Question

I have some (static) Java methods.

I have a pointcut to fire on the execution of any of these methods:

pointcut calculation() : execution(* myMethod_*(..));

Now I want to measure the time of each execution seperately.
The problem is that executions may fire at any time, while other executions still run.
I thought about two advices, before() and after(), which identify the caller to manage timers for different callers.

before() : calculation() {

}

after() : calculation() {

}

How do I implement that?

Answer 1

around() advice should work:

   Object around() : calculation() {
        long start = System.nanoTime();
        Object result = proceed();
        long end = System.nanoTime();
        logger.info(String.format("%s took %d ns", thisJoinPointStaticPart.getSignature(),
                (end - start)));
        return result;
    }