61 lines
2 KiB
Go
61 lines
2 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package jaeger
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import (
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"github.com/opentracing/opentracing-go"
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)
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// TODO this file should not be needed after TChannel PR.
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type formatKey int
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// SpanContextFormat is a constant used as OpenTracing Format.
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// Requires *SpanContext as carrier.
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// This format is intended for interop with TChannel or other Zipkin-like tracers.
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const SpanContextFormat formatKey = iota
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type jaegerTraceContextPropagator struct {
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tracer *Tracer
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}
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func (p *jaegerTraceContextPropagator) Inject(
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ctx SpanContext,
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abstractCarrier interface{},
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) error {
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carrier, ok := abstractCarrier.(*SpanContext)
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if !ok {
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return opentracing.ErrInvalidCarrier
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}
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carrier.CopyFrom(&ctx)
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return nil
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}
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func (p *jaegerTraceContextPropagator) Extract(abstractCarrier interface{}) (SpanContext, error) {
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carrier, ok := abstractCarrier.(*SpanContext)
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if !ok {
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return emptyContext, opentracing.ErrInvalidCarrier
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}
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ctx := new(SpanContext)
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ctx.CopyFrom(carrier)
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return *ctx, nil
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}
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