package com.example.server.utils;

import net.oschina.j2cache.cache.support.J2CacheCacheManger;
import org.springframework.cache.Cache;
import org.springframework.cache.support.SimpleValueWrapper;

public class CacheUtils {

    private static J2CacheCacheManger manager;

    private static Cache getCache(String cacheName) {
        if (manager == null) {
            manager = SpringContextUtils.getBean(J2CacheCacheManger.class);
        }
        return manager.getCache(cacheName);
    }

    public static Object get(String cacheName, Object key) {
        Object value = getCache(cacheName).get(key);
        if (value instanceof SimpleValueWrapper) {// 存在缓存
            return ((SimpleValueWrapper) value).get();
        }
        return null;
    }

    public static void put(String cacheName, Object key, Object value) {
        getCache(cacheName).put(key, value);
    }

    public static void remove(String cacheName, Object key) {
        getCache(cacheName).evict(key);
    }

    public static void removeAll(String cacheName) {
        getCache(cacheName).clear();
    }
}