/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.datastore.impl;
import java.util.Map;
import org.hibernate.boot.registry.StandardServiceInitiator;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.ogm.cfg.OgmProperties;
import org.hibernate.ogm.datastore.spi.DatastoreProvider;
import org.hibernate.ogm.util.configurationreader.impl.ConfigurationPropertyReader;
import org.hibernate.ogm.util.configurationreader.impl.ShortNameResolver;
import org.hibernate.ogm.util.impl.Log;
import org.hibernate.ogm.util.impl.LoggerFactory;
import org.hibernate.service.spi.ServiceRegistryImplementor;
import org.hibernate.service.spi.SessionFactoryServiceInitiator;
/**
* Loads the appropriate {@link DatastoreProvider}. Driven by the {@link OgmProperties#DATASTORE_PROVIDER} property.
* <p>
* This is a {@link SessionFactoryServiceInitiator} because a {@code DatastoreProvider} can be a
* {@link org.hibernate.ogm.datastore.spi.StartStoppable} service - the
* {@link org.hibernate.service.spi.SessionFactoryServiceRegistry} calls {@code StartStoppable} and passes the
* {@link org.hibernate.SessionFactory}.
*
* @author Emmanuel Bernard <emmanuel@hibernate.org>
* @author Davide D'Alto <davide@hibernate.org>
*/
public final class DatastoreProviderInitiator implements StandardServiceInitiator<DatastoreProvider> {
public static final DatastoreProviderInitiator INSTANCE = new DatastoreProviderInitiator();
private static final Log log = LoggerFactory.make();
private static final String DEFAULT_DATASTORE_PROVIDER = "infinispan";
@Override
public Class<DatastoreProvider> getServiceInitiated() {
return DatastoreProvider.class;
}
@Override
public DatastoreProvider initiateService(Map configurationValues, ServiceRegistryImplementor registry) {
ConfigurationPropertyReader propertyReader = new ConfigurationPropertyReader( configurationValues, registry.getService( ClassLoaderService.class ) );
DatastoreProvider datastoreProvider = propertyReader.property( OgmProperties.DATASTORE_PROVIDER, DatastoreProvider.class )
.instantiate()
.withDefaultImplementation( DEFAULT_DATASTORE_PROVIDER )
.withShortNameResolver( DatastoreProviderShortNameResolver.INSTANCE )
.getValue();
log.useDatastoreProvider( datastoreProvider.getClass().getName() );
return datastoreProvider;
}
// TODO This only public to support the hack in OgmJtaPlatformInitiator#isNeo4j(); Can be made private once that
// has been removed
public static class DatastoreProviderShortNameResolver implements ShortNameResolver {
private static final DatastoreProviderShortNameResolver INSTANCE = new DatastoreProviderShortNameResolver();
@Override
public boolean isShortName(String name) {
return AvailableDatastoreProvider.isShortName( name );
}
@Override
public String resolve(String shortName) {
return AvailableDatastoreProvider.byShortName( shortName ).getDatastoreProviderClassName();
}
}
}