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Add and reuse example for FileIO stream operator. (#25660)

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Tzu-Chiao Yeh 2018-09-24 23:50:27 +08:00 • committed by Arnout Engelen
parent 83b30f1ed2
commit f06595dd5d
9 changed files with 121 additions and 14 deletions
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17
akka-docs/src/test/scala/docs/stream/io/StreamFileDocSpec.scala
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@ -7,7 +7,7 @@ package docs.stream.io
import java.nio.file.{ Files, Paths }
import akka.stream._
import akka.stream.scaladsl.{ FileIO, Sink }
import akka.stream.scaladsl.{ FileIO, Sink, Source }
import akka.stream.testkit.Utils._
import akka.util.ByteString
import akka.testkit.AkkaSpec
@ -39,6 +39,12 @@ class StreamFileDocSpec extends AkkaSpec(UnboundedMailboxConfig) {
//#file-source
}
{
//#file-sink
val file = Paths.get("greeting.txt")
//#file-sink
}
"read data from a file" in {
//#file-source
def handle(b: ByteString): Unit //#file-source
@ -58,4 +64,13 @@ class StreamFileDocSpec extends AkkaSpec(UnboundedMailboxConfig) {
.withAttributes(ActorAttributes.dispatcher("custom-blocking-io-dispatcher"))
//#custom-dispatcher-code
}
"write data into a file" in {
//#file-sink
val text = Source.single("Hello Akka Stream!")
val result: Future[IOResult] = text
.map(t ⇒ ByteString(t))
.runWith(FileIO.toPath(file))
//#file-sink
}
}