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package com.github.jodersky.flow
import java.io.IOException
import scala.util.Failure
import scala.util.Success
import scala.util.Try
import com.github.jodersky.flow.internal.InternalSerial
import Serial.Open
import Serial.OpenFailed
import akka.actor.Actor
import akka.actor.ActorLogging
import akka.actor.OneForOneStrategy
import akka.actor.Props
import akka.actor.SupervisorStrategy.Escalate
import akka.actor.SupervisorStrategy.Stop
import akka.actor.actorRef2Scala
/**
* Actor that manages serial port creation. Once opened, a serial port is handed over to
* a dedicated operator actor that acts as an intermediate between client code and the native system serial port.
*/
class SerialManager extends Actor with ActorLogging {
import SerialManager._
import context._
override val supervisorStrategy =
OneForOneStrategy() {
case _: IOException => Stop
case _: Exception => Escalate
}
def receive = {
case Open(port, baud, cs, tsb, parity) => Try { InternalSerial.open(port, baud, cs, tsb, parity.id) } match {
case Failure(t) => sender ! OpenFailed(t, port, baud, cs, tsb, parity)
case Success(serial) => context.actorOf(Props(classOf[SerialOperator], sender, serial), name = escapePortString(port))
}
}
}
object SerialManager {
private def escapePortString(port: String) = port collect {
case '/' => '-'
case c => c
}
}
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