1
0
mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-16 10:19:23 +02:00
opentelemetry-go/api/trace/never_sampler.go
rghetia 15bfc5bb12
Namespace import path under "/otel" (#274)
Also fixes example module paths so that they use the vanity URL instead
of the github URL.

[Closes #184]
2019-11-01 11:40:29 -07:00

53 lines
1.4 KiB
Go

// Copyright 2019, 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 trace
import (
"go.opentelemetry.io/otel/api/core"
)
const (
neverSamplerDescription = "NeverSampleSampler"
)
var neverSampledecision = Decision{Sampled: false}
type neverSampleSampler struct{}
// ShouldSample implements Sampler interface.
// It always returns a Decision with Sampled value set to false
// and with Attributes set to an empty slice.
func (ns neverSampleSampler) ShouldSample(
_ core.SpanContext,
_ bool,
_ core.TraceID,
_ uint64,
_ string,
) Decision {
return neverSampledecision
}
// Description implements Sampler interface.
// It returns the description of this sampler.
func (ns neverSampleSampler) Description() string {
return neverSamplerDescription
}
var _ Sampler = neverSampleSampler{}
func NeverSampleSampler() Sampler {
return neverSampleSampler{}
}