1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
package networks
import (
"github.com/mitchellh/mapstructure"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/pagination"
)
type commonResult struct {
gophercloud.Result
}
// Extract is a function that accepts a result and extracts a network resource.
func (r commonResult) Extract() (*Network, error) {
if r.Err != nil {
return nil, r.Err
}
var res struct {
Network *Network `json:"network"`
}
err := mapstructure.Decode(r.Body, &res)
return res.Network, err
}
// CreateResult represents the result of a create operation.
type CreateResult struct {
commonResult
}
// GetResult represents the result of a get operation.
type GetResult struct {
commonResult
}
// DeleteResult represents the result of a delete operation.
type DeleteResult struct {
gophercloud.ErrResult
}
// Network represents, well, a network.
type Network struct {
// UUID for the network
ID string `mapstructure:"id" json:"id"`
// Human-readable name for the network. Might not be unique.
Label string `mapstructure:"label" json:"label"`
// Classless Inter-Domain Routing
CIDR string `mapstructure:"cidr" json:"cidr"`
}
// NetworkPage is the page returned by a pager when traversing over a
// collection of networks.
type NetworkPage struct {
pagination.SinglePageBase
}
// IsEmpty returns true if the NetworkPage contains no Networks.
func (r NetworkPage) IsEmpty() (bool, error) {
networks, err := ExtractNetworks(r)
if err != nil {
return true, err
}
return len(networks) == 0, nil
}
// ExtractNetworks accepts a Page struct, specifically a NetworkPage struct,
// and extracts the elements into a slice of Network structs. In other words,
// a generic collection is mapped into a relevant slice.
func ExtractNetworks(page pagination.Page) ([]Network, error) {
var resp struct {
Networks []Network `mapstructure:"networks" json:"networks"`
}
err := mapstructure.Decode(page.(NetworkPage).Body, &resp)
return resp.Networks, err
}
|
