package com.planet_ink.coffee_mud.core.collections;

import com.planet_ink.coffee_mud.core.interfaces.*;
import com.planet_ink.coffee_mud.core.*;
import com.planet_ink.coffee_mud.core.collections.*;
import com.planet_ink.coffee_mud.Abilities.interfaces.*;
import com.planet_ink.coffee_mud.Areas.interfaces.*;
import com.planet_ink.coffee_mud.Behaviors.interfaces.*;
import com.planet_ink.coffee_mud.CharClasses.interfaces.*;
import com.planet_ink.coffee_mud.Commands.interfaces.*;
import com.planet_ink.coffee_mud.Common.interfaces.*;
import com.planet_ink.coffee_mud.Exits.interfaces.*;
import com.planet_ink.coffee_mud.Items.interfaces.*;
import com.planet_ink.coffee_mud.Libraries.interfaces.*;
import com.planet_ink.coffee_mud.Locales.interfaces.*;
import com.planet_ink.coffee_mud.MOBS.interfaces.*;
import com.planet_ink.coffee_mud.Races.interfaces.*;
import java.util.*;
import java.net.*;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.SelectorProvider;
import java.io.*;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.*;

/*
   Copyright 2010-2022 Bo Zimmerman

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

	   http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */
public class UniqueEntryBlockingQueue<K> extends ArrayBlockingQueue<K>
{
	private static final long	serialVersionUID	= 3311623439390188911L;

	public UniqueEntryBlockingQueue(final int capacity)
	{
		super(capacity);
	}

	public UniqueEntryBlockingQueue(final int capacity, final boolean fair)
	{
		super(capacity, fair);
	}

	public UniqueEntryBlockingQueue(final int capacity, final boolean fair, final Collection<? extends K> c)
	{
		super(capacity, fair, c);
	}

	@Override
	public synchronized boolean offer(final K e)
	{
		if (!contains(e))
			return super.offer(e);
		return true;
	}

	@Override
	public synchronized boolean offer(final K e, final long timeout, final TimeUnit unit) throws InterruptedException
	{
		if (!contains(e))
			return super.offer(e, timeout, unit);
		return true;
	}

	@Override
	public synchronized void put(final K e) throws InterruptedException
	{
		if (!contains(e))
			super.put(e);
	}

	@Override
	public synchronized boolean add(final K e)
	{
		if (!contains(e))
			return super.add(e);
		return true;
	}

	@Override
	public synchronized boolean addAll(final Collection<? extends K> c)
	{
		if (c == null)
			return true;
		for (final K k : c)
		{
			if (!contains(k))
				add(k);
		}
		return true;
	}
}
