package com.chinaztt.mes.basic.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

/**
 * @Author: Zero
 * @Date: 2022/10/21 10:39
 * @Description:
 */
@Component
public class RedisUtils {

	@Autowired
	private RedisTemplate redisTemplate;

	/**
	 * 递增
	 * <p>最终redis中的key为 businessName:prefix</p>
	 *
	 * @param businessName 业务名
	 * @param prefix       前缀
	 * @param delta        要增加几(大于0)
	 * @return
	 */
	public long incr(String businessName, String prefix, long delta) {
		if (delta < 0) {
			throw new RuntimeException("步长必须大于0");
		}
		return redisTemplate.opsForValue().increment(businessName + ":" + prefix, delta);
	}
}