Get annotated parameters inside a pointcut

Question

I have two annotation @LookAtThisMethod and @LookAtThisParameter, if I have a pointcut around the methods with @LookAtThisMethod how c

Answer 1

final String methodName = joinPoint.getSignature().getName();
    final MethodSignature methodSignature = (MethodSignature) joinPoint
            .getSignature();
    Method method = methodSignature.getMethod();
    GuiAudit annotation = null;
    if (method.getDeclaringClass().isInterface()) {
        method = joinPoint.getTarget().getClass()
                .getDeclaredMethod(methodName, method.getParameterTypes());
        annotation = method.getAnnotation(GuiAudit.class);
    }

This code covers the case where the Method belongs to the interface

Answer 2

I modeled my solution around this other answer to a different but similar question.

MethodSignature signature = (MethodSignature) joinPoint.getSignature();
String methodName = signature.getMethod().getName();
Class<?>[] parameterTypes = signature.getMethod().getParameterTypes();
Annotation[][] annotations = joinPoint.getTarget().getClass().getMethod(methodName,parameterTypes).getParameterAnnotations();

The reason that I had to go through the target class was because the class that was annotated was an implementation of an interface and thusly signature.getMethod().getParameterAnnotations() returned null.