internal static OtlpTrace.Span ToOtlpSpan(this SpanData spanData)
{
// protobuf doesn't understand Span<T> yet: https://github.com/protocolbuffers/protobuf/issues/3431
Span <byte> traceIdBytes = stackalloc byte[16];
Span <byte> spanIdBytes = stackalloc byte[8];
spanData.Context.TraceId.CopyTo(traceIdBytes);
spanData.Context.SpanId.CopyTo(spanIdBytes);
var parentSpanIdString = ByteString.Empty;
if (spanData.ParentSpanId != default)
{
Span <byte> parentSpanIdBytes = stackalloc byte[8];
spanData.ParentSpanId.CopyTo(parentSpanIdBytes);
parentSpanIdString = ByteString.CopyFrom(parentSpanIdBytes.ToArray());
}
var otlpSpan = new OtlpTrace.Span
{
Name = spanData.Name,
Kind = spanData.Kind == null
? OtlpTrace.Span.Types.SpanKind.Unspecified
: (OtlpTrace.Span.Types.SpanKind)spanData.Kind.Value,
TraceId = ByteString.CopyFrom(traceIdBytes.ToArray()),
SpanId = ByteString.CopyFrom(spanIdBytes.ToArray()),
ParentSpanId = parentSpanIdString,
Status = ToOtlpStatus(spanData.Status),
StartTimeUnixNano = (ulong)spanData.StartTimestamp.ToUnixTimeNanoseconds(),
EndTimeUnixNano = (ulong)spanData.EndTimestamp.ToUnixTimeNanoseconds(),
};
if (!ReferenceEquals(spanData.Attributes, EmptySpanDataAttributes))
{
otlpSpan.Attributes.AddRange(spanData.Attributes.Select(ToOtlpAttribute));
// TODO: get dropped count.
}
if (!ReferenceEquals(spanData.Events, EmptySpanDataEvents))
{
otlpSpan.Events.AddRange(spanData.Events.Select(ToOtlpEvent));
// TODO: get dropped count.
}
if (!ReferenceEquals(spanData.Links, EmptySpanDataLinks))
{
otlpSpan.Links.AddRange(spanData.Links.Select(ToOtlpLink));
// TODO: get dropped count.
}
return(otlpSpan);
}
internal static OtlpTrace.Span ToOtlpSpan(this Activity activity)
{
if (activity.IdFormat != ActivityIdFormat.W3C)
{
// Only ActivityIdFormat.W3C is supported, in principle this should never be
// hit under the OpenTelemetry SDK.
return(null);
}
// protobuf doesn't understand Span<T> yet: https://github.com/protocolbuffers/protobuf/issues/3431
Span <byte> traceIdBytes = stackalloc byte[16];
Span <byte> spanIdBytes = stackalloc byte[8];
activity.TraceId.CopyTo(traceIdBytes);
activity.SpanId.CopyTo(spanIdBytes);
var parentSpanIdString = ByteString.Empty;
if (activity.ParentSpanId != default)
{
Span <byte> parentSpanIdBytes = stackalloc byte[8];
activity.ParentSpanId.CopyTo(parentSpanIdBytes);
parentSpanIdString = ByteString.CopyFrom(parentSpanIdBytes.ToArray());
}
var startTimeUnixNano = activity.StartTimeUtc.ToUnixTimeNanoseconds();
var otlpSpan = new OtlpTrace.Span
{
Name = activity.DisplayName,
Kind = (OtlpTrace.Span.Types.SpanKind)(activity.Kind + 1), // TODO: there is an offset of 1 on the enum.
TraceId = ByteString.CopyFrom(traceIdBytes.ToArray()),
SpanId = ByteString.CopyFrom(spanIdBytes.ToArray()),
ParentSpanId = parentSpanIdString,
Status = ToOtlpStatus(activity.GetStatus()),
StartTimeUnixNano = (ulong)startTimeUnixNano,
EndTimeUnixNano = (ulong)(startTimeUnixNano + activity.Duration.ToNanoseconds()),
};
foreach (var kvp in activity.TagObjects)
{
var attributes = ToOtlpAttributes(kvp);
if (attributes != null &&
attributes.All(a => a.Key != SpanAttributeConstants.StatusCodeKey && a.Key != SpanAttributeConstants.StatusDescriptionKey))
{
otlpSpan.Attributes.AddRange(attributes);
}
}
otlpSpan.Events.AddRange(activity.Events.Select(ToOtlpEvent));
otlpSpan.Links.AddRange(activity.Links.Select(ToOtlpLink));
// Activity does not limit number of attributes, events, links, etc so drop counts are always zero.
return(otlpSpan);
}
internal static OtlpTrace.Span ToOtlpSpan(this Activity activity)
{
if (activity.IdFormat != ActivityIdFormat.W3C)
{
// Only ActivityIdFormat.W3C is supported, in principle this should never be
// hit under the OpenTelemetry SDK.
return(null);
}
// protobuf doesn't understand Span<T> yet: https://github.com/protocolbuffers/protobuf/issues/3431
Span <byte> traceIdBytes = stackalloc byte[16];
Span <byte> spanIdBytes = stackalloc byte[8];
activity.TraceId.CopyTo(traceIdBytes);
activity.SpanId.CopyTo(spanIdBytes);
var parentSpanIdString = ByteString.Empty;
if (activity.ParentSpanId != default)
{
Span <byte> parentSpanIdBytes = stackalloc byte[8];
activity.ParentSpanId.CopyTo(parentSpanIdBytes);
parentSpanIdString = ByteString.CopyFrom(parentSpanIdBytes.ToArray());
}
var startTimeUnixNano = activity.StartTimeUtc.ToUnixTimeNanoseconds();
var otlpSpan = new OtlpTrace.Span
{
Name = activity.DisplayName,
Kind = (OtlpTrace.Span.Types.SpanKind)(activity.Kind + 1), // TODO: there is an offset of 1 on the enum.
TraceId = ByteString.CopyFrom(traceIdBytes.ToArray()),
SpanId = ByteString.CopyFrom(spanIdBytes.ToArray()),
ParentSpanId = parentSpanIdString,
// TODO: Status is still pending, need to pursue OTEL spec change.
StartTimeUnixNano = (ulong)startTimeUnixNano,
EndTimeUnixNano = (ulong)(startTimeUnixNano + activity.Duration.ToNanoseconds()),
};
foreach (var kvp in activity.Tags)
{
// TODO: attempt to convert to supported types?
// TODO: enforce no duplicate keys?
// TODO: drop if Value is null?
// TODO: reverse?
var attrib = new OtlpCommon.AttributeKeyValue {
Key = kvp.Key, StringValue = kvp.Value
};
otlpSpan.Attributes.Add(attrib);
}
otlpSpan.Events.AddRange(activity.Events.Select(ToOtlpEvent));
otlpSpan.Links.AddRange(activity.Links.Select(ToOtlpLink));
// Activity does not limit number of attributes, events, links, etc so drop counts are always zero.
return(otlpSpan);
}