1
0
mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-22 20:06:07 +02:00
opentelemetry-go/bridge/opencensus/utils/utils.go
David Ashpole bbc9465ddb
Add opencensus binary propagation to bridge (#1334)
* add opencensus binary propagation bridge

* Update bridge/opencensus/binary/binary.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Update bridge/opencensus/doc.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* address comments

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2020-11-16 10:35:25 -08:00

58 lines
1.8 KiB
Go

// Copyright The OpenTelemetry Authors
//
// 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 utils // import "go.opentelemetry.io/otel/bridge/opencensus/utils"
import (
"fmt"
octrace "go.opencensus.io/trace"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace"
)
// OTelSpanContextToOC converts from an OpenTelemetry SpanContext to an
// OpenCensus SpanContext, and handles any incompatibilities with the global
// error handler.
func OTelSpanContextToOC(sc trace.SpanContext) octrace.SpanContext {
if sc.IsDebug() || sc.IsDeferred() {
otel.Handle(fmt.Errorf("ignoring OpenTelemetry Debug or Deferred trace flags for span %q because they are not supported by OpenCensus", sc.SpanID))
}
var to octrace.TraceOptions
if sc.IsSampled() {
// OpenCensus doesn't expose functions to directly set sampled
to = 0x1
}
return octrace.SpanContext{
TraceID: octrace.TraceID(sc.TraceID),
SpanID: octrace.SpanID(sc.SpanID),
TraceOptions: to,
}
}
// OCSpanContextToOTel converts from an OpenCensus SpanContext to an
// OpenTelemetry SpanContext.
func OCSpanContextToOTel(sc octrace.SpanContext) trace.SpanContext {
var traceFlags byte
if sc.IsSampled() {
traceFlags = trace.FlagsSampled
}
return trace.SpanContext{
TraceID: trace.TraceID(sc.TraceID),
SpanID: trace.SpanID(sc.SpanID),
TraceFlags: traceFlags,
}
}