internal SpanContext(
TraceId traceId,
SpanId spanId,
SpanId parentId,
SpanContextFlags flags,
IReadOnlyDictionary <string, string> baggage,
string debugId)
{
TraceId = traceId;
SpanId = spanId;
ParentId = parentId;
Flags = flags;
Baggage = baggage ?? throw new ArgumentNullException(nameof(baggage));
DebugId = debugId;
}
protected override SpanContext Extract(ITextMap carrier)
{
long? traceId = null;
long? spanId = null;
long? parentId = 0L; // Conventionally, parent id == 0 means the root span
SpanContextFlags flags = SpanContextFlags.None;
foreach (var entry in carrier)
{
if (string.Equals(entry.Key, SampledName, StringComparison.OrdinalIgnoreCase))
{
string value = entry.Value;
if (string.Equals(value, "1", StringComparison.Ordinal) || string.Equals(value, "true", StringComparison.OrdinalIgnoreCase))
{
flags |= SpanContextFlags.Sampled;
}
}
else if (string.Equals(entry.Key, TraceIdName, StringComparison.OrdinalIgnoreCase))
{
traceId = HexCodec.LowerHexToUnsignedLong(entry.Value);
}
else if (string.Equals(entry.Key, ParentSpanIdName, StringComparison.OrdinalIgnoreCase))
{
parentId = HexCodec.LowerHexToUnsignedLong(entry.Value);
}
else if (string.Equals(entry.Key, SpanIdName, StringComparison.OrdinalIgnoreCase))
{
spanId = HexCodec.LowerHexToUnsignedLong(entry.Value);
}
else if (string.Equals(entry.Key, FlagsName, StringComparison.OrdinalIgnoreCase))
{
if (string.Equals(entry.Value, "1", StringComparison.OrdinalIgnoreCase))
{
flags |= SpanContextFlags.Debug;
}
}
}
if (traceId != null && parentId != null && spanId != null)
{
return(new SpanContext(new TraceId(traceId.Value), new SpanId(spanId.Value), new SpanId(parentId.Value), flags));
}
return(null);
}
protected override SpanContext Extract(ITextMap carrier)
{
TraceId? traceId = null;
SpanId? spanId = null;
SpanId parentId = new SpanId(0); // Conventionally, parent id == 0 means the root span
SpanContextFlags flags = SpanContextFlags.None;
foreach (var entry in carrier)
{
if (string.Equals(entry.Key, SampledName, StringComparison.OrdinalIgnoreCase))
{
string value = entry.Value;
if (string.Equals(value, "1", StringComparison.Ordinal) || string.Equals(value, "true", StringComparison.OrdinalIgnoreCase))
{
flags |= SpanContextFlags.Sampled;
}
}
else if (string.Equals(entry.Key, TraceIdName, StringComparison.OrdinalIgnoreCase))
{
traceId = TraceId.FromString(entry.Value);
}
else if (string.Equals(entry.Key, ParentSpanIdName, StringComparison.OrdinalIgnoreCase))
{
parentId = SpanId.FromString(entry.Value);
}
else if (string.Equals(entry.Key, SpanIdName, StringComparison.OrdinalIgnoreCase))
{
spanId = SpanId.FromString(entry.Value);
}
else if (string.Equals(entry.Key, FlagsName, StringComparison.OrdinalIgnoreCase))
{
if (string.Equals(entry.Value, "1", StringComparison.OrdinalIgnoreCase))
{
flags |= SpanContextFlags.Debug;
}
}
}
if (traceId != null && spanId != null)
{
return(new SpanContext(traceId.Value, spanId.Value, parentId, flags));
}
return(null);
}
public SpanContext(TraceId traceId, SpanId spanId, SpanId parentId, SpanContextFlags flags)
: this(traceId, spanId, parentId, flags, EmptyBaggage, debugId : null)
{
}
public SpanContext WithFlags(SpanContextFlags flags)
{
return(new SpanContext(TraceId, SpanId, ParentId, flags, Baggage, DebugId));
}
