/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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.envers.test.integration.serialization;
import org.hibernate.ejb.Ejb3Configuration;
import org.hibernate.envers.test.AbstractEntityTest;
import org.hibernate.envers.test.Priority;
import org.hibernate.envers.test.entities.onetomany.CollectionRefEdEntity;
import org.hibernate.envers.test.entities.onetomany.CollectionRefIngEntity;
import org.junit.Test;
import javax.persistence.EntityManager;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
/**
* @author Adam Warski (adam at warski dot org)
*/
public class SerializingCollection extends AbstractEntityTest {
private Integer ed1_id;
private Integer ing1_id;
public void configure(Ejb3Configuration cfg) {
cfg.addAnnotatedClass(CollectionRefEdEntity.class);
cfg.addAnnotatedClass(CollectionRefIngEntity.class);
}
@Test
@Priority(10)
public void initData() {
EntityManager em = getEntityManager();
CollectionRefEdEntity ed1 = new CollectionRefEdEntity(1, "data_ed_1");
CollectionRefIngEntity ing1 = new CollectionRefIngEntity(3, "data_ing_1", ed1);
// Revision 1
em.getTransaction().begin();
em.persist(ed1);
em.persist(ing1);
em.getTransaction().commit();
//
ed1_id = ed1.getId();
ing1_id = ing1.getId();
}
@Test
public void testDetach()throws Exception {
CollectionRefIngEntity ing1 = getEntityManager().find(CollectionRefIngEntity.class, ing1_id);
CollectionRefEdEntity rev1 = getAuditReader().find(CollectionRefEdEntity.class, ed1_id, 1);
// First forcing loading of the collection
assert rev1.getReffering().size() == 1;
// Now serializing and de-serializing the
rev1 = serializeDeserialize(rev1);
// And checking the colleciton again
assert rev1.getReffering().contains(ing1);
assert rev1.getReffering().size() == 1;
}
@SuppressWarnings({"unchecked"})
public static <T> T serializeDeserialize(T o) throws Exception {
if (o == null) return null;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(o);
byte[] buffer = baos.toByteArray();
baos.close();
ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
ObjectInputStream ois = new ObjectInputStream(bais);
return (T) ois.readObject();
}
}