1 files changed, 54 insertions, 0 deletions
diff --git a/flow-core/src/main/scala/com/github/jodersky/flow/SerialOperator.scala b/flow-core/src/main/scala/com/github/jodersky/flow/SerialOperator.scala
new file mode 100644
index 0000000..ec0ee27
--- /dev/null
+++ b/flow-core/src/main/scala/com/github/jodersky/flow/SerialOperator.scala
@@ -0,0 +1,54 @@
+package com.github.jodersky.flow
+
+import akka.actor.{ Actor, ActorLogging, ActorRef, Props, Terminated, actorRef2Scala }
+import internal.{ Reader, SerialConnection, ThreadDied }
+import java.nio.ByteBuffer
+
+/**
+ * Operator associated to an open serial port. All communication with a port is done via an operator. Operators are created though the serial manager.
+ * @see SerialManager
+ */
+class SerialOperator(connection: SerialConnection, bufferSize: Int, client: ActorRef) extends Actor with ActorLogging {
+  import SerialOperator._
+  import context._
+
+  val readBuffer = ByteBuffer.allocateDirect(bufferSize)
+  val reader = new Reader(connection, readBuffer, self, client)
+  val writeBuffer = ByteBuffer.allocateDirect(bufferSize)
+
+  context.watch(client)
+  client ! Serial.Opened(connection.port)
+  reader.start()
+
+  override def postStop = {
+    connection.close()
+  }
+
+  def receive: Receive = {
+
+    case Serial.Write(data, ack) => {
+      writeBuffer.clear()
+      data.copyToBuffer(writeBuffer)
+      val sent = connection.write(writeBuffer)
+      if (ack != Serial.NoAck) sender ! ack(sent)
+    }
+
+    case Serial.Close => {
+      client ! Serial.Closed
+      context stop self
+    }
+
+    case Terminated(`client`) => {
+      context stop self
+    }
+
+    //go down with reader thread
+    case ThreadDied(`reader`, ex) => throw ex
+
+  }
+
+}
+
+object SerialOperator {
+  def apply(connection: SerialConnection, bufferSize: Int, client: ActorRef) = Props(classOf[SerialOperator], connection, bufferSize, client)
+}