Thank you very much , exactly what I was looking for
2015-05-14 15:56 GMT+03:00 Martynas Mickevičius
martynas.mickevic...@typesafe.com:
Hi Avi,
On Sun, May 10, 2015 at 9:43 AM, Avi 123...@gmail.com wrote:
Hi,
I want to implement I was looking at this example taken from typesafe
activator (spray-actor-per-request)
http://www.typesafe.com/activator/template/spray-actor-per-request
class RestRouting extends HttpService with Actor with PerRequestCreator {
implicit def actorRefFactory: ActorContext = context
def receive = runRoute(route)
val petService = context.actorOf(Props[PetClient])
val ownerService = context.actorOf(Props[OwnerClient])
val route = {
get {
path(pets) {
parameters('names) { names =
petsWithOwner {
GetPetsWithOwners(names.split(',').toList)
}
}
}
}
}
def petsWithOwner(message : RestMessage): Route =
ctx = perRequest(ctx, Props(new GetPetsWithOwnersActor(petService,
ownerService)), message)
}
and I wonder if this is the best parctice to implement the actors
creation :
ctx = perRequest(ctx, Props(new GetPetsWithOwnersActor(petService,
ownerService)), message)
because I saw at the akka documentation this warning
http://doc.akka.io/docs/akka/snapshot/scala/actors.html regarding
creating actor within an actor :
val props2 = Props(new ActorWithArgs(arg)) // careful, see below
The warning is here to remind users to be careful when constructing Props.
It is important that Props are serializable. When constructing Props
instances inside an actor one can easily close over the surrounding actor
instance. To avoid this, there is a recommended practice to create Props
factory methods inside the companion object that corresponds to your actor.
also if we define an actor within an actor
val ownerService = context.actorOf(Props[OwnerClient])
how can it be tested ?
To make this testable you would need to either OwnerClient ActorRef or
Props into the RestRouting class. You can find more information with
examples on testing parent-child relationships
http://doc.akka.io/docs/akka/2.3.11/scala/testing.html#Testing_parent-child_relationships
in the Akka documentation.
Just to make things clear - I am not criticizing, I am just trying to
learn the best practice of implementation specially as I see the typesafe
activator as educational source
Best wishes
Avi
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Martynas Mickevičius
Typesafe http://typesafe.com/ – Reactive
http://www.reactivemanifesto.org/ Apps on the JVM
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