public OpenTracingSpanContext NewRootSpanContext()
{
var traceId = GuidFactory.Create();
var spanId = GuidFactory.Create();
var shouldSample = ShouldSample(spanId);
var baggage = new Dictionary <string, string>()
{
};
return(new OpenTracingSpanContext(traceId, 0, spanId, shouldSample, baggage));
}
public OpenTracingSpanContext NewChildSpanContext(OpenTracingSpanContext spanContext)
{
var parentTraceContext = spanContext;
var traceId = parentTraceContext.TraceId;
var parentId = parentTraceContext.SpanId;
var spanId = GuidFactory.Create();
var shouldSample = ShouldSample(spanId);
var baggage = parentTraceContext.GetBaggageItems().ToDictionary(p => p.Key, p => p.Value);
var childSpanContext = new OpenTracingSpanContext(traceId, parentId, spanId, shouldSample, baggage);
return(childSpanContext);
}
public ContextMapToResult <OpenTracingSpanContext> MapTo(TextMapFormat data)
{
OpenTracingSpanContext spanContext = null;
var lowercaseProperties = data.ToDictionary(p => p.Key.ToLower(), p => p.Value);
if (!lowercaseProperties.ContainsKey(fieldNameTraceID) ||
!lowercaseProperties.ContainsKey(fieldNameSpanID))
{
return(new ContextMapToResult <OpenTracingSpanContext>(new Exception("No key found for traceId and/or spanId")));
}
ulong traceId;
var traceIdParceResult = ulong.TryParse(lowercaseProperties[fieldNameTraceID], out traceId);
ulong parentId;
var parentIdParseResult = ulong.TryParse(lowercaseProperties[fieldNameSpanID], out parentId);
if (!traceIdParceResult || !parentIdParseResult)
{
return(new ContextMapToResult <OpenTracingSpanContext>(new Exception("Found but could not parse traceId and/or spanId")));
}
bool sampled;
if (lowercaseProperties.ContainsKey(fieldNameSampled))
{
sampled = bool.TryParse(lowercaseProperties[fieldNameSampled], out sampled) ? sampled : false;
}
else
{
sampled = false;
}
var baggage = lowercaseProperties
.Where(p => p.Key.StartsWith(prefixBaggage))
.ToDictionary(p => p.Key.Substring(prefixBaggage.Length, p.Key.Length), p => p.Value);
spanContext = new OpenTracingSpanContext(traceId, parentId, GuidFactory.Create(), sampled, baggage);
return(new ContextMapToResult <OpenTracingSpanContext>(spanContext));
}