You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.0 KiB
71 lines
2.0 KiB
// 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 |
|
|
|
// 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: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-aggregations-bucket-global-aggregation.html |
|
type GlobalAggregation struct { |
|
subAggregations map[string]Aggregation |
|
meta map[string]interface{} |
|
} |
|
|
|
func NewGlobalAggregation() *GlobalAggregation { |
|
return &GlobalAggregation{ |
|
subAggregations: make(map[string]Aggregation), |
|
} |
|
} |
|
|
|
func (a *GlobalAggregation) SubAggregation(name string, subAggregation Aggregation) *GlobalAggregation { |
|
a.subAggregations[name] = subAggregation |
|
return a |
|
} |
|
|
|
// Meta sets the meta data to be included in the aggregation response. |
|
func (a *GlobalAggregation) Meta(metaData map[string]interface{}) *GlobalAggregation { |
|
a.meta = metaData |
|
return a |
|
} |
|
|
|
func (a *GlobalAggregation) Source() (interface{}, error) { |
|
// 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 { |
|
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 |
|
}
|
|
|