telegraf/plugins/outputs/nsq/nsq.go

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package nsq
import (
"fmt"
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"github.com/influxdata/influxdb/client/v2"
"github.com/influxdata/telegraf/plugins/outputs"
"github.com/influxdata/telegraf"
"github.com/nsqio/go-nsq"
)
type NSQ struct {
Server string
Topic string
producer *nsq.Producer
}
var sampleConfig = `
# Location of nsqd instance listening on TCP
server = "localhost:4150"
# NSQ topic for producer messages
topic = "telegraf"
`
func (n *NSQ) Connect() error {
config := nsq.NewConfig()
producer, err := nsq.NewProducer(n.Server, config)
if err != nil {
return err
}
n.producer = producer
return nil
}
func (n *NSQ) Close() error {
n.producer.Stop()
return nil
}
func (n *NSQ) SampleConfig() string {
return sampleConfig
}
func (n *NSQ) Description() string {
return "Send telegraf measurements to NSQD"
}
func (n *NSQ) Write(points []*client.Point) error {
if len(points) == 0 {
return nil
}
for _, p := range points {
// Combine tags from Point and BatchPoints and grab the resulting
// line-protocol output string to write to NSQ
value := p.String()
err := n.producer.Publish(n.Topic, []byte(value))
if err != nil {
return fmt.Errorf("FAILED to send NSQD message: %s", err)
}
}
return nil
}
func init() {
outputs.Add("nsq", func() telegraf.Output {
return &NSQ{}
})
}