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package floatingips
import (
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/pagination"
)
// FloatingIP represents a floating IP resource. A floating IP is an external
// IP address that is mapped to an internal port and, optionally, a specific
// IP address on a private network. In other words, it enables access to an
// instance on a private network from an external network. For this reason,
// floating IPs can only be defined on networks where the `router:external'
// attribute (provided by the external network extension) is set to True.
type FloatingIP struct {
// ID is the unique identifier for the floating IP instance.
ID string `json:"id"`
// FloatingNetworkID is the UUID of the external network where the floating
// IP is to be created.
FloatingNetworkID string `json:"floating_network_id"`
// FloatingIP is the address of the floating IP on the external network.
FloatingIP string `json:"floating_ip_address"`
// PortID is the UUID of the port on an internal network that is associated
// with the floating IP.
PortID string `json:"port_id"`
// FixedIP is the specific IP address of the internal port which should be
// associated with the floating IP.
FixedIP string `json:"fixed_ip_address"`
// TenantID is the project owner of the floating IP. Only admin users can
// specify a project identifier other than its own.
TenantID string `json:"tenant_id"`
// ProjectID is the project owner of the floating IP.
ProjectID string `json:"project_id"`
// Status is the condition of the API resource.
Status string `json:"status"`
// RouterID is the ID of the router used for this floating IP.
RouterID string `json:"router_id"`
}
type commonResult struct {
gophercloud.Result
}
// Extract will extract a FloatingIP resource from a result.
func (r commonResult) Extract() (*FloatingIP, error) {
var s struct {
FloatingIP *FloatingIP `json:"floatingip"`
}
err := r.ExtractInto(&s)
return s.FloatingIP, err
}
// CreateResult represents the result of a create operation. Call its Extract
// method to interpret it as a FloatingIP.
type CreateResult struct {
commonResult
}
// GetResult represents the result of a get operation. Call its Extract
// method to interpret it as a FloatingIP.
type GetResult struct {
commonResult
}
// UpdateResult represents the result of an update operation. Call its Extract
// method to interpret it as a FloatingIP.
type UpdateResult struct {
commonResult
}
// DeleteResult represents the result of an update operation. Call its
// ExtractErr method to determine if the request succeeded or failed.
type DeleteResult struct {
gophercloud.ErrResult
}
// FloatingIPPage is the page returned by a pager when traversing over a
// collection of floating IPs.
type FloatingIPPage struct {
pagination.LinkedPageBase
}
// NextPageURL is invoked when a paginated collection of floating IPs has
// reached the end of a page and the pager seeks to traverse over a new one.
// In order to do this, it needs to construct the next page's URL.
func (r FloatingIPPage) NextPageURL() (string, error) {
var s struct {
Links []gophercloud.Link `json:"floatingips_links"`
}
err := r.ExtractInto(&s)
if err != nil {
return "", err
}
return gophercloud.ExtractNextURL(s.Links)
}
// IsEmpty checks whether a FloatingIPPage struct is empty.
func (r FloatingIPPage) IsEmpty() (bool, error) {
is, err := ExtractFloatingIPs(r)
return len(is) == 0, err
}
// ExtractFloatingIPs accepts a Page struct, specifically a FloatingIPPage
// struct, and extracts the elements into a slice of FloatingIP structs. In
// other words, a generic collection is mapped into a relevant slice.
func ExtractFloatingIPs(r pagination.Page) ([]FloatingIP, error) {
var s struct {
FloatingIPs []FloatingIP `json:"floatingips"`
}
err := (r.(FloatingIPPage)).ExtractInto(&s)
return s.FloatingIPs, err
}
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