package com.lunhan.xxx.common.cache;

import com.lunhan.xxx.common.config.SysConfig;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.lang.Nullable;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

public class RedisKeySerializer implements RedisSerializer<String> {
    private static final Charset charset = StandardCharsets.UTF_8;

    /*
     * (non-Javadoc)
     * @see org.springframework.data.redis.serializer.RedisSerializer#deserialize(byte[])
     */
    @Override
    public String deserialize(@Nullable byte[] bytes) {
        return (bytes == null ? null : new String(bytes, charset).replaceFirst(SysConfig.redis.getKeyPrefix(), ""));
    }

    /*
     * (non-Javadoc)
     * @see org.springframework.data.redis.serializer.RedisSerializer#serialize(java.lang.Object)
     */
    @Override
    public byte[] serialize(@Nullable String string) {
        return (string == null ? null : (SysConfig.redis.getKeyPrefix() + string).getBytes(charset));
    }
}