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.
184 lines
5.2 KiB
Go
184 lines
5.2 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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"fmt"
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"net/url"
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"strings"
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"golang.org/x/net/context"
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"gopkg.in/olivere/elastic.v5/uritemplates"
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)
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// IndicesGetSettingsService allows to retrieve settings of one
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// or more indices.
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//
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// See https://www.elastic.co/guide/en/elasticsearch/reference/5.2/indices-get-settings.html
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// for more details.
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type IndicesGetSettingsService struct {
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client *Client
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pretty bool
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index []string
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name []string
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ignoreUnavailable *bool
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allowNoIndices *bool
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expandWildcards string
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flatSettings *bool
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local *bool
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}
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// NewIndicesGetSettingsService creates a new IndicesGetSettingsService.
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func NewIndicesGetSettingsService(client *Client) *IndicesGetSettingsService {
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return &IndicesGetSettingsService{
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client: client,
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index: make([]string, 0),
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name: make([]string, 0),
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}
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}
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// Index is a list of index names; use `_all` or empty string to perform
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// the operation on all indices.
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func (s *IndicesGetSettingsService) Index(indices ...string) *IndicesGetSettingsService {
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s.index = append(s.index, indices...)
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return s
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}
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// Name are the names of the settings that should be included.
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func (s *IndicesGetSettingsService) Name(name ...string) *IndicesGetSettingsService {
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s.name = append(s.name, name...)
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return s
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}
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// IgnoreUnavailable indicates whether specified concrete indices should
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// be ignored when unavailable (missing or closed).
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func (s *IndicesGetSettingsService) IgnoreUnavailable(ignoreUnavailable bool) *IndicesGetSettingsService {
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s.ignoreUnavailable = &ignoreUnavailable
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return s
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}
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// AllowNoIndices indicates whether to ignore if a wildcard indices
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// expression resolves into no concrete indices.
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// (This includes `_all` string or when no indices have been specified).
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func (s *IndicesGetSettingsService) AllowNoIndices(allowNoIndices bool) *IndicesGetSettingsService {
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s.allowNoIndices = &allowNoIndices
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return s
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}
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// ExpandWildcards indicates whether to expand wildcard expression
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// to concrete indices that are open, closed or both.
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// Options: open, closed, none, all. Default: open,closed.
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func (s *IndicesGetSettingsService) ExpandWildcards(expandWildcards string) *IndicesGetSettingsService {
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s.expandWildcards = expandWildcards
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return s
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}
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// FlatSettings indicates whether to return settings in flat format (default: false).
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func (s *IndicesGetSettingsService) FlatSettings(flatSettings bool) *IndicesGetSettingsService {
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s.flatSettings = &flatSettings
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return s
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}
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// Local indicates whether to return local information, do not retrieve
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// the state from master node (default: false).
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func (s *IndicesGetSettingsService) Local(local bool) *IndicesGetSettingsService {
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s.local = &local
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return s
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}
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// Pretty indicates that the JSON response be indented and human readable.
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func (s *IndicesGetSettingsService) Pretty(pretty bool) *IndicesGetSettingsService {
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s.pretty = pretty
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return s
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}
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// buildURL builds the URL for the operation.
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func (s *IndicesGetSettingsService) buildURL() (string, url.Values, error) {
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var err error
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var path string
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var index []string
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if len(s.index) > 0 {
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index = s.index
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} else {
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index = []string{"_all"}
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}
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if len(s.name) > 0 {
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// Build URL
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path, err = uritemplates.Expand("/{index}/_settings/{name}", map[string]string{
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"index": strings.Join(index, ","),
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"name": strings.Join(s.name, ","),
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})
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} else {
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// Build URL
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path, err = uritemplates.Expand("/{index}/_settings", map[string]string{
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"index": strings.Join(index, ","),
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})
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}
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if err != nil {
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return "", url.Values{}, err
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}
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// Add query string parameters
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params := url.Values{}
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if s.pretty {
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params.Set("pretty", "1")
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}
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if s.ignoreUnavailable != nil {
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params.Set("ignore_unavailable", fmt.Sprintf("%v", *s.ignoreUnavailable))
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}
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if s.allowNoIndices != nil {
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params.Set("allow_no_indices", fmt.Sprintf("%v", *s.allowNoIndices))
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}
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if s.expandWildcards != "" {
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params.Set("expand_wildcards", s.expandWildcards)
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}
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if s.flatSettings != nil {
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params.Set("flat_settings", fmt.Sprintf("%v", *s.flatSettings))
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}
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if s.local != nil {
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params.Set("local", fmt.Sprintf("%v", *s.local))
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}
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return path, params, nil
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}
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// Validate checks if the operation is valid.
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func (s *IndicesGetSettingsService) Validate() error {
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return nil
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}
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// Do executes the operation.
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func (s *IndicesGetSettingsService) Do(ctx context.Context) (map[string]*IndicesGetSettingsResponse, error) {
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// Check pre-conditions
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if err := s.Validate(); err != nil {
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return nil, err
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}
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// Get URL for request
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path, params, err := s.buildURL()
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if err != nil {
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return nil, err
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}
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// Get HTTP response
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res, err := s.client.PerformRequest(ctx, "GET", path, params, nil)
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if err != nil {
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return nil, err
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}
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// Return operation response
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var ret map[string]*IndicesGetSettingsResponse
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if err := s.client.decoder.Decode(res.Body, &ret); err != nil {
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return nil, err
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}
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return ret, nil
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}
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// IndicesGetSettingsResponse is the response of IndicesGetSettingsService.Do.
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type IndicesGetSettingsResponse struct {
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Settings map[string]interface{} `json:"settings"`
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}
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