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tracing.go
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tracing.go
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package tracing
import (
"context"
"net/http"
sdk_trace "go.opentelemetry.io/otel/sdk/trace"
api_trace "go.opentelemetry.io/otel/trace"
)
type Tracer interface {
NewSpan(ctx context.Context, caller string) (context.Context, *Span)
NewClientSpan(ctx context.Context, caller string) (context.Context, *Span)
NewServerSpan(ctx context.Context, caller string) (context.Context, *Span)
NewClientInterceptorSpan(ctx context.Context, name string) (context.Context, *Span)
NewServerInterceptorSpan(ctx context.Context, name string) (context.Context, *Span)
NewSpanHTTP(r *http.Request, caller string) (*http.Request, *Span)
Sampler() sdk_trace.Sampler
}
type Config interface {
NewTracer() error
}
var T Tracer
func Sampler() sdk_trace.Sampler {
if T == nil {
return sdk_trace.NeverSample()
}
return T.Sampler()
}
func NewSpan(ctx context.Context) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewSpan(ctx, GetCaller())
}
func NewNamedSpan(ctx context.Context, name string) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewSpan(ctx, name)
}
func NewClientSpan(ctx context.Context) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewClientSpan(ctx, GetCaller())
}
func NewServerSpan(ctx context.Context) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewServerSpan(ctx, GetCaller())
}
func NewClientInterceptorSpan(ctx context.Context) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewClientInterceptorSpan(ctx, GetCaller())
}
func NewServerInterceptorSpan(ctx context.Context) (context.Context, *Span) {
if T == nil {
return ctx, CreateSpan(nil)
}
return T.NewServerInterceptorSpan(ctx, GetCaller())
}
func NewSpanHTTP(r *http.Request) (*http.Request, *Span) {
if T == nil {
return r, CreateSpan(nil)
}
return T.NewSpanHTTP(r, GetCaller())
}
func TraceIDFromCtx(ctx context.Context) string {
return api_trace.SpanFromContext(ctx).SpanContext().TraceID().String()
}