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// Copyright 2012-2015 Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
// PercentilesBucketAggregation is a sibling pipeline aggregation which calculates
// percentiles across all bucket of a specified metric in a sibling aggregation.
// The specified metric must be numeric and the sibling aggregation must
// be a multi-bucket aggregation.
//
// For more details, see
// https://www.elastic.co/guide/en/elasticsearch/reference/6.0/search-aggregations-pipeline-percentiles-bucket-aggregation.html
type PercentilesBucketAggregation struct {
format string
gapPolicy string
percents []float64
bucketsPaths []string
subAggregations map[string]Aggregation
meta map[string]interface{}
}
// NewPercentilesBucketAggregation creates and initializes a new PercentilesBucketAggregation.
func NewPercentilesBucketAggregation() *PercentilesBucketAggregation {
return &PercentilesBucketAggregation{
subAggregations: make(map[string]Aggregation),
}
}
// Format to apply the output value of this aggregation.
func (p *PercentilesBucketAggregation) Format(format string) *PercentilesBucketAggregation {
p.format = format
return p
}
// Percents to calculate percentiles for in this aggregation.
func (p *PercentilesBucketAggregation) Percents(percents ...float64) *PercentilesBucketAggregation {
p.percents = percents
return p
}
// GapPolicy defines what should be done when a gap in the series is discovered.
// Valid values include "insert_zeros" or "skip". Default is "insert_zeros".
func (p *PercentilesBucketAggregation) GapPolicy(gapPolicy string) *PercentilesBucketAggregation {
p.gapPolicy = gapPolicy
return p
}
// GapInsertZeros inserts zeros for gaps in the series.
func (p *PercentilesBucketAggregation) GapInsertZeros() *PercentilesBucketAggregation {
p.gapPolicy = "insert_zeros"
return p
}
// GapSkip skips gaps in the series.
func (p *PercentilesBucketAggregation) GapSkip() *PercentilesBucketAggregation {
p.gapPolicy = "skip"
return p
}
// SubAggregation adds a sub-aggregation to this aggregation.
func (p *PercentilesBucketAggregation) SubAggregation(name string, subAggregation Aggregation) *PercentilesBucketAggregation {
p.subAggregations[name] = subAggregation
return p
}
// Meta sets the meta data to be included in the aggregation response.
func (p *PercentilesBucketAggregation) Meta(metaData map[string]interface{}) *PercentilesBucketAggregation {
p.meta = metaData
return p
}
// BucketsPath sets the paths to the buckets to use for this pipeline aggregator.
func (p *PercentilesBucketAggregation) BucketsPath(bucketsPaths ...string) *PercentilesBucketAggregation {
p.bucketsPaths = append(p.bucketsPaths, bucketsPaths...)
return p
}
func (p *PercentilesBucketAggregation) Source() (interface{}, error) {
source := make(map[string]interface{})
params := make(map[string]interface{})
source["percentiles_bucket"] = params
if p.format != "" {
params["format"] = p.format
}
if p.gapPolicy != "" {
params["gap_policy"] = p.gapPolicy
}
// Add buckets paths
switch len(p.bucketsPaths) {
case 0:
case 1:
params["buckets_path"] = p.bucketsPaths[0]
default:
params["buckets_path"] = p.bucketsPaths
}
// Add percents
if len(p.percents) > 0 {
params["percents"] = p.percents
}
// AggregationBuilder (SubAggregations)
if len(p.subAggregations) > 0 {
aggsMap := make(map[string]interface{})
source["aggregations"] = aggsMap
for name, aggregate := range p.subAggregations {
src, err := aggregate.Source()
if err != nil {
return nil, err
}
aggsMap[name] = src
}
}
// Add Meta data if available
if len(p.meta) > 0 {
source["meta"] = p.meta
}
return source, nil
}
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