I suspect your problem is that your test exits before the stream has a
chance to run.
On Thu, Apr 2, 2015 at 11:56 PM, Viktor Klang <viktor.kl...@gmail.com>
wrote:
> Works on my machine:
>
> scala> import scala.collection.mutable.ArrayBuffer
> import scala.collection.mutable.ArrayBuffer
>
> scala> import akka.stream._
> import akka.stream._
>
> scala> import akka.stream.scaladsl._
> import akka.stream.scaladsl._
>
> scala> implicit val sys = ActorSystem("repl")
> sys: akka.actor.ActorSystem = akka://repl
>
> scala> import sys.dispatcher
> import sys.dispatcher
>
> scala> implicit val fm = ActorFlowMaterializer()
> fm: akka.stream.ActorFlowMaterializer =
> ActorFlowMaterializerImpl(ActorFlowMaterializerSettings(4,16,,<function1>,StreamSubscriptionTimeoutSettings(CancelTermination,5000
> milliseconds),false,1000,Optimizations(false,false,false,false)),akka.dispatch.Dispatchers@3dff9cf6
> ,Actor[akka://repl/user/$b#575469743],1,flow,Optimizations(false,false,false,false))
>
> scala> val source: Source[Int, Unit] = Source(1 to 10)
> source: akka.stream.scaladsl.Source[Int,Unit] =
> akka.stream.scaladsl.Source@4d8aca2f
>
> scala> val printSink = Sink.foreach[Int](println)
> printSink: akka.stream.scaladsl.Sink[Int,scala.concurrent.Future[Unit]] =
> akka.stream.scaladsl.Sink@7d6cac88
>
>
> scala> val actionStream: ArrayBuffer[(Int) => Int] =
> ArrayBuffer.empty[(Int) => Int]
> actionStream: scala.collection.mutable.ArrayBuffer[Int => Int] =
> ArrayBuffer()
>
> scala> def add(a: Int) = a + 1
> add: (a: Int)Int
>
> scala>
>
> scala> def exec(): Unit =
> | actionStream.drop(1).foldLeft(source)(
> | (source, action) => source.via(Flow[Int].mapAsync(e =>
> Future(action(e))))
> | ).runWith(printSink)
> exec: ()Unit
>
> scala>
>
> scala> actionStream += add
> res6: actionStream.type = ArrayBuffer(<function1>)
>
> scala> actionStream += add
> res7: actionStream.type = ArrayBuffer(<function1>, <function1>)
>
> scala> exec()
>
> scala> 2
> 3
> 4
> 5
> 6
> 7
> 8
> 9
> 10
> 11
>
> On Thu, Apr 2, 2015 at 11:29 PM, Allen Nie <aiming...@gmail.com> wrote:
>
>> I came up a much simplified program to test, and I still get nothing:
>>
>> val source: Source[Int, Unit] = Source(1 to 10)
>> val printSink = Sink.foreach[Int](e => println(e))
>>
>> val actionStream: ArrayBuffer[(Int) => Int] = ArrayBuffer.empty[(Int) => Int]
>>
>> def add(a: Int) = a + 1
>>
>> def exec(): Unit = {
>> val sourceReady = actionStream.drop(1).foldLeft(source)
>> {(source, action) =>
>> source.via(Flow[Int].mapAsync(e => Future(action.apply(e))))
>> }
>>
>> sourceReady
>>
>> sourceReady.runWith(printSink)
>> }
>>
>> "parallel test" should "work" in {
>> actionStream += ((a: Int) => add(a))
>> actionStream += ((a: Int) => add(a))
>>
>> exec()
>> }
>>
>> --
>> >>>>>>>>>> Read the docs: http://akka.io/docs/
>> >>>>>>>>>> Check the FAQ:
>> http://doc.akka.io/docs/akka/current/additional/faq.html
>> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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>
>
>
> --
> Cheers,
> √
>
--
Cheers,
√
--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
>>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html
>>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user
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