In http://doc.akka.io/docs/akka/2.5.4/scala/stream/stream-io.html, in the
example titled "Connecting: REPL Client", the code implies you can type 'q'
to end the REPL session, however it doesn't shutdown the ActorSystem, so
the process does not exit. What would you need to add to this code to cause
the REPL to shut down the ActorSystem and exit when 'q' is typed?
val connection = Tcp().outgoingConnection("127.0.0.1", 8888)
val replParser =
Flow[String].takeWhile(_ != "q")
.concat(Source.single("BYE"))
.map(elem => ByteString(s"$elem\n"))
val repl = Flow[ByteString]
.via(Framing.delimiter(
ByteString("\n"),
maximumFrameLength = 256,
allowTruncation = true))
.map(_.utf8String)
.map(text => println("Server: " + text))
.map(_ => readLine("> "))
.via(replParser)
connection.join(repl).run()
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