146 lines
3.6 KiB
Go
146 lines
3.6 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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"context"
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"fmt"
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"net/url"
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"strings"
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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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