I am having problems getting Source.conflateWithSeed to work with
ActorSink.actorRefWithAck in akka-typed
val conflateBufferSize = 100
val conflateFlow =
Flow[Option[Message]]
.filter(_.nonEmpty)
.map(_.get)
.buffer(100, OverflowStrategy.backpressure)
.conflateWithSeed(seed = msg => Seq(msg))(aggregate = (accum, msg) => {
val a = accum :+ msg
println("Agg size= "+a.size)
a
})
.log("Conflated", _.size + " messages, buffer size="+conflateBufferSize)
case class StreamMsg(sender: ActorRef[Protocol], msg: Seq[Message]) extends
Protocol
val replyTo:ActorRef[Protocol] = ...
val actorSink = ActorSink.actorRefWithAck(
ref = replyTo,
onInitMessage = StreamInit,
messageAdapter = StreamMsg,
ackMessage = Ack,
onCompleteMessage = StreamComplete,
onFailureMessage = StreamFail
)
Then i pipe conflated source messages to the actor
messageSource
.via(conflateFlow)
.toMat(actorSink)(Keep.right)
.run()
No matter how much I slow down my actor sink ref object,
I keep getting only a single message in StreamMsg(_, msg = Seq(Message(_)) and
never the accumulated sequence in conflate
I can't get it to pass conflated buffer to the actor sink in the StreamMsg
Am I wiring component incorrectly? Any advice is greatly appreciated. Thank you
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