/*
* 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.cache.internal;
import java.util.Map;
import org.hibernate.cache.spi.RegionFactory;
import org.hibernate.service.classloading.spi.ClassLoaderService;
import org.hibernate.service.spi.BasicServiceInitiator;
import org.hibernate.service.spi.ServiceException;
import org.hibernate.service.spi.ServiceRegistryImplementor;
/**
* Initiator for the {@link RegionFactory} service.
*
* @author Hardy Ferentschik
*/
public class RegionFactoryInitiator implements BasicServiceInitiator<RegionFactory> {
public static final RegionFactoryInitiator INSTANCE = new RegionFactoryInitiator();
/**
* Property name to use to configure the full qualified class name for the {@code RegionFactory}
*/
public static final String IMPL_NAME = "hibernate.cache.region.factory_class";
@Override
public Class<RegionFactory> getServiceInitiated() {
return RegionFactory.class;
}
@Override
@SuppressWarnings( { "unchecked" })
public RegionFactory initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
final Object impl = configurationValues.get( IMPL_NAME );
if ( impl == null ) {
return new NoCachingRegionFactory();
}
if ( getServiceInitiated().isInstance( impl ) ) {
return (RegionFactory) impl;
}
Class<? extends RegionFactory> customImplClass = null;
if ( Class.class.isInstance( impl ) ) {
customImplClass = (Class<? extends RegionFactory>) impl;
}
else {
customImplClass = registry.getService( ClassLoaderService.class )
.classForName( mapLegacyNames( impl.toString() ) );
}
try {
return customImplClass.newInstance();
}
catch ( Exception e ) {
throw new ServiceException(
"Could not initialize custom RegionFactory impl [" + customImplClass.getName() + "]", e
);
}
}
// todo this shouldn't be public (nor really static):
// hack for org.hibernate.cfg.SettingsFactory.createRegionFactory()
public static String mapLegacyNames(final String name) {
if ( "org.hibernate.cache.EhCacheRegionFactory".equals( name ) ) {
return "org.hibernate.cache.ehcache.EhCacheRegionFactory";
}
if ( "org.hibernate.cache.SingletonEhCacheRegionFactory".equals( name ) ) {
return "org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory";
}
return name;
}
}