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

This example Akka source code file (MultiNodeSample.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

a, actor, akka, implicitsender, multinodeconfig, multinodesample, multinodesampleconfig, multinodesamplespecmultijvmnode1, multinodespec, ponger, stmultinodespec, test, testing, testkit

The MultiNodeSample.scala Akka example source code

//#package
package sample.multinode
//#package

//#config
import akka.remote.testkit.MultiNodeConfig

object MultiNodeSampleConfig extends MultiNodeConfig {
  val node1 = role("node1")
  val node2 = role("node2")
}
//#config

//#spec
import akka.remote.testkit.MultiNodeSpec
import akka.testkit.ImplicitSender
import akka.actor.{ Props, Actor }

class MultiNodeSampleSpecMultiJvmNode1 extends MultiNodeSample
class MultiNodeSampleSpecMultiJvmNode2 extends MultiNodeSample

object MultiNodeSample {
  class Ponger extends Actor {
    def receive = {
      case "ping" => sender() ! "pong"
    }
  }
}

class MultiNodeSample extends MultiNodeSpec(MultiNodeSampleConfig)
  with STMultiNodeSpec with ImplicitSender {

  import MultiNodeSampleConfig._
  import MultiNodeSample._

  def initialParticipants = roles.size

  "A MultiNodeSample" must {

    "wait for all nodes to enter a barrier" in {
      enterBarrier("startup")
    }

    "send to and receive from a remote node" in {
      runOn(node1) {
        enterBarrier("deployed")
        val ponger = system.actorSelection(node(node2) / "user" / "ponger")
        ponger ! "ping"
        expectMsg("pong")
      }

      runOn(node2) {
        system.actorOf(Props[Ponger], "ponger")
        enterBarrier("deployed")
      }

      enterBarrier("finished")
    }
  }
}
//#spec