-
Notifications
You must be signed in to change notification settings - Fork 217
/
observability_service.go
97 lines (81 loc) · 2.71 KB
/
observability_service.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
/*
Copyright 2021 The CloudEvents Authors
SPDX-License-Identifier: Apache-2.0
*/
package client
import (
"context"
"go.opencensus.io/trace"
cloudevents "github.com/cloudevents/sdk-go/v2"
"github.com/cloudevents/sdk-go/v2/binding"
"github.com/cloudevents/sdk-go/v2/client"
"github.com/cloudevents/sdk-go/v2/observability"
"github.com/cloudevents/sdk-go/v2/protocol"
)
type opencensusObservabilityService struct{}
func (o opencensusObservabilityService) InboundContextDecorators() []func(context.Context, binding.Message) context.Context {
return []func(context.Context, binding.Message) context.Context{tracePropagatorContextDecorator}
}
func (o opencensusObservabilityService) RecordReceivedMalformedEvent(ctx context.Context, err error) {
ctx, r := NewReporter(ctx, reportReceive)
r.Error()
}
func (o opencensusObservabilityService) RecordCallingInvoker(ctx context.Context, event *cloudevents.Event) (context.Context, func(errOrResult error)) {
ctx, r := NewReporter(ctx, reportReceive)
return ctx, func(errOrResult error) {
if protocol.IsACK(errOrResult) {
r.OK()
} else {
r.Error()
}
}
}
func (o opencensusObservabilityService) RecordSendingEvent(ctx context.Context, event cloudevents.Event) (context.Context, func(errOrResult error)) {
ctx, r := NewReporter(ctx, reportSend)
ctx, span := trace.StartSpan(ctx, observability.ClientSpanName, trace.WithSpanKind(trace.SpanKindClient))
if span.IsRecordingEvents() {
span.AddAttributes(EventTraceAttributes(&event)...)
}
return ctx, func(errOrResult error) {
span.End()
if protocol.IsACK(errOrResult) {
r.OK()
} else {
r.Error()
}
}
}
func (o opencensusObservabilityService) RecordRequestEvent(ctx context.Context, event cloudevents.Event) (context.Context, func(errOrResult error, event *cloudevents.Event)) {
ctx, r := NewReporter(ctx, reportSend)
ctx, span := trace.StartSpan(ctx, observability.ClientSpanName, trace.WithSpanKind(trace.SpanKindClient))
if span.IsRecordingEvents() {
span.AddAttributes(EventTraceAttributes(&event)...)
}
return ctx, func(errOrResult error, event *cloudevents.Event) {
span.End()
if protocol.IsACK(errOrResult) {
r.OK()
} else {
r.Error()
}
}
}
func New() client.ObservabilityService {
return opencensusObservabilityService{}
}
func tracePropagatorContextDecorator(ctx context.Context, msg binding.Message) context.Context {
var messageCtx context.Context
if mctx, ok := msg.(binding.MessageContext); ok {
messageCtx = mctx.Context()
} else if mctx, ok := binding.UnwrapMessage(msg).(binding.MessageContext); ok {
messageCtx = mctx.Context()
}
if messageCtx == nil {
return ctx
}
span := trace.FromContext(messageCtx)
if span == nil {
return ctx
}
return trace.NewContext(ctx, span)
}