/**
* Loads the persistence provider adapter
*
* @param persistenceProvider classloader will be used to load the persistence provider adapter
* @return the persistence provider adaptor for the provider class
*/
public static PersistenceProviderAdaptor loadPersistenceAdapter(
PersistenceProvider persistenceProvider) {
PersistenceProviderAdaptor persistenceProviderAdaptor = null;
final ServiceLoader<PersistenceProviderAdaptor> serviceLoader =
ServiceLoader.load(
PersistenceProviderAdaptor.class, persistenceProvider.getClass().getClassLoader());
if (serviceLoader != null) {
for (PersistenceProviderAdaptor adaptor : serviceLoader) {
if (persistenceProviderAdaptor != null) {
throw MESSAGES.classloaderHasMultipleAdapters(
persistenceProvider.getClass().getClassLoader().toString());
}
persistenceProviderAdaptor = adaptor;
JPA_LOGGER.debugf(
"loaded persistence provider adapter %s from classloader %s",
persistenceProviderAdaptor.getClass().getName(),
persistenceProvider.getClass().getClassLoader().toString());
}
if (persistenceProviderAdaptor != null) {
persistenceProviderAdaptor.injectJtaManager(JtaManagerImpl.getInstance());
}
}
return persistenceProviderAdaptor == null ? noopAdaptor : persistenceProviderAdaptor;
}
@Override
public String getPersistentProviderClassName() {
return pp.getClass().getName();
}