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

This example Akka source code file (RemoteDeployer.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, address, akka, configurationexception, none, norouter, option, remote, remotedeployer, remoterouterconfig, remotescope, route, router, routing, scope, serialversionuid, string

The RemoteDeployer.scala Akka example source code

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

import akka.actor._
import akka.routing._
import akka.remote.routing._
import akka.ConfigurationException
import akka.japi.Util.immutableSeq
import com.typesafe.config._
import akka.routing.Pool
import akka.remote.routing.RemoteRouterConfig

@SerialVersionUID(1L)
final case class RemoteScope(node: Address) extends Scope {
  def withFallback(other: Scope): Scope = this
}

/**
 * INTERNAL API
 */
private[akka] class RemoteDeployer(_settings: ActorSystem.Settings, _pm: DynamicAccess) extends Deployer(_settings, _pm) {
  override def parseConfig(path: String, config: Config): Option[Deploy] = {
    import scala.collection.JavaConverters._

    super.parseConfig(path, config) match {
      case d @ Some(deploy) ⇒
        deploy.config.getString("remote") match {
          case AddressFromURIString(r) ⇒ Some(deploy.copy(scope = RemoteScope(r)))
          case str if !str.isEmpty     ⇒ throw new ConfigurationException(s"unparseable remote node name [${str}]")
          case _ ⇒
            val nodes = immutableSeq(deploy.config.getStringList("target.nodes")).map(AddressFromURIString(_))
            if (nodes.isEmpty || deploy.routerConfig == NoRouter) d
            else deploy.routerConfig match {
              case r: Pool ⇒ Some(deploy.copy(routerConfig = RemoteRouterConfig(r, nodes)))
              case _       ⇒ d
            }
        }
      case None ⇒ None
    }
  }
}