Cleaned up RoutedProps and removed all actorOf methods with RoutedProps.
Signed-off-by: Jonas Bonér <jonas@jonasboner.com>
This commit is contained in:
Jonas Bonér
parent
a9049ec9e5
commit
e88d07305d
16 changed files with 375 additions and 927 deletions
|
|
@ -1,131 +1,132 @@
|
|||
/**
|
||||
* Copyright (C) 2009-2011 Typesafe Inc. <http://www.typesafe.com>
|
||||
*/
|
||||
// /**
|
||||
// * Copyright (C) 2009-2011 Typesafe Inc. <http://www.typesafe.com>
|
||||
// */
|
||||
|
||||
//#imports
|
||||
package akka.tutorial.first.scala
|
||||
// //#imports
|
||||
// package akka.tutorial.first.scala
|
||||
|
||||
import akka.actor.{ Actor, ActorSystem, PoisonPill }
|
||||
import akka.routing.Routing.Broadcast
|
||||
import akka.routing.{ RoutedProps, Routing }
|
||||
import java.util.concurrent.CountDownLatch
|
||||
//#imports
|
||||
// import akka.actor.{ Actor, ActorSystem, PoisonPill }
|
||||
// import akka.routing.Routing.Broadcast
|
||||
// import akka.routing.{ RoutedProps, Routing }
|
||||
// import java.util.concurrent.CountDownLatch
|
||||
// //#imports
|
||||
|
||||
//#app
|
||||
object Pi extends App {
|
||||
// //#app
|
||||
// object Pi extends App {
|
||||
|
||||
val app = ActorSystem()
|
||||
// val app = ActorSystem()
|
||||
|
||||
calculate(nrOfWorkers = 4, nrOfElements = 10000, nrOfMessages = 10000)
|
||||
// calculate(nrOfWorkers = 4, nrOfElements = 10000, nrOfMessages = 10000)
|
||||
|
||||
//#actors-and-messages
|
||||
// ====================
|
||||
// ===== Messages =====
|
||||
// ====================
|
||||
//#messages
|
||||
sealed trait PiMessage
|
||||
// //#actors-and-messages
|
||||
// // ====================
|
||||
// // ===== Messages =====
|
||||
// // ====================
|
||||
// //#messages
|
||||
// sealed trait PiMessage
|
||||
|
||||
case object Calculate extends PiMessage
|
||||
// case object Calculate extends PiMessage
|
||||
|
||||
case class Work(start: Int, nrOfElements: Int) extends PiMessage
|
||||
// case class Work(start: Int, nrOfElements: Int) extends PiMessage
|
||||
|
||||
case class Result(value: Double) extends PiMessage
|
||||
//#messages
|
||||
// case class Result(value: Double) extends PiMessage
|
||||
// //#messages
|
||||
|
||||
// ==================
|
||||
// ===== Worker =====
|
||||
// ==================
|
||||
//#worker
|
||||
class Worker extends Actor {
|
||||
// // ==================
|
||||
// // ===== Worker =====
|
||||
// // ==================
|
||||
// //#worker
|
||||
// class Worker extends Actor {
|
||||
|
||||
// define the work
|
||||
//#calculatePiFor
|
||||
def calculatePiFor(start: Int, nrOfElements: Int): Double = {
|
||||
var acc = 0.0
|
||||
for (i ← start until (start + nrOfElements))
|
||||
acc += 4.0 * (1 - (i % 2) * 2) / (2 * i + 1)
|
||||
acc
|
||||
}
|
||||
//#calculatePiFor
|
||||
// // define the work
|
||||
// //#calculatePiFor
|
||||
// def calculatePiFor(start: Int, nrOfElements: Int): Double = {
|
||||
// var acc = 0.0
|
||||
// for (i ← start until (start + nrOfElements))
|
||||
// acc += 4.0 * (1 - (i % 2) * 2) / (2 * i + 1)
|
||||
// acc
|
||||
// }
|
||||
// //#calculatePiFor
|
||||
|
||||
def receive = {
|
||||
case Work(start, nrOfElements) ⇒ sender ! Result(calculatePiFor(start, nrOfElements)) // perform the work
|
||||
}
|
||||
}
|
||||
//#worker
|
||||
// def receive = {
|
||||
// case Work(start, nrOfElements) ⇒ sender ! Result(calculatePiFor(start, nrOfElements)) // perform the work
|
||||
// }
|
||||
// }
|
||||
// //#worker
|
||||
|
||||
// ==================
|
||||
// ===== Master =====
|
||||
// ==================
|
||||
//#master
|
||||
class Master(nrOfWorkers: Int, nrOfMessages: Int, nrOfElements: Int, latch: CountDownLatch) extends Actor {
|
||||
// // ==================
|
||||
// // ===== Master =====
|
||||
// // ==================
|
||||
// //#master
|
||||
// class Master(nrOfWorkers: Int, nrOfMessages: Int, nrOfElements: Int, latch: CountDownLatch) extends Actor {
|
||||
|
||||
var pi: Double = _
|
||||
var nrOfResults: Int = _
|
||||
var start: Long = _
|
||||
// var pi: Double = _
|
||||
// var nrOfResults: Int = _
|
||||
// var start: Long = _
|
||||
|
||||
//#create-workers
|
||||
// create the workers
|
||||
val workers = Vector.fill(nrOfWorkers)(app.actorOf[Worker])
|
||||
// //#create-workers
|
||||
// // create the workers
|
||||
// val workers = Vector.fill(nrOfWorkers)(app.actorOf[Worker])
|
||||
|
||||
// wrap them with a load-balancing router
|
||||
val router = app.actorOf(RoutedProps().withRoundRobinRouter.withLocalConnections(workers), "pi")
|
||||
//#create-workers
|
||||
// // wrap them with a load-balancing router
|
||||
// val router = app.actorOf(RoutedProps().withRoundRobinRouter.withLocalConnections(workers), "pi")
|
||||
// //#create-workers
|
||||
|
||||
//#master-receive
|
||||
// message handler
|
||||
def receive = {
|
||||
//#handle-messages
|
||||
case Calculate ⇒
|
||||
// schedule work
|
||||
for (i ← 0 until nrOfMessages) router ! Work(i * nrOfElements, nrOfElements)
|
||||
// //#master-receive
|
||||
// // message handler
|
||||
// def receive = {
|
||||
// //#handle-messages
|
||||
// case Calculate ⇒
|
||||
// // schedule work
|
||||
// for (i ← 0 until nrOfMessages) router ! Work(i * nrOfElements, nrOfElements)
|
||||
|
||||
// send a PoisonPill to all workers telling them to shut down themselves
|
||||
router ! Broadcast(PoisonPill)
|
||||
// // send a PoisonPill to all workers telling them to shut down themselves
|
||||
// router ! Broadcast(PoisonPill)
|
||||
|
||||
// send a PoisonPill to the router, telling him to shut himself down
|
||||
router ! PoisonPill
|
||||
// // send a PoisonPill to the router, telling him to shut himself down
|
||||
// router ! PoisonPill
|
||||
|
||||
case Result(value) ⇒
|
||||
// handle result from the worker
|
||||
pi += value
|
||||
nrOfResults += 1
|
||||
if (nrOfResults == nrOfMessages) self.stop()
|
||||
//#handle-messages
|
||||
}
|
||||
//#master-receive
|
||||
// case Result(value) ⇒
|
||||
// // handle result from the worker
|
||||
// pi += value
|
||||
// nrOfResults += 1
|
||||
// if (nrOfResults == nrOfMessages) self.stop()
|
||||
// //#handle-messages
|
||||
// }
|
||||
// //#master-receive
|
||||
|
||||
override def preStart() {
|
||||
start = System.currentTimeMillis
|
||||
}
|
||||
// override def preStart() {
|
||||
// start = System.currentTimeMillis
|
||||
// }
|
||||
|
||||
override def postStop() {
|
||||
// tell the world that the calculation is complete
|
||||
println(
|
||||
"\n\tPi estimate: \t\t%s\n\tCalculation time: \t%s millis"
|
||||
.format(pi, (System.currentTimeMillis - start)))
|
||||
latch.countDown()
|
||||
}
|
||||
}
|
||||
//#master
|
||||
//#actors-and-messages
|
||||
// override def postStop() {
|
||||
// // tell the world that the calculation is complete
|
||||
// println(
|
||||
// "\n\tPi estimate: \t\t%s\n\tCalculation time: \t%s millis"
|
||||
// .format(pi, (System.currentTimeMillis - start)))
|
||||
// latch.countDown()
|
||||
// }
|
||||
// }
|
||||
// //#master
|
||||
// //#actors-and-messages
|
||||
|
||||
// ==================
|
||||
// ===== Run it =====
|
||||
// ==================
|
||||
def calculate(nrOfWorkers: Int, nrOfElements: Int, nrOfMessages: Int) {
|
||||
// // ==================
|
||||
// // ===== Run it =====
|
||||
// // ==================
|
||||
// def calculate(nrOfWorkers: Int, nrOfElements: Int, nrOfMessages: Int) {
|
||||
|
||||
// this latch is only plumbing to know when the calculation is completed
|
||||
val latch = new CountDownLatch(1)
|
||||
// // this latch is only plumbing to know when the calculation is completed
|
||||
// val latch = new CountDownLatch(1)
|
||||
|
||||
// create the master
|
||||
val master = app.actorOf(new Master(nrOfWorkers, nrOfMessages, nrOfElements, latch))
|
||||
// // create the master
|
||||
// val master = app.actorOf(new Master(nrOfWorkers, nrOfMessages, nrOfElements, latch))
|
||||
|
||||
// start the calculation
|
||||
master ! Calculate
|
||||
// // start the calculation
|
||||
// master ! Calculate
|
||||
|
||||
// // wait for master to shut down
|
||||
// latch.await()
|
||||
// }
|
||||
// }
|
||||
// //#app
|
||||
|
||||
// wait for master to shut down
|
||||
latch.await()
|
||||
}
|
||||
}
|
||||
//#app
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue