/*
* 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.tool.hbm2ddl;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.boot.registry.internal.StandardServiceRegistryImpl;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.jdbc.spi.SqlExceptionHelper;
import org.hibernate.internal.util.config.ConfigurationHelper;
/**
* A {@link ConnectionHelper} implementation based on an internally
* built and managed {@link ConnectionProvider}.
*
* @author Steve Ebersole
*/
class ManagedProviderConnectionHelper implements ConnectionHelper {
private Properties cfgProperties;
private StandardServiceRegistryImpl serviceRegistry;
private Connection connection;
public ManagedProviderConnectionHelper(Properties cfgProperties) {
this.cfgProperties = cfgProperties;
}
public void prepare(boolean needsAutoCommit) throws SQLException {
serviceRegistry = createServiceRegistry( cfgProperties );
connection = serviceRegistry.getService( ConnectionProvider.class ).getConnection();
if ( needsAutoCommit && ! connection.getAutoCommit() ) {
connection.commit();
connection.setAutoCommit( true );
}
}
private static StandardServiceRegistryImpl createServiceRegistry(Properties properties) {
Environment.verifyProperties( properties );
ConfigurationHelper.resolvePlaceHolders( properties );
return (StandardServiceRegistryImpl) new StandardServiceRegistryBuilder().applySettings( properties ).build();
}
public Connection getConnection() throws SQLException {
return connection;
}
public void release() throws SQLException {
try {
releaseConnection();
}
finally {
releaseServiceRegistry();
}
}
private void releaseConnection() throws SQLException {
if ( connection != null ) {
try {
new SqlExceptionHelper().logAndClearWarnings( connection );
}
finally {
try {
serviceRegistry.getService( ConnectionProvider.class ).closeConnection( connection );
}
finally {
connection = null;
}
}
}
}
private void releaseServiceRegistry() {
if ( serviceRegistry != null ) {
try {
serviceRegistry.destroy();
}
finally {
serviceRegistry = null;
}
}
}
}