You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
ntool-biz/core/mq/kafka/consumer_group.go

54 lines
1.2 KiB
Go

package kafka
import (
"context"
"git.noahlan.cn/noahlan/ntool/ndef"
"github.com/Shopify/sarama"
)
type ConsumerGroup struct {
sarama.ConsumerGroup
groupId string
topics []string
unMarshaler ndef.Unmarshaler
}
type ConsumerGroupConfig struct {
KafkaVersion sarama.KafkaVersion
OffsetsInitial int64
IsReturnErr bool
UnMarshaler ndef.Unmarshaler
}
func NewConsumerGroup(config *ConsumerGroupConfig, addr, topics []string, groupId string) (*ConsumerGroup, error) {
c := sarama.NewConfig()
c.Version = config.KafkaVersion
c.Consumer.Offsets.Initial = config.OffsetsInitial
c.Consumer.Return.Errors = config.IsReturnErr
client, err := sarama.NewClient(addr, c)
if err != nil {
return nil, err
}
consumerGroup, err := sarama.NewConsumerGroupFromClient(groupId, client)
if err != nil {
return nil, err
}
return &ConsumerGroup{
ConsumerGroup: consumerGroup,
groupId: groupId,
topics: topics,
unMarshaler: config.UnMarshaler,
}, nil
}
func (cg *ConsumerGroup) RegisterHandlerAndConsumer(handler sarama.ConsumerGroupHandler) {
ctx := context.Background()
for {
err := cg.ConsumerGroup.Consume(ctx, cg.topics, handler)
if err != nil {
}
}
}