Project update.

trunk/java/com/l2jmobius/gameserver/handler/ActionShiftHandler.java

@@ -0,0 +1,78 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * 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 com.l2jmobius.gameserver.handler;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.l2jmobius.gameserver.enums.InstanceType;
+
+/**
+ * @author UnAfraid
+ */
+public class ActionShiftHandler implements IHandler<IActionShiftHandler, InstanceType>
+{
+	private final Map<InstanceType, IActionShiftHandler> _actionsShift;
+	
+	protected ActionShiftHandler()
+	{
+		_actionsShift = new HashMap<>();
+	}
+	
+	@Override
+	public void registerHandler(IActionShiftHandler handler)
+	{
+		_actionsShift.put(handler.getInstanceType(), handler);
+	}
+	
+	@Override
+	public synchronized void removeHandler(IActionShiftHandler handler)
+	{
+		_actionsShift.remove(handler.getInstanceType());
+	}
+	
+	@Override
+	public IActionShiftHandler getHandler(InstanceType iType)
+	{
+		IActionShiftHandler result = null;
+		for (InstanceType t = iType; t != null; t = t.getParent())
+		{
+			result = _actionsShift.get(t);
+			if (result != null)
+			{
+				break;
+			}
+		}
+		return result;
+	}
+	
+	@Override
+	public int size()
+	{
+		return _actionsShift.size();
+	}
+	
+	public static ActionShiftHandler getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final ActionShiftHandler _instance = new ActionShiftHandler();
+	}
+}