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service.go
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service.go
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// Sends anonymous reports to InfluxData
package reporting
import (
"log"
"runtime"
"sync"
"time"
"github.com/influxdata/kapacitor"
"github.com/influxdb/usage-client/v1"
)
const reportingInterval = time.Hour * 12
// Sends anonymous usage information every 12 hours.
type Service struct {
tags client.Tags
client *client.Client
clusterID string
serverID string
hostname string
version string
product string
statsTicker *time.Ticker
usageTicker *time.Ticker
closing chan struct{}
logger *log.Logger
wg sync.WaitGroup
}
func NewService(c Config, l *log.Logger) *Service {
client := client.New("")
client.URL = c.URL
return &Service{
client: client,
logger: l,
}
}
func (s *Service) Open() error {
if s.closing == nil {
s.closing = make(chan struct{})
}
// Populate published vars
s.clusterID = kapacitor.GetStringVar(kapacitor.ClusterIDVarName)
s.serverID = kapacitor.GetStringVar(kapacitor.ServerIDVarName)
s.hostname = kapacitor.GetStringVar(kapacitor.HostVarName)
s.version = kapacitor.GetStringVar(kapacitor.VersionVarName)
s.product = kapacitor.Product
// Populate anonymous tags
s.tags = make(client.Tags)
s.tags["version"] = s.version
s.tags["arch"] = runtime.GOARCH
s.tags["os"] = runtime.GOOS
// Send periodic anonymous usage stats
s.usageTicker = time.NewTicker(reportingInterval)
s.wg.Add(1)
go s.usage()
return nil
}
func (s *Service) Close() error {
if s.usageTicker != nil {
s.usageTicker.Stop()
}
if s.statsTicker != nil {
s.statsTicker.Stop()
}
if s.closing != nil {
close(s.closing)
}
s.wg.Wait()
return nil
}
func (s *Service) usage() {
defer s.wg.Done()
for {
select {
case <-s.closing:
return
case <-s.usageTicker.C:
err := s.sendUsageReport()
if err != nil {
s.logger.Println("E! error while sending usage report:", err)
}
}
}
}
// Send anonymous usage report.
func (s *Service) sendUsageReport() error {
data := client.UsageData{
Tags: s.tags,
Values: make(client.Values),
}
// Add values
data.Values[kapacitor.ClusterIDVarName] = s.clusterID
data.Values[kapacitor.ServerIDVarName] = s.serverID
data.Values[kapacitor.NumTasksVarName] = kapacitor.GetIntVar(kapacitor.NumTasksVarName)
data.Values[kapacitor.NumEnabledTasksVarName] = kapacitor.GetIntVar(kapacitor.NumEnabledTasksVarName)
data.Values[kapacitor.NumSubscriptionsVarName] = kapacitor.GetIntVar(kapacitor.NumSubscriptionsVarName)
data.Values[kapacitor.UptimeVarName] = kapacitor.Uptime().Seconds()
usage := client.Usage{
Product: kapacitor.Product,
Data: []client.UsageData{data},
}
resp, err := s.client.Save(usage)
if resp != nil {
resp.Body.Close()
}
return err
}