mirror of https://github.com/go-gitea/gitea.git
78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package elastic
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// FilterAggregation defines a single bucket of all the documents
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// in the current document set context that match a specified filter.
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// Often this will be used to narrow down the current aggregation context
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// to a specific set of documents.
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// See: https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-aggregations-bucket-filter-aggregation.html
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type FilterAggregation struct {
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filter Query
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subAggregations map[string]Aggregation
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meta map[string]interface{}
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}
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func NewFilterAggregation() *FilterAggregation {
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return &FilterAggregation{
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subAggregations: make(map[string]Aggregation),
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}
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}
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func (a *FilterAggregation) SubAggregation(name string, subAggregation Aggregation) *FilterAggregation {
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a.subAggregations[name] = subAggregation
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return a
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}
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// Meta sets the meta data to be included in the aggregation response.
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func (a *FilterAggregation) Meta(metaData map[string]interface{}) *FilterAggregation {
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a.meta = metaData
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return a
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}
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func (a *FilterAggregation) Filter(filter Query) *FilterAggregation {
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a.filter = filter
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return a
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}
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func (a *FilterAggregation) Source() (interface{}, error) {
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// Example:
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// {
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// "aggs" : {
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// "in_stock_products" : {
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// "filter" : { "range" : { "stock" : { "gt" : 0 } } }
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// }
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// }
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// }
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// This method returns only the { "filter" : {} } part.
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src, err := a.filter.Source()
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if err != nil {
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return nil, err
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}
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source := make(map[string]interface{})
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source["filter"] = src
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// AggregationBuilder (SubAggregations)
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if len(a.subAggregations) > 0 {
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aggsMap := make(map[string]interface{})
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source["aggregations"] = aggsMap
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for name, aggregate := range a.subAggregations {
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src, err := aggregate.Source()
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if err != nil {
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return nil, err
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}
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aggsMap[name] = src
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}
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}
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// Add Meta data if available
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if len(a.meta) > 0 {
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source["meta"] = a.meta
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}
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return source, nil
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}
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