/*
 * Copyright (c) Thomas Parker, 2009.
 * 
 * This program 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 program 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
package pcgen.cdom.facet;

import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;

import pcgen.cdom.helper.SpringHelper;

/**
 * @author Thomas Parker (thpr [at] yahoo.com)
 * 
 * FacetLibrary is a container for the Facets that process information about
 * PlayerCharacters
 */
public final class FacetLibrary
{
	
	private FacetLibrary()
	{
		//Do not instantiate
	}

	private static Map<Class<?>, Object> facets = new HashMap<>();

	public static <T extends Object> T getFacet(Class<T> cl)
	{
		T facet = (T) facets.get(cl);
		if (facet == null)
		{
			// First check for the facet being defined by Spring
			facet = SpringHelper.getBean(cl);
			if (facet == null)
			{
				// Fall back to the old hardcoded system
				//System.err.println("Using Legacy Load for Facet: " + cl.getName());
				try
				{
					facet = cl.getConstructor()
							.newInstance();
				}
				catch (InstantiationException | IllegalAccessException e)
				{
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				catch (NoSuchMethodException e)
				{
					e.printStackTrace();
				}
				catch (InvocationTargetException e)
				{
					e.printStackTrace();
				}
			}
			facets.put(cl, facet);
		}
		return facet;
	}

}