cc-metric-collector/sinks/influxSink.go

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package sinks
import (
"context"
"errors"
"fmt"
influxdb2 "github.com/influxdata/influxdb-client-go/v2"
influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
"log"
"time"
)
type InfluxSink struct {
Sink
client influxdb2.Client
writeApi influxdb2Api.WriteAPIBlocking
retPolicy string
}
func (s *InfluxSink) connect() error {
var auth string
uri := fmt.Sprintf("http://%s:%s", s.host, s.port)
if len(s.user) == 0 {
auth = s.password
} else {
auth = fmt.Sprintf("%s:%s", s.user, s.password)
}
log.Print("Using URI ", uri, " Org ", s.organization, " Bucket ", s.database)
s.client = influxdb2.NewClient(uri, auth)
s.writeApi = s.client.WriteAPIBlocking(s.organization, s.database)
return nil
}
func (s *InfluxSink) Init(config SinkConfig) error {
if len(config.Host) == 0 ||
len(config.Port) == 0 ||
len(config.Database) == 0 ||
len(config.Organization) == 0 ||
len(config.Password) == 0 {
return errors.New("Not all configuration variables set required by InfluxSink")
}
s.host = config.Host
s.port = config.Port
s.database = config.Database
s.organization = config.Organization
s.user = config.User
s.password = config.Password
return s.connect()
}
func (s *InfluxSink) Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error {
p := influxdb2.NewPoint(measurement, tags, fields, t)
err := s.writeApi.WritePoint(context.Background(), p)
return err
}
func (s *InfluxSink) Close() {
log.Print("Closing InfluxDB connection")
s.client.Close()
}