package com.lf.server.service.all;

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

import java.util.Set;
import java.util.concurrent.TimeUnit;

/**
 * Redis服务类
 * @author WWW
 */
@Service("redisService")
public class RedisService {
    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    /**
     * 获取Redis模板
     *
     * @return
     */
    public RedisTemplate<String, Object> getRedisTemplate() {
        return redisTemplate;
    }

    /**
     * 设置值到redis中
     *
     * @param key   键
     * @param value 值
     */
    public void put(String key, Object value) {
        redisTemplate.opsForValue().set(key, value);
    }

    /**
     * 设置值到redis中,并设置过期时间
     *
     * @param key     键
     * @param value   值
     * @param timeout 时间
     * @param unit    单位
     */
    public void put(String key, Object value, long timeout, TimeUnit unit) {
        redisTemplate.opsForValue().set(key, value, timeout, unit);
    }

    /**
     * 根据key获取value
     *
     * @param key 键
     * @return
     */
    public Object get(String key) {
        return redisTemplate.opsForValue().get(key);
    }

    /**
     * 是否存在key
     *
     * @param key 键
     * @return
     */
    public boolean hasKey(String key) {
        return redisTemplate.hasKey(key);
    }

    /**
     * 移除key
     *
     * @param key 键
     */
    public void delete(String key) {
        redisTemplate.delete(key);
    }

    /**
     * 清空指定键前缀
     *
     * @param subKeyString 键前缀
     */
    public void clearKeys(String subKeyString) {
        Set<String> keys = redisTemplate.keys(subKeyString + "*");
        redisTemplate.delete(keys);
    }

    /**
     * 清空所有
     */
    public void clearAll() {
        Set<String> keys = redisTemplate.keys("*");
        redisTemplate.delete(keys);
    }
}