/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.jpa.test.lob;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManager;
import org.junit.Test;
import org.hibernate.Session;
import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
import org.hibernate.testing.DialectChecks;
import org.hibernate.testing.RequiresDialectFeature;
import static org.junit.Assert.assertTrue;
/**
* @author Emmanuel Bernard
*/
@RequiresDialectFeature( DialectChecks.SupportsExpectedLobUsagePattern.class )
public class BlobTest extends BaseEntityManagerFunctionalTestCase {
@Test
public void testBlobSerialization() throws Exception {
EntityManager em = getOrCreateEntityManager();
em.getTransaction().begin();
Map<String,String> image = new HashMap<String, String>();
image.put( "meta", "metadata" );
image.put( "data", "imagedata" );
ImageReader reader = new ImageReader();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream( baos );
oos.writeObject( image );
reader.setImage( em.unwrap( Session.class ).getLobHelper().createBlob( baos.toByteArray() ) );
em.persist( reader );
em.getTransaction().commit();
em.close(); //useless but y'a know
em = getOrCreateEntityManager();
em.getTransaction().begin();
reader = em.find( ImageReader.class, reader.getId() );
ObjectInputStream ois = new ObjectInputStream( reader.getImage().getBinaryStream() );
image = (HashMap<String, String>) ois.readObject();
assertTrue( image.containsKey( "meta" ) );
em.getTransaction().commit();
em.close();
}
@Override
public Class[] getAnnotatedClasses() {
return new Class[] { ImageReader.class };
}
}