com.ibm.wsspi.uow.UOWActionException Java Examples

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Example #1
Source File: WebSphereUowTransactionManager.java    From spring-analysis-note with MIT License 4 votes vote down vote up 
@Override
@Nullable
public <T> T execute(@Nullable TransactionDefinition definition, TransactionCallback<T> callback)
		throws TransactionException {

	// Use defaults if no transaction definition given.
	TransactionDefinition def = (definition != null ? definition : TransactionDefinition.withDefaults());

	if (def.getTimeout() < TransactionDefinition.TIMEOUT_DEFAULT) {
		throw new InvalidTimeoutException("Invalid transaction timeout", def.getTimeout());
	}

	UOWManager uowManager = obtainUOWManager();
	int pb = def.getPropagationBehavior();
	boolean existingTx = (uowManager.getUOWStatus() != UOWSynchronizationRegistry.UOW_STATUS_NONE &&
			uowManager.getUOWType() != UOWSynchronizationRegistry.UOW_TYPE_LOCAL_TRANSACTION);

	int uowType = UOWSynchronizationRegistry.UOW_TYPE_GLOBAL_TRANSACTION;
	boolean joinTx = false;
	boolean newSynch = false;

	if (existingTx) {
		if (pb == TransactionDefinition.PROPAGATION_NEVER) {
			throw new IllegalTransactionStateException(
					"Transaction propagation 'never' but existing transaction found");
		}
		if (pb == TransactionDefinition.PROPAGATION_NESTED) {
			throw new NestedTransactionNotSupportedException(
					"Transaction propagation 'nested' not supported for WebSphere UOW transactions");
		}
		if (pb == TransactionDefinition.PROPAGATION_SUPPORTS ||
				pb == TransactionDefinition.PROPAGATION_REQUIRED ||
				pb == TransactionDefinition.PROPAGATION_MANDATORY) {
			joinTx = true;
			newSynch = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
		}
		else if (pb == TransactionDefinition.PROPAGATION_NOT_SUPPORTED) {
			uowType = UOWSynchronizationRegistry.UOW_TYPE_LOCAL_TRANSACTION;
			newSynch = (getTransactionSynchronization() == SYNCHRONIZATION_ALWAYS);
		}
		else {
			newSynch = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
		}
	}
	else {
		if (pb == TransactionDefinition.PROPAGATION_MANDATORY) {
			throw new IllegalTransactionStateException(
					"Transaction propagation 'mandatory' but no existing transaction found");
		}
		if (pb == TransactionDefinition.PROPAGATION_SUPPORTS ||
				pb == TransactionDefinition.PROPAGATION_NOT_SUPPORTED ||
				pb == TransactionDefinition.PROPAGATION_NEVER) {
			uowType = UOWSynchronizationRegistry.UOW_TYPE_LOCAL_TRANSACTION;
			newSynch = (getTransactionSynchronization() == SYNCHRONIZATION_ALWAYS);
		}
		else {
			newSynch = (getTransactionSynchronization() != SYNCHRONIZATION_NEVER);
		}
	}

	boolean debug = logger.isDebugEnabled();
	if (debug) {
		logger.debug("Creating new transaction with name [" + def.getName() + "]: " + def);
	}
	SuspendedResourcesHolder suspendedResources = (!joinTx ? suspend(null) : null);
	UOWActionAdapter<T> action = null;
	try {
		if (def.getTimeout() > TransactionDefinition.TIMEOUT_DEFAULT) {
			uowManager.setUOWTimeout(uowType, def.getTimeout());
		}
		if (debug) {
			logger.debug("Invoking WebSphere UOW action: type=" + uowType + ", join=" + joinTx);
		}
		action = new UOWActionAdapter<>(
				def, callback, (uowType == UOWManager.UOW_TYPE_GLOBAL_TRANSACTION), !joinTx, newSynch, debug);
		uowManager.runUnderUOW(uowType, joinTx, action);
		if (debug) {
			logger.debug("Returned from WebSphere UOW action: type=" + uowType + ", join=" + joinTx);
		}
		return action.getResult();
	}
	catch (UOWException | UOWActionException ex) {
		TransactionSystemException tse =
				new TransactionSystemException("UOWManager transaction processing failed", ex);
		Throwable appEx = action.getException();
		if (appEx != null) {
			logger.error("Application exception overridden by rollback exception", appEx);
			tse.initApplicationException(appEx);
		}
		throw tse;
	}
	finally {
		if (suspendedResources != null) {
			resume(null, suspendedResources);
		}
	}
}