/* * 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.transaction;import java.util.Properties;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.hibernate.HibernateException;import org.hibernate.cfg.Environment;import org.hibernate.util.ReflectHelper;/** * Helper for creating {@link TransactionFactory} instances. * * @author Gavin King */public final class TransactionFactoryFactory {	private static final Logger log = LoggerFactory.getLogger( TransactionFactoryFactory.class );	/**	 * Create an appropriate transaction factory based on the given configuration	 * properties.	 *	 * @param transactionProps transaction properties	 *	 * @return The appropriate transaction factory.	 *	 * @throws HibernateException Indicates a problem creating the appropriate	 * transaction factory.	 */	public static TransactionFactory buildTransactionFactory(Properties transactionProps) throws HibernateException {		String strategyClassName = transactionProps.getProperty( Environment.TRANSACTION_STRATEGY );		if ( strategyClassName == null ) {			log.info( "Using default transaction strategy (direct JDBC transactions)" );			return new JDBCTransactionFactory();		}		log.info( "Transaction strategy: " + strategyClassName );		TransactionFactory factory;		try {			factory = ( TransactionFactory ) ReflectHelper.classForName( strategyClassName ).newInstance();		}		catch ( ClassNotFoundException e ) {			log.error( "TransactionFactory class not found", e );			throw new HibernateException( "TransactionFactory class not found: " + strategyClassName );		}		catch ( IllegalAccessException e ) {			log.error( "Failed to instantiate TransactionFactory", e );			throw new HibernateException( "Failed to instantiate TransactionFactory: " + e );		}		catch ( java.lang.InstantiationException e ) {			log.error( "Failed to instantiate TransactionFactory", e );			throw new HibernateException( "Failed to instantiate TransactionFactory: " + e );		}		factory.configure( transactionProps );		return factory;	}	/**	 * Disallow instantiation	 */	private TransactionFactoryFactory() {	}}