144 lines
5.1 KiB
Go
144 lines
5.1 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 metric // import "go.opentelemetry.io/otel/metric"
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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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)
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// NewNoopMeterProvider creates a MeterProvider that does not record any metrics.
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func NewNoopMeterProvider() MeterProvider {
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return noopMeterProvider{}
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}
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type noopMeterProvider struct{}
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func (noopMeterProvider) Meter(string, ...MeterOption) Meter {
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return noopMeter{}
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}
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// NewNoopMeter creates a Meter that does not record any metrics.
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func NewNoopMeter() Meter {
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return noopMeter{}
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}
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type noopMeter struct{}
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func (noopMeter) Int64Counter(string, ...instrument.Int64Option) (instrument.Int64Counter, error) {
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return nonrecordingSyncInt64Instrument{}, nil
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}
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func (noopMeter) Int64UpDownCounter(string, ...instrument.Int64Option) (instrument.Int64UpDownCounter, error) {
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return nonrecordingSyncInt64Instrument{}, nil
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}
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func (noopMeter) Int64Histogram(string, ...instrument.Int64Option) (instrument.Int64Histogram, error) {
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return nonrecordingSyncInt64Instrument{}, nil
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}
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func (noopMeter) Int64ObservableCounter(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableCounter, error) {
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return nonrecordingAsyncInt64Instrument{}, nil
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}
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func (noopMeter) Int64ObservableUpDownCounter(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableUpDownCounter, error) {
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return nonrecordingAsyncInt64Instrument{}, nil
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}
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func (noopMeter) Int64ObservableGauge(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableGauge, error) {
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return nonrecordingAsyncInt64Instrument{}, nil
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}
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func (noopMeter) Float64Counter(string, ...instrument.Float64Option) (instrument.Float64Counter, error) {
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return nonrecordingSyncFloat64Instrument{}, nil
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}
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func (noopMeter) Float64UpDownCounter(string, ...instrument.Float64Option) (instrument.Float64UpDownCounter, error) {
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return nonrecordingSyncFloat64Instrument{}, nil
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}
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func (noopMeter) Float64Histogram(string, ...instrument.Float64Option) (instrument.Float64Histogram, error) {
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return nonrecordingSyncFloat64Instrument{}, nil
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}
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func (noopMeter) Float64ObservableCounter(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableCounter, error) {
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return nonrecordingAsyncFloat64Instrument{}, nil
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}
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func (noopMeter) Float64ObservableUpDownCounter(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableUpDownCounter, error) {
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return nonrecordingAsyncFloat64Instrument{}, nil
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}
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func (noopMeter) Float64ObservableGauge(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableGauge, error) {
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return nonrecordingAsyncFloat64Instrument{}, nil
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}
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// RegisterCallback creates a register callback that does not record any metrics.
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func (noopMeter) RegisterCallback(Callback, ...instrument.Asynchronous) (Registration, error) {
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return noopReg{}, nil
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}
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type noopReg struct{}
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func (noopReg) Unregister() error { return nil }
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type nonrecordingAsyncFloat64Instrument struct {
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instrument.Float64Observable
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}
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var (
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_ instrument.Float64ObservableCounter = nonrecordingAsyncFloat64Instrument{}
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_ instrument.Float64ObservableUpDownCounter = nonrecordingAsyncFloat64Instrument{}
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_ instrument.Float64ObservableGauge = nonrecordingAsyncFloat64Instrument{}
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)
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type nonrecordingAsyncInt64Instrument struct {
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instrument.Int64Observable
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}
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var (
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_ instrument.Int64ObservableCounter = nonrecordingAsyncInt64Instrument{}
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_ instrument.Int64ObservableUpDownCounter = nonrecordingAsyncInt64Instrument{}
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_ instrument.Int64ObservableGauge = nonrecordingAsyncInt64Instrument{}
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)
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type nonrecordingSyncFloat64Instrument struct {
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instrument.Synchronous
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}
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var (
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_ instrument.Float64Counter = nonrecordingSyncFloat64Instrument{}
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_ instrument.Float64UpDownCounter = nonrecordingSyncFloat64Instrument{}
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_ instrument.Float64Histogram = nonrecordingSyncFloat64Instrument{}
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)
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func (nonrecordingSyncFloat64Instrument) Add(context.Context, float64, ...attribute.KeyValue) {}
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func (nonrecordingSyncFloat64Instrument) Record(context.Context, float64, ...attribute.KeyValue) {}
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type nonrecordingSyncInt64Instrument struct {
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instrument.Synchronous
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}
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var (
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_ instrument.Int64Counter = nonrecordingSyncInt64Instrument{}
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_ instrument.Int64UpDownCounter = nonrecordingSyncInt64Instrument{}
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_ instrument.Int64Histogram = nonrecordingSyncInt64Instrument{}
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)
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func (nonrecordingSyncInt64Instrument) Add(context.Context, int64, ...attribute.KeyValue) {}
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func (nonrecordingSyncInt64Instrument) Record(context.Context, int64, ...attribute.KeyValue) {}
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