MapBasedEntityNamesResolver.java

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * JBoss, Home of Professional Open Source
 * Copyright 2012 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301, USA.
 */
package org.hibernate.hql.lucene.testutil;

import java.util.HashMap;
import java.util.Map;

import org.hibernate.hql.ast.spi.EntityNamesResolver;

/**
 * A simple {@link EntityNamesResolver} implementation which resolves using their qualified and unqualified names.
 *
 * @author Sanne Grinovero <sanne@hibernate.org> (C) 2012 Red Hat Inc.
 * @author Gunnar Morling
 */
public class MapBasedEntityNamesResolver implements EntityNamesResolver {

	private final Map<String, Class<?>> entityNames;

	public MapBasedEntityNamesResolver(Map<String, Class<?>> entityNames) {
		this.entityNames = entityNames;
	}

	@Override
	public Class<?> getClassFromName(String entityName) {
		return entityNames.get( entityName );
	}

	public static MapBasedEntityNamesResolver forClasses(Class<?>... classes) {
		Map<String, Class<?>> entityNames = new HashMap<String, Class<?>>();

		for ( Class<?> clazz : classes ) {
			entityNames.put( clazz.getCanonicalName(), clazz );
			entityNames.put( clazz.getSimpleName(), clazz );
		}

		return new MapBasedEntityNamesResolver( entityNames );
	}
}