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!str #16937 Remove section, in favor of via and separate flow

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This commit is contained in:
Patrik Nordwall 2015-04-09 15:16:59 +02:00
parent bb0bed7d3c
commit b69988c190
36 changed files with 190 additions and 271 deletions
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20
akka-docs-dev/rst/scala/code/docs/stream/FlowErrorDocSpec.scala
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@ -50,9 +50,11 @@ class FlowErrorDocSpec extends AkkaSpec {
case _: ArithmeticException => Supervision.Resume
case _ => Supervision.Stop
}
val source = Source(0 to 5).section(OperationAttributes.supervisionStrategy(decider)) {
_.filter(100 / _ < 50).map(elem => 100 / (5 - elem))
}
val flow = Flow[Int]
.filter(100 / _ < 50).map(elem => 100 / (5 - elem))
.withAttributes(OperationAttributes.supervisionStrategy(decider))
val source = Source(0 to 5).via(flow)
val result = source.runWith(Sink.fold(0)(_ + _))
// the elements causing division by zero will be dropped
// result here will be a Future completed with Success(150)
@ -68,13 +70,13 @@ class FlowErrorDocSpec extends AkkaSpec {
case _: IllegalArgumentException => Supervision.Restart
case _ => Supervision.Stop
}
val source = Source(List(1, 3, -1, 5, 7)).section(
OperationAttributes.supervisionStrategy(decider)) {
_.scan(0) { (acc, elem) =>
if (elem < 0) throw new IllegalArgumentException("negative not allowed")
else acc + elem
}
val flow = Flow[Int]
.scan(0) { (acc, elem) =>
if (elem < 0) throw new IllegalArgumentException("negative not allowed")
else acc + elem
}
.withAttributes(OperationAttributes.supervisionStrategy(decider))
val source = Source(List(1, 3, -1, 5, 7)).via(flow)
val result = source.grouped(1000).runWith(Sink.head)
// the negative element cause the scan stage to be restarted,
// i.e. start from 0 again