Aspect

Annotation

package null-pointer.logger.annotation

@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface MyLogger {
}

Aspect

package null-pointer.logger.aspect

@Aspect
public class MyLoggerAspect {
    @Around("@annotation(null-pointer.logger.annotation.MyLogger)")
    public Object invoke(ProceedingJoinPoint methodInvocation) throws Throwable {
        MethodSignature signature = (MethodSignature) methodInvocation.getSignature();
        String className = signature.getDeclaringTypeName();
        String methodName = signature.getName();

        logEvent(className, methodName, linkId, signature.getParameterNames(), "eventDirection=Request",
            methodInvocation.getArgs());

        try {
            Object returnValue = methodInvocation.proceed();
            if (returnValue != null) {
                logEvent(className, methodName, linkId, NO_PARAMS, "eventDirection=Response", returnValue);
            }
            return returnValue;
        } catch (Exception e) {
            logEvent(className, methodName, linkId, NO_PARAMS, e.getMessage());
            throw e;
        }
    }

}