private async Task <ExchangeMessage> SendAndLog(QueueAbstract queue, ExchangeMessage message)
{
message = await queue.Send(message);
return(message);
}
public ExchangeMessage PreAndPostProcess(ExchangeMessage xm)
{
QXLog(xm?.uuid, "Output Node: Message Recieved From Pipe", null, "PROGRESS");
// payload is the actual content of the message to be send
string message = xm.payload;
// After the delivery or prior to sending a message, it can be filtered or
// transformed according to the configuration for each queue
// The Expression object manages the evaluation of all the filters
if (expression != null)
{
bool pass = expression.Pass(message);
logger.Info($"Top Expression Evaluated {pass}");
if (!pass)
{
if (altQueue != null)
{
logger.Info($"Sending to Alt Queue {altQueue.name}");
QXLog(xm?.uuid, "Message did not pass filter", "Sending to Alt Queue", "PROGRESS");
Task.Run(async() => { _ = await altQueue.Send(xm); });
}
else
{
QXLog(xm?.uuid, "Message did not pass filter", "No Alt Queue Configured", "WARNING");
}
xm.pass = false;
return(xm);
}
else
{
xm.pass = true;
}
}
if (topLevelFilter != null)
{
bool pass = topLevelFilter.Pass(message);
logger.Info($"Top Filter Evaluated {pass}");
if (!pass)
{
if (altQueue != null)
{
logger.Info($"Sending to Alt Queue {altQueue.name}");
QXLog(xm?.uuid, "Message did not pass filter", "Sending to Alt Queue", "PROGRESS");
_ = altQueue.Send(xm);
}
else
{
QXLog(xm?.uuid, "Message did not pass filter", "No Alt Queue Configured", "WARNING");
}
xm.pass = false;
return(xm);
}
else
{
xm.pass = true;
}
}
// If a XSLT transform has been specified
if (bTransform)
{
QXLog(xm?.uuid, "Starting Message Transformation", null, "PROGRESS");
message = Transform(message, xslVersion);
QXLog(xm?.uuid, "Message Transformation Complete", null, "PROGRESS");
xm.transformed = true;
}
else
{
xm.transformed = false;
}
if (message == null || message.Length == 0)
{
logger.Info("Message blocked by XSL Transform of Zero Length");
xm.payload = null;
xm.status = "Message blocked by XSL Transform. Null or Zero Length";
QXLog(xm?.uuid, "Messaage Transformation", "Transformation resulted in a message of zero length", "WARNING");
return(xm);
}
xm.payload = message;
QXLog(xm?.uuid, "Output Node: Post Processing Complete", null, "PROGRESS");
return(xm);
}
