minio/vendor/gopkg.in/olivere/elastic.v5/search_queries_geo_distance.go
Aditya Manthramurthy a2a8d54bb6 Add access format support for Elasticsearch notification target (#4006)
This change adds `access` format support for notifications to a
Elasticsearch server, and it refactors `namespace` format support.

In the case of `access` format, for each event in Minio, a JSON
document is inserted into Elasticsearch with its timestamp set to the
event's timestamp, and with the ID generated automatically by
elasticsearch. No events are modified or deleted in this mode.

In the case of `namespace` format, for each event in Minio, a JSON
document is keyed together by the bucket and object name is updated in
Elasticsearch. In the case of an object being created or over-written
in Minio, a new document or an existing document is inserted into the
Elasticsearch index. If an object is deleted in Minio, the
corresponding document is deleted from the Elasticsearch index.

Additionally, this change upgrades Elasticsearch support to the 5.x
series. This is a breaking change, and users of previous elasticsearch
versions should upgrade.

Also updates documentation on Elasticsearch notification target usage
and has a link to an elasticsearch upgrade guide.

This is the last patch that finally resolves #3928.
2017-03-31 14:11:27 -07:00

116 lines
2.6 KiB
Go

// 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
// GeoDistanceQuery filters documents that include only hits that exists
// within a specific distance from a geo point.
//
// For more details, see:
// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-geo-distance-query.html
type GeoDistanceQuery struct {
name string
distance string
lat float64
lon float64
geohash string
distanceType string
optimizeBbox string
queryName string
}
// NewGeoDistanceQuery creates and initializes a new GeoDistanceQuery.
func NewGeoDistanceQuery(name string) *GeoDistanceQuery {
return &GeoDistanceQuery{name: name}
}
func (q *GeoDistanceQuery) GeoPoint(point *GeoPoint) *GeoDistanceQuery {
q.lat = point.Lat
q.lon = point.Lon
return q
}
func (q *GeoDistanceQuery) Point(lat, lon float64) *GeoDistanceQuery {
q.lat = lat
q.lon = lon
return q
}
func (q *GeoDistanceQuery) Lat(lat float64) *GeoDistanceQuery {
q.lat = lat
return q
}
func (q *GeoDistanceQuery) Lon(lon float64) *GeoDistanceQuery {
q.lon = lon
return q
}
func (q *GeoDistanceQuery) GeoHash(geohash string) *GeoDistanceQuery {
q.geohash = geohash
return q
}
func (q *GeoDistanceQuery) Distance(distance string) *GeoDistanceQuery {
q.distance = distance
return q
}
func (q *GeoDistanceQuery) DistanceType(distanceType string) *GeoDistanceQuery {
q.distanceType = distanceType
return q
}
func (q *GeoDistanceQuery) OptimizeBbox(optimizeBbox string) *GeoDistanceQuery {
q.optimizeBbox = optimizeBbox
return q
}
func (q *GeoDistanceQuery) QueryName(queryName string) *GeoDistanceQuery {
q.queryName = queryName
return q
}
// Source returns JSON for the function score query.
func (q *GeoDistanceQuery) Source() (interface{}, error) {
// {
// "geo_distance" : {
// "distance" : "200km",
// "pin.location" : {
// "lat" : 40,
// "lon" : -70
// }
// }
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
if q.geohash != "" {
params[q.name] = q.geohash
} else {
location := make(map[string]interface{})
location["lat"] = q.lat
location["lon"] = q.lon
params[q.name] = location
}
if q.distance != "" {
params["distance"] = q.distance
}
if q.distanceType != "" {
params["distance_type"] = q.distanceType
}
if q.optimizeBbox != "" {
params["optimize_bbox"] = q.optimizeBbox
}
if q.queryName != "" {
params["_name"] = q.queryName
}
source["geo_distance"] = params
return source, nil
}