37 lines
1.3 KiB
Go
37 lines
1.3 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 exemplar // import "go.opentelemetry.io/otel/sdk/metric/internal/exemplar"
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import (
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"context"
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"time"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/sdk/metric/metricdata"
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)
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// Drop returns a [Reservoir] that drops all measurements it is offered.
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func Drop[N int64 | float64]() Reservoir[N] { return &dropRes[N]{} }
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type dropRes[N int64 | float64] struct{}
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// Offer does nothing, all measurements offered will be dropped.
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func (r *dropRes[N]) Offer(context.Context, time.Time, N, []attribute.KeyValue) {}
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// Collect resets dest. No exemplars will ever be returned.
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func (r *dropRes[N]) Collect(dest *[]metricdata.Exemplar[N]) {
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*dest = (*dest)[:0]
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}
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