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package akka.serial
import akka.actor.{ Actor, ActorLogging, OneForOneStrategy }
import akka.actor.SupervisorStrategy.{ Escalate, Stop }
import scala.util.{ Failure, Success, Try }
import sync.SerialConnection
/**
* Entry point to the serial API. 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.
* @see SerialOperator
*/
private[serial] class SerialManager extends Actor {
import SerialManager._
import context._
override val supervisorStrategy = OneForOneStrategy() {
case _: Exception if sender == watcher => Escalate
case _: Exception => Stop
}
private val watcher = actorOf(Watcher(self), "watcher")
def receive = {
case open @ Serial.Open(port, settings, bufferSize) => Try {
SerialConnection.open(port, settings)
} match {
case Success(connection) => context.actorOf(SerialOperator(connection, bufferSize, sender), name = escapePortString(connection.port))
case Failure(err) => sender ! Serial.CommandFailed(open, err)
}
case w: Serial.Watch => watcher.forward(w)
case u: Serial.Unwatch => watcher.forward(u)
}
}
private[serial] object SerialManager {
private def escapePortString(port: String) = port map {
case '/' => '-'
case c => c
}
}
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