public Object apply()

in omega/omega-transaction/src/main/java/org/apache/servicecomb/pack/omega/transaction/wrapper/SagaStartAnnotationProcessorTimeoutWrapper.java [43:99]
51 lines of code
11 McCabe index (conditional complexity)

  public Object apply(ProceedingJoinPoint joinPoint, SagaStart sagaStart, OmegaContext context)
      throws Throwable {
    final TimeoutProb timeoutProb = TimeoutProbManager.getInstance()
        .addTimeoutProb(sagaStart.timeout());
    Object output;
    try {
      Method method = ((MethodSignature) joinPoint.getSignature()).getMethod();
      sagaStartAnnotationProcessor.preIntercept(sagaStart.timeout());
      if (LOG.isDebugEnabled()) {
        LOG.debug("Initialized context {} before execution of method {}", context,
            method.toString());
      }
      try {
        output = joinPoint.proceed();
        if (timeoutProb.getInterruptFailureException() != null) {
          throw new OmegaException(timeoutProb.getInterruptFailureException());
        }
        if (sagaStart.autoClose()) {
          sagaStartAnnotationProcessor.postIntercept(context.globalTxId());
          if (LOG.isDebugEnabled()) {
            LOG.debug("Transaction with context {} has finished.", context);
          }
        } else {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Transaction with context {} is not finished in the SagaStarted annotated method.", context);
          }
        }
        return output;
      } catch (Throwable throwable) {
        // TODO We still need to intercept some exceptions that we can't judge the state of the child transaction.
        //  At this point, we don't need to send SagaAbortEvent, just need to throw a TransactionTimeoutException
        //  For example, java.net.SocketTimeoutException, etc.
        if (LOG.isDebugEnabled()) {
          LOG.debug("TimeoutWrapper exception {}", throwable.getClass().getName());
        }
        if (timeoutProb.getInterruptFailureException() != null) {
          LOG.info("TimeoutProb interrupt fail");
          throw timeoutProb.getInterruptFailureException();
        } else if (isThreadInterruptException(throwable)) {
          // We don't have to send an SagaAbortEvent
          // Because the SagaActor state automatically change to suspended when timeout.
          throw new TransactionTimeoutException("Timeout interrupt", throwable);
        } else {
          // We don't need to handle the OmegaException here
          if (!(throwable instanceof OmegaException)) {
            LOG.info("TimeoutWrapper Exception {}", throwable.getClass().getName());
            sagaStartAnnotationProcessor.onError(method.toString(), throwable);
            LOG.error("Transaction {} failed.", context.globalTxId());
          }
        }
        throw throwable;
      }
    } finally {
      context.clear();
      TimeoutProbManager.getInstance().removeTimeoutProb(timeoutProb);
    }
  }