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requests.go
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requests.go
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package flavors
import (
"github.com/racker/perigee"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
// ListOptsBuilder allows extensions to add additional parameters to the
// List request.
type ListOptsBuilder interface {
ToFlavorListQuery() (string, error)
}
// ListOpts helps control the results returned by the List() function.
// For example, a flavor with a minDisk field of 10 will not be returned if you specify MinDisk set to 20.
// Typically, software will use the last ID of the previous call to List to set the Marker for the current call.
type ListOpts struct {
// ChangesSince, if provided, instructs List to return only those things which have changed since the timestamp provided.
ChangesSince string `q:"changes-since"`
// MinDisk and MinRAM, if provided, elides flavors which do not meet your criteria.
MinDisk int `q:"minDisk"`
MinRAM int `q:"minRam"`
// Marker and Limit control paging.
// Marker instructs List where to start listing from.
Marker string `q:"marker"`
// Limit instructs List to refrain from sending excessively large lists of flavors.
Limit int `q:"limit"`
}
// ToFlavorListQuery formats a ListOpts into a query string.
func (opts ListOpts) ToFlavorListQuery() (string, error) {
q, err := gophercloud.BuildQueryString(opts)
if err != nil {
return "", err
}
return q.String(), nil
}
// ListDetail instructs OpenStack to provide a list of flavors.
// You may provide criteria by which List curtails its results for easier processing.
// See ListOpts for more details.
func ListDetail(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
url := listURL(client)
if opts != nil {
query, err := opts.ToFlavorListQuery()
if err != nil {
return pagination.Pager{Err: err}
}
url += query
}
createPage := func(r pagination.PageResult) pagination.Page {
return FlavorPage{pagination.LinkedPageBase{PageResult: r}}
}
return pagination.NewPager(client, url, createPage)
}
// Get instructs OpenStack to provide details on a single flavor, identified by its ID.
// Use ExtractFlavor to convert its result into a Flavor.
func Get(client *gophercloud.ServiceClient, id string) GetResult {
var gr GetResult
gr.Err = perigee.Get(getURL(client, id), perigee.Options{
Results: &gr.Body,
MoreHeaders: client.AuthenticatedHeaders(),
})
return gr
}