PointBuyLoader.java

/*
 * PointBuyLoader.java
 * Copyright 2010 (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
 *
 * Created on October 08, 2003, 12:00 PM
 *
 * Current Ver: $Revision$ <br>
 */
package pcgen.persistence.lst;

import java.net.URI;

import pcgen.cdom.base.Loadable;
import pcgen.core.PointBuyCost;
import pcgen.core.PointBuyMethod;
import pcgen.rules.context.LoadContext;
import pcgen.util.Logging;

/**
 * This class is a LstFileLoader used to load point-buy methods.
 */
public class PointBuyLoader extends SimpleLoader<Loadable>
{

	public PointBuyLoader()
	{
		super(Loadable.class);
	}

	@Override
	protected Loadable getLoadable(LoadContext context, String token,
			URI sourceURI)
	{
		final int colonLoc = token.indexOf(':');
		if (colonLoc == -1)
		{
			Logging.errorPrint("Invalid Token - does not contain a colon: '"
					+ token + "' in " + sourceURI);
			return null;
		}
		else if (colonLoc == 0)
		{
			Logging.errorPrint("Invalid Token - starts with a colon: '" + token
					+ "' in " + sourceURI);
			return null;
		}
		else if (colonLoc == (token.length() - 1))
		{
			Logging.errorPrint("Invalid Token - "
					+ "ends with a colon (no value): '" + token + "' in "
					+ sourceURI);
			return null;
		}
		String key = token.substring(0, colonLoc);
		Class<? extends Loadable> loadClass;
		if ("METHOD".equals(key))
		{
			loadClass = PointBuyMethod.class;
		}
		else if ("STAT".equals(key))
		{
			loadClass = PointBuyCost.class;
		}
		else
		{
			Logging.errorPrint("Invalid Token '" + key
					+ "' as the first key in " + sourceURI);
			return null;
		}
		String name = token.substring(colonLoc + 1);
		if ((name == null) || name.isEmpty())
		{
			Logging.errorPrint("Invalid Token '" + key + "' had no value in "
					+ sourceURI);
			return null;
		}
		Loadable loadable = context.getReferenceContext().constructCDOMObject(loadClass, name.intern());
		loadable.setSourceURI(sourceURI);
		return loadable;
	}

}