On 14 Oct 2013, at 16:15, Bill Burke <bburke_at_redhat.com> wrote:
>
>
> On 10/10/2013 9:12 AM, Santiago Pericas-Geertsen wrote:
>>
>> On Oct 9, 2013, at 4:48 PM, Sergey Beryozkin <sberyozkin_at_talend.com> wrote:
>>
>>> Hi
>>> On 09/10/13 17:19, Santiago Pericas-Geertsen wrote:
>>>>
>>>> On Oct 8, 2013, at 7:46 AM, Sergey Beryozkin <sberyozkin_at_talend.com> 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?
>>>>
>>> I guess yes, Spring AOP will do too. Do you reckon it is completely out of JAX-RS scope, it seems we nearly have it, but may be you are right.
>>
>> Some people have already questioned the need for Entity Interceptors in JAX-RS, arguing that it is a cross-cutting concern better handled by other specs like CDI. This one seems like an even tougher sell IMO.
>>
>
> JAX-RS interception models were designed to help process HTTP requests on the client and server in both synchronous and asynchronous invocation styles, *not* as an alternative to CDI or Spring AOP.
+1.
Marek
>
> If anybody ever complains that we've overstepped our bounds, refer them to a blog I wrote over 2 years ago:
>
> http://bill.burkecentral.com/2011/05/24/interceptors-in-jax-rs-2-0/
>
> Also, please refer any public critique of our model to me so I can link my blog in their blog or forum comment sections.
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> --
> Bill Burke
> JBoss, a division of Red Hat
> http://bill.burkecentral.com