/*
* Copyright (c) OSGi Alliance (2013). All Rights Reserved.
*
* 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 osgi.jpa.managed.hibernate.adapter;
import java.net.URL;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceUnitInfo;
import javax.persistence.spi.ProviderUtil;
import javax.transaction.TransactionManager;
import org.hibernate.jpa.HibernatePersistenceProvider;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import osgi.jpa.managed.api.JPABridgePersistenceProvider;
import aQute.bnd.annotation.component.Activate;
import aQute.bnd.annotation.component.Component;
import aQute.bnd.annotation.component.Reference;
/**
* Create the persistence provider for hibernate and delegate all the messages
* to it. SPEC:
*/
@Component(provide = PersistenceProvider.class, properties = "service.vendor=Hibernate")
@SuppressWarnings("rawtypes")
public class HibernateBridge implements PersistenceProvider, JPABridgePersistenceProvider {
private HibernatePersistenceProvider pp;
private TransactionManager tm;
@Activate
public void activate(BundleContext context) {
pp = new org.hibernate.jpa.HibernatePersistenceProvider();
JtaPlatformProviderImpl.transactionManager = tm;
}
@Override
public int hashCode() {
return pp.hashCode();
}
@Override
public EntityManagerFactory createEntityManagerFactory(String persistenceUnitName, Map properties) {
ClassLoader previous = Thread.currentThread().getContextClassLoader();
try {
Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
return pp.createEntityManagerFactory(persistenceUnitName, properties);
} finally {
Thread.currentThread().setContextClassLoader(previous);
}
}
@Override
public boolean equals(Object obj) {
return pp.equals(obj);
}
@Override
@SuppressWarnings("unchecked")
public EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
ClassLoader previous = Thread.currentThread().getContextClassLoader();
try {
//
// This is necessary to ensure the imports?
//
info.addTransformer(null);
Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
properties.put("hibernate.jdbc.use_get_generated_keys", "true");
properties.put("hibernate.hbm2ddl.auto", "create");
final EntityManagerFactory emf = pp.createContainerEntityManagerFactory(info, properties);
return new DelegatedEntityManagerFactory(emf) {
};
} finally {
Thread.currentThread().setContextClassLoader(previous);
}
}
@Override
public void generateSchema(PersistenceUnitInfo info, Map map) {
pp.generateSchema(info, map);
}
@Override
public boolean generateSchema(String persistenceUnitName, Map map) {
return pp.generateSchema(persistenceUnitName, map);
}
@Override
public ProviderUtil getProviderUtil() {
return pp.getProviderUtil();
}
@Override
public String toString() {
return pp.toString();
}
/**
* Return the imports for this provider needed on a proxy
*/
@Override
public List<String> getWovenImports() {
return Arrays.asList("*");
}
/**
* Hibernate could seemingly live with a null URL ... and it crashed on an
* OSGi URL ...
*/
@Override
public URL getRootUrl(Bundle b, String location) {
return null;
}
@Reference
void setTM(TransactionManager tm) {
this.tm = tm;
}
@Override
public ClassLoader getClassLoader(Bundle b) {
return null;
}
@Override
public String getPersistentProviderClassName() {
return null;
}
}