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opentelemetry-go/bridge/opencensus/config.go
David Ashpole 0f09b9b2d8
Add options to opencensus bridge, and install tracer instead of returning (#4567)
* Add options to opencensus bridge, and install tracer instead of returning

* add unit test

* update unit tests

* fix example

* import ordering

---------

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2023-09-29 08:07:06 -07:00

66 lines
1.9 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 opencensus // import "go.opentelemetry.io/otel/bridge/opencensus"
import (
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace"
)
const scopeName = "go.opentelemetry.io/otel/bridge/opencensus"
// newTraceConfig returns a config configured with options.
func newTraceConfig(options []TraceOption) traceConfig {
conf := traceConfig{tp: otel.GetTracerProvider()}
for _, o := range options {
conf = o.apply(conf)
}
return conf
}
type traceConfig struct {
tp trace.TracerProvider
}
// TraceOption applies a configuration option value to an OpenCensus bridge
// Tracer.
type TraceOption interface {
apply(traceConfig) traceConfig
}
// traceOptionFunc applies a set of options to a config.
type traceOptionFunc func(traceConfig) traceConfig
// apply returns a config with option(s) applied.
func (o traceOptionFunc) apply(conf traceConfig) traceConfig {
return o(conf)
}
// WithTracerProvider specifies a tracer provider to use for creating a tracer.
func WithTracerProvider(tp trace.TracerProvider) TraceOption {
return traceOptionFunc(func(conf traceConfig) traceConfig {
conf.tp = tp
return conf
})
}
type metricConfig struct{}
// MetricOption applies a configuration option value to an OpenCensus bridge
// MetricProducer.
type MetricOption interface {
apply(metricConfig) metricConfig
}