-
Notifications
You must be signed in to change notification settings - Fork 3
/
collector.go
131 lines (111 loc) · 2.85 KB
/
collector.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
package tempohandler
import (
"github.com/google/uuid"
"go.opentelemetry.io/collector/pdata/ptrace"
"github.com/go-faster/oteldb/internal/otelstorage"
"github.com/go-faster/oteldb/internal/tempoapi"
"github.com/go-faster/oteldb/internal/tracestorage"
)
type metadataCollector struct {
limit int
metadatas map[otelstorage.TraceID]tempoapi.TraceSearchMetadata
}
func (b *metadataCollector) init() {
if b.metadatas == nil {
b.metadatas = make(map[otelstorage.TraceID]tempoapi.TraceSearchMetadata)
}
}
func (b *metadataCollector) AddSpan(span tracestorage.Span) error {
b.init()
traceID := span.TraceID
m, ok := b.metadatas[traceID]
if !ok {
if len(b.metadatas) >= b.limit {
return nil
}
m = tempoapi.TraceSearchMetadata{
TraceID: traceID.Hex(),
SpanSet: tempoapi.NewOptTempoSpanSet(tempoapi.TempoSpanSet{}),
}
}
ss := &m.SpanSet
if span.ParentSpanID.IsEmpty() {
span.FillTraceMetadata(&m)
}
ss.Value.Spans = append(ss.Value.Spans, span.AsTempoSpan())
// Put modified struct back to map.
b.metadatas[traceID] = m
return nil
}
func (b *metadataCollector) Result() (r []tempoapi.TraceSearchMetadata) {
r = make([]tempoapi.TraceSearchMetadata, 0, len(b.metadatas))
for _, v := range b.metadatas {
// Skip trace, if we have not got parent span yet.
if v.StartTimeUnixNano.IsZero() {
continue
}
r = append(r, v)
}
return r
}
type spanKey struct {
batchID uuid.UUID
scopeName string
scopeVersion string
}
type batchCollector struct {
traces ptrace.Traces
resSpans map[uuid.UUID]ptrace.ResourceSpans
scopeSpans map[spanKey]ptrace.SpanSlice
}
func (b *batchCollector) init() {
var zeroTraces ptrace.Traces
if b.traces == zeroTraces {
b.traces = ptrace.NewTraces()
}
if b.resSpans == nil {
b.resSpans = make(map[uuid.UUID]ptrace.ResourceSpans)
}
if b.scopeSpans == nil {
b.scopeSpans = make(map[spanKey]ptrace.SpanSlice)
}
}
func (b *batchCollector) getSpanSlice(s tracestorage.Span) ptrace.SpanSlice {
b.init()
k := spanKey{
batchID: s.BatchID,
scopeName: s.ScopeName,
scopeVersion: s.ScopeVersion,
}
ss, ok := b.scopeSpans[k]
if ok {
return ss
}
resSpan, ok := b.resSpans[s.BatchID]
if !ok {
resSpan = b.traces.ResourceSpans().AppendEmpty()
b.resSpans[s.BatchID] = resSpan
}
res := resSpan.Resource()
s.ResourceAttrs.CopyTo(res.Attributes())
scopeSpan := resSpan.ScopeSpans().AppendEmpty()
scope := scopeSpan.Scope()
scope.SetName(s.ScopeName)
scope.SetVersion(s.ScopeVersion)
s.ScopeAttrs.CopyTo(scope.Attributes())
ss = scopeSpan.Spans()
b.scopeSpans[k] = ss
return ss
}
func (b *batchCollector) AddSpan(span tracestorage.Span) error {
s := b.getSpanSlice(span).AppendEmpty()
span.FillOTELSpan(s)
return nil
}
func (b *batchCollector) Result() ptrace.Traces {
var zeroTraces ptrace.Traces
if b.traces == zeroTraces {
b.traces = ptrace.NewTraces()
}
return b.traces
}