def _translate_span(self, span: ReadableSpan) -> TCollector.Span:
ctx = span.get_span_context()
trace_id = ctx.trace_id
span_id = ctx.span_id
start_time_us = _nsec_to_usec_round(span.start_time)
duration_us = _nsec_to_usec_round(span.end_time - span.start_time)
parent_id = span.parent.span_id if span.parent else 0
tags = self._extract_tags(span)
refs = self._extract_refs(span)
logs = self._extract_logs(span)
flags = int(ctx.trace_flags)
jaeger_span = TCollector.Span(
traceIdHigh=_get_trace_id_high(trace_id),
traceIdLow=_get_trace_id_low(trace_id),
spanId=_convert_int_to_i64(span_id),
operationName=span.name,
startTime=start_time_us,
duration=duration_us,
tags=tags,
logs=logs,
references=refs,
flags=flags,
parentSpanId=_convert_int_to_i64(parent_id),
)
return jaeger_span
def _extract_refs(self,
span: Span) -> Optional[Sequence[TCollector.SpanRef]]:
if not span.links:
return None
refs = []
for link in span.links:
trace_id = link.context.trace_id
span_id = link.context.span_id
refs.append(
TCollector.SpanRef(
refType=TCollector.SpanRefType.FOLLOWS_FROM,
traceIdHigh=_get_trace_id_high(trace_id),
traceIdLow=_get_trace_id_low(trace_id),
spanId=_convert_int_to_i64(span_id),
))
return refs
def _get_trace_id_high(trace_id):
return _convert_int_to_i64((trace_id >> 64) & 0xFFFFFFFFFFFFFFFF)
def _get_trace_id_low(trace_id):
return _convert_int_to_i64(trace_id & 0xFFFFFFFFFFFFFFFF)
