/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* 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.ogm.datastore.mongodb.test.query;
import static org.fest.assertions.Assertions.assertThat;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.hibernate.ogm.datastore.mongodb.query.impl.MongoDBQueryDescriptor;
import org.hibernate.ogm.datastore.mongodb.query.impl.MongoDBQueryDescriptor.Operation;
import org.junit.Test;
import com.mongodb.BasicDBObject;
/**
* Tests the serialization and de-serialization of {@link MongoDBQueryDescriptor}.
*
* @author Gunnar Morling
*/
public class MongoDBQueryDescriptorSerializationTest {
@Test
public void canSerializeAndDeserialize() throws Exception {
MongoDBQueryDescriptor descriptor = new MongoDBQueryDescriptor(
"test",
Operation.FIND,
new BasicDBObject( "foo", "bar" ),
new BasicDBObject( "foo", 1 ),
new BasicDBObject( "bar", 1 )
);
byte[] bytes = serialize( descriptor );
MongoDBQueryDescriptor deserializedDescriptor = deserialize( bytes );
assertThat( deserializedDescriptor.getCollectionName() ).isEqualTo( descriptor.getCollectionName() );
assertThat( deserializedDescriptor.getOperation() ).isEqualTo( descriptor.getOperation() );
assertThat( deserializedDescriptor.getCriteria() ).isEqualTo( descriptor.getCriteria() );
assertThat( deserializedDescriptor.getProjection() ).isEqualTo( descriptor.getProjection() );
assertThat( deserializedDescriptor.getOrderBy() ).isEqualTo( descriptor.getOrderBy() );
}
private byte[] serialize(MongoDBQueryDescriptor descriptor) throws IOException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
ObjectOutputStream objectOutputStream = new ObjectOutputStream( outputStream );
objectOutputStream.writeObject( descriptor );
objectOutputStream.close();
return outputStream.toByteArray();
}
private MongoDBQueryDescriptor deserialize(byte[] bytes) throws IOException, ClassNotFoundException {
ObjectInputStream inputStream = new ObjectInputStream( new ByteArrayInputStream( bytes ) );
MongoDBQueryDescriptor deserializedDescriptor = (MongoDBQueryDescriptor) inputStream.readObject();
return deserializedDescriptor;
}
}