/
HelloWorld.scala
45 lines (37 loc) · 1.01 KB
/
HelloWorld.scala
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/**
* Copyright (C) 2017 Roland Kuhn <http://rolandkuhn.com>
*/
package com.rolandkuhn.process_demo
import akka.typed._
import akka.typed.ScalaProcess._
object HelloWorld extends App {
case class WhatIsYourName(replyTo: ActorRef[String])
val sayHello =
OpDSL.loopInf[WhatIsYourName] { implicit opDSL =>
for {
request <- opRead
} request.replyTo ! "Hello"
}
val theWorld =
OpDSL.loopInf[WhatIsYourName] { implicit opDSL =>
for {
WhatIsYourName(replyTo) <- opRead
} replyTo ! "World"
}
val main =
OpDSL[String] { implicit opDSL =>
for {
self <- opProcessSelf
hello <- opFork(sayHello.named("hello"))
_ = hello.ref ! WhatIsYourName(self)
greeting <- opRead
world <- opSpawn(theWorld.named("world"))
_ = world ! MainCmd(WhatIsYourName(self))
name <- opRead
} yield {
println(s"$greeting $name!")
hello.cancel()
}
}
ActorSystem("process-demo", main.toBehavior)
}