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package snapshots
import (
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
"github.com/mitchellh/mapstructure"
)
// Snapshot contains all the information associated with an OpenStack Snapshot.
type Snapshot struct {
// Currect status of the Snapshot.
Status string `mapstructure:"status"`
// Display name.
Name string `mapstructure:"display_name"`
// Instances onto which the Snapshot is attached.
Attachments []string `mapstructure:"attachments"`
// Logical group.
AvailabilityZone string `mapstructure:"availability_zone"`
// Is the Snapshot bootable?
Bootable string `mapstructure:"bootable"`
// Date created.
CreatedAt string `mapstructure:"created_at"`
// Display description.
Description string `mapstructure:"display_discription"`
// See VolumeType object for more information.
VolumeType string `mapstructure:"volume_type"`
// ID of the Snapshot from which this Snapshot was created.
SnapshotID string `mapstructure:"snapshot_id"`
// ID of the Volume from which this Snapshot was created.
VolumeID string `mapstructure:"volume_id"`
// User-defined key-value pairs.
Metadata map[string]string `mapstructure:"metadata"`
// Unique identifier.
ID string `mapstructure:"id"`
// Size of the Snapshot, in GB.
Size int `mapstructure:"size"`
}
// 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
}
// ListResult is a pagination.Pager that is returned from a call to the List function.
type ListResult struct {
pagination.SinglePageBase
}
// IsEmpty returns true if a ListResult contains no Snapshots.
func (r ListResult) IsEmpty() (bool, error) {
volumes, err := ExtractSnapshots(r)
if err != nil {
return true, err
}
return len(volumes) == 0, nil
}
// ExtractSnapshots extracts and returns Snapshots. It is used while iterating over a snapshots.List call.
func ExtractSnapshots(page pagination.Page) ([]Snapshot, error) {
var response struct {
Snapshots []Snapshot `json:"snapshots"`
}
err := mapstructure.Decode(page.(ListResult).Body, &response)
return response.Snapshots, err
}
// UpdateMetadataResult contains the response body and error from an UpdateMetadata request.
type UpdateMetadataResult struct {
commonResult
}
// ExtractMetadata returns the metadata from a response from snapshots.UpdateMetadata.
func (r UpdateMetadataResult) ExtractMetadata() (map[string]interface{}, error) {
if r.Err != nil {
return nil, r.Err
}
m := r.Body.(map[string]interface{})["metadata"]
return m.(map[string]interface{}), nil
}
type commonResult struct {
gophercloud.Result
}
// Extract will get the Snapshot object out of the commonResult object.
func (r commonResult) Extract() (*Snapshot, error) {
if r.Err != nil {
return nil, r.Err
}
var res struct {
Snapshot *Snapshot `json:"snapshot"`
}
err := mapstructure.Decode(r.Body, &res)
return res.Snapshot, err
}
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