Akka-streams TCP - 使用不同的接收器

Question

How can I switch Sink connected by tcp.bind() to TCP Source? For example, lets say i have:

   Sink<ByteString, CompletionStage<Void>> tmpFileSink = FileIO
            .toPath(destination)
            .mapMaterializedValue(this::noticeCompletion);

    tcp
       .bind(host, port)
       .to(Sink.foreach(incomingConnection -> wire(incomingConnection, tmpFileSink)))
       .run(materializer);

For now, it saves incoming bytes to destination file. I would like to change, the destination file dynamically. How can I achieve that using akka-streams?

Answer 1

Have a look at PartitionHub documentation here . This allows you to dynamically switch the elements to different destinations.

In your question you didn't specify how exactly you need to make the decision about where each element should go. If the PartitionHub can't cut it you may need to go lower level and implement a custom processing stage. You can see how to do that here