package com.bizzan.bitrade.kafka;

import java.util.Map;

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

public class kafkaPartitioner implements Partitioner {

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

	@Override
	public int partition(String topic, Object key, byte[] keyBytes, Object value, byte[] valueBytes, Cluster cluster) {
        // 交易相关的随机分配，其他分配到0分区
		if(topic.startsWith("exchange")) {
            return random();
        }else {
        	return 0;
        }
	}

	@Override
	public void close() {
		
	}
	
	private static int random() {
		return (int)(Math.random()*9)+1;
	}
}