glacierstatistics.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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- Redistributions in binary form must reproduce the above copyright
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- Neither  the name  of Rice  University (RICE) nor  the names  of its
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This software is provided by RICE and the contributors on an "as is"
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********************************************************************************/
package rice.p2p.glacier.v2;

import rice.environment.Environment;
import rice.environment.logging.Logger;
import rice.p2p.commonapi.IdRange;

/**
 * DESCRIBE THE CLASS
 *
 * @version $Id: pretty.settings 2305 2005-03-11 20:22:33Z jeffh $
 * @author jeffh
 */
public class GlacierStatistics {
  /**
   * DESCRIBE THE FIELD
   */
  public int messagesSentByTag[];
  /**
   * DESCRIBE THE FIELD
   */
  public int pendingRequests;
  /**
   * DESCRIBE THE FIELD
   */
  public int numNeighbors;
  /**
   * DESCRIBE THE FIELD
   */
  public int numFragments;
  /**
   * DESCRIBE THE FIELD
   */
  public int numContinuations;
  /**
   * DESCRIBE THE FIELD
   */
  public int numObjectsInTrash;
  /**
   * DESCRIBE THE FIELD
   */
  public int activeFetches;
  /**
   * DESCRIBE THE FIELD
   */
  public IdRange responsibleRange;
  /**
   * DESCRIBE THE FIELD
   */
  public long fragmentStorageSize;
  /**
   * DESCRIBE THE FIELD
   */
  public long trashStorageSize;
  /**
   * DESCRIBE THE FIELD
   */
  public long tbegin;
  /**
   * DESCRIBE THE FIELD
   */
  public long bucketMin;
  /**
   * DESCRIBE THE FIELD
   */
  public long bucketMax;
  /**
   * DESCRIBE THE FIELD
   */
  public long bucketConsumed;
  /**
   * DESCRIBE THE FIELD
   */
  public long bucketTokensPerSecond;
  /**
   * DESCRIBE THE FIELD
   */
  public long bucketMaxBurstSize;
  /**
   * DESCRIBE THE FIELD
   */
  public Environment environment;

  /**
   * Constructor for GlacierStatistics.
   *
   * @param numTags DESCRIBE THE PARAMETER
   * @param env DESCRIBE THE PARAMETER
   */
  public GlacierStatistics(int numTags, Environment env) {
    this.environment = env;
    this.messagesSentByTag = new int[numTags];
    this.pendingRequests = 0;
    this.numNeighbors = 0;
    this.numFragments = 0;
    this.numContinuations = 0;
    this.numObjectsInTrash = 0;
    this.fragmentStorageSize = 0;
    this.trashStorageSize = 0;
    this.activeFetches = 0;
    this.tbegin = env.getTimeSource().currentTimeMillis();
    this.bucketMin = 0;
    this.bucketMax = 0;
    this.bucketConsumed = 0;
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @param logger DESCRIBE THE PARAMETER
   */
  public void dump(Logger logger) {
    String s = "";
    s += "@L.ME free=" + Runtime.getRuntime().freeMemory() + " max=" + Runtime.getRuntime().maxMemory() + " total=" + Runtime.getRuntime().totalMemory() + "\n";
    s += "@L.GL interval=" + tbegin + "-" + environment.getTimeSource().currentTimeMillis() + " range=" + responsibleRange + "\n";
    s += "@L.GL   neighbors=" + numNeighbors + " fragments=" + numFragments + " trash=" + numObjectsInTrash + "\n";
    s += "@L.GL   continuations=" + numContinuations + " pending=" + pendingRequests + "\n";
    s += "@L.GL   fragSizeBytes=" + fragmentStorageSize + " trashSizeBytes=" + trashStorageSize + "\n";
    s += "@L.GL   activeFetches=" + activeFetches + " bucketMin=" + bucketMin + " bucketMax=" + bucketMax + "\n";
    s += "@L.GL   bucketConsumed=" + bucketConsumed + "\n";
    s += "@L.GL   byTag=";
    for (int i = 0; i < messagesSentByTag.length; i++) {
      s += messagesSentByTag[i] + " ";
    }
    s += "\n";
    if (logger.level <= Logger.INFO) {
      logger.log(s);
    }
  }
}