/// <summary>
/// Constructor taking a SerialCommunicator object so as to allow COM settings to be
/// implemented.
/// </summary>
/// <param name="communicator"></param>
public SerialDataHandler(SerialCommunicator communicator, Rule rule, Value value)
{
//Create temp variable to read the required values.
var comm = (SerialCommunicator) communicator;
//Initialise the COM Port settings.
_sPort = new SerialPort(comm.ComPort)
{
BaudRate = comm.BaudRate,
Parity = Parity.None,
StopBits = StopBits.One,
DataBits = comm.DataBits,
Handshake = Handshake.None,
DtrEnable=comm.IsDTR,
RtsEnable = comm.IsRTS
};
//Make the Value available.
_value = value;
//Output the data required - any instance of [val] is replaced with the actual value
StringBuilder builder = new StringBuilder(rule.Action.OutputValue);
builder.Replace("[val]", _value.StringValue);
//Output the string
OutputValue(builder.ToString());
}
/// <summary>
/// Constructor taking a SerialCommunicator object so as to allow COM settings to be
/// implemented. Listening starts immediately.
/// </summary>
/// <param name="communicator"></param>
public SerialDataHandler(SerialCommunicator communicator)
{
Communicator = communicator;
_sPort = new SerialPort(Communicator.ComPort);
_sPort.BaudRate = 9600;
_sPort.Parity = Parity.None;
_sPort.StopBits = StopBits.One;
_sPort.DataBits = 8;
_sPort.Handshake = Handshake.None;
_sPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
try
{
if (_portOutOfService)
{
_sPort.DataReceived -= DataReceivedHandler;
throw new IOException("Port stopped responding. Closing connection on " + Communicator.ComPort);
}
ThreadPool.QueueUserWorkItem(new WaitCallback(CheckConnectionState));
}
catch(System.IO.IOException ioe)
{
DebugOutput.Print(_sPort.PortName + " has an IO error! ", ioe.Message);
}
catch(UnauthorizedAccessException uae)
{
DebugOutput.Print(_sPort.PortName + " has an Access error! ", uae.Message);
}
catch(Exception e)
{
DebugOutput.Print(_sPort.PortName + " has a general error! ", e.Message);
}
}