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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