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Diffstat (limited to 'vendor/go.opencensus.io/stats/view/aggregation.go')
-rw-r--r-- | vendor/go.opencensus.io/stats/view/aggregation.go | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/vendor/go.opencensus.io/stats/view/aggregation.go b/vendor/go.opencensus.io/stats/view/aggregation.go deleted file mode 100644 index b7f169b..0000000 --- a/vendor/go.opencensus.io/stats/view/aggregation.go +++ /dev/null @@ -1,120 +0,0 @@ -// Copyright 2017, OpenCensus 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 view - -// AggType represents the type of aggregation function used on a View. -type AggType int - -// All available aggregation types. -const ( - AggTypeNone AggType = iota // no aggregation; reserved for future use. - AggTypeCount // the count aggregation, see Count. - AggTypeSum // the sum aggregation, see Sum. - AggTypeDistribution // the distribution aggregation, see Distribution. - AggTypeLastValue // the last value aggregation, see LastValue. -) - -func (t AggType) String() string { - return aggTypeName[t] -} - -var aggTypeName = map[AggType]string{ - AggTypeNone: "None", - AggTypeCount: "Count", - AggTypeSum: "Sum", - AggTypeDistribution: "Distribution", - AggTypeLastValue: "LastValue", -} - -// Aggregation represents a data aggregation method. Use one of the functions: -// Count, Sum, or Distribution to construct an Aggregation. -type Aggregation struct { - Type AggType // Type is the AggType of this Aggregation. - Buckets []float64 // Buckets are the bucket endpoints if this Aggregation represents a distribution, see Distribution. - - newData func() AggregationData -} - -var ( - aggCount = &Aggregation{ - Type: AggTypeCount, - newData: func() AggregationData { - return &CountData{} - }, - } - aggSum = &Aggregation{ - Type: AggTypeSum, - newData: func() AggregationData { - return &SumData{} - }, - } -) - -// Count indicates that data collected and aggregated -// with this method will be turned into a count value. -// For example, total number of accepted requests can be -// aggregated by using Count. -func Count() *Aggregation { - return aggCount -} - -// Sum indicates that data collected and aggregated -// with this method will be summed up. -// For example, accumulated request bytes can be aggregated by using -// Sum. -func Sum() *Aggregation { - return aggSum -} - -// Distribution indicates that the desired aggregation is -// a histogram distribution. -// -// An distribution aggregation may contain a histogram of the values in the -// population. The bucket boundaries for that histogram are described -// by the bounds. This defines len(bounds)+1 buckets. -// -// If len(bounds) >= 2 then the boundaries for bucket index i are: -// -// [-infinity, bounds[i]) for i = 0 -// [bounds[i-1], bounds[i]) for 0 < i < length -// [bounds[i-1], +infinity) for i = length -// -// If len(bounds) is 0 then there is no histogram associated with the -// distribution. There will be a single bucket with boundaries -// (-infinity, +infinity). -// -// If len(bounds) is 1 then there is no finite buckets, and that single -// element is the common boundary of the overflow and underflow buckets. -func Distribution(bounds ...float64) *Aggregation { - return &Aggregation{ - Type: AggTypeDistribution, - Buckets: bounds, - newData: func() AggregationData { - return newDistributionData(bounds) - }, - } -} - -// LastValue only reports the last value recorded using this -// aggregation. All other measurements will be dropped. -func LastValue() *Aggregation { - return &Aggregation{ - Type: AggTypeLastValue, - newData: func() AggregationData { - return &LastValueData{} - }, - } -} |