mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-16 10:34:06 -08:00
0393b188c9
* Trace remote read Signed-off-by: vas <vasily.sliouniaev@jet.com> * Use jaeger Signed-off-by: vas <vasily.sliouniaev@jet.com>
78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
// Copyright (c) 2017 Uber Technologies, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package jaeger
|
|
|
|
import (
|
|
"github.com/opentracing/opentracing-go"
|
|
)
|
|
|
|
// ZipkinSpanFormat is an OpenTracing carrier format constant
|
|
const ZipkinSpanFormat = "zipkin-span-format"
|
|
|
|
// ExtractableZipkinSpan is a type of Carrier used for integration with Zipkin-aware
|
|
// RPC frameworks (like TChannel). It does not support baggage, only trace IDs.
|
|
type ExtractableZipkinSpan interface {
|
|
TraceID() uint64
|
|
SpanID() uint64
|
|
ParentID() uint64
|
|
Flags() byte
|
|
}
|
|
|
|
// InjectableZipkinSpan is a type of Carrier used for integration with Zipkin-aware
|
|
// RPC frameworks (like TChannel). It does not support baggage, only trace IDs.
|
|
type InjectableZipkinSpan interface {
|
|
SetTraceID(traceID uint64)
|
|
SetSpanID(spanID uint64)
|
|
SetParentID(parentID uint64)
|
|
SetFlags(flags byte)
|
|
}
|
|
|
|
type zipkinPropagator struct {
|
|
tracer *Tracer
|
|
}
|
|
|
|
func (p *zipkinPropagator) Inject(
|
|
ctx SpanContext,
|
|
abstractCarrier interface{},
|
|
) error {
|
|
carrier, ok := abstractCarrier.(InjectableZipkinSpan)
|
|
if !ok {
|
|
return opentracing.ErrInvalidCarrier
|
|
}
|
|
|
|
carrier.SetTraceID(ctx.TraceID().Low) // TODO this cannot work with 128bit IDs
|
|
carrier.SetSpanID(uint64(ctx.SpanID()))
|
|
carrier.SetParentID(uint64(ctx.ParentID()))
|
|
carrier.SetFlags(ctx.samplingState.flags())
|
|
return nil
|
|
}
|
|
|
|
func (p *zipkinPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
|
|
carrier, ok := abstractCarrier.(ExtractableZipkinSpan)
|
|
if !ok {
|
|
return emptyContext, opentracing.ErrInvalidCarrier
|
|
}
|
|
if carrier.TraceID() == 0 {
|
|
return emptyContext, opentracing.ErrSpanContextNotFound
|
|
}
|
|
var ctx SpanContext
|
|
ctx.traceID.Low = carrier.TraceID()
|
|
ctx.spanID = SpanID(carrier.SpanID())
|
|
ctx.parentID = SpanID(carrier.ParentID())
|
|
ctx.samplingState = &samplingState{}
|
|
ctx.samplingState.setFlags(carrier.Flags())
|
|
return ctx, nil
|
|
}
|