a2a8d54bb6
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.
121 lines
2.9 KiB
Go
121 lines
2.9 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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// FuzzyQuery uses similarity based on Levenshtein edit distance for
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// string fields, and a +/- margin on numeric and date fields.
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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-fuzzy-query.html
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type FuzzyQuery struct {
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name string
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value interface{}
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boost *float64
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fuzziness interface{}
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prefixLength *int
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maxExpansions *int
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transpositions *bool
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rewrite string
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queryName string
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}
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// NewFuzzyQuery creates a new fuzzy query.
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func NewFuzzyQuery(name string, value interface{}) *FuzzyQuery {
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q := &FuzzyQuery{
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name: name,
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value: value,
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}
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return q
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}
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// Boost sets the boost for this query. Documents matching this query will
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// (in addition to the normal weightings) have their score multiplied by
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// the boost provided.
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func (q *FuzzyQuery) Boost(boost float64) *FuzzyQuery {
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q.boost = &boost
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return q
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}
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// Fuzziness can be an integer/long like 0, 1 or 2 as well as strings
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// like "auto", "0..1", "1..4" or "0.0..1.0".
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func (q *FuzzyQuery) Fuzziness(fuzziness interface{}) *FuzzyQuery {
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q.fuzziness = fuzziness
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return q
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}
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func (q *FuzzyQuery) PrefixLength(prefixLength int) *FuzzyQuery {
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q.prefixLength = &prefixLength
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return q
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}
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func (q *FuzzyQuery) MaxExpansions(maxExpansions int) *FuzzyQuery {
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q.maxExpansions = &maxExpansions
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return q
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}
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func (q *FuzzyQuery) Transpositions(transpositions bool) *FuzzyQuery {
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q.transpositions = &transpositions
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return q
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}
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func (q *FuzzyQuery) Rewrite(rewrite string) *FuzzyQuery {
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q.rewrite = rewrite
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return q
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}
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// QueryName sets the query name for the filter that can be used when
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// searching for matched filters per hit.
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func (q *FuzzyQuery) QueryName(queryName string) *FuzzyQuery {
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q.queryName = queryName
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return q
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}
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// Source returns JSON for the function score query.
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func (q *FuzzyQuery) Source() (interface{}, error) {
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// {
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// "fuzzy" : {
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// "user" : {
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// "value" : "ki",
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// "boost" : 1.0,
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// "fuzziness" : 2,
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// "prefix_length" : 0,
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// "max_expansions" : 100
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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["fuzzy"] = query
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fq := make(map[string]interface{})
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query[q.name] = fq
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fq["value"] = q.value
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if q.boost != nil {
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fq["boost"] = *q.boost
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}
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if q.transpositions != nil {
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fq["transpositions"] = *q.transpositions
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}
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if q.fuzziness != nil {
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fq["fuzziness"] = q.fuzziness
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}
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if q.prefixLength != nil {
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fq["prefix_length"] = *q.prefixLength
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}
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if q.maxExpansions != nil {
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fq["max_expansions"] = *q.maxExpansions
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}
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if q.rewrite != "" {
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fq["rewrite"] = q.rewrite
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}
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if q.queryName != "" {
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fq["_name"] = q.queryName
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}
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return source, nil
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}
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