public async Task <bool> WriteAsync(CancellationToken ct, MessageData data, bool result)
{
const string funcName = nameof(WriteAsync);
// Format the message.
var message = new Message
{
Header =
{
MessageType = "RESPONSE",
MessageContent = "DATA",
Result = result,
ResultSpecified = true
},
Item = data,
};
if (!data.RespondToOperatorUI) // Respond to front end.
{
try
{
var serializer = new XmlSerializer(typeof(Message));
var writer = new StringWriter();
serializer.Serialize(writer, message);
var responseString = writer.ToString();
return(await FrontEndConnection.WriteResponse(responseString, ct)); //
}
catch (Exception ex)
{
Log.ErrorEx(funcName, $"Exception occurred while writing data response to front-end: {ex}");
// TODO: Throw?
}
}
else // Respond to operator ui.
{
var opMessage = new OperatorMessage
{
Header = new OperatorMessageHeader
{
// TODO: Set Header infos.
},
Item = message // Append front end message as the item field.
};
try
{
var serializer = new XmlSerializer(typeof(OperatorMessage));
var writer = new StringWriter();
serializer.Serialize(writer, opMessage);
var responseString = writer.ToString();
return(await OperatorConnection.WriteResponse(responseString, ct));
}
catch (Exception ex)
{
Log.ErrorEx(funcName, $"Exception occurred while writing data response to operator: {ex}");
// TODO: Throw?
}
}
throw new NotImplementedException();
}
public void Run(CancellationToken ct)
{
// Start the servers.
_frontEndTask = FrontEndConnection.Run(ct);
_opUiTask = OperatorConnection.Run(ct);
}