/
producer.go
67 lines (56 loc) · 1.36 KB
/
producer.go
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package kafka
import (
"fmt"
"github.com/Shopify/sarama"
log "github.com/sirupsen/logrus"
)
type KafkaTxQueue struct {
Topic string
Data []byte
}
type producer struct {
syncProducer sarama.SyncProducer
txQueue chan KafkaTxQueue
}
type Producer interface {
Send(topic string, data []byte) error
Serve()
Shutdown() error
}
func NewProducer(brokers []string, queue chan KafkaTxQueue) (Producer, error) {
config := producerConfig()
syncPoducer, err := sarama.NewSyncProducer(brokers, config)
if err != nil {
return nil, fmt.Errorf("failed to connect to Kafka broker, %s", err)
}
producer := &producer{
syncProducer: syncPoducer,
txQueue: queue,
}
return producer, nil
}
func producerConfig() *sarama.Config {
config := sarama.NewConfig()
config.Producer.Return.Successes = true
config.Producer.RequiredAcks = sarama.WaitForAll
config.Producer.Retry.Max = 5
return config
}
func (p *producer) Shutdown() error {
return p.syncProducer.Close()
}
func (p *producer) Send(topic string, data []byte) error {
msg := &sarama.ProducerMessage{
Topic: topic,
Value: sarama.ByteEncoder(data),
}
_, _, err := p.syncProducer.SendMessage(msg)
return err
}
func (p *producer) Serve() {
for msg := range p.txQueue {
if err := p.Send(msg.Topic, msg.Data); err != nil {
log.Errorf("Failed to send msg on topic %q, %s", msg.Topic, err.Error())
}
}
}