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

54 lines
1.2 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
// SliceQuery allows to partition the documents into several slices.
// It is used e.g. to slice scroll operations in Elasticsearch 5.0 or later.
// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-request-scroll.html#sliced-scroll
// for details.
type SliceQuery struct {
field string
id *int
max *int
}
// NewSliceQuery creates a new SliceQuery.
func NewSliceQuery() *SliceQuery {
return &SliceQuery{}
}
// Field is the name of the field to slice against (_uid by default).
func (s *SliceQuery) Field(field string) *SliceQuery {
s.field = field
return s
}
// Id is the id of the slice.
func (s *SliceQuery) Id(id int) *SliceQuery {
s.id = &id
return s
}
// Max is the maximum number of slices.
func (s *SliceQuery) Max(max int) *SliceQuery {
s.max = &max
return s
}
// Source returns the JSON body.
func (s *SliceQuery) Source() (interface{}, error) {
m := make(map[string]interface{})
if s.field != "" {
m["field"] = s.field
}
if s.id != nil {
m["id"] = *s.id
}
if s.max != nil {
m["max"] = *s.max
}
return m, nil
}