package com.dy.sso.config;
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import com.dy.common.util.NumUtil;
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import com.github.benmanes.caffeine.cache.Caffeine;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.cache.CacheManager;
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import org.springframework.cache.caffeine.CaffeineCacheManager;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.util.concurrent.TimeUnit;
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@Configuration
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public class CaffeineCacheConfiguration {
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private static final int cacheInitialCapacityDefault = 10 ;
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private static final int cacheMaximumSizeDefault = 10000 ;
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private static final int cacheDurationDefault = 720 ;
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@Value("${pipIrr.sso.cacheMaximumSize}")
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private String cacheMaximumSize ;
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@Value("${pipIrr.sso.cacheDuration}")
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private String cacheDuration ;
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/*
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initialCapacity=[integer]: 初始的缓存空间大小
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maximumSize=[long]: 缓存的最大条数
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maximumWeight=[long]: 缓存的最大权重
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expireAfterAccess=[duration]: 最后一次写入或访问后经过固定时间过期
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expireAfterWrite=[duration]: 最后一次写入后经过固定时间过期
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refreshAfterWrite=[duration]: 创建缓存或者最近一次更新缓存后经过固定的时间间隔，刷新缓存
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weakKeys: 打开key的弱引用
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weakValues：打开value的弱引用
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softValues：打开value的软引用
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recordStats：开发统计功能
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注意：
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expireAfterWrite和expireAfterAccess同时存在时，以expireAfterWrite为准。
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maximumSize和maximumWeight不可以同时使用
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weakValues和softValues不可以同时使用weakValues和softValues不可以同时使用
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*/
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@Bean
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public CacheManager cacheManager() {
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int cacheMaximumSizeInt;
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int cacheDurationInt;
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if(NumUtil.isPlusIntNumber(cacheMaximumSize)){
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cacheMaximumSizeInt = Integer.parseInt(cacheMaximumSize) ;
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}else{
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cacheMaximumSizeInt = cacheMaximumSizeDefault ;
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}
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if(NumUtil.isPlusIntNumber(cacheDuration)){
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cacheDurationInt = Integer.parseInt(cacheDuration) ;
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}else{
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cacheDurationInt = cacheDurationDefault ;
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}
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CaffeineCacheManager cacheManager = new CaffeineCacheManager();
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cacheManager.setCaffeine(Caffeine.newBuilder()
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.initialCapacity(cacheInitialCapacityDefault)
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.maximumSize(cacheMaximumSizeInt)
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.expireAfterAccess(cacheDurationInt, TimeUnit.MINUTES));
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return cacheManager;
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}
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}
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