Thank you Konrad. I still need to get my head around "the stream way" of thinking.
Just if someone stumbled upon my post one day I went with file_source.to(Sink.actorRefWithAck(ModelMaster ,onInitMessage = Init ,ackMessage = Ack ,onCompleteMessage = Complete ,onFailureMessage = Status.Failure ) ).run() and my *ModelMaster* extends *ActorSubscriber*, and after receiving *Init* and receiving a message it replies to sender with *Ack*. For more details see *actorSubscriber *and *actorRefWithAck* in http://doc.akka.io/japi/akka/2.4/akka/stream/javadsl/Sink.html and examples in test cases https://github.com/akka/akka/blob/448c12d06a62e936c84d5267e221b54813037b9d/akka-stream-tests/src/test/scala/akka/stream/scaladsl/ActorRefBackpressureSinkSpec.scala -- Marcin On Monday, 2 January 2017 10:37:12 UTC+1, Konrad Malawski wrote: > > There is no "all at once here" it's processing line by line, pulling more > data as needed. > I don't see why you're worried about the all-at-once – that's exactly what > Akka Streams solve, it is bounded memory processing of that file. > Amount of data in memory will be chunk-size * number of buffers (between > async stages), and thus limited. > > -- > Konrad `ktoso` Malawski > Akka <http://akka.io> @ Lightbend <http://lightbend.com> > > On 2 January 2017 at 08:12:44, Marcin Pękalski ([email protected] > <javascript:>) wrote: > > > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
