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.
81 lines
2.1 KiB
Go
81 lines
2.1 KiB
Go
// 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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// WildcardQuery matches documents that have fields matching a wildcard
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// expression (not analyzed). Supported wildcards are *, which matches
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// any character sequence (including the empty one), and ?, which matches
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// any single character. Note this query can be slow, as it needs to iterate
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// over many terms. In order to prevent extremely slow wildcard queries,
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// a wildcard term should not start with one of the wildcards * or ?.
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// The wildcard query maps to Lucene WildcardQuery.
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//
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// For more details, see
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// https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-wildcard-query.html
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type WildcardQuery struct {
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name string
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wildcard string
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boost *float64
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rewrite string
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queryName string
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}
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// NewWildcardQuery creates and initializes a new WildcardQuery.
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func NewWildcardQuery(name, wildcard string) *WildcardQuery {
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return &WildcardQuery{
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name: name,
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wildcard: wildcard,
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}
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}
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// Boost sets the boost for this query.
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func (q *WildcardQuery) Boost(boost float64) *WildcardQuery {
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q.boost = &boost
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return q
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}
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func (q *WildcardQuery) Rewrite(rewrite string) *WildcardQuery {
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q.rewrite = rewrite
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return q
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}
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// QueryName sets the name of this query.
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func (q *WildcardQuery) QueryName(queryName string) *WildcardQuery {
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q.queryName = queryName
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return q
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}
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// Source returns the JSON serializable body of this query.
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func (q *WildcardQuery) Source() (interface{}, error) {
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// {
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// "wildcard" : {
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// "user" : {
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// "wildcard" : "ki*y",
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// "boost" : 1.0
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// }
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// }
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source := make(map[string]interface{})
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query := make(map[string]interface{})
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source["wildcard"] = query
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wq := make(map[string]interface{})
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query[q.name] = wq
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wq["wildcard"] = q.wildcard
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if q.boost != nil {
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wq["boost"] = *q.boost
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}
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if q.rewrite != "" {
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wq["rewrite"] = q.rewrite
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}
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if q.queryName != "" {
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wq["_name"] = q.queryName
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}
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return source, nil
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}
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