[jax-rs-spec users] [jsr339-experts] Re: Intercepting after MBR reads the stream but before invoking ?

From: Santiago Pericas-Geertsen <>
Date: Wed, 9 Oct 2013 12:19:36 -0400

On Oct 8, 2013, at 7:46 AM, Sergey Beryozkin <> wrote:

> Hi
> Now and then we get the queries on how to get access not only to the target class/method (ResourceInfo helps there) but to the parameter instances, before the application code gets invoked, example for the monitoring purposes.
> ResourceInfo + UriInfo + accessing InputStream if any from the filters can offer the way to access all of the values representing individual target method parameters, but I wonder if we can offer something simpler/cooler,
> Any ideas ? what about introducing one extra stage, in addition to Pre and Post matching, PreInvoking where we'd have a provider like ResourceInfoFilter with the signature like this:
> ResourceInfo getResourceInfo();
> ResourceInfo will have a new method added too:
> List<Object> getMehodParameterValues();
> this will throw ISE unless invoked from ResourceInfoFilter ?

 If CDI is available, wouldn't a CDI interceptor work for this purpose?

-- Santiago