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// Package attachments provides access to OpenStack Block Storage Attachment
// API's. Use of this package requires Cinder version 3.27 at a minimum.
package attachments
import (
"encoding/json"
"time"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// Attachment contains all the information associated with an OpenStack
// Attachment.
type Attachment struct {
// ID is the Unique identifier for the attachment.
ID string `json:"id"`
// VolumeID is the UUID of the Volume associated with this attachment.
VolumeID string `json:"volume_id"`
// Instance is the Instance/Server UUID associated with this attachment.
Instance string `json:"instance"`
// AttachedAt is the time the attachment was created.
AttachedAt time.Time `json:"-"`
// DetachedAt is the time the attachment was detached.
DetachedAt time.Time `json:"-"`
// Status is the current attach status.
Status string `json:"status"`
// AttachMode includes things like Read Only etc.
AttachMode string `json:"attach_mode"`
// ConnectionInfo is the required info for a node to make a connection
// provided by the driver.
ConnectionInfo map[string]interface{} `json:"connection_info"`
}
// UnmarshalJSON is our unmarshalling helper
func (r *Attachment) UnmarshalJSON(b []byte) error {
type tmp Attachment
var s struct {
tmp
AttachedAt gophercloud.JSONRFC3339MilliNoZ `json:"attached_at"`
DetachedAt gophercloud.JSONRFC3339MilliNoZ `json:"detached_at"`
}
err := json.Unmarshal(b, &s)
if err != nil {
return err
}
*r = Attachment(s.tmp)
r.AttachedAt = time.Time(s.AttachedAt)
r.DetachedAt = time.Time(s.DetachedAt)
return err
}
// AttachmentPage is a pagination.pager that is returned from a call to the List
// function.
type AttachmentPage struct {
pagination.LinkedPageBase
}
// IsEmpty returns true if a ListResult contains no Attachments.
func (r AttachmentPage) IsEmpty() (bool, error) {
if r.StatusCode == 204 {
return true, nil
}
attachments, err := ExtractAttachments(r)
return len(attachments) == 0, err
}
// ExtractAttachments extracts and returns Attachments. It is used while
// iterating over a attachment.List call.
func ExtractAttachments(r pagination.Page) ([]Attachment, error) {
var s []Attachment
err := ExtractAttachmentsInto(r, &s)
return s, err
}
type commonResult struct {
gophercloud.Result
}
// Extract will get the Attachment object out of the commonResult object.
func (r commonResult) Extract() (*Attachment, error) {
var s Attachment
err := r.ExtractInto(&s)
return &s, err
}
// ExtractInto converts our response data into a attachment struct.
func (r commonResult) ExtractInto(a interface{}) error {
return r.Result.ExtractIntoStructPtr(a, "attachment")
}
// ExtractAttachmentsInto similar to ExtractInto but operates on a List of
// attachments.
func ExtractAttachmentsInto(r pagination.Page, a interface{}) error {
return r.(AttachmentPage).Result.ExtractIntoSlicePtr(a, "attachments")
}
// 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
}
// UpdateResult contains the response body and error from an Update request.
type UpdateResult struct {
commonResult
}
// DeleteResult contains the response body and error from a Delete request.
type DeleteResult struct {
gophercloud.ErrResult
}
// CompleteResult contains the response body and error from a Complete request.
type CompleteResult struct {
gophercloud.ErrResult
}
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