trunk/java/com/l2jserver/gameserver/handler/ItemHandler.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server 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.
+ * 
+ * L2J Server 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 com.l2jserver.gameserver.handler;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.l2jserver.gameserver.model.items.L2EtcItem;
+
+/**
+ * This class manages handlers of items
+ * @author UnAfraid
+ */
+public class ItemHandler implements IHandler<IItemHandler, L2EtcItem>
+{
+	private final Map<String, IItemHandler> _datatable;
+	
+	/**
+	 * Constructor of ItemHandler
+	 */
+	protected ItemHandler()
+	{
+		_datatable = new HashMap<>();
+	}
+	
+	/**
+	 * Adds handler of item type in <I>datatable</I>.<BR>
+	 * <BR>
+	 * <B><I>Concept :</I></U><BR>
+	 * This handler is put in <I>datatable</I> Map &lt;String ; IItemHandler &gt; for each ID corresponding to an item type (existing in classes of package itemhandlers) sets as key of the Map.
+	 * @param handler (IItemHandler)
+	 */
+	@Override
+	public void registerHandler(IItemHandler handler)
+	{
+		_datatable.put(handler.getClass().getSimpleName(), handler);
+	}
+	
+	@Override
+	public synchronized void removeHandler(IItemHandler handler)
+	{
+		_datatable.remove(handler.getClass().getSimpleName());
+	}
+	
+	/**
+	 * Returns the handler of the item
+	 * @param item
+	 * @return IItemHandler
+	 */
+	@Override
+	public IItemHandler getHandler(L2EtcItem item)
+	{
+		if ((item == null) || (item.getHandlerName() == null))
+		{
+			return null;
+		}
+		return _datatable.get(item.getHandlerName());
+	}
+	
+	/**
+	 * Returns the number of elements contained in datatable
+	 * @return int : Size of the datatable
+	 */
+	@Override
+	public int size()
+	{
+		return _datatable.size();
+	}
+	
+	/**
+	 * Create ItemHandler if doesn't exist and returns ItemHandler
+	 * @return ItemHandler
+	 */
+	public static ItemHandler getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final ItemHandler _instance = new ItemHandler();
+	}
+}