Akka：优先邮箱不适用于 Akka Typed

如何解决Akka：优先邮箱不适用于 Akka Typed

我正在尝试使用 akka 类型创建一个自定义优先级邮箱框，该框根据消息类型对消息进行优先级排序。以下是我创建演员并向其发送消息的代码。但是，消息的处理顺序是它们接收的顺序，而不是自定义邮箱定义的顺序。

package com.akka.prac

import akka.actor.typed.{ActorSystem,Behavior,dispatcherSelector,Props,Settings}
import akka.actor.typed.scaladsl.Behaviors
import akka.dispatch.{PriorityGenerator,UnboundedPriorityMailBox}
import com.typesafe.config.{Config,ConfigFactory}

object PriorityMailBoxTyped extends App {

  val config = ConfigFactory.load("applicationtyped.conf")
  val actorSystem = ActorSystem(
    MyPriorityActorTyped.receive,"PriorityMailBox",config,dispatcherSelector.fromConfig("prio-dispatcher")
  )

  actorSystem ! DoubleMessage(6.0)
  actorSystem ! IntMessage(1)
  actorSystem ! DoubleMessage(5.0)
  actorSystem ! IntMessage(3)
  actorSystem ! StringMessage("Hello")
  actorSystem ! IntMessage(5)
  actorSystem ! StringMessage("I am priority actor")
  actorSystem ! StringMessage(
    "I process string messages first,then integer,long and others"
  )

}

class MyPriorityActorMailBoxTyped(settings: Settings,config: Config)
    extends UnboundedPriorityMailBox(
      // Create a new PriorityGenerator,lower prio means more important
      PriorityGenerator {
        // Int Messages
        case x: IntMessage => 1
        // String Messages
        case x: StringMessage => 0
        // Long messages
        case x: LongMessage => 2
        // other messages
        case x: DoubleMessage => 3
        case _                => 4
      }
    )

trait MyMessage
case class IntMessage(x: Int) extends MyMessage
case class LongMessage(x: Long) extends MyMessage
case class StringMessage(x: String) extends MyMessage
case class DoubleMessage(x: Double) extends MyMessage

object MyPriorityActorTyped {

  def receive: Behavior[MyMessage] = Behaviors.receive { (context,message) =>
    message match {
      case IntMessage(x)    => println(x)
      case StringMessage(x) => println(x)
      case LongMessage(x)   => println(x)
      case DoubleMessage(x) => println(x)
      case _                => println()
    }
    Behaviors.same
  }
}

配置文件

prio-dispatcher {
    mailBox-type = "com.akka.prac.MyPriorityActorMailBoxTyped"
}

同样的例子适用于 Akka Classic。我在这里错过了什么？

谢谢。

解决方法

这似乎是一个 bug，现在已在 2.6.14 中修复。

Justed 对其进行了测试，它可以与 documentation 中的配置配合使用：

ActorSystem.create(Behaviors.setup(ctx -> someStaticBehavior(ctx)),"system",ConfigFactory.load("application.conf"),MailboxSelector.fromConfig("my-app.my-special-mailbox"));