84 lines
2.1 KiB
Go
84 lines
2.1 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 sdkapi // import "go.opentelemetry.io/otel/sdk/metric/sdkapi"
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import (
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"context"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/metric/instrument"
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"go.opentelemetry.io/otel/sdk/metric/number"
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) // import (
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// "context"
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// "go.opentelemetry.io/otel/attribute"
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// "go.opentelemetry.io/otel/sdk/metric/number"
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// )
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type noopInstrument struct {
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descriptor Descriptor
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}
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type noopSyncInstrument struct {
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noopInstrument
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instrument.Synchronous
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}
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type noopAsyncInstrument struct {
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noopInstrument
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instrument.Asynchronous
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}
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var _ SyncImpl = noopSyncInstrument{}
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var _ AsyncImpl = noopAsyncInstrument{}
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// NewNoopSyncInstrument returns a No-op implementation of the
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// synchronous instrument interface.
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func NewNoopSyncInstrument() SyncImpl {
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return noopSyncInstrument{
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noopInstrument: noopInstrument{
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descriptor: Descriptor{
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instrumentKind: CounterInstrumentKind,
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},
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},
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}
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}
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// NewNoopAsyncInstrument returns a No-op implementation of the
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// asynchronous instrument interface.
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func NewNoopAsyncInstrument() AsyncImpl {
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return noopAsyncInstrument{
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noopInstrument: noopInstrument{
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descriptor: Descriptor{
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instrumentKind: CounterObserverInstrumentKind,
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},
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},
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}
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}
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func (noopInstrument) Implementation() interface{} {
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return nil
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}
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func (n noopInstrument) Descriptor() Descriptor {
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return n.descriptor
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}
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func (noopSyncInstrument) RecordOne(context.Context, number.Number, []attribute.KeyValue) {
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}
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func (noopAsyncInstrument) ObserveOne(context.Context, number.Number, []attribute.KeyValue) {
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}
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