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.utils.chathandlers;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.aionemu.gameserver.model.gameobjects.player.Player;
  import com.aionemu.gameserver.utils.PacketSendUtility;
  
  /**
   * @author KID
   */
  public abstract class ChatCommand {
  
  	private String alias;
  	private Byte level;
  	static final String[] EMPTY_PARAMS = new String[] {};
  	static final Logger log = LoggerFactory.getLogger(ChatCommand.class);
  
  	public ChatCommand(String alias) {
  		this.alias = alias;
  	}
  
  	public boolean run(Player player, String... params) {
  		try {
  			execute(player, params);
  			return true;
  		}
  		catch (Exception e) {
  			log.error("", e);
  			onFail(player, e.getMessage());
  			return false;
  		}
  	}
  
  	public final String getAlias() {
  		return alias;
  	}
  
  	public void setAccessLevel(Byte level) {
  		this.level = level;
  	}
  
  	public final Byte getLevel() {
  		return level;
  	}
  
  	abstract boolean checkLevel(Player player);
  
  	abstract boolean process(Player player, String text);
  
  	public abstract void execute(Player player, String... params);
  
  	public void onFail(Player player, String message) {
  		PacketSendUtility.sendMessage(player, message);
  	}
  }
  