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38 changes: 38 additions & 0 deletions
38
module-domain/src/main/java/com/mile/common/config/CacheConfig.java
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| package com.mile.common.config; | ||
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| import com.github.benmanes.caffeine.cache.Caffeine; | ||
| import com.github.benmanes.caffeine.cache.Scheduler; | ||
| import org.springframework.cache.CacheManager; | ||
| import org.springframework.cache.annotation.EnableCaching; | ||
| import org.springframework.cache.caffeine.CaffeineCacheManager; | ||
| import org.springframework.context.annotation.Bean; | ||
| import org.springframework.context.annotation.Configuration; | ||
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| import java.util.concurrent.Executors; | ||
| import java.util.concurrent.ScheduledExecutorService; | ||
| import java.util.concurrent.TimeUnit; | ||
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| @Configuration | ||
| @EnableCaching | ||
| public class CacheConfig { | ||
| @Bean | ||
| public CacheManager cacheManager() { | ||
| CaffeineCacheManager cacheManager = new CaffeineCacheManager(); | ||
| cacheManager.setCaffeine(caffeineConfig()); | ||
| return cacheManager; | ||
| } | ||
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| private Scheduler getScheduler() { | ||
| ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(); | ||
| Scheduler scheduler; | ||
| scheduler = Scheduler.forScheduledExecutorService(executor); | ||
| return scheduler; | ||
| } | ||
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| private Caffeine<Object, Object> caffeineConfig() { | ||
| return Caffeine.newBuilder() | ||
| .maximumSize(200) | ||
| .expireAfterAccess(5, TimeUnit.DAYS) | ||
| .scheduler(getScheduler()); | ||
| } | ||
| } |
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64
module-domain/src/main/java/com/mile/moim/service/popular/MoimPopularInfoService.java
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| package com.mile.moim.service.popular; | ||
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| import com.mile.curious.repository.dto.PostAndCuriousCountInLastWeek; | ||
| import com.mile.curious.service.CuriousRetriever; | ||
| import com.mile.moim.domain.Moim; | ||
| import com.mile.moim.domain.popular.MoimCuriousPost; | ||
| import com.mile.moim.domain.popular.MoimCuriousWriter; | ||
| import com.mile.moim.domain.popular.MoimPopularInfo; | ||
| import com.mile.moim.repository.MoimPopularInfoRepository; | ||
| import com.mile.writername.domain.WriterName; | ||
| import lombok.AccessLevel; | ||
| import lombok.RequiredArgsConstructor; | ||
| import org.springframework.cache.annotation.CachePut; | ||
| import org.springframework.cache.annotation.Cacheable; | ||
| import org.springframework.stereotype.Service; | ||
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| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
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| @Service | ||
| @RequiredArgsConstructor(access = AccessLevel.PROTECTED) | ||
| public class MoimPopularInfoService { | ||
| private final MoimPopularInfoRepository moimPopularInfoRepository; | ||
| private final CuriousRetriever curiousRetriever; | ||
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| @CachePut(value = "moimPopularInfo", key = "#moim.id") | ||
| public MoimPopularInfo setMostPopularInfoOfMoim(final Moim moim) { | ||
| List<PostAndCuriousCountInLastWeek> mostCuriousPostsInLastWeek = curiousRetriever.findMostCuriousPostsInLastWeek(moim); | ||
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| List<MoimCuriousPost> moimCuriousPosts = getMoimCuriousPost(mostCuriousPostsInLastWeek); | ||
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| List<MoimCuriousWriter> moimCuriousWriters = getMoimCuriousWriter(mostCuriousPostsInLastWeek); | ||
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| MoimPopularInfo moimPopularInfo = MoimPopularInfo.of(moim.getId(), moimCuriousPosts, moimCuriousWriters); | ||
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| return moimPopularInfoRepository.save(moimPopularInfo); | ||
| } | ||
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| private List<MoimCuriousPost> getMoimCuriousPost(final List<PostAndCuriousCountInLastWeek> mostCuriousPostsInLastWeek) { | ||
| return mostCuriousPostsInLastWeek.stream().map(p -> | ||
| MoimCuriousPost.of(p.getPost())).limit(2).toList(); | ||
| } | ||
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| private List<MoimCuriousWriter> getMoimCuriousWriter(final List<PostAndCuriousCountInLastWeek> mostCuriousPostsInLastWeek) { | ||
| Map<WriterName, Long> writerNameCount = mostCuriousPostsInLastWeek.stream() | ||
| .collect(Collectors.groupingBy(p -> p.getPost().getWriterName(), Collectors.summingLong(PostAndCuriousCountInLastWeek::getCount))); | ||
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| List<WriterName> topTwoWriters = writerNameCount.entrySet().stream() | ||
| .sorted(Map.Entry.comparingByValue()) | ||
| .limit(2) | ||
| .map(Map.Entry::getKey).toList(); | ||
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| return topTwoWriters.stream().map(MoimCuriousWriter::of).toList(); | ||
| } | ||
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| @Cacheable(value = "moimPopularInfo", key = "#moim.id") | ||
| public MoimPopularInfo getMoimPopularInfo(final Moim moim) { | ||
| return moimPopularInfoRepository.findByMoimId(moim.getId()).orElseGet( | ||
| () -> setMostPopularInfoOfMoim(moim) | ||
| ); | ||
| } | ||
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| } |