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Fix formatting and variable names.

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This commit is contained in:
Martín Ferrari 2015-09-16 17:06:59 +03:00
parent 13672ced48
commit 0161a36fa5
2 changed files with 38 additions and 50 deletions
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37
collector/netdev_freebsd.go
View file

@ -20,11 +20,8 @@ import (
*/
import "C"
const (
subsystem = "network"
)
type netDevCollector struct {
subsystem string
metricDescs map[string]*prometheus.Desc
}
@ -36,6 +33,7 @@ func init() {
// Network device stats.
func NewNetDevCollector() (Collector, error) {
return &netDevCollector{
subsystem: "network",
metricDescs: map[string]*prometheus.Desc{},
}, nil
}
@ -47,26 +45,21 @@ func (c *netDevCollector) Update(ch chan<- prometheus.Metric) (err error) {
}
for dev, devStats := range netDev {
for key, value := range devStats {
desc, ok := c.metricDescs[key]
if !ok {
desc = prometheus.NewDesc(
prometheus.BuildFQName(
Namespace, subsystem, key),
fmt.Sprintf(
"%s from getifaddrs().", key),
[]string{"device"},
nil,
)
c.metricDescs[key] = desc
}
desc, ok := c.metricDescs[key]
if !ok {
desc = prometheus.NewDesc(
prometheus.BuildFQName(Namespace, c.subsystem, key),
fmt.Sprintf("%s from getifaddrs().", key),
[]string{"device"},
nil,
)
c.metricDescs[key] = desc
}
v, err := strconv.ParseFloat(value, 64)
if err != nil {
return fmt.Errorf(
"Invalid value %s in netstats: %s",
value, err)
return fmt.Errorf("invalid value %s in netstats: %s", value, err)
}
ch <- prometheus.MustNewConstMetric(
desc, prometheus.GaugeValue, v, dev)
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, v, dev)
}
}
return nil
@ -96,7 +89,7 @@ func getNetDevStats() (map[string]map[string]string, error) {
devStats["transmit_multicast"] = strconv.Itoa(int(data.ifi_omcasts))
devStats["receive_drop"] = strconv.Itoa(int(data.ifi_iqdrops))
devStats["transmit_drop"] = strconv.Itoa(int(data.ifi_oqdrops))
netDev[C.GoString(ifa.ifa_name)] = devStats
netDev[C.GoString(ifa.ifa_name)] = devStats
}
}

51
collector/netdev_linux.go
View file

@ -18,19 +18,19 @@ import (
const (
procNetDev = "/proc/net/dev"
subsystem = "network"
)
var (
fieldSep = regexp.MustCompile("[ :] *")
procNetDevFieldSep = regexp.MustCompile("[ :] *")
netdevIgnoredDevices = flag.String(
"collector.netdev.ignored-devices", "^$",
"Regexp of net devices to ignore for netdev collector.")
)
type netDevCollector struct {
subsystem string
ignoredDevicesPattern *regexp.Regexp
metricDescs map[string]*prometheus.Desc
metricDescs map[string]*prometheus.Desc
}
func init() {
@ -42,38 +42,34 @@ func init() {
func NewNetDevCollector() (Collector, error) {
pattern := regexp.MustCompile(*netdevIgnoredDevices)
return &netDevCollector{
subsystem: "network",
ignoredDevicesPattern: pattern,
metricDescs: map[string]*prometheus.Desc{},
metricDescs: map[string]*prometheus.Desc{},
}, nil
}
func (c *netDevCollector) Update(ch chan<- prometheus.Metric) (err error) {
netDev, err := getNetDevStats(c.ignoredDevicesPattern)
if err != nil {
return fmt.Errorf("Couldn't get netstats: %s", err)
return fmt.Errorf("couldn't get netstats: %s", err)
}
for dev, devStats := range netDev {
for key, value := range devStats {
desc, ok := c.metricDescs[key]
if !ok {
desc = prometheus.NewDesc(
prometheus.BuildFQName(
Namespace, subsystem, key),
fmt.Sprintf(
"%s from /proc/net/dev.", key),
[]string{"device"},
nil,
)
c.metricDescs[key] = desc
}
desc, ok := c.metricDescs[key]
if !ok {
desc = prometheus.NewDesc(
prometheus.BuildFQName(Namespace, c.subsystem, key),
fmt.Sprintf("%s from /proc/net/dev.", key),
[]string{"device"},
nil,
)
c.metricDescs[key] = desc
}
v, err := strconv.ParseFloat(value, 64)
if err != nil {
return fmt.Errorf(
"Invalid value %s in netstats: %s",
value, err)
return fmt.Errorf("invalid value %s in netstats: %s", value, err)
}
ch <- prometheus.MustNewConstMetric(
desc, prometheus.GaugeValue, v, dev)
ch <- prometheus.MustNewConstMetric(desc, prometheus.GaugeValue, v, dev)
}
}
return nil
@ -95,7 +91,7 @@ func parseNetDevStats(r io.Reader, ignore *regexp.Regexp) (map[string]map[string
scanner.Scan()
parts := strings.Split(string(scanner.Text()), "|")
if len(parts) != 3 { // interface + receive + transmit
return nil, fmt.Errorf("Invalid header line in %s: %s",
return nil, fmt.Errorf("invalid header line in %s: %s",
procNetDev, scanner.Text())
}
@ -103,10 +99,9 @@ func parseNetDevStats(r io.Reader, ignore *regexp.Regexp) (map[string]map[string
netDev := map[string]map[string]string{}
for scanner.Scan() {
line := strings.TrimLeft(string(scanner.Text()), " ")
parts := fieldSep.Split(line, -1)
parts := procNetDevFieldSep.Split(line, -1)
if len(parts) != 2*len(header)+1 {
return nil, fmt.Errorf("Invalid line in %s: %s",
procNetDev, scanner.Text())
return nil, fmt.Errorf("invalid line in %s: %s", procNetDev, scanner.Text())
}
dev := parts[0][:len(parts[0])]
@ -116,8 +111,8 @@ func parseNetDevStats(r io.Reader, ignore *regexp.Regexp) (map[string]map[string
}
netDev[dev] = map[string]string{}
for i, v := range header {
netDev[dev]["receive_" + v] = parts[i+1]
netDev[dev]["transmit_" + v] = parts[i+1+len(header)]
netDev[dev]["receive_"+v] = parts[i+1]
netDev[dev]["transmit_"+v] = parts[i+1+len(header)]
}
}
return netDev, nil