RocketMQ源码 Broker-BrokerStatsManager Broker统计管理组件源码分析

前言

BrokerStatsManager 主要负责对broker端的系统指标进行统计，如QUEUE_GET_NUMS队列获取数量、QUEUE_GET_SIZE队列获取大小指标的 分钟、小时、天级别的统计数据。它针对的所有指标都是使用后台定时调度线程，对统计条目中的数据进行后台统计计算，存储在统计条目中的对应集合里，以便使用。

源码版本：4.9.3

源码架构图

核心数据结构

最核心的是维护了一个数据统计table，key为统计名称，value为统计条目Set。

// Broker统计信息管理
public class BrokerStatsManager {

    // Broker统计调度线程池
    private final ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
        "BrokerStatsThread"));

    // 商业化统计调度线程池
    private final ScheduledExecutorService commercialExecutor = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
        "CommercialStatsThread"));

    // 核心数据结构，数据统计table，key为统计名称，value为统计条目Set
    private final HashMap<String, StatsItemSet> statsTable = new HashMap<String, StatsItemSet>();
    // 集群名称
    private final String clusterName;
    // 是否开启队列统计
    private final boolean enableQueueStat;

    // 统计条目跌落大小
    private final MomentStatsItemSet momentStatsItemSetFallSize = new MomentStatsItemSet(GROUP_GET_FALL_SIZE, scheduledExecutorService, log);
    // 统计条目跌落时间
    private final MomentStatsItemSet momentStatsItemSetFallTime = new MomentStatsItemSet(GROUP_GET_FALL_TIME, scheduledExecutorService, log);

}

统计条目集合内部结构，主要维护一个统计条目表, key为统计指标细分key, value为统计指标对象。

// 统计指标集合
public class StatsItemSet {
    // 统计指标表, key为统计指标细分key, value为统计指标对象
    private final ConcurrentMap<String/* key */, StatsItem> statsItemTable =
        new ConcurrentHashMap<String, StatsItem>(128);

    // 统计名称
    private final String statsName;
    private final ScheduledExecutorService scheduledExecutorService;
    private final InternalLogger log;
}

在深入看下统计条目内部结构，维护记录指标值的value、times和记录统计快照的csListMinute、csListHour、csListDay。记录统计快照集合是通过后台线程定时加工出来的，可以在数据行为小结的源码里找到。

// 统计项
public class StatsItem {

    // 统计值
    private final LongAdder value = new LongAdder();
    // 统计次数
    private final LongAdder times = new LongAdder();
    // 统计快照时间-单位分钟
    private final LinkedList<CallSnapshot> csListMinute = new LinkedList<CallSnapshot>();
    // 统计快照时间-单位小时
    private final LinkedList<CallSnapshot> csListHour = new LinkedList<CallSnapshot>();
    // 统计快照时间-单位天
    private final LinkedList<CallSnapshot> csListDay = new LinkedList<CallSnapshot>();

    // 统计名称
    private final String statsName;
    // 统计项名称
    private final String statsKey;
    private final ScheduledExecutorService scheduledExecutorService;
    private final InternalLogger log;
}

核心行为

以下是都有维护和使用上边的内存数据结构的行为的源码 + 注释。

// Broker统计信息管理
public class BrokerStatsManager {


    public static final String QUEUE_PUT_NUMS = "QUEUE_PUT_NUMS";
    public static final String QUEUE_PUT_SIZE = "QUEUE_PUT_SIZE";
    public static final String QUEUE_GET_NUMS = "QUEUE_GET_NUMS";
    public static final String QUEUE_GET_SIZE = "QUEUE_GET_SIZE";
    public static final String TOPIC_PUT_NUMS = "TOPIC_PUT_NUMS";
    public static final String TOPIC_PUT_SIZE = "TOPIC_PUT_SIZE";
    public static final String GROUP_GET_NUMS = "GROUP_GET_NUMS";
    public static final String GROUP_GET_SIZE = "GROUP_GET_SIZE";
    public static final String SNDBCK_PUT_NUMS = "SNDBCK_PUT_NUMS";
    public static final String BROKER_PUT_NUMS = "BROKER_PUT_NUMS";
    public static final String BROKER_GET_NUMS = "BROKER_GET_NUMS";
    public static final String GROUP_GET_FROM_DISK_NUMS = "GROUP_GET_FROM_DISK_NUMS";
    public static final String GROUP_GET_FROM_DISK_SIZE = "GROUP_GET_FROM_DISK_SIZE";
    public static final String BROKER_GET_FROM_DISK_NUMS = "BROKER_GET_FROM_DISK_NUMS";
    public static final String BROKER_GET_FROM_DISK_SIZE = "BROKER_GET_FROM_DISK_SIZE";
    // For commercial
    public static final String COMMERCIAL_SEND_TIMES = "COMMERCIAL_SEND_TIMES";
    public static final String COMMERCIAL_SNDBCK_TIMES = "COMMERCIAL_SNDBCK_TIMES";
    public static final String COMMERCIAL_RCV_TIMES = "COMMERCIAL_RCV_TIMES";
    public static final String COMMERCIAL_RCV_EPOLLS = "COMMERCIAL_RCV_EPOLLS";
    public static final String COMMERCIAL_SEND_SIZE = "COMMERCIAL_SEND_SIZE";
    public static final String COMMERCIAL_RCV_SIZE = "COMMERCIAL_RCV_SIZE";
    public static final String COMMERCIAL_PERM_FAILURES = "COMMERCIAL_PERM_FAILURES";
    public static final String COMMERCIAL_OWNER = "Owner";
    // Message Size limit for one api-calling count.
    public static final double SIZE_PER_COUNT = 64 * 1024;

    public static final String GROUP_GET_FALL_SIZE = "GROUP_GET_FALL_SIZE";
    public static final String GROUP_GET_FALL_TIME = "GROUP_GET_FALL_TIME";
    // Pull Message Latency
    public static final String GROUP_GET_LATENCY = "GROUP_GET_LATENCY";

    /**
     * read disk follow stats
     */
    private static final InternalLogger log = InternalLoggerFactory.getLogger(LoggerName.ROCKETMQ_STATS_LOGGER_NAME);
    private static final InternalLogger COMMERCIAL_LOG = InternalLoggerFactory.getLogger(LoggerName.COMMERCIAL_LOGGER_NAME);

    // Broker统计调度线程池
    private final ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
        "BrokerStatsThread"));

    // 商业化统计调度线程池
    private final ScheduledExecutorService commercialExecutor = Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl(
        "CommercialStatsThread"));

    // 核心数据结构，数据统计table，key为统计名称，value为统计条目Set
    private final HashMap<String, StatsItemSet> statsTable = new HashMap<String, StatsItemSet>();
    // 集群名称
    private final String clusterName;
    // 是否开启队列统计
    private final boolean enableQueueStat;

    // 统计条目跌落大小
    private final MomentStatsItemSet momentStatsItemSetFallSize = new MomentStatsItemSet(GROUP_GET_FALL_SIZE, scheduledExecutorService, log);
    // 统计条目跌落时间
    private final MomentStatsItemSet momentStatsItemSetFallTime = new MomentStatsItemSet(GROUP_GET_FALL_TIME, scheduledExecutorService, log);

    public BrokerStatsManager(String clusterName, boolean enableQueueStat) {
        this.clusterName = clusterName;
        this.enableQueueStat = enableQueueStat;
        // 初始化统计条目集合
        if (enableQueueStat) {
            this.statsTable.put(QUEUE_PUT_NUMS, new StatsItemSet(QUEUE_PUT_NUMS, this.scheduledExecutorService, log));
            this.statsTable.put(QUEUE_PUT_SIZE, new StatsItemSet(QUEUE_PUT_SIZE, this.scheduledExecutorService, log));
            this.statsTable.put(QUEUE_GET_NUMS, new StatsItemSet(QUEUE_GET_NUMS, this.scheduledExecutorService, log));
            this.statsTable.put(QUEUE_GET_SIZE, new StatsItemSet(QUEUE_GET_SIZE, this.scheduledExecutorService, log));
        }
        this.statsTable.put(TOPIC_PUT_NUMS, new StatsItemSet(TOPIC_PUT_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(TOPIC_PUT_SIZE, new StatsItemSet(TOPIC_PUT_SIZE, this.scheduledExecutorService, log));
        this.statsTable.put(GROUP_GET_NUMS, new StatsItemSet(GROUP_GET_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(GROUP_GET_SIZE, new StatsItemSet(GROUP_GET_SIZE, this.scheduledExecutorService, log));
        this.statsTable.put(GROUP_GET_LATENCY, new StatsItemSet(GROUP_GET_LATENCY, this.scheduledExecutorService, log));
        this.statsTable.put(SNDBCK_PUT_NUMS, new StatsItemSet(SNDBCK_PUT_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(BROKER_PUT_NUMS, new StatsItemSet(BROKER_PUT_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(BROKER_GET_NUMS, new StatsItemSet(BROKER_GET_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(GROUP_GET_FROM_DISK_NUMS, new StatsItemSet(GROUP_GET_FROM_DISK_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(GROUP_GET_FROM_DISK_SIZE, new StatsItemSet(GROUP_GET_FROM_DISK_SIZE, this.scheduledExecutorService, log));
        this.statsTable.put(BROKER_GET_FROM_DISK_NUMS, new StatsItemSet(BROKER_GET_FROM_DISK_NUMS, this.scheduledExecutorService, log));
        this.statsTable.put(BROKER_GET_FROM_DISK_SIZE, new StatsItemSet(BROKER_GET_FROM_DISK_SIZE, this.scheduledExecutorService, log));

        this.statsTable.put(COMMERCIAL_SEND_TIMES, new StatsItemSet(COMMERCIAL_SEND_TIMES, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_RCV_TIMES, new StatsItemSet(COMMERCIAL_RCV_TIMES, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_SEND_SIZE, new StatsItemSet(COMMERCIAL_SEND_SIZE, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_RCV_SIZE, new StatsItemSet(COMMERCIAL_RCV_SIZE, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_RCV_EPOLLS, new StatsItemSet(COMMERCIAL_RCV_EPOLLS, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_SNDBCK_TIMES, new StatsItemSet(COMMERCIAL_SNDBCK_TIMES, this.commercialExecutor, COMMERCIAL_LOG));
        this.statsTable.put(COMMERCIAL_PERM_FAILURES, new StatsItemSet(COMMERCIAL_PERM_FAILURES, this.commercialExecutor, COMMERCIAL_LOG));
    }

    public MomentStatsItemSet getMomentStatsItemSetFallSize() {
        return momentStatsItemSetFallSize;
    }

    public MomentStatsItemSet getMomentStatsItemSetFallTime() {
        return momentStatsItemSetFallTime;
    }

    public void start() {
    }

    public void shutdown() {
        this.scheduledExecutorService.shutdown();
        this.commercialExecutor.shutdown();
    }

    // 获取指定统计名称下的统计key的统计条目
    public StatsItem getStatsItem(final String statsName, final String statsKey) {
        try {
            return this.statsTable.get(statsName).getStatsItem(statsKey);
        } catch (Exception e) {
        }

        return null;
    }

    // 删除指定topic的统计数据
    public void onTopicDeleted(final String topic) {
        this.statsTable.get(TOPIC_PUT_NUMS).delValue(topic);
        this.statsTable.get(TOPIC_PUT_SIZE).delValue(topic);
        if (enableQueueStat) {
            this.statsTable.get(QUEUE_PUT_NUMS).delValueByPrefixKey(topic, "@");
            this.statsTable.get(QUEUE_PUT_SIZE).delValueByPrefixKey(topic, "@");
        }
        this.statsTable.get(GROUP_GET_NUMS).delValueByPrefixKey(topic, "@");
        this.statsTable.get(GROUP_GET_SIZE).delValueByPrefixKey(topic, "@");
        this.statsTable.get(QUEUE_GET_NUMS).delValueByPrefixKey(topic, "@");
        this.statsTable.get(QUEUE_GET_SIZE).delValueByPrefixKey(topic, "@");
        this.statsTable.get(SNDBCK_PUT_NUMS).delValueByPrefixKey(topic, "@");
        this.statsTable.get(GROUP_GET_LATENCY).delValueByInfixKey(topic, "@");
        this.momentStatsItemSetFallSize.delValueByInfixKey(topic, "@");
        this.momentStatsItemSetFallTime.delValueByInfixKey(topic, "@");
    }

    // 根据group删除统计数据
    public void onGroupDeleted(final String group) {
        this.statsTable.get(GROUP_GET_NUMS).delValueBySuffixKey(group, "@");
        this.statsTable.get(GROUP_GET_SIZE).delValueBySuffixKey(group, "@");
        if (enableQueueStat) {
            this.statsTable.get(QUEUE_GET_NUMS).delValueBySuffixKey(group, "@");
            this.statsTable.get(QUEUE_GET_SIZE).delValueBySuffixKey(group, "@");
        }
        this.statsTable.get(SNDBCK_PUT_NUMS).delValueBySuffixKey(group, "@");
        this.statsTable.get(GROUP_GET_LATENCY).delValueBySuffixKey(group, "@");
        this.momentStatsItemSetFallSize.delValueBySuffixKey(group, "@");
        this.momentStatsItemSetFallTime.delValueBySuffixKey(group, "@");
    }

    // 增加队列的put统计数据1次
    public void incQueuePutNums(final String topic, final Integer queueId) {
        if (enableQueueStat) {
            this.statsTable.get(QUEUE_PUT_NUMS).addValue(buildStatsKey(topic, queueId), 1, 1);
        }
    }

    // 增加队列的put统计数据n次
    public void incQueuePutNums(final String topic, final Integer queueId, int num, int times) {
        if (enableQueueStat) {
            this.statsTable.get(QUEUE_PUT_NUMS).addValue(buildStatsKey(topic, queueId), num, times);
        }
    }
    // 增加队列的put统计数据大小
    public void incQueuePutSize(final String topic, final Integer queueId, final int size) {
        if (enableQueueStat) {
            this.statsTable.get(QUEUE_PUT_SIZE).addValue(buildStatsKey(topic, queueId), size, 1);
        }
    }

    // 增加队列的get统计数据1次
    public void incQueueGetNums(final String group, final String topic, final Integer queueId, final int incValue) {
        if (enableQueueStat) {
            final String statsKey = buildStatsKey(topic, queueId, group);
            this.statsTable.get(QUEUE_GET_NUMS).addValue(statsKey, incValue, 1);
        }
    }
    // 增加队列的get统计数据大小
    public void incQueueGetSize(final String group, final String topic, final Integer queueId, final int incValue) {
        if (enableQueueStat) {
            final String statsKey = buildStatsKey(topic, queueId, group);
            this.statsTable.get(QUEUE_GET_SIZE).addValue(statsKey, incValue, 1);
        }
    }

    // 增加topic的put统计数据1次
    public void incTopicPutNums(final String topic) {
        this.statsTable.get(TOPIC_PUT_NUMS).addValue(topic, 1, 1);
    }

    public void incTopicPutNums(final String topic, int num, int times) {
        this.statsTable.get(TOPIC_PUT_NUMS).addValue(topic, num, times);
    }

    public void incTopicPutSize(final String topic, final int size) {
        this.statsTable.get(TOPIC_PUT_SIZE).addValue(topic, size, 1);
    }

    // 增加group的get统计数据1次
    public void incGroupGetNums(final String group, final String topic, final int incValue) {
        final String statsKey = buildStatsKey(topic, group);
        this.statsTable.get(GROUP_GET_NUMS).addValue(statsKey, incValue, 1);
    }

    public String buildStatsKey(String topic, String group) {
        StringBuilder strBuilder;
        if (topic != null && group != null) {
            strBuilder = new StringBuilder(topic.length() + group.length() + 1);
        } else {
            strBuilder = new StringBuilder();
        }
        strBuilder.append(topic).append("@").append(group);
        return strBuilder.toString();
    }

    public String buildStatsKey(String topic, int queueId) {
        StringBuilder strBuilder;
        if (topic != null) {
            strBuilder = new StringBuilder(topic.length() + 5);
        } else {
            strBuilder = new StringBuilder();
        }
        strBuilder.append(topic).append("@").append(queueId);
        return strBuilder.toString();
    }

    public String buildStatsKey(String topic, int queueId, String group) {
        StringBuilder strBuilder;
        if (topic != null && group != null) {
            strBuilder = new StringBuilder(topic.length() + group.length() + 6);
        } else {
            strBuilder = new StringBuilder();
        }
        strBuilder.append(topic).append("@").append(queueId).append("@").append(group);
        return strBuilder.toString();
    }

    public String buildStatsKey(int queueId, String topic, String group) {
        StringBuilder strBuilder;
        if (topic != null && group != null) {
            strBuilder = new StringBuilder(topic.length() + group.length() + 6);
        } else {
            strBuilder = new StringBuilder();
        }
        strBuilder.append(queueId).append("@").append(topic).append("@").append(group);
        return strBuilder.toString();
    }

    public void incGroupGetSize(final String group, final String topic, final int incValue) {
        final String statsKey = buildStatsKey(topic, group);
        this.statsTable.get(GROUP_GET_SIZE).addValue(statsKey, incValue, 1);
    }

    // 增加group的get延迟统计数据1次
    public void incGroupGetLatency(final String group, final String topic, final int queueId, final int incValue) {
        String statsKey;
        if (enableQueueStat) {
            statsKey = buildStatsKey(queueId, topic, group);
        } else {
            statsKey = buildStatsKey(topic, group);
        }
        this.statsTable.get(GROUP_GET_LATENCY).addRTValue(statsKey, incValue, 1);
    }

    public void incBrokerPutNums() {
        this.statsTable.get(BROKER_PUT_NUMS).getAndCreateStatsItem(this.clusterName).getValue().add(1);
    }

    public void incBrokerPutNums(final int incValue) {
        this.statsTable.get(BROKER_PUT_NUMS).getAndCreateStatsItem(this.clusterName).getValue().add(incValue);
    }

    public void incBrokerGetNums(final int incValue) {
        this.statsTable.get(BROKER_GET_NUMS).getAndCreateStatsItem(this.clusterName).getValue().add(incValue);
    }

    public void incSendBackNums(final String group, final String topic) {
        final String statsKey = buildStatsKey(topic, group);
        this.statsTable.get(SNDBCK_PUT_NUMS).addValue(statsKey, 1, 1);
    }

    public double tpsGroupGetNums(final String group, final String topic) {
        final String statsKey = buildStatsKey(topic, group);
        return this.statsTable.get(GROUP_GET_NUMS).getStatsDataInMinute(statsKey).getTps();
    }

    public void recordDiskFallBehindTime(final String group, final String topic, final int queueId,
        final long fallBehind) {
        final String statsKey = buildStatsKey(queueId, topic, group);
        this.momentStatsItemSetFallTime.getAndCreateStatsItem(statsKey).getValue().set(fallBehind);
    }

    public void recordDiskFallBehindSize(final String group, final String topic, final int queueId,
        final long fallBehind) {
        final String statsKey = buildStatsKey(queueId, topic, group);
        this.momentStatsItemSetFallSize.getAndCreateStatsItem(statsKey).getValue().set(fallBehind);
    }

    public void incCommercialValue(final String key, final String owner, final String group,
        final String topic, final String type, final int incValue) {
        final String statsKey = buildCommercialStatsKey(owner, topic, group, type);
        this.statsTable.get(key).addValue(statsKey, incValue, 1);
    }

    public String buildCommercialStatsKey(String owner, String topic, String group, String type) {
        StringBuilder strBuilder = new StringBuilder();
        strBuilder.append(owner);
        strBuilder.append("@");
        strBuilder.append(topic);
        strBuilder.append("@");
        strBuilder.append(group);
        strBuilder.append("@");
        strBuilder.append(type);
        return strBuilder.toString();
    }

    public enum StatsType {
        SEND_SUCCESS,
        SEND_FAILURE,
        SEND_BACK,
        SEND_TIMER,
        SEND_TRANSACTION,
        RCV_SUCCESS,
        RCV_EPOLLS,
        PERM_FAILURE
    }
}

// 统计条目数据集合
public class MomentStatsItemSet {
    // 核心数据结构：Map<统计条目key名称，统计条目>
    private final ConcurrentMap<String/* key */, MomentStatsItem> statsItemTable =
        new ConcurrentHashMap<String, MomentStatsItem>(128);

    // 统计名称
    private final String statsName;
    // 定时调度线程池
    private final ScheduledExecutorService scheduledExecutorService;
    private final InternalLogger log;

    public MomentStatsItemSet(String statsName, ScheduledExecutorService scheduledExecutorService, InternalLogger log) {
        this.statsName = statsName;
        this.scheduledExecutorService = scheduledExecutorService;
        this.log = log;
        this.init();
    }

    public ConcurrentMap<String, MomentStatsItem> getStatsItemTable() {
        return statsItemTable;
    }

    public String getStatsName() {
        return statsName;
    }

    public void init() {

        // 每隔5分钟打印一次
        this.scheduledExecutorService.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                try {
                    printAtMinutes();
                } catch (Throwable ignored) {
                }
            }
        }, Math.abs(UtilAll.computeNextMinutesTimeMillis() - System.currentTimeMillis()), 1000 * 60 * 5, TimeUnit.MILLISECONDS);
    }

    private void printAtMinutes() {
        // 迭代遍历，打印当前统计指标所有key对应的数据
        Iterator<Entry<String, MomentStatsItem>> it = this.statsItemTable.entrySet().iterator();
        while (it.hasNext()) {
            Entry<String, MomentStatsItem> next = it.next();
            next.getValue().printAtMinutes();
        }
    }

    // 对某一个统计指标对应的统计key，设置值
    public void setValue(final String statsKey, final int value) {
        MomentStatsItem statsItem = this.getAndCreateStatsItem(statsKey);
        statsItem.getValue().set(value);
    }

    // 删除统计指标对应的统计key
    public void delValueByInfixKey(final String statsKey, String separator) {
        Iterator<Entry<String, MomentStatsItem>> it = this.statsItemTable.entrySet().iterator();
        while (it.hasNext()) {
            Entry<String, MomentStatsItem> next = it.next();
            if (next.getKey().contains(separator + statsKey + separator)) {
                it.remove();
            }
        }
    }

    // 删除统计指标对应的统计key(指定了后缀)
    public void delValueBySuffixKey(final String statsKey, String separator) {
        Iterator<Entry<String, MomentStatsItem>> it = this.statsItemTable.entrySet().iterator();
        while (it.hasNext()) {
            Entry<String, MomentStatsItem> next = it.next();
            if (next.getKey().endsWith(separator + statsKey)) {
                it.remove();
            }
        }
    }

    // 获取统计指标对应的统计条目key对应的统计条目
    public MomentStatsItem getAndCreateStatsItem(final String statsKey) {
        MomentStatsItem statsItem = this.statsItemTable.get(statsKey);
        if (null == statsItem) {
            statsItem =
                new MomentStatsItem(this.statsName, statsKey, this.scheduledExecutorService, this.log);
            MomentStatsItem prev = this.statsItemTable.putIfAbsent(statsKey, statsItem);

            if (null != prev) {
                statsItem = prev;
                // statsItem.init();
            }
        }

        return statsItem;
    }
}

// 统计条目
public class MomentStatsItem {

    // 指标值
    private final AtomicLong value = new AtomicLong(0);
    // 统计指标名称
    private final String statsName;
    // 统计条目key
    private final String statsKey;
    private final ScheduledExecutorService scheduledExecutorService;
    private final InternalLogger log;

    public MomentStatsItem(String statsName, String statsKey,
        ScheduledExecutorService scheduledExecutorService, InternalLogger log) {
        this.statsName = statsName;
        this.statsKey = statsKey;
        this.scheduledExecutorService = scheduledExecutorService;
        this.log = log;
    }

    public void init() {
        // 每5分钟打印一次
        this.scheduledExecutorService.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                try {
                    printAtMinutes();

                    MomentStatsItem.this.value.set(0);
                } catch (Throwable e) {
                }
            }
        }, Math.abs(UtilAll.computeNextMinutesTimeMillis() - System.currentTimeMillis()), 1000 * 60 * 5, TimeUnit.MILLISECONDS);
    }

    public void printAtMinutes() {
        log.info(String.format("[%s] [%s] Stats Every 5 Minutes, Value: %d",
            this.statsName,
            this.statsKey,
            this.value.get()));
    }

    public AtomicLong getValue() {
        return value;
    }

    public String getStatsKey() {
        return statsKey;
    }

    public String getStatsName() {
        return statsName;
    }
}