simplebamservice.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 297 行

/*
 * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source 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, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.bam;

import java.util.logging.*;
import java.io.Serializable;

/**
 * Abstract class for a service that implements its own BamAgentStream.
 * 
 * Simple services will implement both the HmtpService and BamAgentStream
 * interfaces in a single class.  This abstract class simplifies the
 * implementation of this kind of service.
 */
public class SimpleBamService extends AbstractBamService
  implements BamStream
{
  private static final Logger log
    = Logger.getLogger(SimpleBamService.class.getName());

  private BamStream _brokerStream;
  private final BamSkeleton _skeleton;

  protected SimpleBamService()
  {
    _skeleton = BamSkeleton.getBamSkeleton(this.getClass());
  }

  protected BamSkeleton getBamSkeleton()
  {
    return _skeleton;
  }

  /**
   * Returns the stream to the broker
   */
  public BamStream getBrokerStream()
  {
    return _brokerStream;
  }

  /**
   * Sets the stream to the broker
   */
  public void setBrokerStream(BamStream brokerStream)
  {
    _brokerStream = brokerStream;
  }
  
  /**
   * Returns the resource's stream
   */
  public BamStream getAgentStream()
  {
    return this;
  }
  
  /**
   * Callback to handle messages
   * 
   * @param to the target JID
   * @param from the source JID
   * @param value the message payload
   */
  public void message(String to, String from, Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " message to=" + to + " from=" + from
		+ logValue(value));
    }

    _skeleton.dispatchMessage(this, to, from, value);
  }
  
  /**
   * Callback to handle messages
   * 
   * @param to the target JID
   * @param from the source JID
   * @param value the message payload
   */
  public void messageError(String to,
			       String from,
			       Serializable value,
			       BamError error)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " messageError to=" + to + " from=" + from
		+ " error=" + error);
    }

    _skeleton.dispatchMessageError(this, to, from, value, error);
  }
  
  public boolean queryGet(long id,
			    String to,
			    String from,
			    Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " querySet id=" + id + " to=" + to
		+ " from=" + from + " value=" + logValue(value));
    }
    
    return _skeleton.dispatchQueryGet(this, id, to, from, value);
  }
  
  public boolean querySet(long id,
			    String to,
			    String from,
			    Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " querySet id=" + id + " to=" + to
		+ " from=" + from + " value=" + logValue(value));
    }
    
    return _skeleton.dispatchQuerySet(this, id, to, from, value);
  }
  
  public void queryResult(long id,
			    String to,
			    String from,
			    Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " queryResult id=" + id + " to=" + to
		+ " from=" + from + " value=" + logValue(value));
    }

     _skeleton.dispatchQueryResult(this, id, to, from, value);
  }
  
  public void queryError(long id,
			   String to,
			   String from,
			   Serializable value,
			   BamError error)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " queryResult id=" + id + " to=" + to
                + " from=" + from + " value=" + logValue(value) 
                + " error=" + logValue(error));
    }

    _skeleton.dispatchQueryError(this, id, to, from, value, error);
  }
  
  /**
   * General presence, for clients announcing availability
   */
  public void presence(String to,
			 String from,
			 Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presence to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresence(this, to, from, value);
  }

  /**
   * General presence, for clients announcing unavailability
   */
  public void presenceUnavailable(String to,
				    String from,
				    Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceUnavailable to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceUnavailable(this, to, from, value);
  }

  /**
   * Presence probe from the server to a client
   */
  public void presenceProbe(String to,
			      String from,
			      Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceProbe to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceProbe(this, to, from, value);
  }

  /**
   * A subscription request from a client
   */
  public void presenceSubscribe(String to,
				  String from,
				  Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceSubscribe to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceSubscribe(this, to, from, value);
  }

  /**
   * A subscription response to a client
   */
  public void presenceSubscribed(String to,
				   String from,
				   Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceSubscribed to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceSubscribed(this, to, from, value);
  }

  /**
   * An unsubscription request from a client
   */
  public void presenceUnsubscribe(String to,
				    String from,
				    Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceUnsubscribe to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceUnsubscribe(this, to, from, value);
  }

  /**
   * A unsubscription response to a client
   */
  public void presenceUnsubscribed(String to,
				     String from,
				     Serializable value)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceUnsubscribed to=" + to + " from=" + from
		+ " value=" + value);
    }

    _skeleton.dispatchPresenceUnsubscribed(this, to, from, value);
  }

  /**
   * An error response to a client
   */
  public void presenceError(String to,
			      String from,
			      Serializable value,
			      BamError error)
  {
    if (log.isLoggable(Level.FINER)) {
      log.finer(this + " presenceError to=" + to + " from=" + from
		+ " error=" + error);
    }

    _skeleton.dispatchPresenceError(this, to, from, value, error);
  }
}