Hi,
After listening to the discussion today, it occurs to me that discovery
(discoverability?) might be usefully described in terms of
notifications. This is because I think the same fundamental
architectural issues are at work when:
(1) A consumer wishes to subscribe to notifications on a given topic.
(2) A consumer wishes to discover the existence of resources for a
given type
(or, property list, or, attribute set, or, wsdl fragment)
If a ws-r were to emit a notification at instantiation time with a topic
of "discovery", a reference to wsdl, its known epr and publish within a
brokered framework, then it would be possible for a consumer to
subscribe to a"discovery" topic (maybe a subtopic of a ws-r type would
help here...). Subject, of course, to security and access rights, etc.
I am assuming that ws-n might support some mechanism for a consumer to
subcribe to a topic, like "discovery", and be able to obtain the past
(unique) events on topic. Such a list should ultimatedly provide the
discoverability consumer with a list of ws-r eprs, each as reported
during instantiation by the ws-r itself.
So, how might a structured "discovery" topic be worked into the ws-n scheme?
Comments?
Regards,
Mark
John DeCarlo wrote:
>
> D) Managed Resource Creation/Deletion Events. Manageability Consumer
> is there first. As each resource is made manageable, an event
> (containing the EPR in the payload) goes to the Consumer.
>
>
