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Diffstat (limited to 'vendor/gopkg.in/olivere/elastic.v5/search_aggs_pipeline_cumulative_sum.go')
-rw-r--r-- | vendor/gopkg.in/olivere/elastic.v5/search_aggs_pipeline_cumulative_sum.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/vendor/gopkg.in/olivere/elastic.v5/search_aggs_pipeline_cumulative_sum.go b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_pipeline_cumulative_sum.go new file mode 100644 index 000000000..95546f1cb --- /dev/null +++ b/vendor/gopkg.in/olivere/elastic.v5/search_aggs_pipeline_cumulative_sum.go @@ -0,0 +1,90 @@ +// Copyright 2012-present 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 + +// CumulativeSumAggregation is a parent pipeline aggregation which calculates +// the cumulative sum of a specified metric in a parent histogram (or date_histogram) +// aggregation. The specified metric must be numeric and the enclosing +// histogram must have min_doc_count set to 0 (default for histogram aggregations). +// +// For more details, see +// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-aggregations-pipeline-cumulative-sum-aggregation.html +type CumulativeSumAggregation struct { + format string + + subAggregations map[string]Aggregation + meta map[string]interface{} + bucketsPaths []string +} + +// NewCumulativeSumAggregation creates and initializes a new CumulativeSumAggregation. +func NewCumulativeSumAggregation() *CumulativeSumAggregation { + return &CumulativeSumAggregation{ + subAggregations: make(map[string]Aggregation), + bucketsPaths: make([]string, 0), + } +} + +func (a *CumulativeSumAggregation) Format(format string) *CumulativeSumAggregation { + a.format = format + return a +} + +// SubAggregation adds a sub-aggregation to this aggregation. +func (a *CumulativeSumAggregation) SubAggregation(name string, subAggregation Aggregation) *CumulativeSumAggregation { + a.subAggregations[name] = subAggregation + return a +} + +// Meta sets the meta data to be included in the aggregation response. +func (a *CumulativeSumAggregation) Meta(metaData map[string]interface{}) *CumulativeSumAggregation { + a.meta = metaData + return a +} + +// BucketsPath sets the paths to the buckets to use for this pipeline aggregator. +func (a *CumulativeSumAggregation) BucketsPath(bucketsPaths ...string) *CumulativeSumAggregation { + a.bucketsPaths = append(a.bucketsPaths, bucketsPaths...) + return a +} + +func (a *CumulativeSumAggregation) Source() (interface{}, error) { + source := make(map[string]interface{}) + params := make(map[string]interface{}) + source["cumulative_sum"] = params + + if a.format != "" { + params["format"] = a.format + } + + // Add buckets paths + switch len(a.bucketsPaths) { + case 0: + case 1: + params["buckets_path"] = a.bucketsPaths[0] + default: + params["buckets_path"] = a.bucketsPaths + } + + // AggregationBuilder (SubAggregations) + if len(a.subAggregations) > 0 { + aggsMap := make(map[string]interface{}) + source["aggregations"] = aggsMap + for name, aggregate := range a.subAggregations { + src, err := aggregate.Source() + if err != nil { + return nil, err + } + aggsMap[name] = src + } + } + + // Add Meta data if available + if len(a.meta) > 0 { + source["meta"] = a.meta + } + + return source, nil +} |