/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.search.store.impl;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import org.hibernate.search.SearchException;
import org.hibernate.search.store.DirectoryProvider;
import org.hibernate.search.spi.WorkerBuildContext;
import org.hibernate.search.util.impl.ClassLoaderHelper;
/**
* Create a Lucene directory provider which can be configured
* through the following properties:
* <ul>
* <li><i>hibernate.search.default.*</i></li>
* <li><i>hibernate.search.<indexname>.*</i>,</li>
* </ul>where <i><indexname></i> properties have precedence over default ones.
* <p/>
* The implementation is described by
* <i>hibernate.search.[default|indexname].directory_provider</i>.
* If none is defined the default value is FSDirectory.
*
* @author Emmanuel Bernard
* @author Sylvain Vieujot
* @author Hardy Ferentschik
* @author Sanne Grinovero
*/
public class DirectoryProviderFactory {
private static final Map<String, String> defaultProviderClasses;
static {
defaultProviderClasses = new HashMap<String, String>( 6 );
defaultProviderClasses.put( "", FSDirectoryProvider.class.getName() );
defaultProviderClasses.put( "filesystem", FSDirectoryProvider.class.getName() );
defaultProviderClasses.put( "filesystem-master", FSMasterDirectoryProvider.class.getName() );
defaultProviderClasses.put( "filesystem-slave", FSSlaveDirectoryProvider.class.getName() );
defaultProviderClasses.put( "ram", RAMDirectoryProvider.class.getName() );
defaultProviderClasses.put( "infinispan", "org.hibernate.search.infinispan.impl.InfinispanDirectoryProvider" );
}
public static DirectoryProvider<?> createDirectoryProvider(String directoryProviderName, Properties indexProps, WorkerBuildContext context) {
String className = indexProps.getProperty( "directory_provider", "" );
String maybeShortCut = className.toLowerCase();
DirectoryProvider<?> provider;
//try and use the built-in shortcuts before loading the provider as a fully qualified class name
if ( defaultProviderClasses.containsKey( maybeShortCut ) ) {
String fullClassName = defaultProviderClasses.get( maybeShortCut );
provider = ClassLoaderHelper.instanceFromName( DirectoryProvider.class,
fullClassName, DirectoryProviderFactory.class, "directory provider" );
}
else {
provider = ClassLoaderHelper.instanceFromName(
DirectoryProvider.class, className,
DirectoryProviderFactory.class, "directory provider"
);
}
try {
provider.initialize( directoryProviderName, indexProps, context );
}
catch ( Exception e ) {
throw new SearchException( "Unable to initialize directory provider: " + directoryProviderName, e );
}
return provider;
}
}