add terminal example

1 files changed, 46 insertions, 0 deletions

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..b8d332c
--- /dev/null
+++ b/flow-samples/terminal/src/main/scala/com/github/jodersky/flow/samples/terminal/Main.scala
@@ -0,0 +1,46 @@
+package com.github.jodersky.flow
+package samples.terminal
+
+import com.github.jodersky.flow._
+import akka.actor.ActorSystem
+import akka.actor.Props
+import akka.actor.actorRef2Scala
+import akka.util.ByteString
+
+object Main {
+
+  def defaultIfEmpty(in: String, default: String): String = if (in.isEmpty) default else in
+
+  def ask(label: String, default: String) = {
+    print(s"${label} [${default}]: ")
+    val in = Console.readLine()
+    println("")
+    defaultIfEmpty(in, default)
+  }
+
+  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)
+    println("Starting terminal, enter :q to exit.")
+    
+    internal.InternalSerial.debug(true)
+    val system = ActorSystem("flow")
+    val serial = system.actorOf(Props(classOf[SerialHandler], port, baud, cs, tsb, parity), name = "serial-handler")
+
+    var continue = true
+    while (continue) {
+      val in = Console.readLine()
+      if (in == ":q") {
+        continue = false
+        serial ! "close"
+      } else {
+        serial ! ByteString(in.getBytes())
+      }
+    }
+    system.shutdown()
+    println("Stopped terminal.")
+  }
+}
\ No newline at end of file