package com.ruoyi.receive.kafka.config;

import org.apache.kafka.clients.producer.Partitioner;
import org.apache.kafka.common.Cluster;
import org.apache.kafka.common.PartitionInfo;

import java.util.List;
import java.util.Map;

/**
 * 自定义分区器
 * @Author： JCC
 * @Date： 2023/8/22 22:25
 * @Description：
 */
public class MyPartitioner implements Partitioner {
    @Override
    public int partition(String topic, Object key, byte[] keyBytes, Object value, byte[] valueBytes, Cluster cluster) {
        List<PartitionInfo> partitionInfos = cluster.partitionsForTopic(topic);
        int size = partitionInfos.size();
        int parId = ((String) value).hashCode() % size;
        return parId;
    }

    @Override
    public void close() {

    }

    @Override
    public void configure(Map<String, ?> map) {

    }
}