package controller.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;

import java.time.Duration;

/**
 * @author ：huadong.chen
 * @ProjectName: springboot01helloword$
 * @Package: com.springboot.controller.config$
 * @ClassName: RedisConfig$
 * @date ：Created in 2020-07-12 09:55
 * @description：redis配置類
 * @modified By：
 * @version: 1.01
 */
@Configuration
public class RedisConfig {

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 覆蓋redisTemplate
     * @param redisConnectionFactory
     * @return
     */
    @Bean
    public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
        //配置具體的序列方式
        Jackson2JsonRedisSerializer<Object> objectJackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
        redisTemplate.setKeySerializer(objectJackson2JsonRedisSerializer);
        redisTemplate.setValueSerializer(objectJackson2JsonRedisSerializer);
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        return redisTemplate;
    }

    /**
     * 自定義cache快取機制
     * @param factory
     * @return
     */
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory factory){
        Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<>(Object.class);
        //轉換異常處理
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(om);
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                // 設定快取過期時間為一天
                .entryTtl(Duration.ofDays(1))
                //儲存序列方式
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(serializer))
                .disableCachingNullValues();
        RedisCacheManager build = RedisCacheManager
                .builder(factory)
                .cacheDefaults(redisCacheConfiguration)
                .build();
        return build;
    }
}