public class MyActorSame : UntypedActor
    {        
        protected override void OnReceive(object message)
        {
            if(message is string)
            {
                if (message as string == "createChild")
                {
                    Context.ActorOf<MyActor>("myChild");
                    Sender.Tell("Create Child Succed:myChild");
                }
                else
                {
                    Sender.Tell("RE:" + message);
                }
            }
            else if(message is SomeMessage)
            {
                Sender.Tell("RE:" + (message as SomeMessage).message );
            }
        }
    }

	//foo 라고하면 행복해졌다가, bar라고하면 화나는 ACTOR , 동일한 상태에서는 상태변경없이 메시지전송
    public class HotSwapActor : UntypedActor
    {
		//기본탑재 로그,이제부터는 시간,스레드,액터정보등이 표시된 console.writeline대신 AKKA LOG를 사용하겠습니다.  using Akka.Event
        private ILoggingAdapter log = Context.GetLogger();          
        protected override void OnReceive(object message)
        {
            log.Info("NORMAL:"+message.ToString());
            switch (message as string)
            {
                case "foo":                    
                    log.Info("행복해짐");
                    Become(Happy);
                    break;
                case "bar":
                    log.Info("화남");
                    Become(Angry);
                    break;
            }
        }

        private void Angry(object message)
        {
            log.Info("Angry:" + message.ToString());
            switch (message as string)
            {
                case "foo":
                    log.Info("행복해짐");
                    Become(Happy);
                    break;
                case "bar":                    
                    log.Info("이미 화가났다.");
                    Sender.Tell("이미 화가났다.");
                    break;
            }
        }

        private void Happy(object message)
        {
            log.Info("Happy:" + message.ToString());
            switch (message as string)
            {
                case "foo":
                    log.Info("이미 행복하다.");
                    Sender.Tell("이미 행복하다.");
                    break;
                case "bar":
                    log.Info("화남");
                    Become(Angry);
                    break;
            }
        }
    }

        protected void SomeTest3() //BecomeTest
        {
            IActorRef myActor = actorSystem.ActorOf<HotSwapActor>("myactor");            
            myActor.Tell("bar");
            myActor.Tell("foo");
            myActor.Tell("bar");
            myActor.Tell("foo");
            myActor.Tell("bar");
            myActor.Tell("bar");
            myActor.Tell("foo");
        }