learning scala akka ask_pattern

package com.example

import  akka.actor._
import  akka.util.Timeout

object Tutorial_03_Ask_Pattern extends  App {
   val system = ActorSystem("DonutStoreActorySystem")

   val donutInfoActor = system.actorOf(Props[DonutInfoActor], name="DonutInfoActor")

   import DonutStoreProtocal._
   import akka.pattern._
   import scala.concurrent.ExecutionContext.Implicits.global
   import scala.concurrent.duration._

   implicit val timeout = Timeout( second)

   val vanillaDonutFound = donutInfoActor ? Info("vanilla")
   for {
      found <- vanillaDonutFound
   } yield (println(s"Vanilla donut found = $found"))

   val glazedDountFound = donutInfoActor ? Info("glazed")
   for {
      found <- glazedDountFound
   } yield  (println(s"Glazed donut found = $found"))

   Thread.sleep()

   system.terminate();

   object DonutStoreProtocal{
      case class Info(name: String)
   }

   class DonutInfoActor extends Actor with ActorLogging {
      import Tutorial_03_Ask_Pattern.DonutStoreProtocal._

     override def receive: Receive = {
        case Info(name) if name == "vanilla"  =>
         log.info(s"Found valid $name donut")
         sender ! true
        case Info(name) =>
         log.info(s"$name donut is not supported")
         sender ! false
     }
   }
}

result:

Vanilla donut found = true
[INFO] [// ::51.502] [DonutStoreActorySystem-akka.actor.default-dispatcher-] [akka://DonutStoreActorySystem/user/DonutInfoActor] Found valid vanilla donut
Glazed donut found = false
[INFO] [// ::51.512] [DonutStoreActorySystem-akka.actor.default-dispatcher-] [akka://DonutStoreActorySystem/user/DonutInfoActor] glazed donut is not supported