mikrotik-exporter/collector/wlansta_collector.go

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package collector
import (
"strconv"
"strings"
"github.com/prometheus/client_golang/prometheus"
log "github.com/sirupsen/logrus"
"gopkg.in/routeros.v2/proto"
)
type wlanSTACollector struct {
props []string
descriptions map[string]*prometheus.Desc
}
func newWlanSTACollector() routerOSCollector {
c := &wlanSTACollector{}
c.init()
return c
}
func (c *wlanSTACollector) init() {
c.props = []string{"interface", "mac-address", "signal-to-noise", "signal-strength-ch0", "packets", "bytes", "frames"}
labelNames := []string{"name", "address", "interface", "mac_address"}
c.descriptions = make(map[string]*prometheus.Desc)
for _, p := range c.props[:len(c.props)-3] {
c.descriptions[p] = descriptionForPropertyName("wlan_station", p, labelNames)
}
for _, p := range c.props[len(c.props)-3:] {
c.descriptions["tx_"+p] = descriptionForPropertyName("wlan_station", "tx_"+p, labelNames)
c.descriptions["rx_"+p] = descriptionForPropertyName("wlan_station", "rx_"+p, labelNames)
}
}
func (c *wlanSTACollector) describe(ch chan<- *prometheus.Desc) {
for _, d := range c.descriptions {
ch <- d
}
}
func (c *wlanSTACollector) collect(ctx *collectorContext) error {
stats, err := c.fetch(ctx)
if err != nil {
return err
}
for _, re := range stats {
c.collectForStat(re, ctx)
}
return nil
}
func (c *wlanSTACollector) fetch(ctx *collectorContext) ([]*proto.Sentence, error) {
reply, err := ctx.client.Run("/interface/wireless/registration-table/print", "=.proplist="+strings.Join(c.props, ","))
if err != nil {
log.WithFields(log.Fields{
"device": ctx.device.Name,
"error": err,
}).Error("error fetching wlan station metrics")
return nil, err
}
return reply.Re, nil
}
func (c *wlanSTACollector) collectForStat(re *proto.Sentence, ctx *collectorContext) {
iface := re.Map["interface"]
mac := re.Map["mac-address"]
for _, p := range c.props[2 : len(c.props)-3] {
c.collectMetricForProperty(p, iface, mac, re, ctx)
}
for _, p := range c.props[len(c.props)-3:] {
c.collectMetricForTXRXCounters(p, iface, mac, re, ctx)
}
}
func (c *wlanSTACollector) collectMetricForProperty(property, iface, mac string, re *proto.Sentence, ctx *collectorContext) {
if re.Map[property] == "" {
return
}
v, err := strconv.ParseFloat(re.Map[property], 64)
if err != nil {
log.WithFields(log.Fields{
"device": ctx.device.Name,
"property": property,
"value": re.Map[property],
"error": err,
}).Error("error parsing wlan station metric value")
return
}
desc := c.descriptions[property]
ctx.ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, v, ctx.device.Name, ctx.device.Address, iface, mac)
}
func (c *wlanSTACollector) collectMetricForTXRXCounters(property, iface, mac string, re *proto.Sentence, ctx *collectorContext) {
tx, rx, err := splitStringToFloats(re.Map[property])
if err != nil {
log.WithFields(log.Fields{
"device": ctx.device.Name,
"property": property,
"value": re.Map[property],
"error": err,
}).Error("error parsing wlan station metric value")
return
}
desc_tx := c.descriptions["tx_"+property]
desc_rx := c.descriptions["rx_"+property]
ctx.ch <- prometheus.MustNewConstMetric(desc_tx, prometheus.CounterValue, tx, ctx.device.Name, ctx.device.Address, iface, mac)
ctx.ch <- prometheus.MustNewConstMetric(desc_rx, prometheus.CounterValue, rx, ctx.device.Name, ctx.device.Address, iface, mac)
}