/// <inheritdoc />
protected override IActorRef CreateConsumerActor()
{
var partitionsAssignedHandler = GetAsyncCallback <IEnumerable <TopicPartition> >(PartitionsAssigned);
var partitionsRevokedHandler = GetAsyncCallback <IEnumerable <TopicPartitionOffset> >(PartitionsRevoked);
IPartitionEventHandler internalHandler = new PartitionEventHandlers.AsyncCallbacks(partitionsAssignedHandler, partitionsRevokedHandler);
// If custom partition events handler specified - add it to the chain
var eventHandler = _subscription is IAutoSubscription autoSubscription && autoSubscription.PartitionEventsHandler.HasValue
? new PartitionEventHandlers.Chain(autoSubscription.PartitionEventsHandler.Value, internalHandler)
: internalHandler;
IStatisticsHandler statisticsHandler = _subscription.StatisticsHandler.HasValue
? _subscription.StatisticsHandler.Value
: new StatisticsHandlers.Empty();
// This allows to override partition events handling by subclasses
eventHandler = AddToPartitionAssignmentHandler(eventHandler);
if (!(Materializer is ActorMaterializer actorMaterializer))
{
throw new ArgumentException($"Expected {typeof(ActorMaterializer)} but got {Materializer.GetType()}");
}
var extendedActorSystem = actorMaterializer.System.AsInstanceOf <ExtendedActorSystem>();
var actor = extendedActorSystem.SystemActorOf(KafkaConsumerActorMetadata.GetProps(SourceActor.Ref, _settings, eventHandler, statisticsHandler),
$"kafka-consumer-{_actorNumber}");
return(actor);
}
/// <inheritdoc />
protected override IActorRef CreateConsumerActor()
{
var partitionsAssignedHandler = GetAsyncCallback <IEnumerable <TopicPartition> >(PartitionsAssigned);
var partitionsRevokedHandler = GetAsyncCallback <IEnumerable <TopicPartitionOffset> >(PartitionsRevoked);
IPartitionEventHandler <K, V> eventHandler = new AsyncCallbacksPartitionEventHandler <K, V>(partitionsAssignedHandler, partitionsRevokedHandler);
// This allows to override partition events handling by subclasses
eventHandler = AddToPartitionAssignmentHandler(eventHandler);
if (!(Materializer is ActorMaterializer actorMaterializer))
{
throw new ArgumentException($"Expected {typeof(ActorMaterializer)} but got {Materializer.GetType()}");
}
var extendedActorSystem = actorMaterializer.System.AsInstanceOf <ExtendedActorSystem>();
var actor = extendedActorSystem.SystemActorOf(KafkaConsumerActorMetadata.GetProps(SourceActor.Ref, _settings, eventHandler),
$"kafka-consumer-{_actorNumber}");
return(actor);
}