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.model.team2.common.events;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.aionemu.gameserver.model.gameobjects.player.Player;
  import com.aionemu.gameserver.model.team2.TemporaryPlayerTeam;
  import com.aionemu.gameserver.model.team2.group.events.ChangeGroupLeaderEvent;
  
  /**
   * @author ATracer
   */
  public abstract class ChangeLeaderEvent<T extends TemporaryPlayerTeam<?>> extends AbstractTeamPlayerEvent<T> {
  
  	private static final Logger log = LoggerFactory.getLogger(ChangeGroupLeaderEvent.class);
  
  	public ChangeLeaderEvent(T team, Player eventPlayer) {
  		super(team, eventPlayer);
  	}
  
  	/**
  	 * New leader either is null or should be online
  	 */
  	@Override
  	public boolean checkCondition() {
  		return eventPlayer == null || eventPlayer.isOnline();
  	}
  
  	@Override
  	public boolean apply(Player player) {
  		if (!player.getObjectId().equals(team.getLeader().getObjectId()) && player.isOnline()) {
  			changeLeaderTo(player);
  			return false;
  		}
  		return true;
  	}
  
  	/**
  	 * @param oldLeader
  	 */
  	protected void checkLeaderChanged(Player oldLeader) {
  		if (team.isLeader(oldLeader)) {
  			log.info("TEAM2: leader is not changed, total: {}, online: {}", team.size(), team.onlineMembers());
  		}
  	}
  
  	protected abstract void changeLeaderTo(Player player);
  }
  