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

This example Akka source code file (SimpleClusterApp.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, actorsystem, akka, array, cluster, clustersystem, seq, simpleclusterapp, unit

The SimpleClusterApp.scala Akka example source code

package sample.cluster.simple

import com.typesafe.config.ConfigFactory
import akka.actor.ActorSystem
import akka.actor.Props

object SimpleClusterApp {
  def main(args: Array[String]): Unit = {
    if (args.isEmpty)
      startup(Seq("2551", "2552", "0"))
    else
      startup(args)
  }

  def startup(ports: Seq[String]): Unit = {
    ports foreach { port =>
      // Override the configuration of the port
      val config = ConfigFactory.parseString("akka.remote.netty.tcp.port=" + port).
        withFallback(ConfigFactory.load())

      // Create an Akka system
      val system = ActorSystem("ClusterSystem", config)
      // Create an actor that handles cluster domain events
      system.actorOf(Props[SimpleClusterListener], name = "clusterListener")
    }
  }

}