0
私はAkkaなしのActorを実装する私の小さな研究を行っています ScalaでActorの実装が1つ見つかりました。 （How to implement actor model without Akka?）ScalaでAkkaのないActorモデルを実装する
非常に簡単です。コメントを追加するには十分な評判がないので、この質問を作成します。 私は以下のようにActorを使用しているのだろうかと思います。
1 /メインスレッドからそのアクタをシャットダウンするにはどうすればよいですか？
2 /どのように親アクターのようにAkkaに類似した機能を追加して、リクエストを強制終了してメソッドにすることができますか？
import scala.concurrent._
trait Actor[T] {
implicit val context = ExecutionContext.fromExecutor(java.util.concurrent.Executors.newFixedThreadPool(1))
def receive: T => Unit
def !(m: T) = Future { receive(m) }
}
これは
import scala.concurrent._
/**
* Created by hminle on 10/21/2016.
*/
trait Message
case class HelloMessage(hello: String) extends Message
case class GoodByeMessage(goodBye: String) extends Message
object State extends Enumeration {
type State = Value
val Waiting, Running, Terminating = Value
}
trait Actor[T] {
implicit val context = ExecutionContext.fromExecutor(java.util.concurrent.Executors.newFixedThreadPool(1))
private var state: State.State = State.Waiting
def handleMessage: T => Unit ={
if(state == State.Waiting) handleMessageWhenWaiting
else if(state == State.Running) handleMessageWhenRunning
else handleMessageWhenTerminating
}
def !(m: T) = Future {handleMessage(m)}
def handleMessageWhenWaiting: T => Unit
def handleMessageWhenRunning: T => Unit
def handleMessageWhenTerminating: T => Unit
def transitionTo(destinationState: State.State): Unit = {
this.state = destinationState
}
}
class Component1 extends Actor[Message]{
def handleMessageWhenRunning = {
case HelloMessage(hello) => {
println(Thread.currentThread().getName + hello)
}
case GoodByeMessage(goodBye) => {
println(Thread.currentThread().getName + goodBye)
transitionTo(State.Terminating)
}
}
def handleMessageWhenWaiting = {
case m => {
println(Thread.currentThread().getName + " I am waiting, I am not ready to run")
transitionTo(State.Running)
}
}
def handleMessageWhenTerminating = {
case m => {
println(Thread.currentThread().getName + " I am terminating, I cannot handle any message")
//need to shutdown here
}
}
}
class Component2(component1: Actor[Message]) extends Actor[Message]{
def handleMessageWhenRunning = {
case HelloMessage(hello) => {
println(Thread.currentThread().getName + hello)
component1 ! HelloMessage("hello 1")
}
case GoodByeMessage(goodBye) => {
println(Thread.currentThread().getName + goodBye)
component1 ! GoodByeMessage("goodbye 1")
transitionTo(State.Terminating)
}
}
def handleMessageWhenWaiting = {
case m => {
println(Thread.currentThread().getName + " I am waiting, I am not ready to run")
transitionTo(State.Running)
}
}
def handleMessageWhenTerminating = {
case m => {
println(Thread.currentThread().getName + " I am terminating, I cannot handle any message")
//need to shutdown here
}
}
}
object ActorExample extends App {
val a = new Component1
val b = new Component2(a)
b ! HelloMessage("hello World 2")
b ! HelloMessage("hello World 2, 2nd")
b ! GoodByeMessage("Good bye 2")
println(Thread.currentThread().getName)
}