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Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 10

improve streams actor integration docs, #21698 (#21700)

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* mapAsync + ask should be the first choice
* add missing Source.queue
* prefer actorRefWithAck
* move ActorPublisher and ActorSubscriber to the end
  with additional warning
* fix wrong doc of SourceQueue offer
* and add missing java api
This commit is contained in:
Patrik Nordwall 2016-10-26 10:24:51 +02:00 • committed by GitHub
parent bcf4de5b2c
commit aa8c253d14
9 changed files with 457 additions and 232 deletions
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10
akka-docs/rst/scala/code/docs/stream/TwitterStreamQuickstartDocSpec.scala
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@ -28,7 +28,7 @@ object TwitterStreamQuickstartDocSpec {
body.split(" ").collect { case t if t.startsWith("#") => Hashtag(t) }.toSet
}
val akka = Hashtag("#akka")
val akkaTag = Hashtag("#akka")
//#model
abstract class TweetSourceDecl {
@ -76,7 +76,7 @@ class TwitterStreamQuickstartDocSpec extends AkkaSpec {
//#authors-filter-map
val authors: Source[Author, NotUsed] =
tweets
.filter(_.hashtags.contains(akka))
.filter(_.hashtags.contains(akkaTag))
.map(_.author)
//#first-sample
//#authors-filter-map
@ -84,7 +84,7 @@ class TwitterStreamQuickstartDocSpec extends AkkaSpec {
trait Example3 {
//#authors-collect
val authors: Source[Author, NotUsed] =
tweets.collect { case t if t.hashtags.contains(akka) => t.author }
tweets.collect { case t if t.hashtags.contains(akkaTag) => t.author }
//#authors-collect
}
@ -124,7 +124,7 @@ class TwitterStreamQuickstartDocSpec extends AkkaSpec {
val bcast = b.add(Broadcast[Tweet](2))
tweets ~> bcast.in
bcast.out(0) ~> Flow[Tweet].map(_.author) ~> writeAuthors
bcast.out(0) ~> Flow[Tweet].map(_.author) ~> writeAuthors
bcast.out(1) ~> Flow[Tweet].mapConcat(_.hashtags.toList) ~> writeHashtags
ClosedShape
})
@ -192,7 +192,7 @@ class TwitterStreamQuickstartDocSpec extends AkkaSpec {
val sumSink = Sink.fold[Int, Int](0)(_ + _)
val counterRunnableGraph: RunnableGraph[Future[Int]] =
tweetsInMinuteFromNow
.filter(_.hashtags contains akka)
.filter(_.hashtags contains akkaTag)
.map(t => 1)
.toMat(sumSink)(Keep.right)