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39 lines
1.2 KiB
Go
39 lines
1.2 KiB
Go
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// Copyright 2018, OpenCensus 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 metricdata
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import (
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"time"
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)
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// Exemplars keys.
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const (
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AttachmentKeySpanContext = "SpanContext"
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)
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// Exemplar is an example data point associated with each bucket of a
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// distribution type aggregation.
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//
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// Their purpose is to provide an example of the kind of thing
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// (request, RPC, trace span, etc.) that resulted in that measurement.
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type Exemplar struct {
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Value float64 // the value that was recorded
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Timestamp time.Time // the time the value was recorded
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Attachments Attachments // attachments (if any)
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}
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// Attachments is a map of extra values associated with a recorded data point.
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type Attachments map[string]interface{}
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