make sample runnable without instralling native libries

3 files changed, 152 insertions, 0 deletions

diff --git a/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/ConsoleReader.scala b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/ConsoleReader.scala
new file mode 100644
index 0000000..8eb1f15
--- /dev/null
+++ b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/ConsoleReader.scala
@@ -0,0 +1,28 @@
+package com.github.jodersky.flow.samples.terminal
+
+import akka.actor.Actor
+import akka.actor.actorRef2Scala
+
+class ConsoleReader extends Actor {
+  import context._
+  import ConsoleReader._
+
+  def receive = {
+    case Read =>
+      Console.readLine() match {
+        case ":q" | null => parent ! EOT
+        case s => {
+          parent ! ConsoleInput(s)
+        }
+      }
+  }
+
+}
+
+object ConsoleReader {
+
+  case object Read
+  case object EOT
+  case class ConsoleInput(in: String)
+
+}
\ No newline at end of file
diff --git a/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Main.scala b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Main.scala
new file mode 100644
index 0000000..5b17265
--- /dev/null
+++ b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Main.scala
@@ -0,0 +1,33 @@
+package com.github.jodersky.flow
+package samples.terminal
+
+import com.github.jodersky.flow.Parity
+import com.github.jodersky.flow.SerialSettings
+import com.github.jodersky.flow.internal.SerialConnection
+
+import akka.actor.ActorSystem
+
+object Main {
+ 
+  def ask(label: String, default: String) = {
+    print(label + " [" + default.toString + "]: ")
+    val in = Console.readLine()
+    println("")
+    if (in.isEmpty) default else in
+  }
+
+  def main(args: Array[String]): Unit = {
+    val port = ask("Device", "/dev/ttyACM0")
+    val baud = ask("Baud rate", "115200").toInt
+    val cs = ask("Char size", "8").toInt
+    val tsb = ask("Use two stop bits", "false").toBoolean
+    val parity = Parity(ask("Parity (0=None, 1=Odd, 2=Even)", "0").toInt)
+    val settings = SerialSettings(baud, cs, tsb, parity)
+
+    println("Starting terminal system, enter :q to exit.")
+    SerialConnection.debug(true)
+    val system = ActorSystem("flow")
+    val terminal = system.actorOf(Terminal(port, settings), name = "terminal")
+    system.registerOnTermination(println("Stopped terminal system."))
+  }
+}
\ No newline at end of file
diff --git a/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Terminal.scala b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Terminal.scala
new file mode 100644
index 0000000..cf75d98
--- /dev/null
+++ b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Terminal.scala
@@ -0,0 +1,91 @@
+package com.github.jodersky.flow.samples.terminal
+
+import com.github.jodersky.flow.Serial
+import com.github.jodersky.flow.Serial.Close
+import com.github.jodersky.flow.Serial.Closed
+import com.github.jodersky.flow.Serial.CommandFailed
+import com.github.jodersky.flow.Serial.Event
+import com.github.jodersky.flow.Serial.Opened
+import com.github.jodersky.flow.Serial.Received
+import com.github.jodersky.flow.Serial.Write
+import com.github.jodersky.flow.SerialSettings
+
+import akka.actor.Actor
+import akka.actor.ActorLogging
+import akka.actor.ActorRef
+import akka.actor.Props
+import akka.actor.Terminated
+import akka.actor.actorRef2Scala
+import akka.io.IO
+import akka.util.ByteString
+
+class Terminal(port: String, settings: SerialSettings) extends Actor with ActorLogging {
+  import Terminal._
+  import context._
+
+  val reader = actorOf(Props[ConsoleReader])
+  
+  log.info(s"Requesting manager to open port: ${port}, baud: ${settings.baud}")
+  IO(Serial) ! Serial.Open(port, settings)
+  
+  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
+      reader ! ConsoleReader.Read
+    }
+  }
+
+  def opened(operator: ActorRef): Receive = {
+    
+    case Received(data) => {
+      log.info(s"Received data: ${formatData(data)}")
+    }
+    
+    case Wrote(data) => log.info(s"Wrote data: ${formatData(data)}")
+
+    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 ConsoleReader.EOT => {
+      log.info("Initiating close.")
+      operator ! Close
+    }
+
+    case ConsoleReader.ConsoleInput(input) => {
+      val data = ByteString(input.getBytes)
+      operator ! Write(data, length => Wrote(data.take(length)))
+      reader ! ConsoleReader.Read
+    }
+  }
+
+  
+
+}
+
+object Terminal {
+  case class Wrote(data: ByteString) extends Event
+  
+  def apply(port: String, settings: SerialSettings) = Props(classOf[Terminal], port, settings)
+  
+  private def formatData(data: ByteString) = data.mkString("[", ",", "]") + " " + (new String(data.toArray, "UTF-8"))
+  
+}
\ No newline at end of file