Hi,
There is no such thing at the moment.
The onComplete on the sink does not guarantee that the whole stream has
actually stopped, it only guarantees that the Sink itself was stopped
(which may or may not imply completion of the whole stream; think of
graphs).
-Endre
On Fri, Mar 18, 2016 at 11:25 AM, <john.vie...@gmail.com> wrote:
> Hi,
> If a graph throws an Exception in any flow I want to restart the graph.
>
> Actually I would love to have something like Akka Actors
> OneForOneStrategy(10, Duration.create("1 minute")),,,,
>
> I couldn't find the right hints in the docs. What I am trying right now is
> this pseudo code:
>
> Function<Throwable, Supervision.Directive> decider = exc ->
> Supervision.stop();
> Sink sink = ....;
>
> RunnableGraph<Future<Integer>> runnableGraph = takeGraph.toMat(sink,
> Keep.right());
>
> ActorMaterializer mat =
> ActorMaterializer.create(ActorMaterializerSettings.create(system).withSupervisionStrategy(decider),
> system);
>
> runnableGraph.run(mat).onComplete(new OnComplete<Integer>() {
> public void onComplete(Throwable failure, Integer value) {
> ActorMaterializer mat2 =
> ActorMaterializer.create(ActorMaterializerSettings.create(system).withSupervisionStrategy(decider),
> system);
> runnableGraph.run(mat2);
> }
> }, system.dispatcher());
>
> Obviously the above code would only restart once...
> Anyway is this the right direction?
> Is there an idiomatic way to setup restart of an Runablegraph when a
> Exception happens
>
> Write now I am thinking of creating a Supervision Actor and use it to init
> and restart the Runablegraph
>
> Many Greetings
> John
>
>
>
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