renaming plugins -> inputs

plugins/inputs/system/net.go

@@ -0,0 +1,106 @@
+package system
+
+import (
+	"fmt"
+	"net"
+	"strings"
+
+	"github.com/influxdb/telegraf/plugins/inputs"
+)
+
+type NetIOStats struct {
+	ps PS
+
+	skipChecks bool
+	Interfaces []string
+}
+
+func (_ *NetIOStats) Description() string {
+	return "Read metrics about network interface usage"
+}
+
+var netSampleConfig = `
+  # By default, telegraf gathers stats from any up interface (excluding loopback)
+  # Setting interfaces will tell it to gather these explicit interfaces,
+  # regardless of status.
+  #
+  # interfaces = ["eth0", ... ]
+`
+
+func (_ *NetIOStats) SampleConfig() string {
+	return netSampleConfig
+}
+
+func (s *NetIOStats) Gather(acc inputs.Accumulator) error {
+	netio, err := s.ps.NetIO()
+	if err != nil {
+		return fmt.Errorf("error getting net io info: %s", err)
+	}
+
+	for _, io := range netio {
+		if len(s.Interfaces) != 0 {
+			var found bool
+
+			for _, name := range s.Interfaces {
+				if name == io.Name {
+					found = true
+					break
+				}
+			}
+
+			if !found {
+				continue
+			}
+		} else if !s.skipChecks {
+			iface, err := net.InterfaceByName(io.Name)
+			if err != nil {
+				continue
+			}
+
+			if iface.Flags&net.FlagLoopback == net.FlagLoopback {
+				continue
+			}
+
+			if iface.Flags&net.FlagUp == 0 {
+				continue
+			}
+		}
+
+		tags := map[string]string{
+			"interface": io.Name,
+		}
+
+		fields := map[string]interface{}{
+			"bytes_sent":   io.BytesSent,
+			"bytes_recv":   io.BytesRecv,
+			"packets_sent": io.PacketsSent,
+			"packets_recv": io.PacketsRecv,
+			"err_in":       io.Errin,
+			"err_out":      io.Errout,
+			"drop_in":      io.Dropin,
+			"drop_out":     io.Dropout,
+		}
+		acc.AddFields("net", fields, tags)
+	}
+
+	// Get system wide stats for different network protocols
+	// (ignore these stats if the call fails)
+	netprotos, _ := s.ps.NetProto()
+	fields := make(map[string]interface{})
+	for _, proto := range netprotos {
+		for stat, value := range proto.Stats {
+			name := fmt.Sprintf("%s_%s", strings.ToLower(proto.Protocol),
+				strings.ToLower(stat))
+			fields[name] = value
+		}
+	}
+	acc.AddFields("net", fields, nil)
+
+	return nil
+}
+
+func init() {
+	inputs.Add("net", func() inputs.Input {
+		return &NetIOStats{ps: &systemPS{}}
+	})
+}