public void TransformSpans(LambdaRootSpan rootSpan)
{
lock (_spanReservoirLock)
{
// Record errors after root span has finished. By now, txn name has been set
foreach (LambdaSpan lambdaSpan in _spanReservoir)
{
_errors.RecordErrors(lambdaSpan);
}
var arnTag = rootSpan.GetTag("aws.arn");
var arn = (arnTag as string) ?? "";
LinkedList <Event> spans;
// Do not collect Spans if sampled=false, clear reservoir and set spans to empty list
if (rootSpan.PrioritySamplingState.Sampled)
{
spans = _spanReservoir;
}
else
{
spans = new LinkedList <Event>();
}
_spanReservoir = new LinkedList <Event>();
TransactionEvent txnEvent = new TransactionEvent(rootSpan);
var errorEvents = _errors.GetAndClearEvents();
var errorTraces = _errors.GetAndClearTraces();
var(payload, data) = PreparePayload(arn, _executionEnv, spans.ToList(), txnEvent, errorEvents, errorTraces);
// If named pipe exists we want to send the payload there instead of writing to standard out, overwriting any previous data.
if (_fileSystemManager.Exists(_namedPipePath))
{
_fileSystemManager.WriteAllText(_namedPipePath, payload);
return;
}
WriteData(payload, data);
}
}
