org.jdiameter.common.impl.controller.AbstractPeer Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jdiameter-impl Show documentation
The newest version!
/*
 * TeleStax, Open Source Cloud Communications
 * Copyright 2011-2014, TeleStax Inc. and individual contributors
 * by the @authors tag.
 *
 * This program is free software: you can redistribute it and/or modify
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see 
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *   JBoss, Home of Professional Open Source
 *   Copyright 2007-2011, Red Hat, Inc. and individual contributors
 *   by the @authors tag. See the copyright.txt in the distribution for a
 *   full listing of individual contributors.
 *
 *   This is free software; you can redistribute it and/or modify it
 *   under the terms of the GNU Lesser General Public License as
 *   published by the Free Software Foundation; either version 2.1 of
 *   the License, or (at your option) any later version.
 *
 *   This software is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *   Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this software; if not, write to the Free
 *   Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 *   02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jdiameter.common.impl.controller;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

import org.jdiameter.api.IllegalDiameterStateException;
import org.jdiameter.api.InternalException;
import org.jdiameter.api.Peer;
import org.jdiameter.api.URI;
import org.jdiameter.client.impl.helpers.UIDGenerator;
import org.jdiameter.common.api.statistic.IStatistic;
import org.jdiameter.common.api.statistic.IStatisticManager;
import org.jdiameter.common.api.statistic.IStatisticRecord;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author  Alexandre Mendonca 
 * @author  Bartosz Baranowski 
 */
public class AbstractPeer implements Comparable {

  private static final Logger logger = LoggerFactory.getLogger(AbstractPeer.class);

  public static final int INT_COMMON_APP_ID = 0xffffffff;
  protected static UIDGenerator uid = new UIDGenerator();

  // Statistic
  protected IStatistic statistic;
  protected List perSecondRecords = new ArrayList();
  protected URI uri;
  protected IStatisticManager statisticFactory;

  //Added locks to make statistics creation and removal thread safe
  private Lock statisticsLock = new ReentrantLock();

  public AbstractPeer(URI uri, IStatisticManager statisticFactory) {
    this.uri = uri;
    this.statisticFactory = statisticFactory;
  }

  protected void createPeerStatistics() {
    logger.debug("Creating Peer Statistics for URI {}", this.uri);
    // PCB - Added locking around this so that the stats cannot be attempted
    // to be initialized twice by 2 threads entering this function at the same time
    try {
      statisticsLock.lock();
      if (this.statistic != null) {
        return;
      }
      String uriString = uri == null ? "local" : uri.toString();
      IStatisticRecord appGenRequestCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.AppGenRequest);
      IStatisticRecord appGenCPSRequestCounter =
          statisticFactory.newPerSecondCounterRecord(uriString, IStatisticRecord.Counters.AppGenRequestPerSecond, appGenRequestCounter);
      IStatisticRecord appGenRejectedRequestCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.AppGenRejectedRequest);

      perSecondRecords.add(appGenCPSRequestCounter);

      IStatisticRecord appGenResponseCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.AppGenResponse);
      IStatisticRecord appGenCPSResponseCounter =
          statisticFactory.newPerSecondCounterRecord(uriString, IStatisticRecord.Counters.AppGenResponsePerSecond, appGenResponseCounter);
      IStatisticRecord appGenRejectedResponseCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.AppGenRejectedResponse);

      perSecondRecords.add(appGenCPSResponseCounter);

      IStatisticRecord netGenRequestCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.NetGenRequest);
      IStatisticRecord netGenCPSRequestCounter =
          statisticFactory.newPerSecondCounterRecord(uriString, IStatisticRecord.Counters.NetGenRequestPerSecond, netGenRequestCounter);
      IStatisticRecord netGenRejectedRequestCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.NetGenRejectedRequest);

      perSecondRecords.add(netGenCPSRequestCounter);

      IStatisticRecord netGenResponseCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.NetGenResponse);
      IStatisticRecord netGenCPSResponseCounter =
          statisticFactory.newPerSecondCounterRecord(uriString, IStatisticRecord.Counters.NetGenResponsePerSecond, netGenResponseCounter);
      IStatisticRecord netGenRejectedResponseCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.NetGenRejectedResponse);

      perSecondRecords.add(netGenCPSResponseCounter);

      IStatisticRecord sysGenResponseCounter = statisticFactory.newCounterRecord(IStatisticRecord.Counters.SysGenResponse);

      this.statistic = statisticFactory.newStatistic(uriString, IStatistic.Groups.Peer,
          appGenRequestCounter, appGenCPSRequestCounter, appGenRejectedRequestCounter,
          appGenResponseCounter, appGenCPSResponseCounter, appGenRejectedResponseCounter,
          netGenRequestCounter, netGenCPSRequestCounter, netGenRejectedRequestCounter,
          netGenResponseCounter, netGenCPSResponseCounter, netGenRejectedResponseCounter,
          sysGenResponseCounter
          );
    }
    finally {
      logger.debug("Completed creating Peer Statistics for URI {}: {}", this.uri, this.statistic);
      if (this.statistic == null) {
        logger.warn("Failed to create Peer Statistics for URI {}, creating dummy and setting to disabled", this.uri);
        this.statistic = statisticFactory.newStatistic("local", IStatistic.Groups.Peer);
        this.statistic.enable(false);
      }
      statisticsLock.unlock();
    }
  }

  protected void removePeerStatistics() {
    logger.debug("Removing Peer Statistics for URI {}", this.uri);
    //RG edited this to make removal of peer stats thread safe
    try {
      statisticsLock.lock();
      if (this.statistic == null) {
        return;
      }
      for (IStatisticRecord rec : this.perSecondRecords) {
        this.statisticFactory.removePerSecondCounterRecord(rec);
      }

      this.statisticFactory.removeStatistic(this.statistic);
      this.perSecondRecords.clear();
      this.statistic = null;
    }
    finally {
      logger.debug("Completed removing Peer Statistics for URI {}: {}", this.uri, this.statistic);
      statisticsLock.unlock();
    }
  }

  @Override
  public int compareTo(Peer o) {
    return uri.compareTo(o.getUri());
  }

  /**
   * @throws IllegalDiameterStateException
   * @throws InternalException
   *
   */
  protected void disconnect(int disconnectCause) throws InternalException, IllegalDiameterStateException {
  }
}