package com.planet_ink.coffee_mud.core.collections;

import java.util.*;

/*
   Copyright 2013-2022 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 SLinkedHashtable<K, F> implements java.util.Map<K, F>, java.io.Serializable
{
	private static final long	         serialVersionUID	= 6687178785122561993L;
	private volatile LinkedHashMap<K, F>	H;

	public SLinkedHashtable()
	{
		super();
		H = new LinkedHashMap<K, F>();
	}

	public SLinkedHashtable(final int size)
	{
		super();
		H = new LinkedHashMap<K, F>(size);
	}

	public SLinkedHashtable(final Map<K, F> H)
	{
		super();
		this.H = new LinkedHashMap<K, F>();
		if (H != null)
		{
			for (final K o : H.keySet())
				put(o, H.get(o));
		}
	}

	@SuppressWarnings("unchecked")
	public SLinkedHashtable(final Object[][] H)
	{
		super();
		this.H = new LinkedHashMap<K, F>();
		if (H != null)
		{
			for (final Object[] o : H)
				this.H.put((K) o[0], (F) o[1]);
		}
	}

	@SuppressWarnings("unchecked")
	public synchronized Hashtable<K, F> toHashtable()
	{
		return (Hashtable<K, F>) H.clone();
	}

	public synchronized Vector<String> toStringVector(final String divider)
	{
		final Vector<String> V = new Vector<String>(size());
		for (final Object S : keySet())
		{
			if (S != null)
			{
				final Object O = get(S);
				if (O == null)
					V.add(S.toString() + divider);
				else
					V.add(S.toString() + divider + O.toString());
			}
		}
		return V;
	}

	@SuppressWarnings("unchecked")

	@Override
	public synchronized void clear()
	{
		H = (LinkedHashMap<K, F>) H.clone();
		H.clear();
	}

	@SuppressWarnings("unchecked")
	public synchronized SLinkedHashtable<K, F> copyOf()
	{
		final SLinkedHashtable<K, F> SH = new SLinkedHashtable<K, F>();
		SH.H = (LinkedHashMap<K, F>) H.clone();
		return SH;
	}

	public synchronized boolean contains(final Object arg0)
	{
		return H.containsKey(arg0);
	}

	@Override
	public synchronized boolean containsKey(final Object arg0)
	{
		return H.containsKey(arg0);
	}

	@Override
	public synchronized boolean containsValue(final Object arg0)
	{
		return H.containsValue(arg0);
	}

	public synchronized Enumeration<F> elements()
	{
		return new IteratorEnumeration<F>(H.values().iterator());
	}

	public synchronized Enumeration<Map.Entry<K, F>> entries()
	{
		return new IteratorEnumeration<Map.Entry<K, F>>(H.entrySet().iterator());
	}

	@Override
	public synchronized Set<java.util.Map.Entry<K, F>> entrySet()
	{
		return H.entrySet();
	}

	@Override
	public boolean equals(final Object arg0)
	{
		return this == arg0;
	}

	@Override
	public synchronized F get(final Object arg0)
	{
		return H.get(arg0);
	}

	@Override
	public int hashCode()
	{
		return super.hashCode();
	}

	@Override
	public synchronized boolean isEmpty()
	{
		return H.isEmpty();
	}

	public synchronized Enumeration<K> keys()
	{
		return new IteratorEnumeration<K>(H.keySet().iterator());
	}

	@Override
	public synchronized Set<K> keySet()
	{
		return H.keySet();
	}

	@SuppressWarnings("unchecked")

	@Override
	public synchronized F put(final K arg0, final F arg1)
	{
		H = (LinkedHashMap<K, F>) H.clone();
		return H.put(arg0, arg1);
	}

	@SuppressWarnings("unchecked")

	@Override
	public synchronized F remove(final Object arg0)
	{
		H = (LinkedHashMap<K, F>) H.clone();
		return H.remove(arg0);
	}

	@Override
	public synchronized int size()
	{
		return H.size();
	}

	@Override
	public String toString()
	{
		return super.toString();
	}

	@Override
	public synchronized Collection<F> values()
	{
		return new ReadOnlyCollection<F>(H.values());
	}

	@SuppressWarnings("unchecked")

	@Override
	public synchronized void putAll(final Map<? extends K, ? extends F> arg0)
	{
		H = (LinkedHashMap<K, F>) H.clone();
		H.putAll(arg0);
	}

}
