-
Notifications
You must be signed in to change notification settings - Fork 3
/
tracer.go
99 lines (77 loc) · 2.52 KB
/
tracer.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
package startup_tracing_pg
import (
"context"
"database/sql"
"regexp"
"strings"
st "github.com/flachnetz/startup/v2/startup_tracing"
"github.com/jackc/pgx/v5"
"github.com/opentracing/opentracing-go"
"github.com/opentracing/opentracing-go/ext"
)
var reSpace = regexp.MustCompile(`\s+`)
type tracer struct {
ServiceName string
SkipFrameworkMethod SkipFunc
}
func (t *tracer) TraceQueryStart(ctx context.Context, conn *pgx.Conn, data pgx.TraceQueryStartData) context.Context {
cleanQuery := cleanQuery(data.SQL)
span, ctx := t.startSpan(ctx, cleanQuery)
span.SetTag("sql.query", cleanQuery)
return ctx
}
func (t *tracer) TraceQueryEnd(ctx context.Context, conn *pgx.Conn, data pgx.TraceQueryEndData) {
span := t.spanOf(ctx)
if data.Err != nil && data.Err != sql.ErrNoRows {
span.SetTag("error", data.Err.Error())
}
span.Finish()
}
func (t *tracer) TracePrepareStart(ctx context.Context, conn *pgx.Conn, data pgx.TracePrepareStartData) context.Context {
cleanQuery := cleanQuery(data.SQL)
span, ctx := t.startSpan(ctx, cleanQuery)
span.SetTag("sql.query", cleanQuery)
span.SetTag("sql.prepare", true)
return ctx
}
func (t *tracer) TracePrepareEnd(ctx context.Context, conn *pgx.Conn, data pgx.TracePrepareEndData) {
t.spanOf(ctx).Finish()
}
func (t *tracer) TraceConnectStart(ctx context.Context, data pgx.TraceConnectStartData) context.Context {
_, ctx = t.startSpan(ctx, "CONNECT")
return ctx
}
func (t *tracer) TraceConnectEnd(ctx context.Context, data pgx.TraceConnectEndData) {
t.spanOf(ctx).Finish()
}
func (t *tracer) TransactionStart(ctx context.Context) context.Context {
tag := findOutsideCaller(t.SkipFrameworkMethod)
if tag == "" {
tag = "transaction"
}
_, ctx = t.startSpan(ctx, "tx:"+tag)
return ctx
}
func (t *tracer) TransactionEnd(ctx context.Context) {
t.spanOf(ctx).Finish()
}
func (t *tracer) startSpan(ctx context.Context, res string) (opentracing.Span, context.Context) {
var parentContext opentracing.SpanContext
parentSpan := st.CurrentSpanFromContext(ctx)
if parentSpan != nil {
parentContext = parentSpan.Context()
}
span := opentracing.GlobalTracer().StartSpan(t.ServiceName,
ext.SpanKindRPCClient,
opentracing.ChildOf(parentContext),
)
span.SetTag("dd.service", t.ServiceName)
span.SetTag("dd.resource", res)
return span, opentracing.ContextWithSpan(ctx, span)
}
func (t *tracer) spanOf(ctx context.Context) opentracing.Span {
return st.CurrentSpanFromContext(ctx)
}
func cleanQuery(query string) string {
return strings.TrimSpace(reSpace.ReplaceAllString(query, " "))
}