/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, 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.engine.transaction.internal;
import java.util.Map;
import org.jboss.logging.Logger;
import org.hibernate.HibernateException;
import org.hibernate.HibernateLogger;
import org.hibernate.cfg.Environment;
import org.hibernate.engine.transaction.internal.jdbc.JdbcTransactionFactory;
import org.hibernate.engine.transaction.internal.jta.CMTTransactionFactory;
import org.hibernate.engine.transaction.internal.jta.JtaTransactionFactory;
import org.hibernate.engine.transaction.spi.TransactionFactory;
import org.hibernate.engine.transaction.spi.TransactionImplementor;
import org.hibernate.service.classloading.spi.ClassLoaderService;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.hibernate.service.spi.BasicServiceInitiator;
/**
* Standard instantiator for the standard {@link TransactionFactory} service.
*
* @author Steve Ebersole
*/
public class TransactionFactoryInitiator<T extends TransactionImplementor> implements BasicServiceInitiator<TransactionFactory> {
private static final HibernateLogger LOG = Logger.getMessageLogger(HibernateLogger.class,
TransactionFactoryInitiator.class.getName());
public static final TransactionFactoryInitiator INSTANCE = new TransactionFactoryInitiator();
@Override
@SuppressWarnings( {"unchecked"})
public Class<TransactionFactory> getServiceInitiated() {
return TransactionFactory.class;
}
@Override
@SuppressWarnings( {"unchecked"})
public TransactionFactory initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
final Object strategy = configurationValues.get( Environment.TRANSACTION_STRATEGY );
if ( TransactionFactory.class.isInstance( strategy ) ) {
return (TransactionFactory) strategy;
}
if ( strategy == null ) {
LOG.usingDefaultTransactionStrategy();
return new JdbcTransactionFactory();
}
final String strategyClassName = mapLegacyNames( strategy.toString() );
LOG.transactionStrategy(strategyClassName);
ClassLoaderService classLoaderService = registry.getService( ClassLoaderService.class );
try {
return (TransactionFactory) classLoaderService.classForName( strategyClassName ).newInstance();
}
catch ( Exception e ) {
throw new HibernateException( "Unable to instantiate specified TransactionFactory class [" + strategyClassName + "]", e );
}
}
private String mapLegacyNames(String name) {
if ( "org.hibernate.transaction.JDBCTransactionFactory".equals( name ) ) {
return JdbcTransactionFactory.class.getName();
}
if ( "org.hibernate.transaction.JTATransactionFactory".equals( name ) ) {
return JtaTransactionFactory.class.getName();
}
if ( "org.hibernate.transaction.CMTTransactionFactory".equals( name ) ) {
return CMTTransactionFactory.class.getName();
}
return name;
}
}