protected override void RunJob(Job job)
{
if (_client == null)
{
Log.WriteLine($"TCP: Configuration error, IP [{_ip}] or port [{_port}] is invalid.");
job.OnFulFilled(new CommandResponse(string.Empty, false, $"Configuration error, IP [{_ip}] or port [{_port}] is invalid."));
return;
}
int attempt = 1;
var respString = String.Empty;
string command = job.Command;
while ((attempt < 4) && (_client != null))
{
Log.WriteLine("TCP: [{0}] Attempt {1} to send command.", command, attempt);
if (!_client.Connected)
{
try
{
_client = new TcpClient();
_client.Connect(_ip, _port);
}
catch (Exception e)
{
Log.WriteLine("TCP: [{0}] Failed To connect or create client for command: {1}", command, e.Message);
job.OnFulFilled(new CommandResponse("", false, $"Failed To Connect to Client: {e.Message}"));
return;
}
}
_client.ReceiveTimeout = 1000;
_client.SendTimeout = 1000;
string error = String.Empty;
var stream = _client.GetStream();
var bytes = Encoding.ASCII.GetBytes(command);
try
{
stream.Write(bytes, 0, bytes.Length);
Log.WriteLine("TCP: [{0}] Sent command!", command);
}
catch (Exception e)
{
Log.WriteLine("TCP: [{0}] Unable to write command to stream: {1}", command, e.Message);
job.OnFulFilled(new CommandResponse("", false, $"Failed to send message: {e.Message}"));
return;
}
try
{
switch (job.ResponseType)
{
case ResponseType.NoResponse:
attempt = 10;
Log.WriteLine("TCP: [{0}] No reply needed to command", command);
break;
case ResponseType.DoubleFullResponse:
case ResponseType.DigitResponse:
case ResponseType.FullResponse:
{
Log.WriteLine("TCP: [{0}] Expecting a {1} reply to command, waiting...", command, job.ResponseType.ToString());
var response = new byte[256];
var respCount = stream.Read(response, 0, response.Length);
respString = Encoding.ASCII.GetString(response, 0, respCount);
Log.WriteLine("TCP: [{0}] Received reply to command -> [{1}], trimming", command, respString);
int hashPos = respString.IndexOf('#');
if (hashPos > 0)
{
respString = respString.Substring(0, hashPos);
}
Log.WriteLine("TCP: [{0}] Returning reply to command -> [{1}]", command, respString);
attempt = 10;
}
break;
}
}
catch (Exception e)
{
Log.WriteLine("TCP: [{0}] Failed to read reply to command. {1} thrown", command, e.GetType().Name);
if (job.ResponseType != ResponseType.NoResponse)
{
respString = "0#";
}
}
stream.Close();
attempt++;
}
job.OnFulFilled(new CommandResponse(respString));
}
protected override void RunJob(Job job)
{
CommandResponse response = null;
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Processing Job", job.Number, job.Command);
}
if (Connected)
{
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Connected! Discarding any bytes in input buffer", job.Number, job.Command);
}
string reply;
try
{
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Sending command", job.Number, job.Command);
}
string command = job.Command;
switch (job.ResponseType)
{
case ResponseType.NoResponse:
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Expecting no response for command", job.Number, job.Command);
}
break;
case ResponseType.DigitResponse:
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Expecting single digit response for command", job.Number, job.Command);
}
command += ",n";
break;
case ResponseType.FullResponse:
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Expecting #-delimited response for Command...", job.Number, job.Command);
}
command += ",#";
break;
case ResponseType.DoubleFullResponse:
command += ",##";
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Expecting two #-delimited responses for Command...", job.Number, job.Command);
}
break;
}
reply = _oat.Action("Serial:PassThroughCommand", command);
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Received reply: '{2}'", job.Number, job.Command, reply);
}
response = new CommandResponse(reply, true);
}
catch (Exception ex)
{
Log.WriteLine("ASCOM: {0:0000}: [{1}] Failed to send command. {2}", job.Number, job.Command, ex.Message);
job.OnFulFilled(new CommandResponse(string.Empty, false, $"Unable to execute command. " + ex.Message));
return;
}
}
else
{
Log.WriteLine("ASCOM: {0:0000}: Telescope is not connected!", job.Number);
response = new CommandResponse(string.Empty, false, $"Unable to connect to telescope");
}
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: Calling OnFulFilled lambda", job.Number);
}
job.OnFulFilled(response);
job.Succeeded = response.Success;
if (_logJobs)
{
Log.WriteLine("ASCOM: {0:0000}: Job completed", job.Number);
}
}