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.
98 lines
2.2 KiB
Go
98 lines
2.2 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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"encoding/json"
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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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)
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// MultiSearch executes one or more searches in one roundtrip.
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type MultiSearchService struct {
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client *Client
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requests []*SearchRequest
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indices []string
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pretty bool
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routing string
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preference string
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}
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func NewMultiSearchService(client *Client) *MultiSearchService {
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builder := &MultiSearchService{
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client: client,
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requests: make([]*SearchRequest, 0),
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indices: make([]string, 0),
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}
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return builder
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}
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func (s *MultiSearchService) Add(requests ...*SearchRequest) *MultiSearchService {
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s.requests = append(s.requests, requests...)
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return s
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}
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func (s *MultiSearchService) Index(indices ...string) *MultiSearchService {
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s.indices = append(s.indices, indices...)
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return s
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}
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func (s *MultiSearchService) Pretty(pretty bool) *MultiSearchService {
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s.pretty = pretty
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return s
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}
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func (s *MultiSearchService) Do(ctx context.Context) (*MultiSearchResult, error) {
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// Build url
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path := "/_msearch"
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// Parameters
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params := make(url.Values)
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if s.pretty {
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params.Set("pretty", fmt.Sprintf("%v", s.pretty))
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}
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// Set body
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var lines []string
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for _, sr := range s.requests {
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// Set default indices if not specified in the request
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if !sr.HasIndices() && len(s.indices) > 0 {
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sr = sr.Index(s.indices...)
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}
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header, err := json.Marshal(sr.header())
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if err != nil {
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return nil, err
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}
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body, err := json.Marshal(sr.body())
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if err != nil {
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return nil, err
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}
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lines = append(lines, string(header))
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lines = append(lines, string(body))
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}
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body := strings.Join(lines, "\n") + "\n" // Don't forget trailing \n
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// Get response
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res, err := s.client.PerformRequest(ctx, "GET", path, params, body)
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if err != nil {
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return nil, err
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}
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// Return result
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ret := new(MultiSearchResult)
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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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type MultiSearchResult struct {
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Responses []*SearchResult `json:"responses,omitempty"`
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}
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