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https://issues.apache.org/jira/browse/ARIES-1867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16699121#comment-16699121
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Tom Quarendon commented on ARIES-1867:
--------------------------------------
[~csierra], Although I didn't create an SSE example in cxf, I did create a
simpler example not involving SSE where CXF was correctly invoking the filter.
With the same kind of example within the aries jaxrs whiteboard, the filter was
not invoked.
I've been looking around the jaxrs whiteboard code, but haven't been able to
understand any of it yet. I'm surprised that it's involved in any of this kind
of logic, I would have expected the binding of URIs to resource methods and
filters to be purely within the CXF code.
> ContainerResponseFilter not fired for SSE endpoint
> --------------------------------------------------
>
> Key: ARIES-1867
> URL: https://issues.apache.org/jira/browse/ARIES-1867
> Project: Aries
> Issue Type: Bug
> Components: jax-rs-whiteboard
> Affects Versions: jax-rs-whiteboard-1.0.2
> Reporter: Tom Quarendon
> Assignee: Carlos Sierra
> Priority: Blocker
> Attachments: CORSFilter.java, Server.java, TestService3.java
>
>
> I have a resource class such as the following:
> {code:java}
> @Path("events")
> @JaxrsResource
> public class EventsResource {
> private Sse sse;
> private SseBroadcaster eventBroadcaster;
> @Context
> public void setSse(Sse sse) {
> this.sse = sse;
> this.eventBroadcaster = sse.newBroadcaster();
> }
> @GET
> @Produces(MediaType.SERVER_SENT_EVENTS)
> public void suscribeToEvents(@Context SseEventSink eventSink) {
> eventBroadcaster.register(eventSink);
> }
> }
> {code}
>
>
> In addition, I have a CORS filter:
>
> {code:java}
> @Component(immediate=true)
> @Provider
> @JaxrsExtension
> public class CORSFilter implements ContainerResponseFilter {
> @Override
> public void filter(ContainerRequestContext requestContext,
> ContainerResponseContext responseContext) throws IOException {
> System.out.println("CORSFilter for
> "+requestContext.getUriInfo().getPath());
> MultivaluedMap<String, Object> headers = responseContext.getHeaders();
> headers.add("Access-Control-Allow-Origin",
> requestContext.getHeaderString("Origin"));
> ...
> {code}
>
> The CORS filter gets fired on all requests as I expect, _except_ for ones to
> the EventResource.subscribeToEvents method. Hence browsers complain when
> receiving SSE events.
> This used to work fine with jersey as the JAXRS implementation. CORS filter
> got called for the EventsResource.subscribeToEvents call.
> I've no idea whether this is a jaxrs-whiteboard level issue, or a CXF level
> issue. I will try and come up with a plain CXF test of the same thing for
> comparison.
>
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