/*
* 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.datanucleus.adapter;
import java.io.IOException;
import java.lang.instrument.IllegalClassFormatException;
import java.net.URL;
import java.security.ProtectionDomain;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.ClassTransformer;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceUnitInfo;
import javax.persistence.spi.ProviderUtil;
import org.osgi.framework.Bundle;
import org.osgi.framework.wiring.BundleWiring;
import osgi.jpa.managed.api.JPABridgePersistenceProvider;
@SuppressWarnings("rawtypes")
public class DatanucleusWrapper implements PersistenceProvider, JPABridgePersistenceProvider {
private PersistenceProvider pp;
public DatanucleusWrapper(PersistenceProvider pp) {
this.pp = pp;
}
@Override
public EntityManagerFactory createEntityManagerFactory(String emName, Map map) {
// TODO Auto-generated method stub
return null;
}
@Override
public int hashCode() {
return pp.hashCode();
}
@Override
public boolean equals(Object obj) {
return pp.equals(obj);
}
@Override
@SuppressWarnings("unchecked")
public EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
properties.put("datanucleus.jpa.addClassTransformer", "false");
properties.put("datanucleus.plugin.pluginRegistryClassName", "org.datanucleus.plugin.OSGiPluginRegistry");
info.addTransformer(new ClassTransformer() {
@Override
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined,
ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
// TODO Auto-generated method stub
return null;
}
});
return pp.createContainerEntityManagerFactory(info, properties);
}
@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();
}
@Override
public List<String> getWovenImports() {
return Arrays.asList();
}
@Override
public URL getRootUrl(Bundle b, String location) {
if (location.lastIndexOf('/') > 0) {
location = location.substring(0, location.lastIndexOf('/'));
}
return b.getResource(location);
}
@Override
public ClassLoader getClassLoader(Bundle persistentUnitBundle) {
ClassLoader cla = persistentUnitBundle.adapt(BundleWiring.class).getClassLoader();
final ClassLoader clb = getClass().getClassLoader();
return new ClassLoader(cla) {
@Override
protected Class<?> findClass(String className) throws ClassNotFoundException {
return clb.loadClass(className);
}
@Override
protected URL findResource(String resource) {
return clb.getResource(resource);
}
@Override
protected Enumeration<URL> findResources(String resource) throws IOException {
return clb.getResources(resource);
}
};
}
@Override
public String getPersistentProviderClassName() {
return pp.getClass().getName();
}
}