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