/// <summary>
/// Instantiates a J1939 can message from the raw message, then passes the message to the J1939 parser,
/// which handles both extraction and parsing
/// </summary>
/// <param name="rawMessage"></param>
/// <param name="e"></param>
private void ProcessJ1939Data(string rawMessage, VMSCommDataEventArgs e)
{
try
{
var canMessage = new J1939Message(rawMessage, e.timeStamp);
if (canMessage.IsValidMessage())
{
canMessage.ExtractMessage();
_J1939Parser.Parse(canMessage);
PublishNewDataEvent(canMessage);
}
}
catch (Exception ex)
{
RaiseVMSEvent?.Invoke(this, new VMSCommDataErrorEventArgs(e, MessageError.UnrecognizedMessage, ex));
ErrorLogger.GenerateErrorRecord(ex);
}
}
private void HandleMessage(VMSCommDataEventArgs e)
{
var message = RemoveControlCharacters(e.message);
var type = GetMessageType(message);
message = message.Substring(1); //remove the type indicator from the message ('J', 'R', or 'I')
switch (type)
{
case VMSDataSource.J1708:
ProcessJ1708Data(message, e);
break;
case VMSDataSource.J1939:
ProcessJ1939Data(message, e);
break;
case VMSDataSource.None:
break;
}
}
/// <summary>
/// Istantiates a J1708 can message from the raw message. The J1708 Can Message handles it's own
/// raw value extraction, which is then passed onto the J1708Parser to get standard and metric values
/// </summary>
/// <param name="rawMessage"></param>
/// <param name="e"></param>
private void ProcessJ1708Data(string rawMessage, VMSCommDataEventArgs e)
{
try
{
var canMessage = new J1708Message(rawMessage, e.timeStamp);
if (canMessage.IsValidMessage())
{
canMessage.ExtractMessage();
_J1708Parser.Parse(canMessage);
PublishNewDataEvent(canMessage);
}
else
{
}
}
catch (Exception ex)
{ //Todo - trim this down to only invoke CommDataErrorEvent on specific exceptions (ie, from CanMesssage or parser)
RaiseVMSEvent?.Invoke(this, new VMSCommDataErrorEventArgs(e, MessageError.UnrecognizedMessage, ex));
ErrorLogger.GenerateErrorRecord(ex);
}
}
public RawDataParsingException(VMSCommDataEventArgs e, Exception ex)
: base($"Could not parse the raw message \"{e.message}\"" + ex.Message)
{
}
