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.
158 lines
3.4 KiB
Go
158 lines
3.4 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
|
|
|
|
import (
|
|
"fmt"
|
|
"net/url"
|
|
"strings"
|
|
|
|
"golang.org/x/net/context"
|
|
|
|
"gopkg.in/olivere/elastic.v5/uritemplates"
|
|
)
|
|
|
|
// AliasesService returns the aliases associated with one or more indices.
|
|
// See http://www.elastic.co/guide/en/elasticsearch/reference/5.2/indices-aliases.html.
|
|
type AliasesService struct {
|
|
client *Client
|
|
index []string
|
|
pretty bool
|
|
}
|
|
|
|
// NewAliasesService instantiates a new AliasesService.
|
|
func NewAliasesService(client *Client) *AliasesService {
|
|
builder := &AliasesService{
|
|
client: client,
|
|
}
|
|
return builder
|
|
}
|
|
|
|
// Pretty asks Elasticsearch to indent the returned JSON.
|
|
func (s *AliasesService) Pretty(pretty bool) *AliasesService {
|
|
s.pretty = pretty
|
|
return s
|
|
}
|
|
|
|
// Index adds one or more indices.
|
|
func (s *AliasesService) Index(index ...string) *AliasesService {
|
|
s.index = append(s.index, index...)
|
|
return s
|
|
}
|
|
|
|
// buildURL builds the URL for the operation.
|
|
func (s *AliasesService) buildURL() (string, url.Values, error) {
|
|
var err error
|
|
var path string
|
|
|
|
if len(s.index) > 0 {
|
|
path, err = uritemplates.Expand("/{index}/_aliases", map[string]string{
|
|
"index": strings.Join(s.index, ","),
|
|
})
|
|
} else {
|
|
path = "/_aliases"
|
|
}
|
|
if err != nil {
|
|
return "", url.Values{}, err
|
|
}
|
|
|
|
// Add query string parameters
|
|
params := url.Values{}
|
|
if s.pretty {
|
|
params.Set("pretty", fmt.Sprintf("%v", s.pretty))
|
|
}
|
|
return path, params, nil
|
|
}
|
|
|
|
func (s *AliasesService) Do(ctx context.Context) (*AliasesResult, error) {
|
|
path, params, err := s.buildURL()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Get response
|
|
res, err := s.client.PerformRequest(ctx, "GET", path, params, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// {
|
|
// "indexName" : {
|
|
// "aliases" : {
|
|
// "alias1" : { },
|
|
// "alias2" : { }
|
|
// }
|
|
// },
|
|
// "indexName2" : {
|
|
// ...
|
|
// },
|
|
// }
|
|
indexMap := make(map[string]interface{})
|
|
if err := s.client.decoder.Decode(res.Body, &indexMap); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Each (indexName, _)
|
|
ret := &AliasesResult{
|
|
Indices: make(map[string]indexResult),
|
|
}
|
|
for indexName, indexData := range indexMap {
|
|
indexOut, found := ret.Indices[indexName]
|
|
if !found {
|
|
indexOut = indexResult{Aliases: make([]aliasResult, 0)}
|
|
}
|
|
|
|
// { "aliases" : { ... } }
|
|
indexDataMap, ok := indexData.(map[string]interface{})
|
|
if ok {
|
|
aliasesData, ok := indexDataMap["aliases"].(map[string]interface{})
|
|
if ok {
|
|
for aliasName, _ := range aliasesData {
|
|
aliasRes := aliasResult{AliasName: aliasName}
|
|
indexOut.Aliases = append(indexOut.Aliases, aliasRes)
|
|
}
|
|
}
|
|
}
|
|
|
|
ret.Indices[indexName] = indexOut
|
|
}
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
// -- Result of an alias request.
|
|
|
|
type AliasesResult struct {
|
|
Indices map[string]indexResult
|
|
}
|
|
|
|
type indexResult struct {
|
|
Aliases []aliasResult
|
|
}
|
|
|
|
type aliasResult struct {
|
|
AliasName string
|
|
}
|
|
|
|
func (ar AliasesResult) IndicesByAlias(aliasName string) []string {
|
|
var indices []string
|
|
for indexName, indexInfo := range ar.Indices {
|
|
for _, aliasInfo := range indexInfo.Aliases {
|
|
if aliasInfo.AliasName == aliasName {
|
|
indices = append(indices, indexName)
|
|
}
|
|
}
|
|
}
|
|
return indices
|
|
}
|
|
|
|
func (ir indexResult) HasAlias(aliasName string) bool {
|
|
for _, alias := range ir.Aliases {
|
|
if alias.AliasName == aliasName {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|