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package volumeattach
import (
"github.com/mitchellh/mapstructure"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
// VolumeAttach controls the attachment of a volume to an instance.
type VolumeAttachment struct {
// ID is a unique id of the attachment
ID string `mapstructure:"id"`
// Device is what device the volume is attached as
Device string `mapstructure:"device"`
// VolumeID is the ID of the attached volume
VolumeID string `mapstructure:"volumeId"`
// ServerID is the ID of the instance that has the volume attached
ServerID string `mapstructure:"serverId"`
}
// VolumeAttachmentsPage stores a single, only page of VolumeAttachments
// results from a List call.
type VolumeAttachmentsPage struct {
pagination.SinglePageBase
}
// IsEmpty determines whether or not a VolumeAttachmentsPage is empty.
func (page VolumeAttachmentsPage) IsEmpty() (bool, error) {
va, err := ExtractVolumeAttachments(page)
return len(va) == 0, err
}
// ExtractVolumeAttachments interprets a page of results as a slice of
// VolumeAttachments.
func ExtractVolumeAttachments(page pagination.Page) ([]VolumeAttachment, error) {
casted := page.(VolumeAttachmentsPage).Body
var response struct {
VolumeAttachments []VolumeAttachment `mapstructure:"volumeAttachments"`
}
err := mapstructure.WeakDecode(casted, &response)
return response.VolumeAttachments, err
}
type VolumeAttachmentResult struct {
gophercloud.Result
}
// Extract is a method that attempts to interpret any VolumeAttachment resource
// response as a VolumeAttachment struct.
func (r VolumeAttachmentResult) Extract() (*VolumeAttachment, error) {
if r.Err != nil {
return nil, r.Err
}
var res struct {
VolumeAttachment *VolumeAttachment `json:"volumeAttachment" mapstructure:"volumeAttachment"`
}
err := mapstructure.Decode(r.Body, &res)
return res.VolumeAttachment, err
}
// CreateResult is the response from a Create operation. Call its Extract method to interpret it
// as a VolumeAttachment.
type CreateResult struct {
VolumeAttachmentResult
}
// GetResult is the response from a Get operation. Call its Extract method to interpret it
// as a VolumeAttachment.
type GetResult struct {
VolumeAttachmentResult
}
// DeleteResult is the response from a Delete operation. Call its Extract method to determine if
// the call succeeded or failed.
type DeleteResult struct {
gophercloud.ErrResult
}
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