public static ArchiveFactory getArchiveFactory(ClassLoader loader) {
if (ARCHIVE_FACTORY != null) {
return ARCHIVE_FACTORY;
}
ArchiveFactory factory = null;
String factoryClassName = System.getProperty(SystemProperties.ARCHIVE_FACTORY, null);
if (factoryClassName == null) {
return new ArchiveFactoryImpl();
} else {
try {
if (loader != null) {
Class archiveClass = loader.loadClass(factoryClassName);
if (PrivilegedAccessHelper.shouldUsePrivilegedAccess()) {
try {
factory =
(ArchiveFactory)
AccessController.doPrivileged(
new PrivilegedNewInstanceFromClass(archiveClass));
} catch (PrivilegedActionException exception) {
throw PersistenceUnitLoadingException.exceptionCreatingArchiveFactory(
factoryClassName, exception);
}
} else {
factory = (ArchiveFactory) PrivilegedAccessHelper.newInstanceFromClass(archiveClass);
}
}
} catch (ClassNotFoundException cnfe) {
throw PersistenceUnitLoadingException.exceptionCreatingArchiveFactory(
factoryClassName, cnfe);
} catch (IllegalAccessException iae) {
throw PersistenceUnitLoadingException.exceptionCreatingArchiveFactory(
factoryClassName, iae);
} catch (InstantiationException ie) {
throw PersistenceUnitLoadingException.exceptionCreatingArchiveFactory(factoryClassName, ie);
}
}
return factory;
}
