/*
 * Copyright (c) 1998-2011 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.cloud.loadbalance;

import com.caucho.env.service.*;

/**
 * LoadBalanceService distributes requests across a group of clients.
 */
public class LoadBalanceService extends AbstractResinSubSystem
{
  private final LoadBalanceFactory _factory;

  /**
   * Creates a new load balance service.
   */
  public LoadBalanceService(LoadBalanceFactory factory)
  {
    _factory = factory;
  }
  
  public static LoadBalanceService
    createAndAddService(LoadBalanceFactory factory)
  {
    ResinSystem system = preCreate(LoadBalanceService.class);
    
    LoadBalanceService service = new LoadBalanceService(factory);
    system.addService(LoadBalanceService.class, service);
    
    return service;
  }
  
  public static LoadBalanceService getCurrent()
  {
    return ResinSystem.getCurrentService(LoadBalanceService.class);
  }
  
  public LoadBalanceBuilder createBuilder()
  {
    return _factory.createBuilder();
  }
  
  //
  // lifecycle
  //

  @Override
  public String toString()
  {
    return (getClass().getSimpleName() + "[]");
  }
}