Hibernate example source code file (PersisterFactoryInitiator.java)

This example Hibernate source code file (PersisterFactoryInitiator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

class, class, could, impl_name, object, override, persisterfactory, persisterfactory, persisterfactoryimpl, persisterfactoryinitiator, persisterfactoryinitiator, serviceexception, string, string, util

The Hibernate PersisterFactoryInitiator.java source code

/*
 * 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.persister.internal;

import java.util.Map;

import org.hibernate.persister.spi.PersisterFactory;
import org.hibernate.service.classloading.spi.ClassLoaderService;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.hibernate.service.spi.BasicServiceInitiator;
import org.hibernate.service.spi.ServiceException;

/**
 * @author Steve Ebersole
 */
public class PersisterFactoryInitiator implements BasicServiceInitiator<PersisterFactory> {
	public static final PersisterFactoryInitiator INSTANCE = new PersisterFactoryInitiator();

	public static final String IMPL_NAME = "hibernate.persister.factory";

	@Override
	public Class<PersisterFactory> getServiceInitiated() {
		return PersisterFactory.class;
	}

	@Override
	@SuppressWarnings( {"unchecked"})
	public PersisterFactory initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
		final Object customImpl = configurationValues.get( IMPL_NAME );
		if ( customImpl == null ) {
			return new PersisterFactoryImpl();
		}

		if ( PersisterFactory.class.isInstance( customImpl ) ) {
			return (PersisterFactory) customImpl;
		}

		final Class<? extends PersisterFactory> customImplClass = Class.class.isInstance( customImpl )
				? ( Class<? extends PersisterFactory> ) customImpl
				: locate( registry, customImpl.toString() );
		try {
			return customImplClass.newInstance();
		}
		catch (Exception e) {
			throw new ServiceException( "Could not initialize custom PersisterFactory impl [" + customImplClass.getName() + "]", e );
		}
	}

	private Class<? extends PersisterFactory> locate(ServiceRegistryImplementor registry, String className) {
		return registry.getService( ClassLoaderService.class ).classForName( className );
	}
}