// RecordSpan converts a RawSpan into the Appdash representation of a span
// and records it to the underlying collector.
func (r *Recorder) RecordSpan(sp basictracer.RawSpan) {
if !sp.Sampled {
return
}
spanID := appdash.SpanID{
Span: appdash.ID(uint64(sp.SpanID)),
Trace: appdash.ID(uint64(sp.TraceID)),
Parent: appdash.ID(uint64(sp.ParentSpanID)),
}
r.collectEvent(spanID, appdash.SpanName(sp.Operation))
// Record all of the logs. Payloads are thrown out.
for _, log := range sp.Logs {
r.collectEvent(spanID, appdash.LogWithTimestamp(log.Event, log.Timestamp))
}
for key, value := range sp.Tags {
val := []byte(fmt.Sprintf("%+v", value))
r.collectAnnotation(spanID, appdash.Annotation{Key: key, Value: val})
}
for key, val := range sp.Baggage {
r.collectAnnotation(spanID, appdash.Annotation{Key: key, Value: []byte(val)})
}
// Add the duration to the start time to get an approximate end time.
approxEndTime := sp.Start.Add(sp.Duration)
r.collectEvent(spanID, appdash.Timespan{S: sp.Start, E: approxEndTime})
}
func TestOpentracingRecorder(t *testing.T) {
var packets []*wire.CollectPacket
mc := collectorFunc(func(span appdash.SpanID, anns ...appdash.Annotation) error {
packets = append(packets, newCollectPacket(span, anns))
return nil
})
baggageKey := "somelongval"
baggageVal := "val"
opName := "testOperation"
r := NewRecorder(mc, Options{})
raw := basictracer.RawSpan{
Context: basictracer.Context{
TraceID: 1,
SpanID: 2,
ParentSpanID: 3,
Sampled: true,
},
Tags: map[string]interface{}{
"tag": 1,
},
Baggage: map[string]string{
baggageKey: baggageVal,
},
Operation: opName,
Duration: time.Duration(1),
}
unsampledRaw := basictracer.RawSpan{
Context: basictracer.Context{
TraceID: 1,
SpanID: 2,
ParentSpanID: 3,
Sampled: false,
},
}
r.RecordSpan(raw)
r.RecordSpan(unsampledRaw)
tsAnnotations := marshalEvent(appdash.Timespan{raw.Start, raw.Start.Add(raw.Duration)})
want := []*wire.CollectPacket{
newCollectPacket(appdash.SpanID{1, 2, 3}, appdash.Annotations{{"tag", []byte("1")}}),
newCollectPacket(appdash.SpanID{1, 2, 3}, appdash.Annotations{{baggageKey, []byte(baggageVal)}}),
newCollectPacket(appdash.SpanID{1, 2, 3}, marshalEvent(appdash.SpanName(opName))),
newCollectPacket(appdash.SpanID{1, 2, 3}, tsAnnotations),
}
sort.Sort(byTraceID(packets))
sort.Sort(byTraceID(want))
if !reflect.DeepEqual(packets, want) {
t.Errorf("Got packets %v, want %v", packets, want)
}
}