[Hawkular-dev] Extra back-end for our front-end

[Thomas Heute]

Definitely, we need glue code that connects services together and offer 
a higher level REST API in particular for the console.

Thomas


On 08/12/2015 03:27 PM, Viliam Rockai wrote:
> Hey all,
>
> As we put more and more functionality into Hawkular, the more and more
> logic is put into the front-end itself, too. From my perspective, we're
> dealing with too much stuff that doesn't even belong to the front-end
> anyway. I believe we should create a new back-end module, which would
> connect all the existing modules with the front-end. This module may
> even be maintained by the front-end team, since it'll evolve and mutate
> very fast - to suit the UI needs. There are several use-cases which call
> for such module. For example to create all the alert entities needed for
> alerting you need to create a:
> * Trigger (per alerting "entity")
> * Dampening (one or more)
> * Condition (one or more)
>
> Each of those has its separate endpoint and creation of each may fail.
> So basically we should (we don't do that yet, we just assume everything
> went all right) even deal with transactions in the front-end right now.
>>From the UI perspective, this is just a single entity "Alert
> definition". Another question is - when should those objects be created?
> Once you add an URL - that's pretty easy (for URLS). But, in my opinion,
> for JVMs they should be created once the resource is discovered, not the
> 1st time the resource is accessed by UI. And the situation will be more
> complicated with new resources. Being able to get some predefined sets
> of metrics would be another nice feature. I.e., right now, we do 3
> requests (User, maximum, committed) to get the data for the "JVM Heap
> Usage" graph (and other graphs, too). Being able to process those data
> on a server and send it the the front-end in one bulk would be pretty
> neat.
>
> I believe adding a new module to the back-end, which role would be to
> connect the UI to the rest of Hawkular services would be beneficial for
> performance, testability and robustness of the whole app.
>
> WDYT?
>
> Viliam
>
> _______________________________________________
> hawkular-dev mailing list
> hawkular-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hawkular-dev
>