package collectors import ( lp "github.com/influxdata/line-protocol" "io/ioutil" "log" "strconv" "strings" "time" ) const NETSTATFILE = `/proc/net/dev` type NetstatCollector struct { MetricCollector matches map[int]string tags map[string]string } func (m *NetstatCollector) Init() error { m.name = "NetstatCollector" m.setup() m.tags = map[string]string{"type": "node"} m.matches = map[int]string{ 1: "bytes_in", 9: "bytes_out", 2: "pkts_in", 10: "pkts_out", } _, err := ioutil.ReadFile(string(NETSTATFILE)) if err == nil { m.init = true } return nil } func (m *NetstatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) { data, err := ioutil.ReadFile(string(NETSTATFILE)) if err != nil { log.Print(err.Error()) return } lines := strings.Split(string(data), "\n") for _, l := range lines { if !strings.Contains(l, ":") { continue } f := strings.Fields(l) dev := f[0][0 : len(f[0])-1] if dev == "lo" { continue } for i, name := range m.matches { v, err := strconv.ParseInt(f[i], 10, 0) if err == nil { y, err := lp.New(name, m.tags, map[string]interface{}{"value": int(float64(v) * 1.0e-3)}, time.Now()) if err == nil { *out = append(*out, y) } } } } } func (m *NetstatCollector) Close() { m.init = false return }