57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// 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
|
||
|
||
// GlobalAggregation defines a single bucket of all the documents within
|
||
// the search execution context. This context is defined by the indices
|
||
// and the document types you’re searching on, but is not influenced
|
||
// by the search query itself.
|
||
// See: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-aggregations-bucket-global-aggregation.html
|
||
type GlobalAggregation struct {
|
||
subAggregations map[string]Aggregation
|
||
}
|
||
|
||
func NewGlobalAggregation() GlobalAggregation {
|
||
a := GlobalAggregation{
|
||
subAggregations: make(map[string]Aggregation),
|
||
}
|
||
return a
|
||
}
|
||
|
||
func (a GlobalAggregation) SubAggregation(name string, subAggregation Aggregation) GlobalAggregation {
|
||
a.subAggregations[name] = subAggregation
|
||
return a
|
||
}
|
||
|
||
func (a GlobalAggregation) Source() interface{} {
|
||
// Example:
|
||
// {
|
||
// "aggs" : {
|
||
// "all_products" : {
|
||
// "global" : {},
|
||
// "aggs" : {
|
||
// "avg_price" : { "avg" : { "field" : "price" } }
|
||
// }
|
||
// }
|
||
// }
|
||
// }
|
||
// This method returns only the { "global" : {} } part.
|
||
|
||
source := make(map[string]interface{})
|
||
opts := make(map[string]interface{})
|
||
source["global"] = opts
|
||
|
||
// AggregationBuilder (SubAggregations)
|
||
if len(a.subAggregations) > 0 {
|
||
aggsMap := make(map[string]interface{})
|
||
source["aggregations"] = aggsMap
|
||
for name, aggregate := range a.subAggregations {
|
||
aggsMap[name] = aggregate.Source()
|
||
}
|
||
}
|
||
|
||
return source
|
||
}
|