raboof/pekko
1
0
Fork 0
Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 10

Improved java version of pi example also. See #1729

Browse source
This commit is contained in:
Patrik Nordwall 2012-01-26 14:34:31 +01:00
parent c64b73004a
commit fa41cea897
5 changed files with 239 additions and 200 deletions
Download patch file Download diff file Expand all files Collapse all files

16
akka-tutorials/akka-tutorial-first/src/main/scala/Pi.scala
View file

@ -5,7 +5,7 @@ package akka.tutorial.first.scala
//#imports
import akka.actor._
import akka.routing._
import akka.routing.RoundRobinRouter
import akka.util.Duration
import akka.util.duration._
//#imports
@ -21,7 +21,7 @@ object Pi extends App {
case object Calculate extends PiMessage
case class Work(start: Int, nrOfElements: Int) extends PiMessage
case class Result(value: Double) extends PiMessage
case class PiEstimate(pi: Double, duration: Duration)
case class PiApproximation(pi: Double, duration: Duration)
//#messages
//#worker
@ -52,21 +52,21 @@ object Pi extends App {
val start: Long = System.currentTimeMillis
//#create-router
val router = context.actorOf(
Props[Worker].withRouter(RoundRobinRouter(nrOfWorkers)), name = "workers")
val workerRouter = context.actorOf(
Props[Worker].withRouter(RoundRobinRouter(nrOfWorkers)), name = "workerRouter")
//#create-router
//#master-receive
def receive = {
//#handle-messages
case Calculate ⇒
for (i ← 0 until nrOfMessages) router ! Work(i * nrOfElements, nrOfElements)
for (i ← 0 until nrOfMessages) workerRouter ! Work(i * nrOfElements, nrOfElements)
case Result(value) ⇒
pi += value
nrOfResults += 1
if (nrOfResults == nrOfMessages) {
// Send the result to the listener
listener ! PiEstimate(pi, duration = (System.currentTimeMillis - start).millis)
listener ! PiApproximation(pi, duration = (System.currentTimeMillis - start).millis)
// Stops this actor and all its supervised children
context.stop(self)
}
@ -80,8 +80,8 @@ object Pi extends App {
//#result-listener
class Listener extends Actor {
def receive = {
case PiEstimate(pi, duration) ⇒
println("\n\tPi estimate: \t\t%s\n\tCalculation time: \t%s"
case PiApproximation(pi, duration) ⇒
println("\n\tPi approximation: \t\t%s\n\tCalculation time: \t%s"
.format(pi, duration))
context.system.shutdown()
}