public SpanContext Extract(IPropagatorMap propagatorMap)
{
if (propagatorMap == null)
{
throw new ArgumentNullException(nameof(propagatorMap));
}
TraceId?traceId = null;
ulong? spanId = null, parentId = null;
bool sampled = false, debug = false;;
foreach (var entry in propagatorMap)
{
if (string.Equals(entry.Key, TraceIdHeader, StringComparison.OrdinalIgnoreCase))
{
if (TraceId.TryParse(entry.Value, out var _trace))
{
traceId = _trace;
}
}
else if (string.Equals(entry.Key, SpanIdHeader, StringComparison.OrdinalIgnoreCase))
{
if (ulong.TryParse(entry.Value, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var _spanId))
{
spanId = _spanId;
}
}
else if (string.Equals(entry.Key, ParentIdHeader, StringComparison.OrdinalIgnoreCase))
{
if (ulong.TryParse(entry.Value, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var _parent))
{
parentId = _parent;
}
}
else if (string.Equals(entry.Key, SampledHeader, StringComparison.OrdinalIgnoreCase))
{
sampled = string.Equals(entry.Value, SampledTrue);
}
else if (string.Equals(entry.Key, DebugHeader, StringComparison.OrdinalIgnoreCase))
{
debug = string.Equals(entry.Value, SampledTrue);
}
}
if (traceId == null || spanId == null)
{
return(null);
}
return(new SpanContext(traceId.Value,
spanId.Value,
parentId,
sampled,
debug,
shared: false));
}
public void Inject(SpanContext spanContext, IPropagatorMap propagatorMap)
{
propagatorMap[TraceIdHeader] = spanContext.TraceId.ToString();
propagatorMap[SpanIdHeader] = spanContext.SpanId.ToString(IdFormat, CultureInfo.InvariantCulture);
if (spanContext.ParentId.HasValue)
{
propagatorMap[ParentIdHeader] = spanContext.ParentId.Value.ToString(IdFormat, CultureInfo.InvariantCulture);
}
if (spanContext.Debug)
{
propagatorMap[DebugHeader] = SampledTrue;
}
else
{
if (spanContext.Sampled)
{
propagatorMap[SampledHeader] = SampledTrue;
}
else
{
propagatorMap[SampledHeader] = SampledFalse;
}
}
}
public static ITextMap ToTextMap(IPropagatorMap propagatorMap) => new TextMapAdapter(propagatorMap);
public TextMapAdapter(IPropagatorMap propagatorMap)
{
this.propagatorMap = propagatorMap ?? throw new ArgumentNullException(nameof(propagatorMap));
}
