Implementing @Around advice

To get pre and post processing of calling any function, its good to implement @Around advice.

Consider the following Aspect with around advice:

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.util.StopWatch;

@Aspect
public class ProfilingAspect {

    @Around("execution(* *(..))")
    public Object profile(ProceedingJoinPoint joinPoint) throws Throwable {
        StopWatch watch = new StopWatch();
        watch.start(joinPoint.getSignature().getName());
        try {
            return joinPoint.proceed(); //calling the target method
        }
        catch(Exception e) {
            throw e;
        }
        finally {
            watch.stop();
            System.out.println(watch.prettyPrint());
        }
    }
}

 

Corresponding config file:

<aop:aspectj-autoproxy />
    
    <bean id="profilingAspect" class="ex7.ProfilingAspect" />
<!--some service class -->    
    <bean id="customerService" class="service.CustomerServiceImpl" />