Akka/Scala example source code file (RoutedActorRef.scala)

This example Akka source code file (RoutedActorRef.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

actor, actorpath, actorsystemimpl, akka, cell, concurrent, configurationexception, dispatch, internalactorref, mailboxtype, norouter, pool, props, repointableactorref, resizablepoolcell, routedactorref, routing, time

The RoutedActorRef.scala Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */
package akka.routing

import scala.concurrent.duration._
import akka.ConfigurationException
import akka.actor.ActorPath
import akka.actor.ActorSystemImpl
import akka.actor.Cell
import akka.actor.InternalActorRef
import akka.actor.Props
import akka.actor.RepointableActorRef
import akka.actor.UnstartedCell
import akka.dispatch.BalancingDispatcher
import akka.dispatch.MailboxType
import akka.dispatch.MessageDispatcher

/**
 * INTERNAL API
 *
 * A RoutedActorRef is an ActorRef that has a set of connected ActorRef and it uses a Router to
 * send a message to one (or more) of these actors.
 */
private[akka] class RoutedActorRef(
  _system: ActorSystemImpl,
  _routerProps: Props,
  _routerDispatcher: MessageDispatcher,
  _routerMailbox: MailboxType,
  _routeeProps: Props,
  _supervisor: InternalActorRef,
  _path: ActorPath)
  extends RepointableActorRef(_system, _routerProps, _routerDispatcher, _routerMailbox, _supervisor, _path) {

  // verify that a BalancingDispatcher is not used with a Router
  if (_routerProps.routerConfig != NoRouter && _routerDispatcher.isInstanceOf[BalancingDispatcher]) {
    throw new ConfigurationException(
      "Configuration for " + this +
        " is invalid - you can not use a 'BalancingDispatcher' as a Router's dispatcher, you can however use it for the routees.")
  } else _routerProps.routerConfig.verifyConfig(_path)

  override def newCell(old: UnstartedCell): Cell = {
    val cell = props.routerConfig match {
      case pool: Pool if pool.resizer.isDefined ⇒
        new ResizablePoolCell(system, this, props, dispatcher, _routeeProps, supervisor, pool)
      case _ ⇒
        new RoutedActorCell(system, this, props, dispatcher, _routeeProps, supervisor)
    }
    cell.init(sendSupervise = false, mailboxType)
  }

}