Global Exception Handling via Spring Advice In a MQ based Spring Boot Application

Question

I've a MQ Spring Boot PaaS application where I need to implement exception handling via a common exception handler class (GlobalExceptionHandler). My PaaS application receives message from a source queue, perform some database operations via spring jpa and write the response back to a destination queue.

I need to handle all the database RuntimeException, custom business exceptions and other checked exceptions via GlobalExceptionHandler class.

My GlobalExceptionHandler will have handlers (method) defined for every exception. In my handler, I will be logging the exception first and then I will be creating a [error code, desc] and then I need to return it back to main flow.

I do not have any controller in my application. So I think, I can't use @ControllerAdvice. Currently I'm using spring AOP @AfterThrowing as below but I'm not able to return the [code, desc] from handlers.

@AfterThrowing(pointcut = "execution(* com.abc.xyz.service..*(..)) ", 
throwing = "dataNotFoundException")
    public void handleDataNotFoundException(DataNotFoundException dataNotFoundException) {
       LOGGER.info("Info : " + dataNotFoundException.getMessage());
       // code, desc need to create here and send it back to calling place.
       // I need to change the return type here from void.
    }

Can anyone please guide me in implementing exception handling here.

kriegaex · Accepted Answer · 2018-03-20 11:08:46Z

0

As I explained here, @AfterThrowing cannot modify return values or otherwise change the execution flow of your epplication. You cannot even catch the exception there. You need to use an @Around advice instead.

I suggest you read some documentation first and then ask more follow-up questions.

answered Mar 20, 2018 at 11:08

kriegaex

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