minio/vendor/gopkg.in/olivere/elastic.v5/search_queries_indices.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

89 lines
2.3 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
// IndicesQuery can be used when executed across multiple indices, allowing
// to have a query that executes only when executed on an index that matches
// a specific list of indices, and another query that executes when it is
// executed on an index that does not match the listed indices.
//
// For more details, see
// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-indices-query.html
type IndicesQuery struct {
query Query
indices []string
noMatchQueryType string
noMatchQuery Query
queryName string
}
// NewIndicesQuery creates and initializes a new indices query.
func NewIndicesQuery(query Query, indices ...string) *IndicesQuery {
return &IndicesQuery{
query: query,
indices: indices,
}
}
// NoMatchQuery sets the query to use when it executes on an index that
// does not match the indices provided.
func (q *IndicesQuery) NoMatchQuery(query Query) *IndicesQuery {
q.noMatchQuery = query
return q
}
// NoMatchQueryType sets the no match query which can be either all or none.
func (q *IndicesQuery) NoMatchQueryType(typ string) *IndicesQuery {
q.noMatchQueryType = typ
return q
}
// QueryName sets the query name for the filter.
func (q *IndicesQuery) QueryName(queryName string) *IndicesQuery {
q.queryName = queryName
return q
}
// Source returns JSON for the function score query.
func (q *IndicesQuery) Source() (interface{}, error) {
// {
// "indices" : {
// "indices" : ["index1", "index2"],
// "query" : {
// "term" : { "tag" : "wow" }
// },
// "no_match_query" : {
// "term" : { "tag" : "kow" }
// }
// }
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
source["indices"] = params
params["indices"] = q.indices
src, err := q.query.Source()
if err != nil {
return nil, err
}
params["query"] = src
if q.noMatchQuery != nil {
src, err := q.noMatchQuery.Source()
if err != nil {
return nil, err
}
params["no_match_query"] = src
} else if q.noMatchQueryType != "" {
params["no_match_query"] = q.noMatchQueryType
}
if q.queryName != "" {
params["_name"] = q.queryName
}
return source, nil
}