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package tasks
import (
"time"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
type commonResult struct {
gophercloud.Result
}
// GetResult represents the result of a Get operation. Call its Extract
// method to interpret it as a Task.
type GetResult struct {
commonResult
}
// CreateResult represents the result of a Create operation. Call its Extract
// method to interpret it as a Task.
type CreateResult struct {
commonResult
}
// Task represents a single task of the OpenStack Image service.
type Task struct {
// ID is a unique identifier of the task.
ID string `json:"id"`
// Type represents the type of the task.
Type string `json:"type"`
// Status represents current status of the task.
// You can use the TaskStatus custom type to unmarshal raw JSON response into
// the pre-defined valid task status.
Status string `json:"status"`
// Input represents different parameters for the task.
Input map[string]interface{} `json:"input"`
// Result represents task result details.
Result map[string]interface{} `json:"result"`
// Owner is a unique identifier of the task owner.
Owner string `json:"owner"`
// Message represents human-readable message that is usually populated
// on task failure.
Message string `json:"message"`
// ExpiresAt contains the timestamp of when the task will become a subject of
// removal.
ExpiresAt time.Time `json:"expires_at"`
// CreatedAt contains the task creation timestamp.
CreatedAt time.Time `json:"created_at"`
// UpdatedAt contains the latest timestamp of when the task was updated.
UpdatedAt time.Time `json:"updated_at"`
// Self contains URI for the task.
Self string `json:"self"`
// Schema the path to the JSON-schema that represent the task.
Schema string `json:"schema"`
}
// Extract interprets any commonResult as a Task.
func (r commonResult) Extract() (*Task, error) {
var s *Task
err := r.ExtractInto(&s)
return s, err
}
// TaskPage represents the results of a List request.
type TaskPage struct {
serviceURL string
pagination.LinkedPageBase
}
// IsEmpty returns true if a TaskPage contains no Tasks results.
func (r TaskPage) IsEmpty() (bool, error) {
tasks, err := ExtractTasks(r)
return len(tasks) == 0, err
}
// NextPageURL uses the response's embedded link reference to navigate to
// the next page of results.
func (r TaskPage) NextPageURL() (string, error) {
var s struct {
Next string `json:"next"`
}
err := r.ExtractInto(&s)
if err != nil {
return "", err
}
if s.Next == "" {
return "", nil
}
return nextPageURL(r.serviceURL, s.Next)
}
// ExtractTasks interprets the results of a single page from a List() call,
// producing a slice of Task entities.
func ExtractTasks(r pagination.Page) ([]Task, error) {
var s struct {
Tasks []Task `json:"tasks"`
}
err := (r.(TaskPage)).ExtractInto(&s)
return s.Tasks, err
}
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