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package policies
import (
"encoding/json"
"fmt"
"strconv"
"time"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// Policy represents a clustering policy in the Openstack cloud.
type Policy struct {
CreatedAt time.Time `json:"-"`
Data map[string]interface{} `json:"data"`
Domain string `json:"domain"`
ID string `json:"id"`
Name string `json:"name"`
Project string `json:"project"`
Spec Spec `json:"spec"`
Type string `json:"type"`
UpdatedAt time.Time `json:"-"`
User string `json:"user"`
}
func (r *Policy) UnmarshalJSON(b []byte) error {
type tmp Policy
var s struct {
tmp
CreatedAt string `json:"created_at,omitempty"`
UpdatedAt string `json:"updated_at,omitempty"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Policy(s.tmp)
if s.CreatedAt != "" {
r.CreatedAt, err = time.Parse(gophercloud.RFC3339MilliNoZ, s.CreatedAt)
if err != nil {
r.CreatedAt, err = time.Parse(time.RFC3339, s.CreatedAt)
if err != nil {
return err
}
}
}
if s.UpdatedAt != "" {
r.UpdatedAt, err = time.Parse(gophercloud.RFC3339MilliNoZ, s.UpdatedAt)
if err != nil {
r.UpdatedAt, err = time.Parse(time.RFC3339, s.UpdatedAt)
if err != nil {
return err
}
}
}
return nil
}
// Spec represents an OpenStack clustering policy spec.
type Spec struct {
Description string `json:"description"`
Properties map[string]interface{} `json:"properties"`
Type string `json:"type"`
Version string `json:"-"`
}
func (r *Spec) UnmarshalJSON(b []byte) error {
type tmp Spec
var s struct {
tmp
Version interface{} `json:"version"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Spec(s.tmp)
switch t := s.Version.(type) {
case float64:
if t == 1 {
r.Version = fmt.Sprintf("%.1f", t)
} else {
r.Version = strconv.FormatFloat(t, 'f', -1, 64)
}
case string:
r.Version = t
}
return nil
}
func (r Spec) MarshalJSON() ([]byte, error) {
spec := struct {
Type string `json:"type"`
Version string `json:"version"`
Properties map[string]interface{} `json:"properties"`
}{
Type: r.Type,
Version: r.Version,
Properties: r.Properties,
}
return json.Marshal(spec)
}
// policyResult is the resposne of a base Policy result.
type policyResult struct {
gophercloud.Result
}
// Extract interpets any policyResult-base result as a Policy.
func (r policyResult) Extract() (*Policy, error) {
var s struct {
Policy *Policy `json:"policy"`
}
err := r.ExtractInto(&s)
return s.Policy, err
}
// CreateResult is the result of an Update operation. Call its Extract
// method to interpret it as a Policy.
type CreateResult struct {
policyResult
}
// GetResult is the result of a Get operation. Call its Extract method to
// interpret it as a Policy.
type GetResult struct {
policyResult
}
// UpdateResult is the result of an Update operation. Call its Extract
// method to interpret it as a Policy.
type UpdateResult struct {
policyResult
}
// ValidateResult is the result of a Validate operation. Call its Extract
// method to interpret it as a Policy.
type ValidateResult struct {
policyResult
}
// DeleteResult is the result of a Delete operation. Call its Extract
// method to interpret it as a DeleteHeader.
type DeleteResult struct {
gophercloud.ErrResult
}
// PolicyPage contains a list page of all policies from a List call.
type PolicyPage struct {
pagination.MarkerPageBase
}
// IsEmpty determines if a PolicyPage contains any results.
func (page PolicyPage) IsEmpty() (bool, error) {
if page.StatusCode == 204 {
return true, nil
}
policies, err := ExtractPolicies(page)
return len(policies) == 0, err
}
// LastMarker returns the last policy ID in a ListResult.
func (r PolicyPage) LastMarker() (string, error) {
policies, err := ExtractPolicies(r)
if err != nil {
return "", err
}
if len(policies) == 0 {
return "", nil
}
return policies[len(policies)-1].ID, nil
}
// ExtractPolicies returns a slice of Policies from the List operation.
func ExtractPolicies(r pagination.Page) ([]Policy, error) {
var s struct {
Policies []Policy `json:"policies"`
}
err := (r.(PolicyPage)).ExtractInto(&s)
return s.Policies, err
}
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