mirror of
https://github.com/open-telemetry/opentelemetry-go.git
synced 2024-12-12 10:04:29 +02:00
1e1cc901a5
* Add trace/embedded * Update trace impl to use trace/embedded * Add noop pkg to replace no-op impl in trace pkg * Use trace/embedded in global impl * Use trace/embedded in SDK impl * Update opencensus bridge * Update opentracing bridge * Add changes to changelog * Update trace/doc.go Co-authored-by: David Ashpole <dashpole@google.com> --------- Co-authored-by: David Ashpole <dashpole@google.com>
75 lines
2.1 KiB
Go
75 lines
2.1 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 opentracing // import "go.opentelemetry.io/otel/bridge/opentracing"
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"go.opentelemetry.io/otel/trace"
|
|
"go.opentelemetry.io/otel/trace/embedded"
|
|
)
|
|
|
|
// TracerProvider is an OpenTelemetry TracerProvider that wraps an OpenTracing
|
|
// Tracer.
|
|
type TracerProvider struct {
|
|
embedded.TracerProvider
|
|
|
|
bridge *BridgeTracer
|
|
provider trace.TracerProvider
|
|
|
|
tracers map[wrappedTracerKey]*WrapperTracer
|
|
mtx sync.Mutex
|
|
}
|
|
|
|
var _ trace.TracerProvider = (*TracerProvider)(nil)
|
|
|
|
// NewTracerProvider returns a new TracerProvider that creates new instances of
|
|
// WrapperTracer from the given TracerProvider.
|
|
func NewTracerProvider(bridge *BridgeTracer, provider trace.TracerProvider) *TracerProvider {
|
|
return &TracerProvider{
|
|
bridge: bridge,
|
|
provider: provider,
|
|
|
|
tracers: make(map[wrappedTracerKey]*WrapperTracer),
|
|
}
|
|
}
|
|
|
|
type wrappedTracerKey struct {
|
|
name string
|
|
version string
|
|
}
|
|
|
|
// Tracer creates a WrappedTracer that wraps the OpenTelemetry tracer for each call to
|
|
// Tracer(). Repeated calls to Tracer() with the same configuration will look up and
|
|
// return an existing instance of WrapperTracer.
|
|
func (p *TracerProvider) Tracer(name string, opts ...trace.TracerOption) trace.Tracer {
|
|
p.mtx.Lock()
|
|
defer p.mtx.Unlock()
|
|
|
|
c := trace.NewTracerConfig(opts...)
|
|
key := wrappedTracerKey{
|
|
name: name,
|
|
version: c.InstrumentationVersion(),
|
|
}
|
|
|
|
if t, ok := p.tracers[key]; ok {
|
|
return t
|
|
}
|
|
|
|
wrapper := NewWrapperTracer(p.bridge, p.provider.Tracer(name, opts...))
|
|
p.tracers[key] = wrapper
|
|
return wrapper
|
|
}
|