOD
   */
  public void incrHops() {
    nHops++;
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @param dist DESCRIBE THE PARAMETER
   */
  public void incrDistance(double dist) {
    fDistance += dist;
  }
}