/*
 * DefaultMapFacade.java
 * Copyright 2012 (C) Connor Petty <cpmeister@users.sourceforge.net>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Created on Mar 17, 2012, 8:54:27 PM
 */
package pcgen.facade.util;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 *
 * @author Connor Petty <cpmeister@users.sourceforge.net>
 */
public class DefaultMapFacade<K, V> extends AbstractMapFacade<K, V>
{

	private Map<K, V> map;

	public DefaultMapFacade()
	{
		this.map = new HashMap<>();
	}

	public DefaultMapFacade(Map<? extends K, ? extends V> map)
	{
		this.map = new HashMap<>(map);
	}

	@Override
	public Set<K> getKeys()
	{
		return Collections.unmodifiableSet(map.keySet());
	}

	@Override
	public V getValue(K key)
	{
		return map.get(key);
	}

	public void putValue(K key, V value)
	{
		boolean hasKey = map.containsKey(key);
		V oldValue = map.put(key, value);
		if (hasKey)
		{
			fireValueChanged(this, key, oldValue, value);
		}
		else
		{
			fireKeyAdded(this, key, value);
		}
	}

	public void removeKey(K key)
	{
		if (map.containsKey(key))
		{
			V value = map.remove(key);
			fireKeyRemoved(this, key, value);
		}
	}

	public void setContents(Map<? extends K, ? extends V> newMap)
	{
		map.clear();
		map.putAll(newMap);
		fireKeysChanged(this);
	}

	public void clear()
	{
		map.clear();
		fireKeysChanged(this);
	}

	@Override
	public String toString()
	{
		return "DefaultMapFacade [map=" + map + "]"; //$NON-NLS-1$
	}

}