Did you look at the client/server Filters in Jersey[1, 2]? I would say it is very similar to interceptors. You could implement your own filters, but Jersey already provides some useful filters such as Logging, GZIPContentEncoding, PostReplace(Server only), HTTPBasicAuthFilter (Client only, in 1.0.3 snapshot).
-Arul
[1]
https://jersey.dev.java.net/source/browse/*checkout*/jersey/tags/jersey-1.0.2/api/jersey/com/sun/jersey/api/client/filter/package-summary.html
[2]
https://jersey.dev.java.net/source/browse/*checkout*/jersey/tags/jersey-1.0.2/api/jersey/index.html
----- Original Message -----
From: Erdinc Yilmazel
[mailto:erdinc_at_yilmazel.com]
To: users_at_jersey.dev.java.net
Sent: Fri, 13 Mar
2009 21:17:14 -0600
Subject: [Jersey] Interceptors
> Hi everybody,
>
> I was wondering if adding interceptors for resource classes are
> possible Jersey. What I mean is a class that will be called before a
> method annotated with @GET or @POST etc. is called. For instance see
> the following code:
>
> class AuthenticationInterceptor implements JerseyInterceptor {
> public void intercept(@CookieParam cookies) {
> ... authentication logic
> if(!loggedIn) {
> throw new WebApplicationException(403);
> }
> }
> }
>
> And on the resource method:
>
> @GET
> @Intercept(AuthenticationInterceptor.class)
> public Response something() {
> ...
> }
>
> Well the actual API may be much different but I think you get the
> point. If the interceptor does not throw any exceptions the resource
> method gets called. Or may be interceptor chains can be implemented
> like a servlet filter like API.
>
> How can I hack jersey to add such functionality? Or is there already
> any similar feature in Jersey or JAX-RS?
>
> Thanks,
> Erdinc
>
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