/*
* Copyright 2004-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.compass.gps.device.jpa.indexer;
import javax.persistence.EntityManagerFactory;
import org.compass.core.config.CompassSettings;
import org.compass.core.util.ClassUtils;
import org.compass.gps.device.jpa.JpaGpsDeviceException;
import org.compass.gps.device.jpa.extractor.NativeJpaHelper;
/**
* @author kimchy
*/
public abstract class JpaIndexEntitiesIndexerDetector {
public static JpaIndexEntitiesIndexer detectEntitiesIndexer(EntityManagerFactory entityManagerFactory, CompassSettings settings) {
String locatorClassName =
NativeJpaHelper.detectNativeJpa(entityManagerFactory, new NativeJpaHelper.NativeJpaCallback<String>() {
public String onHibernate() {
return "org.compass.gps.device.jpa.indexer.HibernateJpaIndexEntitiesIndexer";
}
public String onTopLinkEssentials() {
return DefaultJpaIndexEntitiesIndexer.class.getName();
}
public String onEclipseLink() {
return DefaultJpaIndexEntitiesIndexer.class.getName();
}
public String onOpenJPA() {
return "org.compass.gps.device.jpa.indexer.OpenJPAJpaIndexEntitiesIndexer";
}
public String onUnknown() {
return DefaultJpaIndexEntitiesIndexer.class.getName();
}
});
try {
Class locatorClass = ClassUtils.forName(locatorClassName, settings.getClassLoader());
return (JpaIndexEntitiesIndexer) locatorClass.newInstance();
} catch (Exception e) {
throw new JpaGpsDeviceException("Failed to create entities indexer class [" + locatorClassName + "]", e);
}
}
}