pekko/akka-docs/rst/scala/code/docs/stream/cookbook/RecipeParseLines.scala
lolski 21381d5710 =str #19293 fix issues in Sink.seq + minor doc fixes + use Sink.seq and limit in tests where appropriate
* Sink.seq (Scala DSL) now returns immutable.Seq rather than Seq
* Sink.seq will not silently truncate when incoming elements is > Int.MAX_VALUE
* minor doc fixes
* replacing various grouped(n) / Sink.head with limit(n) / Sink.seq in various tests
* fix inconsistent indentation in RequestParserSpec
2016-02-12 01:36:21 +08:00

39 lines
972 B
Scala

package docs.stream.cookbook
import akka.stream.scaladsl.Sink
import akka.stream.scaladsl.Source
import akka.util.ByteString
import scala.annotation.tailrec
import scala.concurrent.Await
import scala.concurrent.duration._
class RecipeParseLines extends RecipeSpec {
"Recipe for parsing line from bytes" must {
"work" in {
val rawData = Source(List(
ByteString("Hello World"),
ByteString("\r"),
ByteString("!\r"),
ByteString("\nHello Akka!\r\nHello Streams!"),
ByteString("\r\n\r\n")))
//#parse-lines
import akka.stream.io.Framing
val linesStream = rawData.via(Framing.delimiter(
ByteString("\r\n"), maximumFrameLength = 100, allowTruncation = true))
.map(_.utf8String)
//#parse-lines
Await.result(linesStream.limit(10).runWith(Sink.seq), 3.seconds) should be(List(
"Hello World\r!",
"Hello Akka!",
"Hello Streams!",
""))
}
}
}