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			50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package kafka
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import (
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	log2 "Open_IM/pkg/common/log"
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	"github.com/Shopify/sarama"
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	"github.com/golang/protobuf/proto"
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)
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type Producer struct {
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	topic    string
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	addr     []string
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	config   *sarama.Config
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	producer sarama.SyncProducer
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}
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func NewKafkaProducer(addr []string, topic string) *Producer {
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	p := Producer{}
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	p.config = sarama.NewConfig()                             //Instantiate a sarama Config
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	p.config.Producer.Return.Successes = true                 //Whether to enable the successes channel to be notified after the message is sent successfully
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	p.config.Producer.RequiredAcks = sarama.WaitForAll        //Set producer Message Reply level 0 1 all
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	p.config.Producer.Partitioner = sarama.NewHashPartitioner //Set the hash-key automatic hash partition. When sending a message, you must specify the key value of the message. If there is no key, the partition will be selected randomly
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	p.addr = addr
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	p.topic = topic
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	producer, err := sarama.NewSyncProducer(p.addr, p.config) //Initialize the client
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	if err != nil {
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		panic(err.Error())
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		return nil
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	}
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	p.producer = producer
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	return &p
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}
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func (p *Producer) SendMessage(m proto.Message, key ...string) (int32, int64, error) {
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	kMsg := &sarama.ProducerMessage{}
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	kMsg.Topic = p.topic
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	if len(key) == 1 {
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		kMsg.Key = sarama.StringEncoder(key[0])
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	}
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	bMsg, err := proto.Marshal(m)
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	if err != nil {
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		log2.Error("", "", "proto marshal err = %s", err.Error())
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		return -1, -1, err
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	}
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	kMsg.Value = sarama.ByteEncoder(bMsg)
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	return p.producer.SendMessage(kMsg)
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}
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