milvus/internal/mq/msgstream/mqwrapper/kafka/kafka_id.go

35 lines
735 B
Go

package kafka
import (
"github.com/milvus-io/milvus/internal/common"
"github.com/milvus-io/milvus/internal/mq/msgstream/mqwrapper"
)
type kafkaID struct {
messageID int64
}
var _ mqwrapper.MessageID = &kafkaID{}
func (kid *kafkaID) Serialize() []byte {
return SerializeKafkaID(kid.messageID)
}
func (kid *kafkaID) AtEarliestPosition() bool {
return kid.messageID <= 0
}
func (kid *kafkaID) LessOrEqualThan(msgID []byte) (bool, error) {
return kid.messageID <= DeserializeKafkaID(msgID), nil
}
func SerializeKafkaID(messageID int64) []byte {
b := make([]byte, 8)
common.Endian.PutUint64(b, uint64(messageID))
return b
}
func DeserializeKafkaID(messageID []byte) int64 {
return int64(common.Endian.Uint64(messageID))
}