/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat, Inc.
 *
 * 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, as published by the Free Software Foundation.
 *
 * 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 distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.search.test.jpa;

import org.apache.lucene.index.Term;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.hibernate.search.jpa.FullTextEntityManager;
import org.hibernate.search.jpa.Search;
import org.hibernate.search.test.SerializationTestHelper;
import org.hibernate.search.test.TestConstants;

/**
 * Serialization test for entity manager. HSEARCH-117.
 * 
 * @author Hardy Ferentschik
 */
public class EntityManagerSerializationTest extends JPATestCase {

	/**
	 * Test that a entity manager can successfully be serialized and
	 * deserialized.
	 * 
	 * @throws Exception
	 *             in case the test fails.
	 */
	public void testSerialization() throws Exception {
		FullTextEntityManager em = Search.getFullTextEntityManager(factory.createEntityManager());

		indexSearchAssert(em);

		FullTextEntityManager clone = SerializationTestHelper.duplicateBySerialization( em );

		indexSearchAssert(clone);

		clone.close();
		em.close();
	}

	public Class[] getAnnotatedClasses() {
		return new Class[] { Bretzel.class };
	}

	/**
	 * Helper method for testing the entity manager before and after
	 * serialization.
	 * 
	 * @param em
	 * @throws Exception
	 */
	private static void indexSearchAssert(FullTextEntityManager em) throws Exception {
		em.getTransaction().begin();
		Bretzel bretzel = new Bretzel(23, 34);
		em.persist(bretzel);
		em.getTransaction().commit();
		em.clear();
		em.getTransaction().begin();
		QueryParser parser = new QueryParser( TestConstants.getTargetLuceneVersion(), "title", TestConstants.stopAnalyzer );
		Query query = parser.parse("saltQty:noword");
		assertEquals(0, em.createFullTextQuery(query).getResultList().size());
		query = new TermQuery(new Term("saltQty", "23.0"));
		assertEquals("getResultList", 1, em.createFullTextQuery(query)
				.getResultList().size());
		assertEquals("getSingleResult and object retrieval", 23f, ((Bretzel) em
				.createFullTextQuery(query).getSingleResult()).getSaltQty());
		assertEquals(1, em.createFullTextQuery(query).getResultSize());
		em.getTransaction().commit();

		em.clear();

		em.getTransaction().begin();
		em.remove(em.find(Bretzel.class, bretzel.getId()));
		em.getTransaction().commit();
	}
}