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Jun 20, 2023 Replied to a topic by TWorldIsNButThis › Java › 一个 Java Optional + Stream 重构的小例子 |
@anonydmer 补充完整了点：public Optional<MyLog> lastLog(final Collection<Long> shopIds) {
return Optional.ofNullable(CollectionUtil.isEmpty(shopIds) ? null : shopIds)
.map(shopIdList -> Pair.of(shopIdList, appDao.findAllId()))
.map(pair -> pair.getFirst()
.stream()
.flatMap(shopId -> {
final LocalDate end = LocalDate.now().plusDays(1);
return pair.getSecond().stream().flatMap(appId -> logDao.findLast(appId, shopId, end).stream());
})
.max(Comparator.comparing(MyLog::getTime)))
.orElse(Optional.empty());
}
return Optional.ofNullable(CollectionUtil.isEmpty(shopIds) ? null : shopIds)
.map(shopIdList -> Pair.of(shopIdList, appDao.findAllId()))
.map(pair -> pair.getFirst()
.stream()
.flatMap(shopId -> {
final LocalDate end = LocalDate.now().plusDays(1);
return pair.getSecond().stream().flatMap(appId -> logDao.findLast(appId, shopId, end).stream());
})
.max(Comparator.comparing(MyLog::getTime)))
.orElse(Optional.empty());
}
May 18, 2023 Replied to a topic by celo › 信息安全 › 1Password 值得买吗？ |
enpass 也挺不错的可以买断，之前咸鱼 70 可买断
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