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requests.go
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requests.go
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package containers
import (
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// ListOptsBuilder allows extensions to add additional parameters to the List
// request.
type ListOptsBuilder interface {
ToContainerListParams() (bool, string, error)
}
// ListOpts is a structure that holds options for listing containers.
type ListOpts struct {
Full bool
Limit int `q:"limit"`
Marker string `q:"marker"`
EndMarker string `q:"end_marker"`
Format string `q:"format"`
Prefix string `q:"prefix"`
Delimiter string `q:"delimiter"`
}
// ToContainerListParams formats a ListOpts into a query string and boolean
// representing whether to list complete information for each container.
func (opts ListOpts) ToContainerListParams() (bool, string, error) {
q, err := gophercloud.BuildQueryString(opts)
return opts.Full, q.String(), err
}
// List is a function that retrieves containers associated with the account as
// well as account metadata. It returns a pager which can be iterated with the
// EachPage function.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
headers := map[string]string{"Accept": "text/plain", "Content-Type": "text/plain"}
url := listURL(c)
if opts != nil {
full, query, err := opts.ToContainerListParams()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
if full {
headers = map[string]string{"Accept": "application/json", "Content-Type": "application/json"}
}
}
pager := pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
p := ContainerPage{pagination.MarkerPageBase{PageResult: r}}
p.MarkerPageBase.Owner = p
return p
})
pager.Headers = headers
return pager
}
// CreateOptsBuilder allows extensions to add additional parameters to the
// Create request.
type CreateOptsBuilder interface {
ToContainerCreateMap() (map[string]string, error)
}
// CreateOpts is a structure that holds parameters for creating a container.
type CreateOpts struct {
Metadata map[string]string
ContainerRead string `h:"X-Container-Read"`
ContainerSyncTo string `h:"X-Container-Sync-To"`
ContainerSyncKey string `h:"X-Container-Sync-Key"`
ContainerWrite string `h:"X-Container-Write"`
ContentType string `h:"Content-Type"`
DetectContentType bool `h:"X-Detect-Content-Type"`
IfNoneMatch string `h:"If-None-Match"`
VersionsLocation string `h:"X-Versions-Location"`
HistoryLocation string `h:"X-History-Location"`
TempURLKey string `h:"X-Container-Meta-Temp-URL-Key"`
TempURLKey2 string `h:"X-Container-Meta-Temp-URL-Key-2"`
}
// ToContainerCreateMap formats a CreateOpts into a map of headers.
func (opts CreateOpts) ToContainerCreateMap() (map[string]string, error) {
h, err := gophercloud.BuildHeaders(opts)
if err != nil {
return nil, err
}
for k, v := range opts.Metadata {
h["X-Container-Meta-"+k] = v
}
return h, nil
}
// Create is a function that creates a new container.
func Create(c *gophercloud.ServiceClient, containerName string, opts CreateOptsBuilder) (r CreateResult) {
h := make(map[string]string)
if opts != nil {
headers, err := opts.ToContainerCreateMap()
if err != nil {
r.Err = err
return
}
for k, v := range headers {
h[k] = v
}
}
resp, err := c.Request("PUT", createURL(c, containerName), &gophercloud.RequestOpts{
MoreHeaders: h,
OkCodes: []int{201, 202, 204},
})
if resp != nil {
r.Header = resp.Header
resp.Body.Close()
}
r.Err = err
return
}
// Delete is a function that deletes a container.
func Delete(c *gophercloud.ServiceClient, containerName string) (r DeleteResult) {
_, r.Err = c.Delete(deleteURL(c, containerName), nil)
return
}
// UpdateOptsBuilder allows extensions to add additional parameters to the
// Update request.
type UpdateOptsBuilder interface {
ToContainerUpdateMap() (map[string]string, error)
}
// UpdateOpts is a structure that holds parameters for updating, creating, or
// deleting a container's metadata.
type UpdateOpts struct {
Metadata map[string]string
RemoveMetadata []string
ContainerRead string `h:"X-Container-Read"`
ContainerSyncTo string `h:"X-Container-Sync-To"`
ContainerSyncKey string `h:"X-Container-Sync-Key"`
ContainerWrite string `h:"X-Container-Write"`
ContentType string `h:"Content-Type"`
DetectContentType bool `h:"X-Detect-Content-Type"`
RemoveVersionsLocation string `h:"X-Remove-Versions-Location"`
VersionsLocation string `h:"X-Versions-Location"`
RemoveHistoryLocation string `h:"X-Remove-History-Location"`
HistoryLocation string `h:"X-History-Location"`
TempURLKey string `h:"X-Container-Meta-Temp-URL-Key"`
TempURLKey2 string `h:"X-Container-Meta-Temp-URL-Key-2"`
}
// ToContainerUpdateMap formats a UpdateOpts into a map of headers.
func (opts UpdateOpts) ToContainerUpdateMap() (map[string]string, error) {
h, err := gophercloud.BuildHeaders(opts)
if err != nil {
return nil, err
}
for k, v := range opts.Metadata {
h["X-Container-Meta-"+k] = v
}
for _, k := range opts.RemoveMetadata {
h["X-Remove-Container-Meta-"+k] = "remove"
}
return h, nil
}
// Update is a function that creates, updates, or deletes a container's
// metadata.
func Update(c *gophercloud.ServiceClient, containerName string, opts UpdateOptsBuilder) (r UpdateResult) {
h := make(map[string]string)
if opts != nil {
headers, err := opts.ToContainerUpdateMap()
if err != nil {
r.Err = err
return
}
for k, v := range headers {
h[k] = v
}
}
resp, err := c.Request("POST", updateURL(c, containerName), &gophercloud.RequestOpts{
MoreHeaders: h,
OkCodes: []int{201, 202, 204},
})
if resp != nil {
r.Header = resp.Header
}
r.Err = err
return
}
// GetOptsBuilder allows extensions to add additional parameters to the Get
// request.
type GetOptsBuilder interface {
ToContainerGetMap() (map[string]string, error)
}
// GetOpts is a structure that holds options for listing containers.
type GetOpts struct {
Newest bool `h:"X-Newest"`
}
// ToContainerGetMap formats a GetOpts into a map of headers.
func (opts GetOpts) ToContainerGetMap() (map[string]string, error) {
return gophercloud.BuildHeaders(opts)
}
// Get is a function that retrieves the metadata of a container. To extract just
// the custom metadata, pass the GetResult response to the ExtractMetadata
// function.
func Get(c *gophercloud.ServiceClient, containerName string, opts GetOptsBuilder) (r GetResult) {
h := make(map[string]string)
if opts != nil {
headers, err := opts.ToContainerGetMap()
if err != nil {
r.Err = err
return
}
for k, v := range headers {
h[k] = v
}
}
resp, err := c.Head(getURL(c, containerName), &gophercloud.RequestOpts{
MoreHeaders: h,
OkCodes: []int{200, 204},
})
if resp != nil {
r.Header = resp.Header
}
r.Err = err
return
}