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.
146 lines
3.7 KiB
Go
146 lines
3.7 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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// TasksCancelService can cancel long-running tasks.
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// It is supported as of Elasticsearch 2.3.0.
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//
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// See http://www.elastic.co/guide/en/elasticsearch/reference/5.2/tasks-cancel.html
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// for details.
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type TasksCancelService struct {
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client *Client
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pretty bool
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taskId *int64
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actions []string
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nodeId []string
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parentNode string
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parentTask *int64
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}
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// NewTasksCancelService creates a new TasksCancelService.
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func NewTasksCancelService(client *Client) *TasksCancelService {
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return &TasksCancelService{
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client: client,
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actions: make([]string, 0),
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nodeId: make([]string, 0),
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}
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}
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// TaskId specifies the task to cancel. Set to -1 to cancel all tasks.
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func (s *TasksCancelService) TaskId(taskId int64) *TasksCancelService {
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s.taskId = &taskId
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return s
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}
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// Actions is a list of actions that should be cancelled. Leave empty to cancel all.
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func (s *TasksCancelService) Actions(actions []string) *TasksCancelService {
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s.actions = actions
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return s
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}
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// NodeId is a list of node IDs or names to limit the returned information;
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// use `_local` to return information from the node you're connecting to,
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// leave empty to get information from all nodes.
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func (s *TasksCancelService) NodeId(nodeId []string) *TasksCancelService {
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s.nodeId = nodeId
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return s
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}
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// ParentNode specifies to cancel tasks with specified parent node.
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func (s *TasksCancelService) ParentNode(parentNode string) *TasksCancelService {
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s.parentNode = parentNode
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return s
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}
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// ParentTask specifies to cancel tasks with specified parent task id.
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// Set to -1 to cancel all.
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func (s *TasksCancelService) ParentTask(parentTask int64) *TasksCancelService {
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s.parentTask = &parentTask
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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 *TasksCancelService) Pretty(pretty bool) *TasksCancelService {
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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 *TasksCancelService) buildURL() (string, url.Values, error) {
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// Build URL
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var err error
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var path string
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if s.taskId != nil {
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path, err = uritemplates.Expand("/_tasks/{task_id}/_cancel", map[string]string{
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"task_id": fmt.Sprintf("%d", *s.taskId),
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})
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} else {
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path = "/_tasks/_cancel"
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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 len(s.actions) > 0 {
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params.Set("actions", strings.Join(s.actions, ","))
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}
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if len(s.nodeId) > 0 {
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params.Set("node_id", strings.Join(s.nodeId, ","))
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}
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if s.parentNode != "" {
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params.Set("parent_node", s.parentNode)
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}
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if s.parentTask != nil {
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params.Set("parent_task", fmt.Sprintf("%v", *s.parentTask))
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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 *TasksCancelService) 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 *TasksCancelService) Do(ctx context.Context) (*TasksListResponse, 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, "POST", 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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ret := new(TasksListResponse)
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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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