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// Copyright 2016 go-dockerclient authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package docker
import (
"context"
"encoding/json"
"errors"
"net/http"
"github.com/docker/docker/api/types/swarm"
)
// NoSuchTask is the error returned when a given task does not exist.
type NoSuchTask struct {
ID string
Err error
}
func (err *NoSuchTask) Error() string {
if err.Err != nil {
return err.Err.Error()
}
return "No such task: " + err.ID
}
// ListTasksOptions specify parameters to the ListTasks function.
//
// See http://goo.gl/rByLzw for more details.
type ListTasksOptions struct {
Filters map[string][]string
Context context.Context
}
// ListTasks returns a slice of tasks matching the given criteria.
//
// See http://goo.gl/rByLzw for more details.
func (c *Client) ListTasks(opts ListTasksOptions) ([]swarm.Task, error) {
path := "/tasks?" + queryString(opts)
resp, err := c.do(http.MethodGet, path, doOptions{context: opts.Context})
if err != nil {
return nil, err
}
defer resp.Body.Close()
var tasks []swarm.Task
if err := json.NewDecoder(resp.Body).Decode(&tasks); err != nil {
return nil, err
}
return tasks, nil
}
// InspectTask returns information about a task by its ID.
//
// See http://goo.gl/kyziuq for more details.
func (c *Client) InspectTask(id string) (*swarm.Task, error) {
resp, err := c.do(http.MethodGet, "/tasks/"+id, doOptions{})
if err != nil {
var e *Error
if errors.As(err, &e) && e.Status == http.StatusNotFound {
return nil, &NoSuchTask{ID: id}
}
return nil, err
}
defer resp.Body.Close()
var task swarm.Task
if err := json.NewDecoder(resp.Body).Decode(&task); err != nil {
return nil, err
}
return &task, nil
}
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