public static CoreSession wrap(CoreSession session) {
try {
TransactionHelper.lookupTransactionManager();
} catch (NamingException e) {
// no transactions, do not wrap
return session;
}
ClassLoader cl = session.getClass().getClassLoader();
return (CoreSession)
Proxy.newProxyInstance(cl, INTERFACES, new TransactionalCoreSessionWrapper(session));
}
@Override
public void afterCompletion(int status) {
Transaction current = null;
try {
current = TransactionHelper.lookupTransactionManager().getTransaction();
} catch (Exception e) {
throw new Error("no tx", e);
}
Transaction main = threadBound.get();
if (main.equals(current)) {
threadBound.remove();
}
boolean committed;
if (status == Status.STATUS_COMMITTED) {
committed = true;
} else if (status == Status.STATUS_ROLLEDBACK) {
committed = false;
} else {
log.error("Unexpected status after completion: " + status);
return;
}
session.afterCompletion(committed);
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Transaction main = threadBound.get();
if (main == null) {
// first call in thread
try {
main = TransactionHelper.lookupTransactionManager().getTransaction();
if (main != null) {
if (main.getStatus() != Status.STATUS_MARKED_ROLLBACK) {
main.registerSynchronization(this);
session.afterBegin();
threadBound.set(main);
}
}
} catch (NamingException e) {
// no transaction manager, ignore
} catch (Exception e) {
log.error("Error on transaction synchronizer registration", e);
}
checkTxActiveRequired(method);
}
try {
return method.invoke(session, args);
} catch (Throwable t) {
if (TransactionHelper.isTransactionActive() && needsRollback(method, t)) {
TransactionHelper.setTransactionRollbackOnly();
}
if (t instanceof InvocationTargetException) {
Throwable tt = ((InvocationTargetException) t).getTargetException();
if (tt != null) {
throw tt;
}
}
throw t;
}
}
