/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. 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.test.jdbc.proxies;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import org.hibernate.ConnectionReleaseMode;
import org.hibernate.engine.jdbc.internal.LogicalConnectionImpl;
import org.hibernate.engine.jdbc.internal.proxy.ProxyBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.hibernate.testing.junit4.BaseUnitTestCase;
import org.hibernate.test.common.BasicTestingJdbcServiceImpl;
import org.hibernate.test.common.JdbcConnectionAccessImpl;
import org.hibernate.test.common.JournalingConnectionObserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Steve Ebersole
*/
public class AggressiveReleaseTest extends BaseUnitTestCase {
private BasicTestingJdbcServiceImpl services = new BasicTestingJdbcServiceImpl();
@Before
public void setUp() throws SQLException {
services.prepare( true );
Connection connection = null;
Statement stmnt = null;
try {
connection = services.getConnectionProvider().getConnection();
stmnt = connection.createStatement();
stmnt.execute( "drop table SANDBOX_JDBC_TST if exists" );
stmnt.execute( "create table SANDBOX_JDBC_TST ( ID integer, NAME varchar(100) )" );
}
finally {
if ( stmnt != null ) {
try {
stmnt.close();
}
catch ( SQLException ignore ) {
}
}
if ( connection != null ) {
try {
connection.close();
}
catch ( SQLException ignore ) {
}
}
}
}
@After
public void tearDown() throws SQLException {
Connection connection = null;
Statement stmnt = null;
try {
connection = services.getConnectionProvider().getConnection();
stmnt = connection.createStatement();
stmnt.execute( "drop table SANDBOX_JDBC_TST if exists" );
}
finally {
if ( stmnt != null ) {
try {
stmnt.close();
}
catch ( SQLException ignore ) {
}
}
if ( connection != null ) {
try {
connection.close();
}
catch ( SQLException ignore ) {
}
}
}
services.release();
}
@Test
public void testBasicRelease() {
LogicalConnectionImpl logicalConnection = new LogicalConnectionImpl(
null,
ConnectionReleaseMode.AFTER_STATEMENT,
services ,
new JdbcConnectionAccessImpl( services.getConnectionProvider() )
);
Connection proxiedConnection = ProxyBuilder.buildConnection( logicalConnection );
JournalingConnectionObserver observer = new JournalingConnectionObserver();
logicalConnection.addObserver( observer );
try {
PreparedStatement ps = proxiedConnection.prepareStatement( "insert into SANDBOX_JDBC_TST( ID, NAME ) values ( ?, ? )" );
ps.setLong( 1, 1 );
ps.setString( 2, "name" );
ps.execute();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 0, observer.getPhysicalConnectionReleasedCount() );
ps.close();
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
}
catch ( SQLException sqle ) {
fail( "incorrect exception type : sqlexception" );
}
finally {
logicalConnection.close();
}
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
}
@Test
public void testReleaseCircumventedByHeldResources() {
LogicalConnectionImpl logicalConnection = new LogicalConnectionImpl(
null,
ConnectionReleaseMode.AFTER_STATEMENT,
services,
new JdbcConnectionAccessImpl( services.getConnectionProvider() )
);
Connection proxiedConnection = ProxyBuilder.buildConnection( logicalConnection );
JournalingConnectionObserver observer = new JournalingConnectionObserver();
logicalConnection.addObserver( observer );
try {
PreparedStatement ps = proxiedConnection.prepareStatement( "insert into SANDBOX_JDBC_TST( ID, NAME ) values ( ?, ? )" );
ps.setLong( 1, 1 );
ps.setString( 2, "name" );
ps.execute();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 0, observer.getPhysicalConnectionReleasedCount() );
ps.close();
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// open a result set and hold it open...
ps = proxiedConnection.prepareStatement( "select * from SANDBOX_JDBC_TST" );
ps.executeQuery();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// open a second result set
PreparedStatement ps2 = proxiedConnection.prepareStatement( "select * from SANDBOX_JDBC_TST" );
ps2.execute();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// and close it...
ps2.close();
// the release should be circumvented...
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// let the close of the logical connection below release all resources (hopefully)...
}
catch ( SQLException sqle ) {
fail( "incorrect exception type : sqlexception" );
}
finally {
logicalConnection.close();
}
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 2, observer.getPhysicalConnectionReleasedCount() );
}
@Test
public void testReleaseCircumventedManually() {
LogicalConnectionImpl logicalConnection = new LogicalConnectionImpl(
null,
ConnectionReleaseMode.AFTER_STATEMENT,
services,
new JdbcConnectionAccessImpl( services.getConnectionProvider() )
);
Connection proxiedConnection = ProxyBuilder.buildConnection( logicalConnection );
JournalingConnectionObserver observer = new JournalingConnectionObserver();
logicalConnection.addObserver( observer );
try {
PreparedStatement ps = proxiedConnection.prepareStatement( "insert into SANDBOX_JDBC_TST( ID, NAME ) values ( ?, ? )" );
ps.setLong( 1, 1 );
ps.setString( 2, "name" );
ps.execute();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 0, observer.getPhysicalConnectionReleasedCount() );
ps.close();
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 1, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// disable releases...
logicalConnection.disableReleases();
// open a result set...
ps = proxiedConnection.prepareStatement( "select * from SANDBOX_JDBC_TST" );
ps.executeQuery();
assertTrue( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// and close it...
ps.close();
// the release should be circumvented...
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 1, observer.getPhysicalConnectionReleasedCount() );
// let the close of the logical connection below release all resources (hopefully)...
}
catch ( SQLException sqle ) {
fail( "incorrect exception type : sqlexception" );
}
finally {
logicalConnection.close();
}
assertFalse( logicalConnection.getResourceRegistry().hasRegisteredResources() );
assertEquals( 2, observer.getPhysicalConnectionObtainedCount() );
assertEquals( 2, observer.getPhysicalConnectionReleasedCount() );
}
}