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package volumes
import (
"encoding/json"
"time"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// Volume contains all the information associated with an OpenStack Volume.
type Volume struct {
// Current status of the volume.
Status string `json:"status"`
// Human-readable display name for the volume.
Name string `json:"display_name"`
// Instances onto which the volume is attached.
Attachments []map[string]interface{} `json:"attachments"`
// This parameter is no longer used.
AvailabilityZone string `json:"availability_zone"`
// Indicates whether this is a bootable volume.
Bootable string `json:"bootable"`
// The date when this volume was created.
CreatedAt time.Time `json:"-"`
// Human-readable description for the volume.
Description string `json:"display_description"`
// The type of volume to create, either SATA or SSD.
VolumeType string `json:"volume_type"`
// The ID of the snapshot from which the volume was created
SnapshotID string `json:"snapshot_id"`
// The ID of another block storage volume from which the current volume was created
SourceVolID string `json:"source_volid"`
// Arbitrary key-value pairs defined by the user.
Metadata map[string]string `json:"metadata"`
// Unique identifier for the volume.
ID string `json:"id"`
// Size of the volume in GB.
Size int `json:"size"`
}
func (r *Volume) UnmarshalJSON(b []byte) error {
type tmp Volume
var s struct {
tmp
CreatedAt gophercloud.JSONRFC3339MilliNoZ `json:"created_at"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Volume(s.tmp)
r.CreatedAt = time.Time(s.CreatedAt)
return err
}
// CreateResult contains the response body and error from a Create request.
type CreateResult struct {
commonResult
}
// GetResult contains the response body and error from a Get request.
type GetResult struct {
commonResult
}
// DeleteResult contains the response body and error from a Delete request.
type DeleteResult struct {
gophercloud.ErrResult
}
// VolumePage is a pagination.pager that is returned from a call to the List function.
type VolumePage struct {
pagination.SinglePageBase
}
// IsEmpty returns true if a VolumePage contains no Volumes.
func (r VolumePage) IsEmpty() (bool, error) {
if r.StatusCode == 204 {
return true, nil
}
volumes, err := ExtractVolumes(r)
return len(volumes) == 0, err
}
// ExtractVolumes extracts and returns Volumes. It is used while iterating over a volumes.List call.
func ExtractVolumes(r pagination.Page) ([]Volume, error) {
var s struct {
Volumes []Volume `json:"volumes"`
}
err := (r.(VolumePage)).ExtractInto(&s)
return s.Volumes, err
}
// UpdateResult contains the response body and error from an Update request.
type UpdateResult struct {
commonResult
}
type commonResult struct {
gophercloud.Result
}
// Extract will get the Volume object out of the commonResult object.
func (r commonResult) Extract() (*Volume, error) {
var s struct {
Volume *Volume `json:"volume"`
}
err := r.ExtractInto(&s)
return s.Volume, err
}
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