/*
 * Copyright 2007 (C) Tom Parker <thpr@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
 */
package pcgen.rules.context;

import java.net.URI;

import pcgen.base.util.HashMapToList;
import pcgen.cdom.base.CDOMObject;
import pcgen.cdom.base.Loadable;

class EditorReferenceContext extends RuntimeReferenceContext
{

	private final HashMapToList<CDOMObject, CDOMObject> copyMap = new HashMapToList<>();
	private final HashMapToList<CDOMObject, CDOMObject> modMap = new HashMapToList<>();
	private final HashMapToList<URI, Loadable> forgetMap = new HashMapToList<>();

	@Override
	<T extends CDOMObject> T performCopy(T object, String copyName)
	{
		try
		{
			CDOMObject copy = object.getClass().newInstance();
			copyMap.addToListFor(object, copy);
		}
		catch (InstantiationException e)
		{
			throw new IllegalArgumentException("Class "
					+ object.getClass().getName()
					+ " must possess a zero-argument constructor", e);
		}
		catch (IllegalAccessException e)
		{
			throw new IllegalArgumentException("Class "
					+ object.getClass().getName()
					+ " must possess a public zero-argument constructor", e);
		}
		return null;
	}

	@Override
	public <T extends CDOMObject> T performMod(T object)
	{
		try
		{
			CDOMObject copy = object.getClass().newInstance();
			modMap.addToListFor(object, copy);
		}
		catch (InstantiationException e)
		{
			throw new IllegalArgumentException("Class "
					+ object.getClass().getName()
					+ " must possess a zero-argument constructor", e);
		}
		catch (IllegalAccessException e)
		{
			throw new IllegalArgumentException("Class "
					+ object.getClass().getName()
					+ " must possess a public zero-argument constructor", e);
		}
		return null;
	}

	@Override
	public <T extends Loadable> boolean forget(T obj)
	{
		/*
		 * Don't want to call super. here as that only deals with abbreviations
		 * and would actually delete the object out of the reference context
		 * (bad!)
		 */
		forgetMap.addToListFor(getSourceURI(), obj);
		return true;
	}

	public void purge(CDOMObject cdo)
	{
		super.forget(cdo);
	}

}