41 lines
1.0 KiB
Java
41 lines
1.0 KiB
Java
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package cn.hezhaohui.thumb.manager.cache;
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import com.github.benmanes.caffeine.cache.Cache;
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import com.github.benmanes.caffeine.cache.Caffeine;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.context.annotation.Bean;
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import org.springframework.stereotype.Component;
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import java.util.concurrent.TimeUnit;
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@Component
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@Slf4j
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public class CacheManager {
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private TopK hotKeyDetector;
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private Cache<String, Object> localCache;
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@Bean
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public TopK getHotKeyDetector() {
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return hotKeyDetector = new HeavyKeeper(
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// 监控 Top 100 Key
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100,
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// 宽度
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100000,
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// 深度
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5,
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// 衰减系数
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0.92,
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// 最小出现 10 次才记录
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10
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);
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}
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@Bean
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public Cache<String, Object> localCache() {
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return localCache = Caffeine.newBuilder()
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.maximumSize(1000)
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.expireAfterWrite(5, TimeUnit.MINUTES)
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.build();
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}
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}
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