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https://github.com/go-gitea/gitea
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5dbf36f356
* Issue search support elasticsearch * Fix lint * Add indexer name on app.ini * add a warnning on SearchIssuesByKeyword * improve code
199 lines
5.6 KiB
Go
Vendored
199 lines
5.6 KiB
Go
Vendored
// 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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// GeoDistanceAggregation is a multi-bucket aggregation that works on geo_point fields
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// and conceptually works very similar to the range aggregation.
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// The user can define a point of origin and a set of distance range buckets.
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// The aggregation evaluate the distance of each document value from
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// the origin point and determines the buckets it belongs to based on
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// the ranges (a document belongs to a bucket if the distance between the
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// document and the origin falls within the distance range of the bucket).
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// See: https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-aggregations-bucket-geodistance-aggregation.html
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type GeoDistanceAggregation struct {
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field string
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unit string
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distanceType string
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point string
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ranges []geoDistAggRange
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subAggregations map[string]Aggregation
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meta map[string]interface{}
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}
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type geoDistAggRange struct {
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Key string
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From interface{}
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To interface{}
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}
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func NewGeoDistanceAggregation() *GeoDistanceAggregation {
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return &GeoDistanceAggregation{
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subAggregations: make(map[string]Aggregation),
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ranges: make([]geoDistAggRange, 0),
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}
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}
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func (a *GeoDistanceAggregation) Field(field string) *GeoDistanceAggregation {
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a.field = field
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return a
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}
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func (a *GeoDistanceAggregation) Unit(unit string) *GeoDistanceAggregation {
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a.unit = unit
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return a
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}
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func (a *GeoDistanceAggregation) DistanceType(distanceType string) *GeoDistanceAggregation {
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a.distanceType = distanceType
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return a
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}
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func (a *GeoDistanceAggregation) Point(latLon string) *GeoDistanceAggregation {
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a.point = latLon
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return a
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}
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func (a *GeoDistanceAggregation) SubAggregation(name string, subAggregation Aggregation) *GeoDistanceAggregation {
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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 *GeoDistanceAggregation) Meta(metaData map[string]interface{}) *GeoDistanceAggregation {
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a.meta = metaData
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return a
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}
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func (a *GeoDistanceAggregation) AddRange(from, to interface{}) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{From: from, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) AddRangeWithKey(key string, from, to interface{}) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{Key: key, From: from, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) AddUnboundedTo(from float64) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{From: from, To: nil})
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return a
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}
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func (a *GeoDistanceAggregation) AddUnboundedToWithKey(key string, from float64) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{Key: key, From: from, To: nil})
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return a
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}
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func (a *GeoDistanceAggregation) AddUnboundedFrom(to float64) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{From: nil, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) AddUnboundedFromWithKey(key string, to float64) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{Key: key, From: nil, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) Between(from, to interface{}) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{From: from, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) BetweenWithKey(key string, from, to interface{}) *GeoDistanceAggregation {
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a.ranges = append(a.ranges, geoDistAggRange{Key: key, From: from, To: to})
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return a
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}
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func (a *GeoDistanceAggregation) Source() (interface{}, error) {
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// Example:
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// {
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// "aggs" : {
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// "rings_around_amsterdam" : {
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// "geo_distance" : {
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// "field" : "location",
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// "origin" : "52.3760, 4.894",
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// "ranges" : [
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// { "to" : 100 },
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// { "from" : 100, "to" : 300 },
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// { "from" : 300 }
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// ]
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// }
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// }
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// }
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// }
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//
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// This method returns only the { "range" : { ... } } part.
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source := make(map[string]interface{})
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opts := make(map[string]interface{})
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source["geo_distance"] = opts
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if a.field != "" {
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opts["field"] = a.field
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}
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if a.unit != "" {
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opts["unit"] = a.unit
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}
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if a.distanceType != "" {
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opts["distance_type"] = a.distanceType
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}
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if a.point != "" {
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opts["origin"] = a.point
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}
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var ranges []interface{}
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for _, ent := range a.ranges {
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r := make(map[string]interface{})
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if ent.Key != "" {
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r["key"] = ent.Key
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}
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if ent.From != nil {
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switch from := ent.From.(type) {
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case int, int16, int32, int64, float32, float64:
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r["from"] = from
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case *int, *int16, *int32, *int64, *float32, *float64:
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r["from"] = from
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case string:
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r["from"] = from
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case *string:
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r["from"] = from
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}
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}
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if ent.To != nil {
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switch to := ent.To.(type) {
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case int, int16, int32, int64, float32, float64:
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r["to"] = to
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case *int, *int16, *int32, *int64, *float32, *float64:
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r["to"] = to
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case string:
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r["to"] = to
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case *string:
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r["to"] = to
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}
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}
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ranges = append(ranges, r)
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}
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opts["ranges"] = ranges
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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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