/**
* Return the specified PersistenceUnitInfo from this manager's cache of processed persistence
* units, keeping it in the cache (i.e. not 'obtaining' it for use but rather just accessing it
* for post-processing).
*
* <p>This can be used in {@link #postProcessPersistenceUnitInfo} implementations, detecting
* existing persistence units of the same name and potentially merging them.
*
* @param persistenceUnitName the name of the desired persistence unit
* @return the PersistenceUnitInfo in mutable form, or <code>null</code> if not available
*/
protected final MutablePersistenceUnitInfo getPersistenceUnitInfo(String persistenceUnitName) {
PersistenceUnitInfo pui = this.persistenceUnitInfos.get(persistenceUnitName);
if (pui != null && Proxy.isProxyClass(pui.getClass())) {
// JPA 2.0 PersistenceUnitInfo decorator with a SpringPersistenceUnitInfo as target
Jpa2PersistenceUnitInfoDecorator dec =
(Jpa2PersistenceUnitInfoDecorator) Proxy.getInvocationHandler(pui);
return dec.getTarget();
} else {
// Must be a raw JPA 1.0 SpringPersistenceUnitInfo instance
return (MutablePersistenceUnitInfo) pui;
}
}
@Override
@SuppressWarnings("unchecked")
public EntityManagerFactory createContainerEntityManagerFactory(
PersistenceUnitInfo info, Map properties) {
final Map settings = generateSettings(properties);
// OSGi ClassLoaders must implement BundleReference
settings.put(
org.hibernate.jpa.AvailableSettings.SCANNER,
new OsgiScanner(((BundleReference) info.getClassLoader()).getBundle()));
osgiClassLoader.addClassLoader(info.getClassLoader());
return Bootstrap.getEntityManagerFactoryBuilder(info, settings, osgiClassLoader).build();
}
/**
* Build a set that contains all the class names at a URL.
*
* @return a Set of class name strings
*/
public static Set<String> buildClassSet(PersistenceUnitInfo persistenceUnitInfo, Map properties) {
Set<String> set = new HashSet<String>();
set.addAll(persistenceUnitInfo.getManagedClassNames());
ClassLoader loader = persistenceUnitInfo.getClassLoader();
Iterator i = persistenceUnitInfo.getJarFileUrls().iterator();
while (i.hasNext()) {
set.addAll(getClassNamesFromURL((URL) i.next(), loader, properties));
}
if (!persistenceUnitInfo.excludeUnlistedClasses()) {
set.addAll(
getClassNamesFromURL(
persistenceUnitInfo.getPersistenceUnitRootUrl(), loader, properties));
}
// No longer need to add classes from XML, as temp class loader is only used for sessions.xml.
return set;
}
@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);
}
// Create an EMF through the path a container normally takes - calling
// createContainerEntityManagerFactory directly on the persistence impl.
@SuppressWarnings("unchecked")
protected OpenJPAEntityManagerFactorySPI createContainerEMF(
final String pu, final String persistenceFile, Map<String, Object> map) {
List<Class<?>> clist = null;
OpenJPAEntityManagerFactorySPI oemf = null;
Map<String, Object> config = new HashMap(System.getProperties());
if (map != null) {
config.putAll(map);
// Get the persistent class list
clist = (List<Class<?>>) map.remove(PERSISTENT_CLASS_LIST);
}
PersistenceProductDerivation.ConfigurationParser cfgParser =
new PersistenceProductDerivation.ConfigurationParser(config);
try {
URL url = getResourceURL(persistenceFile);
cfgParser.parse(url);
List<PersistenceUnitInfoImpl> units = cfgParser.getResults();
PersistenceUnitInfo puinf = null;
// Find the pu info that matches the pu name
for (PersistenceUnitInfo pui : units) {
if (pu.equals(pui.getPersistenceUnitName())) {
puinf = pui;
break;
}
}
// If there is a persistent class list, add each class to the puinfo
if (clist != null) {
for (Class<?> cl : clist) {
((PersistenceUnitInfoImpl) puinf).addManagedClassName(cl.getName());
}
}
oemf = createContainerEMF(pu, puinf, config);
} catch (IOException ioe) {
throw new RuntimeException("Failed to parse: " + getPersistenceResourceName(), ioe);
}
if (oemf == null) {
throw new NullPointerException(
"Expected an entity manager factory " + "for the persistence unit named: \"" + pu + "\"");
}
return oemf;
}
/**
* In case persistence unit is not uniquely defined by name this method is called to generate a
* unique name.
*/
public String createUniquePersistenceUnitName(PersistenceUnitInfo puInfo) {
return PersistenceUnitProcessor.buildPersistenceUnitName(
puInfo.getPersistenceUnitRootUrl(), puInfo.getPersistenceUnitName());
}
