40丨运用学过的设计原则和思想完善之前讲的性能计数器项目（下）1

protected MetricsStorage metricsStorage;

protected Aggregator aggregator;

protected StatViewer viewer;

long durationInMillis = endTimeInMillis - startTimeInMillis;

Map<String, List<RequestInfo>> requestInfos =

metricsStorage.getRequestInfos(startTimeInMillis, endTimeInMillis)

Map<String, RequestStat> requestStats = aggregator.aggregate(requestInfos,

viewer.output(requestStats, startTimeInMillis, endTimeInMillis);

}

}

private static final Long DAY_HOURS_IN_SECONDS = 86400L;

private MetricsStorage metricsStorage;

private Aggregator aggregator;

private StatViewer viewer;

public EmailReporter(MetricsStorage metricsStorage, Aggregator aggregator, St

this.metricsStorage = metricsStorage;

calendar.set(Calendar.HOUR_OF_DAY, 0);

calendar.set(Calendar.MINUTE, 0);

calendar.set(Calendar.SECOND, 0);

calendar.set(Calendar.MILLISECOND, 0);

Date firstTime = calendar.getTime();

Timer timer = new Timer();

timer.schedule(new TimerTask() {

@Override

public void run() {

long durationInMillis = DAY_HOURS_IN_SECONDS * 1000;

}