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package com.github.jodersky.flow.samples.terminal
import com.github.jodersky.flow.Serial._
import akka.actor.Actor
import akka.actor.ActorLogging
import akka.actor.ActorRef
import akka.util.ByteString
import akka.io.IO
import com.github.jodersky.flow.Serial
import akka.actor.Terminated
import com.github.jodersky.flow.Parity
import akka.actor.Props
class Terminal(port: String, baud: Int, cs: Int, tsb: Boolean, parity: Parity.Parity) extends Actor with ActorLogging {
import Terminal._
import context._
val reader = actorOf(Props[ConsoleReader])
override def preStart() = {
log.info(s"Requesting manager to open port: ${port}, baud: ${baud}")
IO(Serial) ! Serial.Open(port, baud)
}
override def postStop() = {
system.shutdown()
}
def receive = {
case CommandFailed(cmd, reason) => {
log.error(s"Connection failed, stopping terminal. Reason: ${reason}")
context stop self
}
case Opened(port, _, _, _, _) => {
log.info(s"Port ${port} is now open.")
val operator = sender
context become opened(operator)
context watch operator
operator ! Register(self)
reader ! Read
}
}
def opened(operator: ActorRef): Receive = {
case Received(data) => {
log.info(s"Received data: ${formatData(data)} (${new String(data.toArray, "UTF-8")})")
}
case Wrote(data) => log.info(s"Wrote data: ${formatData(data)} (${new String(data.toArray, "UTF-8")})")
case Closed => {
log.info("Operator closed normally, exiting terminal.")
context unwatch operator
context stop self
}
case Terminated(`operator`) => {
log.error("Operator crashed, exiting terminal.")
context stop self
}
case ConsoleInput(":q") => {
log.info("Initiating close.")
operator ! Close
}
case ConsoleInput(input) => {
val data = ByteString(input.getBytes)
operator ! Write(data, Wrote(data))
reader ! Read
}
}
private def formatData(data: ByteString) = data.mkString("[", ",", "]")
}
object Terminal {
case class Wrote(data: ByteString) extends Event
}
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