Thanks, Thiago.. I switched to use the "Advisor" solution instead of creating
my own decorator...
Here's what I have so far:
@Advise
@TimeIt
public static void adviseTimer(MethodAdviceReceiver receiver, Logger log) {
MethodAdvice advice = invocation -> {
long start = System.currentTimeMillis();
invocation.proceed();
long end = System.currentTimeMillis();
log.info(receiver.getInterface().getName() + "::" +
invocation.getMethod().getName() + " took: " +
(end - start) + " " + "[ms]");
};
for(Method m: receiver.getInterface().getMethods()) {
if(m.isAnnotationPresent(TimeIt.class)){
receiver.adviseMethod(m, advice);
}
}
}
1. I put the @Marker(TimeIt.class) on the service implementation and
2. I put @TimeIt on the method I am interested in logging on the service
interface
Is this the best possible solution?
In particular, I have two concerns:
a. Does the @Marker(TimeIt.class) have to go on the service implementation? Can
it not be applied to the service's method directly?
b. @TimeIt does not get picked up on the method *definition* in the service's
implementation. It must be on the service *interface* to work. This makes the
current solution cumbersome because I need to add annotation to both interface
and implementation and I cannot control which implementation of the interface
the TimeIt is applied to
Can you please suggest a better solution?
Thanks again
-----Original Message-----
From: Thiago H. de Paula Figueiredo [mailto:thiag...@gmail.com]
Sent: Monday, September 03, 2018 3:37 PM
To: Tapestry users
Subject: Re: Tapestry decorator with marker
On Sun, Sep 2, 2018 at 9:56 PM Labhesh Ramchandani <
labhesh.ramchand...@aqr.com> wrote:
> Hi,
>
Hello!
> @Decorate
> @TimeIt
> public static <T> T decorateTimer(Class<T> serviceInterface, T delegate,
> String serviceId, Logger logger,
> TimerDecorator decorator) {
> return decorator.build(serviceInterface, delegate, serviceId, logger);
> }
>
> Is there a way to annotate just the specific method? I don't want to time
> all methods...just the ones that have the marker on them?
> In the example above; I'd like to decorate (and time) just method A and
> not B; how can I do that? Also how do I get the methodReciever to log the
> name of the specific methodA being timed?
>
Yes. Instead of using methodAdviceReceiver.adviseAllMethods(advice), you
can specify which methods you want to advise by using adviseMethod(Method
method, MethodAdvice advice) instead. Of course, the logic to define which
methods to advise is up to you.
--
Thiago
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