openstack/compute/v2/extensions/secgroups/results.go

package secgroups

import (
	"github.com/mitchellh/mapstructure"

	"github.com/rackspace/gophercloud/pagination"
)

type SecurityGroup struct {
	ID          string
	Name        string
	Description string
	Rules       []Rule
	TenantID    string `mapstructure:"tenant_id"`
}

type Rule struct {
	ID         string
	FromPort   int     `mapstructure:"from_port"`
	ToPort     int     `mapstructure:"to_port"`
	IPProtocol string  `mapstructure:"ip_protocol"`
	IPRange    IPRange `mapstructure:"ip_range"`
}

type IPRange struct {
	CIDR string
}

// RolePage is a single page of a user Role collection.
type SecurityGroupPage struct {
	pagination.SinglePageBase
}

// IsEmpty determines whether or not a page of Security Groups contains any results.
func (page SecurityGroupPage) IsEmpty() (bool, error) {
	users, err := ExtractSecurityGroups(page)
	if err != nil {
		return false, err
	}
	return len(users) == 0, nil
}

// ExtractSecurityGroups returns a slice of SecurityGroups contained in a single page of results.
func ExtractSecurityGroups(page pagination.Page) ([]SecurityGroup, error) {
	casted := page.(SecurityGroupPage).Body
	var response struct {
		SecurityGroups []SecurityGroup `mapstructure:"security_groups"`
	}

	err := mapstructure.Decode(casted, &response)
	return response.SecurityGroups, err
}