mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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61 lines
2.2 KiB
Go
61 lines
2.2 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
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import (
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octrace "go.opencensus.io/trace"
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"go.opentelemetry.io/otel/bridge/opencensus/internal"
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"go.opentelemetry.io/otel/bridge/opencensus/internal/oc2otel"
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"go.opentelemetry.io/otel/bridge/opencensus/internal/otel2oc"
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"go.opentelemetry.io/otel/trace"
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)
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// NewTracer returns an implementation of the OpenCensus Tracer interface which
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// uses OpenTelemetry APIs. Using this implementation of Tracer "upgrades"
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// libraries that use OpenCensus to OpenTelemetry to facilitate a migration.
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//
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// Deprecated: Use InstallTraceBridge instead.
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func NewTracer(tracer trace.Tracer) octrace.Tracer {
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return internal.NewTracer(tracer)
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}
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// InstallTraceBridge installs the OpenCensus trace bridge, which overwrites
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// the global OpenCensus tracer implementation. Once the bridge is installed,
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// spans recorded using OpenCensus are redirected to the OpenTelemetry SDK.
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func InstallTraceBridge(opts ...TraceOption) {
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octrace.DefaultTracer = newTraceBridge(opts)
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}
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func newTraceBridge(opts []TraceOption) octrace.Tracer {
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cfg := newTraceConfig(opts)
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return internal.NewTracer(
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cfg.tp.Tracer(scopeName, trace.WithInstrumentationVersion(Version())),
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)
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}
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// OTelSpanContextToOC converts from an OpenTelemetry SpanContext to an
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// OpenCensus SpanContext, and handles any incompatibilities with the global
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// error handler.
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func OTelSpanContextToOC(sc trace.SpanContext) octrace.SpanContext {
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return otel2oc.SpanContext(sc)
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}
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// OCSpanContextToOTel converts from an OpenCensus SpanContext to an
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// OpenTelemetry SpanContext.
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func OCSpanContextToOTel(sc octrace.SpanContext) trace.SpanContext {
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return oc2otel.SpanContext(sc)
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}
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