package com.genersoft.iot.vmp.utils.redis;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONReader;
import com.alibaba.fastjson2.JSONWriter;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.nio.charset.Charset;

/**    
 * @description:使用fastjson实现redis的序列化   
 * @author: swwheihei
 * @date:   2020年5月6日 下午8:40:11     
 */
public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {

	public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");
	 
    private Class<T> clazz;
 
    public FastJsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }
 
    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONString(t, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.WritePairAsJavaBean).getBytes(DEFAULT_CHARSET);
    }
 
    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);
        return JSON.parseObject(str, clazz, JSONReader.Feature.SupportAutoType);
    }


}