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.
234 lines
6.5 KiB
Go
234 lines
6.5 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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import (
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"time"
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)
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// DateRangeAggregation is a range aggregation that is dedicated for
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// date values. The main difference between this aggregation and the
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// normal range aggregation is that the from and to values can be expressed
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// in Date Math expressions, and it is also possible to specify a
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// date format by which the from and to response fields will be returned.
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// Note that this aggregration includes the from value and excludes the to
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// value for each range.
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// See: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-aggregations-bucket-daterange-aggregation.html
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type DateRangeAggregation struct {
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field string
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script *Script
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subAggregations map[string]Aggregation
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meta map[string]interface{}
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keyed *bool
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unmapped *bool
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format string
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entries []DateRangeAggregationEntry
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}
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type DateRangeAggregationEntry struct {
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Key string
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From interface{}
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To interface{}
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}
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func NewDateRangeAggregation() *DateRangeAggregation {
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return &DateRangeAggregation{
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subAggregations: make(map[string]Aggregation),
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entries: make([]DateRangeAggregationEntry, 0),
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}
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}
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func (a *DateRangeAggregation) Field(field string) *DateRangeAggregation {
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a.field = field
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return a
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}
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func (a *DateRangeAggregation) Script(script *Script) *DateRangeAggregation {
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a.script = script
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return a
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}
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func (a *DateRangeAggregation) SubAggregation(name string, subAggregation Aggregation) *DateRangeAggregation {
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a.subAggregations[name] = subAggregation
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return a
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}
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// Meta sets the meta data to be included in the aggregation response.
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func (a *DateRangeAggregation) Meta(metaData map[string]interface{}) *DateRangeAggregation {
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a.meta = metaData
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return a
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}
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func (a *DateRangeAggregation) Keyed(keyed bool) *DateRangeAggregation {
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a.keyed = &keyed
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return a
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}
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func (a *DateRangeAggregation) Unmapped(unmapped bool) *DateRangeAggregation {
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a.unmapped = &unmapped
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return a
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}
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func (a *DateRangeAggregation) Format(format string) *DateRangeAggregation {
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a.format = format
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return a
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}
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func (a *DateRangeAggregation) AddRange(from, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: from, To: to})
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return a
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}
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func (a *DateRangeAggregation) AddRangeWithKey(key string, from, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: from, To: to})
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return a
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}
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func (a *DateRangeAggregation) AddUnboundedTo(from interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: from, To: nil})
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return a
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}
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func (a *DateRangeAggregation) AddUnboundedToWithKey(key string, from interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: from, To: nil})
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return a
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}
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func (a *DateRangeAggregation) AddUnboundedFrom(to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: nil, To: to})
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return a
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}
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func (a *DateRangeAggregation) AddUnboundedFromWithKey(key string, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: nil, To: to})
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return a
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}
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func (a *DateRangeAggregation) Lt(to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: nil, To: to})
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return a
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}
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func (a *DateRangeAggregation) LtWithKey(key string, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: nil, To: to})
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return a
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}
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func (a *DateRangeAggregation) Between(from, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: from, To: to})
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return a
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}
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func (a *DateRangeAggregation) BetweenWithKey(key string, from, to interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: from, To: to})
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return a
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}
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func (a *DateRangeAggregation) Gt(from interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{From: from, To: nil})
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return a
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}
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func (a *DateRangeAggregation) GtWithKey(key string, from interface{}) *DateRangeAggregation {
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a.entries = append(a.entries, DateRangeAggregationEntry{Key: key, From: from, To: nil})
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return a
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}
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func (a *DateRangeAggregation) Source() (interface{}, error) {
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// Example:
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// {
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// "aggs" : {
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// "range" : {
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// "date_range": {
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// "field": "date",
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// "format": "MM-yyy",
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// "ranges": [
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// { "to": "now-10M/M" },
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// { "from": "now-10M/M" }
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// ]
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// }
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// }
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// }
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// }
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// }
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//
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// This method returns only the { "date_range" : { ... } } part.
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source := make(map[string]interface{})
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opts := make(map[string]interface{})
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source["date_range"] = opts
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// ValuesSourceAggregationBuilder
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if a.field != "" {
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opts["field"] = a.field
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}
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if a.script != nil {
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src, err := a.script.Source()
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if err != nil {
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return nil, err
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}
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opts["script"] = src
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}
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if a.keyed != nil {
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opts["keyed"] = *a.keyed
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}
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if a.unmapped != nil {
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opts["unmapped"] = *a.unmapped
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}
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if a.format != "" {
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opts["format"] = a.format
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}
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var ranges []interface{}
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for _, ent := range a.entries {
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r := make(map[string]interface{})
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if ent.Key != "" {
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r["key"] = ent.Key
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}
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if ent.From != nil {
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switch from := ent.From.(type) {
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case int, int16, int32, int64, float32, float64:
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r["from"] = from
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case time.Time:
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r["from"] = from.Format(time.RFC3339)
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case string:
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r["from"] = from
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}
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}
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if ent.To != nil {
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switch to := ent.To.(type) {
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case int, int16, int32, int64, float32, float64:
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r["to"] = to
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case time.Time:
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r["to"] = to.Format(time.RFC3339)
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case string:
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r["to"] = to
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}
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}
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ranges = append(ranges, r)
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}
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opts["ranges"] = ranges
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// AggregationBuilder (SubAggregations)
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if len(a.subAggregations) > 0 {
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aggsMap := make(map[string]interface{})
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source["aggregations"] = aggsMap
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for name, aggregate := range a.subAggregations {
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src, err := aggregate.Source()
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if err != nil {
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return nil, err
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}
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aggsMap[name] = src
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}
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}
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// Add Meta data if available
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if len(a.meta) > 0 {
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source["meta"] = a.meta
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}
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return source, nil
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}
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