content: /**
   * This file is part of Aion-Lightning <aion-lightning.org>.
   *
   *  Aion-Lightning 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 3 of the License, or
   *  (at your option) any later version.
   *
   *  Aion-Lightning 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 General Public License for more details. *
   *  You should have received a copy of the GNU General Public License
   *  along with Aion-Lightning.
   *  If not, see <http://www.gnu.org/licenses/>.
   */
  package com.aionemu.gameserver.taskmanager;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.aionemu.commons.taskmanager.AbstractLockManager;
  import com.aionemu.commons.utils.Rnd;
  import com.aionemu.gameserver.GameServer;
  import com.aionemu.gameserver.GameServer.StartupHook;
  import com.aionemu.gameserver.utils.ThreadPoolManager;
  
  /**
   * @author lord_rex and MrPoke based on l2j-free engines. This can be used for periodic calls.
   */
  public abstract class AbstractPeriodicTaskManager extends AbstractLockManager implements Runnable, StartupHook {
  
  	protected static final Logger log = LoggerFactory.getLogger(AbstractPeriodicTaskManager.class);
  	private final int period;
  
  	public AbstractPeriodicTaskManager(int period) {
  		this.period = period;
  
  		GameServer.addStartupHook(this);
  
  		log.debug("[PeriodicTaskManager] " + getClass().getSimpleName() + ": Initialized.");
  	}
  
  	@Override
  	public final void onStartup() {
  		ThreadPoolManager.getInstance().scheduleAtFixedRate(this, 1000 + Rnd.get(period), Rnd.get(period - 5, period + 5));
  	}
  
  	@Override
  	public abstract void run();
  }
  