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Revert "Move metric No-Op to
metric/noop (#3893)"
This reverts commit 3c75a44.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| // 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 metric // import "go.opentelemetry.io/otel/metric" | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
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| "go.opentelemetry.io/otel/attribute" | ||
| "go.opentelemetry.io/otel/metric/instrument" | ||
| ) | ||
|
|
||
| // NewNoopMeterProvider creates a MeterProvider that does not record any metrics. | ||
| func NewNoopMeterProvider() MeterProvider { | ||
| return noopMeterProvider{} | ||
| } | ||
|
|
||
| type noopMeterProvider struct{} | ||
|
|
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| func (noopMeterProvider) Meter(string, ...MeterOption) Meter { | ||
| return noopMeter{} | ||
| } | ||
|
|
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| // NewNoopMeter creates a Meter that does not record any metrics. | ||
| func NewNoopMeter() Meter { | ||
| return noopMeter{} | ||
| } | ||
|
|
||
| type noopMeter struct{} | ||
|
|
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| func (noopMeter) Int64Counter(string, ...instrument.Int64CounterOption) (instrument.Int64Counter, error) { | ||
| return nonrecordingSyncInt64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Int64UpDownCounter(string, ...instrument.Int64UpDownCounterOption) (instrument.Int64UpDownCounter, error) { | ||
| return nonrecordingSyncInt64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Int64Histogram(string, ...instrument.Int64HistogramOption) (instrument.Int64Histogram, error) { | ||
| return nonrecordingSyncInt64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Int64ObservableCounter(string, ...instrument.Int64ObservableCounterOption) (instrument.Int64ObservableCounter, error) { | ||
| return nonrecordingAsyncInt64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Int64ObservableUpDownCounter(string, ...instrument.Int64ObservableUpDownCounterOption) (instrument.Int64ObservableUpDownCounter, error) { | ||
| return nonrecordingAsyncInt64Instrument{}, nil | ||
| } | ||
|
|
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| func (noopMeter) Int64ObservableGauge(string, ...instrument.Int64ObservableGaugeOption) (instrument.Int64ObservableGauge, error) { | ||
| return nonrecordingAsyncInt64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64Counter(string, ...instrument.Float64CounterOption) (instrument.Float64Counter, error) { | ||
| return nonrecordingSyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64UpDownCounter(string, ...instrument.Float64UpDownCounterOption) (instrument.Float64UpDownCounter, error) { | ||
| return nonrecordingSyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64Histogram(string, ...instrument.Float64HistogramOption) (instrument.Float64Histogram, error) { | ||
| return nonrecordingSyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64ObservableCounter(string, ...instrument.Float64ObservableCounterOption) (instrument.Float64ObservableCounter, error) { | ||
| return nonrecordingAsyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64ObservableUpDownCounter(string, ...instrument.Float64ObservableUpDownCounterOption) (instrument.Float64ObservableUpDownCounter, error) { | ||
| return nonrecordingAsyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| func (noopMeter) Float64ObservableGauge(string, ...instrument.Float64ObservableGaugeOption) (instrument.Float64ObservableGauge, error) { | ||
| return nonrecordingAsyncFloat64Instrument{}, nil | ||
| } | ||
|
|
||
| // RegisterCallback creates a register callback that does not record any metrics. | ||
| func (noopMeter) RegisterCallback(Callback, ...instrument.Observable) (Registration, error) { | ||
| return noopReg{}, nil | ||
| } | ||
|
|
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| type noopReg struct{} | ||
|
|
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| func (noopReg) Unregister() error { return nil } | ||
|
|
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| type nonrecordingAsyncFloat64Instrument struct { | ||
| instrument.Float64Observable | ||
| } | ||
|
|
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| var ( | ||
| _ instrument.Float64ObservableCounter = nonrecordingAsyncFloat64Instrument{} | ||
| _ instrument.Float64ObservableUpDownCounter = nonrecordingAsyncFloat64Instrument{} | ||
| _ instrument.Float64ObservableGauge = nonrecordingAsyncFloat64Instrument{} | ||
| ) | ||
|
|
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| type nonrecordingAsyncInt64Instrument struct { | ||
| instrument.Int64Observable | ||
| } | ||
|
|
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| var ( | ||
| _ instrument.Int64ObservableCounter = nonrecordingAsyncInt64Instrument{} | ||
| _ instrument.Int64ObservableUpDownCounter = nonrecordingAsyncInt64Instrument{} | ||
| _ instrument.Int64ObservableGauge = nonrecordingAsyncInt64Instrument{} | ||
| ) | ||
|
|
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| type nonrecordingSyncFloat64Instrument struct{} | ||
|
|
||
| var ( | ||
| _ instrument.Float64Counter = nonrecordingSyncFloat64Instrument{} | ||
| _ instrument.Float64UpDownCounter = nonrecordingSyncFloat64Instrument{} | ||
| _ instrument.Float64Histogram = nonrecordingSyncFloat64Instrument{} | ||
| ) | ||
|
|
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| func (nonrecordingSyncFloat64Instrument) Add(context.Context, float64, ...attribute.KeyValue) {} | ||
| func (nonrecordingSyncFloat64Instrument) Record(context.Context, float64, ...attribute.KeyValue) {} | ||
|
|
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| type nonrecordingSyncInt64Instrument struct{} | ||
|
|
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| var ( | ||
| _ instrument.Int64Counter = nonrecordingSyncInt64Instrument{} | ||
| _ instrument.Int64UpDownCounter = nonrecordingSyncInt64Instrument{} | ||
| _ instrument.Int64Histogram = nonrecordingSyncInt64Instrument{} | ||
| ) | ||
|
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| func (nonrecordingSyncInt64Instrument) Add(context.Context, int64, ...attribute.KeyValue) {} | ||
| func (nonrecordingSyncInt64Instrument) Record(context.Context, int64, ...attribute.KeyValue) {} |
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