How set Akka supervisor for actors created by system.actorOf

Question

How can I set two different supervisor policies for two actors created using system context:

val exporter = system.actorOf(Props[DataExporter], name = "dataExporter")
val communicator = system.actorOf(Props[DeviceCommunicator], name = "deviceCommunicator")

And can I check the actor type during handling exception?

Answer 1

I don't think there's a way to define multiple supervising strategies inside of one actor. But you could create another layer with two actors that each implement a specific strategy and let them forward the messages to the respective worker actors.

val exporter = system.actorOf(Props[DataExporterSupervisor], ...)
val communicator = system.actorOf(Props[DeviceCommunicatorSupervisor], ...)


class DataExporterSupervisor extends Actor {

  val exporter = system.actorOf(Props[DataExporter], ...)

  override val supervisorStrategy = ???

  def receive = {
    case _ => exporter forward _
  }
}


class DeviceCommunicatorSupervisor extends Actor {

  val communicator = system.actorOf(Props[DeviceCommunicator], ...)

  override val supervisorStrategy = ???

  def receive = {
    case _ => communicator forward _
  }
}