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Part of https://github.com/open-telemetry/opentelemetry-go/issues/5249 This makes all existing types designed to implement the public Exemplar API public by moving most of `internal/exemplar` to `exemplar`. The only types that are not being made public are `exemplar.Drop`, and `exemplar.FilteredReservoir`. Those types are moved to `internal/aggregate`, and are renamed to `DropReservoir` and `FilteredExemplarReservoir`. The following types are made public: * `exemplar.Exemplar` * `exemplar.Filter` * `exemplar.SampledFilter` * `exemplar.AlwaysOnFilter` * `exemplar.HistogramReservoir` * `exemplar.FixedSizeReservoir` * `exemplar.Reservoir` * `exemplar.Value` * `exemplar.ValueType`
30 lines
996 B
Go
30 lines
996 B
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package exemplar // import "go.opentelemetry.io/otel/sdk/metric/exemplar"
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import (
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"time"
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"go.opentelemetry.io/otel/attribute"
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)
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// Exemplar is a measurement sampled from a timeseries providing a typical
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// example.
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type Exemplar struct {
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// FilteredAttributes are the attributes recorded with the measurement but
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// filtered out of the timeseries' aggregated data.
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FilteredAttributes []attribute.KeyValue
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// Time is the time when the measurement was recorded.
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Time time.Time
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// Value is the measured value.
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Value Value
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// SpanID is the ID of the span that was active during the measurement. If
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// no span was active or the span was not sampled this will be empty.
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SpanID []byte `json:",omitempty"`
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// TraceID is the ID of the trace the active span belonged to during the
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// measurement. If no span was active or the span was not sampled this will
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// be empty.
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TraceID []byte `json:",omitempty"`
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}
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