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// 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
import "errors"
// GeoBoundingBoxQuery allows to filter hits based on a point location using
// a bounding box.
//
// For more details, see:
// https://www.elastic.co/guide/en/elasticsearch/reference/6.0/query-dsl-geo-bounding-box-query.html
type GeoBoundingBoxQuery struct {
name string
top *float64
left *float64
bottom *float64
right *float64
typ string
queryName string
}
// NewGeoBoundingBoxQuery creates and initializes a new GeoBoundingBoxQuery.
func NewGeoBoundingBoxQuery(name string) *GeoBoundingBoxQuery {
return &GeoBoundingBoxQuery{
name: name,
}
}
func (q *GeoBoundingBoxQuery) TopLeft(top, left float64) *GeoBoundingBoxQuery {
q.top = &top
q.left = &left
return q
}
func (q *GeoBoundingBoxQuery) TopLeftFromGeoPoint(point *GeoPoint) *GeoBoundingBoxQuery {
return q.TopLeft(point.Lat, point.Lon)
}
func (q *GeoBoundingBoxQuery) BottomRight(bottom, right float64) *GeoBoundingBoxQuery {
q.bottom = &bottom
q.right = &right
return q
}
func (q *GeoBoundingBoxQuery) BottomRightFromGeoPoint(point *GeoPoint) *GeoBoundingBoxQuery {
return q.BottomRight(point.Lat, point.Lon)
}
func (q *GeoBoundingBoxQuery) BottomLeft(bottom, left float64) *GeoBoundingBoxQuery {
q.bottom = &bottom
q.left = &left
return q
}
func (q *GeoBoundingBoxQuery) BottomLeftFromGeoPoint(point *GeoPoint) *GeoBoundingBoxQuery {
return q.BottomLeft(point.Lat, point.Lon)
}
func (q *GeoBoundingBoxQuery) TopRight(top, right float64) *GeoBoundingBoxQuery {
q.top = &top
q.right = &right
return q
}
func (q *GeoBoundingBoxQuery) TopRightFromGeoPoint(point *GeoPoint) *GeoBoundingBoxQuery {
return q.TopRight(point.Lat, point.Lon)
}
// Type sets the type of executing the geo bounding box. It can be either
// memory or indexed. It defaults to memory.
func (q *GeoBoundingBoxQuery) Type(typ string) *GeoBoundingBoxQuery {
q.typ = typ
return q
}
func (q *GeoBoundingBoxQuery) QueryName(queryName string) *GeoBoundingBoxQuery {
q.queryName = queryName
return q
}
// Source returns JSON for the function score query.
func (q *GeoBoundingBoxQuery) Source() (interface{}, error) {
// {
// "geo_bounding_box" : {
// ...
// }
// }
if q.top == nil {
return nil, errors.New("geo_bounding_box requires top latitude to be set")
}
if q.bottom == nil {
return nil, errors.New("geo_bounding_box requires bottom latitude to be set")
}
if q.right == nil {
return nil, errors.New("geo_bounding_box requires right longitude to be set")
}
if q.left == nil {
return nil, errors.New("geo_bounding_box requires left longitude to be set")
}
source := make(map[string]interface{})
params := make(map[string]interface{})
source["geo_bounding_box"] = params
box := make(map[string]interface{})
box["top_left"] = []float64{*q.left, *q.top}
box["bottom_right"] = []float64{*q.right, *q.bottom}
params[q.name] = box
if q.typ != "" {
params["type"] = q.typ
}
if q.queryName != "" {
params["_name"] = q.queryName
}
return source, nil
}
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