UserCountService.java 文件源码

@Scheduled(cron = "10 * * * * ?")
void storeUserCountMetrics() {
    ZonedDateTime timestamp = ZonedDateTime.now().truncatedTo(MINUTES);

    userCountRepository.save(
        metricRegistry.getHistograms((name, metric) -> name.startsWith("discord.ws.users"))
            .entrySet().stream()
            .map(entry -> Pair.of(extractTags(entry.getKey()), (long) entry.getValue().getSnapshot().getMean()))
            .map(pair -> new UserCount()
                .bot(pair.getKey()[0])
                .guild(pair.getKey()[1])
                .status(pair.getKey()[2])
                .value(pair.getValue())
                .timestamp(timestamp))
            .collect(Collectors.toList())
    );
}