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Switch plugin API to use an accumulator

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This commit is contained in:
Evan Phoenix
2015-04-06 09:32:10 -07:00
parent f9250e8e39
commit d1cc82653a
12 changed files with 295 additions and 184 deletions
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64
plugins/system/system.go
View File

@@ -1,54 +1,58 @@
package system
import (
"fmt"
"github.com/influxdb/tivan/plugins"
"github.com/influxdb/tivan/plugins/system/ps/cpu"
"github.com/influxdb/tivan/plugins/system/ps/load"
"github.com/vektra/cypress"
)
type PS interface {
LoadAvg() (*load.LoadAvgStat, error)
CPUTimes() ([]cpu.CPUTimesStat, error)
}
type SystemStats struct {
ps PS
tags map[string]string
ps PS
}
func (s *SystemStats) Read() ([]*cypress.Message, error) {
func (s *SystemStats) add(acc plugins.Accumulator, name string, val float64) {
if val >= 0 {
acc.Add(name, val, nil)
}
}
func (s *SystemStats) Gather(acc plugins.Accumulator) error {
lv, err := s.ps.LoadAvg()
if err != nil {
return nil, err
return err
}
m1 := cypress.Metric()
m1.Add("type", "gauge")
m1.Add("name", "load1")
m1.Add("value", lv.Load1)
acc.Add("load1", lv.Load1, nil)
acc.Add("load5", lv.Load5, nil)
acc.Add("load15", lv.Load15, nil)
for k, v := range s.tags {
m1.AddTag(k, v)
times, err := s.ps.CPUTimes()
if err != nil {
return fmt.Errorf("error getting CPU info: %s", err)
}
m2 := cypress.Metric()
m2.Add("type", "gauge")
m2.Add("name", "load5")
m2.Add("value", lv.Load5)
for k, v := range s.tags {
m2.AddTag(k, v)
for _, cts := range times {
s.add(acc, cts.CPU+".user", cts.User)
s.add(acc, cts.CPU+".system", cts.System)
s.add(acc, cts.CPU+".idle", cts.Idle)
s.add(acc, cts.CPU+".nice", cts.Nice)
s.add(acc, cts.CPU+".iowait", cts.Iowait)
s.add(acc, cts.CPU+".irq", cts.Irq)
s.add(acc, cts.CPU+".softirq", cts.Softirq)
s.add(acc, cts.CPU+".steal", cts.Steal)
s.add(acc, cts.CPU+".guest", cts.Guest)
s.add(acc, cts.CPU+".guestNice", cts.GuestNice)
s.add(acc, cts.CPU+".stolen", cts.Stolen)
}
m3 := cypress.Metric()
m3.Add("type", "gauge")
m3.Add("name", "load15")
m3.Add("value", lv.Load15)
for k, v := range s.tags {
m3.AddTag(k, v)
}
return []*cypress.Message{m1, m2, m3}, nil
return nil
}
type systemPS struct{}
@@ -57,6 +61,10 @@ func (s *systemPS) LoadAvg() (*load.LoadAvgStat, error) {
return load.LoadAvg()
}
func (s *systemPS) CPUTimes() ([]cpu.CPUTimesStat, error) {
return cpu.CPUTimes(true)
}
func init() {
plugins.Add("system", func() plugins.Plugin {
return &SystemStats{ps: &systemPS{}}