/*
 * This program 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. This program 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 this program. If
 * not, see <http://www.gnu.org/licenses/>.
 */
package silentium.gameserver.handler;

import gnu.trove.map.hash.TIntObjectHashMap;
import silentium.gameserver.templates.item.L2EtcItem;

public class ItemHandler
{
	private final TIntObjectHashMap<IItemHandler> _datatable;

	public static ItemHandler getInstance()
	{
		return SingletonHolder._instance;
	}

	/**
	 * Returns the number of elements contained in datatable
	 * 
	 * @return int : Size of the datatable
	 */
	public int size()
	{
		return _datatable.size();
	}

	/**
	 * Constructor of ItemHandler
	 */
	protected ItemHandler()
	{
		_datatable = new TIntObjectHashMap<>();
	}

	public void registerItemHandler(IItemHandler handler)
	{
		_datatable.put(handler.getClass().getSimpleName().intern().hashCode(), handler);
	}

	public IItemHandler getItemHandler(L2EtcItem item)
	{
		if (item == null || item.getHandlerName() == null)
			return null;

		return _datatable.get(item.getHandlerName().hashCode());
	}

	private static class SingletonHolder
	{
		protected static final ItemHandler _instance = new ItemHandler();
	}
}