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move code to src/test

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* so that it compiles and tests pass
* fix some additional snip references in getting started
This commit is contained in:
Patrik Nordwall 2017-05-11 15:11:25 +02:00
parent 413df8e0f4
commit 59f53e1a22
289 changed files with 45 additions and 45 deletions
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59
akka-docs/src/main/scala/docs/stream/cookbook/RecipeMultiGroupBy.scala
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@ -1,59 +0,0 @@
package docs.stream.cookbook
import akka.NotUsed
import akka.stream.scaladsl.{ Sink, Source }
import scala.collection.immutable
import scala.concurrent.Await
import scala.concurrent.duration._
class RecipeMultiGroupBy extends RecipeSpec {
"Recipe for multi-groupBy" must {
"work" in {
case class Topic(name: String)
val elems = Source(List("1: a", "1: b", "all: c", "all: d", "1: e"))
val extractTopics = { msg: Message =>
if (msg.startsWith("1")) List(Topic("1"))
else List(Topic("1"), Topic("2"))
}
//#multi-groupby
val topicMapper: (Message) => immutable.Seq[Topic] = extractTopics
val messageAndTopic: Source[(Message, Topic), NotUsed] = 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 = messageAndTopic
.groupBy(2, _._2).map {
case (msg, topic) =>
// do what needs to be done
//#multi-groupby
(msg, topic)
//#multi-groupby
}
//#multi-groupby
val result = multiGroups
.grouped(10)
.mergeSubstreams
.map(g => g.head._2.name + g.map(_._1).mkString("[", ", ", "]"))
.limit(10)
.runWith(Sink.seq)
Await.result(result, 3.seconds).toSet should be(Set(
"1[1: a, 1: b, all: c, all: d, 1: e]",
"2[all: c, all: d]"))
}
}
}