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.
114 lines
2.6 KiB
Go
114 lines
2.6 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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"golang.org/x/net/context"
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"gopkg.in/olivere/elastic.v5/uritemplates"
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)
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// GetTemplateService reads a search template.
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// It is documented at https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-template.html.
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type GetTemplateService struct {
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client *Client
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pretty bool
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id string
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version interface{}
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versionType string
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}
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// NewGetTemplateService creates a new GetTemplateService.
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func NewGetTemplateService(client *Client) *GetTemplateService {
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return &GetTemplateService{
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client: client,
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}
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}
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// Id is the template ID.
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func (s *GetTemplateService) Id(id string) *GetTemplateService {
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s.id = id
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return s
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}
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// Version is an explicit version number for concurrency control.
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func (s *GetTemplateService) Version(version interface{}) *GetTemplateService {
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s.version = version
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return s
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}
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// VersionType is a specific version type.
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func (s *GetTemplateService) VersionType(versionType string) *GetTemplateService {
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s.versionType = versionType
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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 *GetTemplateService) buildURL() (string, url.Values, error) {
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// Build URL
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path, err := uritemplates.Expand("/_search/template/{id}", map[string]string{
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"id": s.id,
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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.version != nil {
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params.Set("version", fmt.Sprintf("%v", s.version))
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}
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if s.versionType != "" {
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params.Set("version_type", s.versionType)
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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 *GetTemplateService) Validate() error {
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var invalid []string
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if s.id == "" {
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invalid = append(invalid, "Id")
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}
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if len(invalid) > 0 {
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return fmt.Errorf("missing required fields: %v", invalid)
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}
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return nil
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}
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// Do executes the operation and returns the template.
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func (s *GetTemplateService) Do(ctx context.Context) (*GetTemplateResponse, 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 result
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ret := new(GetTemplateResponse)
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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 GetTemplateResponse struct {
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Template string `json:"template"`
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}
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