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Merge pull request #17105 from akka/wip-async-stage-∂π

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add async stage
This commit is contained in:
Roland Kuhn 2015-04-10 10:52:01 +02:00
commit 8f47b6dfcc
66 changed files with 981 additions and 787 deletions
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13
akka-stream/src/main/scala/akka/stream/scaladsl/Flow.scala
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@ -351,8 +351,9 @@ trait FlowOps[+Out, +Mat] {
/**
* Transform this stream by applying the given function to each of the elements
* as they pass through this processing step. The function returns a `Future` and the
* value of that future will be emitted downstreams. As many futures as requested elements by
* downstream may run in parallel and may complete in any order, but the elements that
* value of that future will be emitted downstream. The number of Futures
* that shall run in parallel is given as the first argument to ``mapAsync``.
* These Futures may complete in any order, but the elements that
* are emitted downstream are in the same order as received from upstream.
*
* If the group by function `f` throws an exception or if the `Future` is completed
@ -365,8 +366,8 @@ trait FlowOps[+Out, +Mat] {
*
* @see [[#mapAsyncUnordered]]
*/
def mapAsync[T](f: Out ⇒ Future[T]): Repr[T, Mat] =
andThen(MapAsync(f.asInstanceOf[Any ⇒ Future[Any]]))
def mapAsync[T](parallelism: Int, f: Out ⇒ Future[T]): Repr[T, Mat] =
andThen(MapAsync(parallelism, f.asInstanceOf[Any ⇒ Future[Any]]))
/**
* Transform this stream by applying the given function to each of the elements
@ -386,8 +387,8 @@ trait FlowOps[+Out, +Mat] {
*
* @see [[#mapAsync]]
*/
def mapAsyncUnordered[T](f: Out ⇒ Future[T]): Repr[T, Mat] =
andThen(MapAsyncUnordered(f.asInstanceOf[Any ⇒ Future[Any]]))
def mapAsyncUnordered[T](parallelism: Int, f: Out ⇒ Future[T]): Repr[T, Mat] =
andThen(MapAsyncUnordered(parallelism, f.asInstanceOf[Any ⇒ Future[Any]]))
/**
* Only pass on those elements that satisfy the given predicate.