private void SerializeSpan(StreamWriter writer, Span span)
{
var serviceName = SerializerUtils.GetServiceNameOrDefault(span);
var endPoint = span.Endpoint ?? SerializerUtils.DefaultEndPoint;
writer.Write(openingBrace);
if (span.Annotations.Count != 0)
{
writer.WriteList(
SerializeAnnotation,
annotations,
span.Annotations,
endPoint,
serviceName
);
}
if (span.BinaryAnnotations.Count != 0)
{
writer.Write(comma);
writer.WriteList(
SerializeBinaryAnnotation,
binaryAnnotations,
span.BinaryAnnotations,
endPoint,
serviceName
);
}
writer.Write(comma);
writer.WriteField(debug, false);
writer.Write(comma);
writer.WriteField(id, NumberUtils.EncodeLongToLowerHexString(span.SpanState.SpanId));
writer.Write(comma);
writer.WriteField(name, span.Name ?? SerializerUtils.DefaultRpcMethodName);
writer.Write(comma);
var hexTraceIdHigh = TraceManager.Trace128Bits ? NumberUtils.EncodeLongToHexString(span.SpanState.TraceIdHigh) : "";
writer.WriteField(traceId,
hexTraceIdHigh
+ NumberUtils.EncodeLongToHexString(span.SpanState.TraceId));
if (span.SpanStarted.HasValue)
{
writer.Write(comma);
writer.WriteField(timestamp, span.SpanStarted.Value.ToUnixTimestamp());
}
if (span.Duration.HasValue && span.Duration.Value.TotalMilliseconds > 0)
{
writer.Write(comma);
writer.WriteField(duration, (long)(span.Duration.Value.TotalMilliseconds * 1000)); // microseconds
}
if (!span.IsRoot)
{
writer.Write(comma);
writer.WriteField(parentId, NumberUtils.EncodeLongToLowerHexString(span.SpanState.ParentSpanId.Value));
}
writer.Write(closingBrace);
}
/// <summary>
/// Convert this span object to its Thrift equivalent.
/// </summary>
/// <returns></returns>
public static Thrift.Span ConvertToThrift(Span span)
{
var thriftSpan = new Thrift.Span()
{
Id = span.SpanState.SpanId,
Trace_id_high = span.SpanState.TraceIdHigh,
Trace_id = span.SpanState.TraceId,
Name = span.Name ?? SerializerUtils.DefaultRpcMethodName,
Debug = false
};
if (!span.IsRoot)
{
thriftSpan.Parent_id = span.SpanState.ParentSpanId;
}
if (span.SpanStarted.HasValue)
{
thriftSpan.Timestamp = span.SpanStarted.Value.ToUnixTimestamp();
}
// Use default value if no information were recorded
var spanEndpoint = span.Endpoint ?? SerializerUtils.DefaultEndPoint;
var spanServiceName = SerializerUtils.GetServiceNameOrDefault(span);
var host = ConvertToThrift(spanEndpoint, spanServiceName);
var thriftAnnotations = span.Annotations.Select(ann => ConvertToThrift(ann, host)).ToList();
if (thriftAnnotations.Count > 0)
{
thriftSpan.Annotations = thriftAnnotations;
}
var thriftBinaryAnnotations = span.BinaryAnnotations.Select(ann => ConvertToThrift(ann, host)).ToList();
if (thriftBinaryAnnotations.Count > 0)
{
thriftSpan.Binary_annotations = thriftBinaryAnnotations;
}
if (span.Duration.HasValue && span.Duration.Value.TotalMilliseconds > 0)
{
thriftSpan.Duration = (long)(span.Duration.Value.TotalMilliseconds * 1000); // microseconds
}
return(thriftSpan);
}