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!str #16902: Unify stream internal representation

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also =str #16912: Fix StreamTcpSpec flakiness
This commit is contained in:
Endre Sándor Varga 2015-01-28 14:19:50 +01:00
parent cac9c9f2fb
commit 8d77fa8b29
230 changed files with 7814 additions and 9596 deletions
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10
akka-docs-dev/rst/scala/code/docs/stream/cookbook/RecipeMultiGroupBy.scala
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@ -15,7 +15,7 @@ class RecipeMultiGroupBy extends RecipeSpec {
case class Topic(name: String)
val elems = Source(List("1: a", "1: b", "all: c", "all: d", "1: e"))
val topicMapper: (Message) => immutable.Seq[Topic] = { msg =>
val topicMapper = { msg: Message =>
if (msg.startsWith("1")) List(Topic("1"))
else List(Topic("1"), Topic("2"))
}
@ -28,14 +28,14 @@ class RecipeMultiGroupBy extends RecipeSpec {
}
//#multi-groupby
val messageAndTopic: Source[(Message, Topic)] = elems.mapConcat { msg: Message =>
val messageAndTopic: Source[(Message, Topic), Unit] = elems.mapConcat { msg: Message =>
val topicsForMessage = topicMapper(msg)
// Create a (Msg, Topic) pair for each of the topics
// the message belongs to
topicsForMessage.map(msg -> _)
}
val multiGroups: Source[(Topic, Source[String])] = messageAndTopic.groupBy(_._2).map {
val multiGroups: Source[(Topic, Source[String, Unit]), Unit] = messageAndTopic.groupBy(_._2).map {
case (topic, topicStream) =>
// chopping of the topic from the (Message, Topic) pairs
(topic, topicStream.map(_._1))
@ -43,8 +43,8 @@ class RecipeMultiGroupBy extends RecipeSpec {
//#multi-groupby
val result = multiGroups.map {
case (topic, topicMessages) => topicMessages.grouped(10).map(topic.name + _.mkString("[", ", ", "]")).runWith(Sink.head)
}.mapAsync(identity).grouped(10).runWith(Sink.head)
case (topic, topicMessages) => topicMessages.grouped(10).map(topic.name + _.mkString("[", ", ", "]")).runWith(Sink.head())
}.mapAsync(identity).grouped(10).runWith(Sink.head())
Await.result(result, 3.seconds).toSet should be(Set(
"1[1: a, 1: b, all: c, all: d, 1: e]",