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package v3
import (
"net/http"
"time"
"github.com/digitalocean/bind_exporter/bind"
)
const (
// ServerPath is the HTTP path of the v3 server resource.
ServerPath = "/xml/v3/server"
// StatusPath is the HTTP path of the v3 status resource.
StatusPath = "/xml/v3/status"
// TasksPath is the HTTP path of the v3 tasks resource.
TasksPath = "/xml/v3/tasks"
nsstat = "nsstat"
opcode = "opcode"
qtype = "qtype"
resqtype = "resqtype"
resstats = "resstats"
)
type Statistics struct {
Memory struct{} `xml:"memory"`
Server Server `xml:"server"`
Socketmgr struct{} `xml:"socketmgr"`
Taskmgr bind.TaskManager `xml:"taskmgr"`
Views []View `xml:"views>view"`
}
type Server struct {
BootTime time.Time `xml:"boot-time"`
ConfigTime time.Time `xml:"config-time"`
Counters []Counters `xml:"counters"`
}
type View struct {
Name string `xml:"name,attr"`
Cache []bind.Gauge `xml:"cache>rrset"`
Counters []Counters `xml:"counters"`
Zones struct{} `xml:"zones>zone"`
}
type Counters struct {
Type string `xml:"type,attr"`
Counters []bind.Counter `xml:"counter"`
}
type Counter struct {
Name string `xml:"name"`
Counter int `xml:"counter"`
}
// Client implements bind.Client and can be used to query a BIND v3 API.
type Client struct {
*bind.XMLClient
}
// NewClient returns an initialized Client.
func NewClient(url string, c *http.Client) *Client {
return &Client{XMLClient: bind.NewXMLClient(url, c)}
}
// Stats implements bind.Stats.
func (c *Client) Stats(groups ...bind.StatisticGroup) (bind.Statistics, error) {
s := bind.Statistics{}
m := map[bind.StatisticGroup]bool{}
for _, g := range groups {
m[g] = true
}
var stats Statistics
if m[bind.ServerStats] || m[bind.ViewStats] {
if err := c.Get(ServerPath, &stats); err != nil {
return s, err
}
s.Server.BootTime = stats.Server.BootTime
s.Server.ConfigTime = stats.Server.ConfigTime
for _, c := range stats.Server.Counters {
switch c.Type {
case opcode:
s.Server.IncomingRequests = c.Counters
case qtype:
s.Server.IncomingQueries = c.Counters
case nsstat:
s.Server.NameServerStats = c.Counters
}
}
for _, view := range stats.Views {
v := bind.View{
Name: view.Name,
Cache: view.Cache,
}
for _, c := range view.Counters {
switch c.Type {
case resqtype:
v.ResolverQueries = c.Counters
case resstats:
v.ResolverStats = c.Counters
}
}
s.Views = append(s.Views, v)
}
}
if m[bind.TaskStats] {
if err := c.Get(TasksPath, &stats); err != nil {
return s, err
}
s.TaskManager = stats.Taskmgr
}
return s, nil
}
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