Example usage for org.joda.time MutableDateTime setRounding

Introduction

In this page you can find the example usage for org.joda.time MutableDateTime setRounding.

Prototype

public void setRounding(DateTimeField field) 

Source Link

Document

Sets the status of rounding to use the specified field and ROUND_FLOOR mode.

Usage

From source file:org.springframework.analytics.metrics.redis.RedisAggregateCounterRepository.java

License:Apache License

/**
 * For each query, we need to convert the interval into two variations. One is the start and end points rounded to
 * the resolution (used to calculate the number of entries to be returned from the query). The second is the start
 * and end buckets we have to retrieve which may contain entries for the interval. For example, when querying
 * at day resolution, the number of entries is the number of Joda time days between the start (rounded down to a
 * day boundary) and the end plus one day (also rounded down). However, we need load the data from the buckets
 * from the month the start day occurs in to the month end day occurs in. These are then concatenated, using the
 * start day as the start index into the first array, and writing the total number of entries in sequence from that
 * point into the combined result counts array.
 *//*www  .  j ava2s  .  co  m*/
@Override
public AggregateCounter getCounts(String name, Interval interval, AggregateCounterResolution resolution) {

    DateTime end = interval.getEnd();
    Chronology c = interval.getChronology();

    long[] counts;

    if (resolution == AggregateCounterResolution.minute) {
        // Iterate through each hour in the interval and load the minutes for it
        MutableDateTime dt = new MutableDateTime(interval.getStart());
        dt.setRounding(c.hourOfDay());
        Duration step = Duration.standardHours(1);
        List<long[]> hours = new ArrayList<long[]>();
        while (dt.isBefore(end) || dt.isEqual(end)) {
            hours.add(getMinCountsForHour(name, dt));
            dt.add(step);
        }
        counts = MetricUtils.concatArrays(hours, interval.getStart().getMinuteOfHour(),
                interval.toPeriod().toStandardMinutes().getMinutes() + 1);

    } else if (resolution == AggregateCounterResolution.hour) {
        DateTime cursor = new DateTime(c.dayOfMonth().roundFloor(interval.getStart().getMillis()));
        List<long[]> days = new ArrayList<long[]>();
        Duration step = Duration.standardHours(24);
        while (cursor.isBefore(end)) {
            days.add(getHourCountsForDay(name, cursor));
            cursor = cursor.plus(step);
        }

        counts = MetricUtils.concatArrays(days, interval.getStart().getHourOfDay(),
                interval.toPeriod().toStandardHours().getHours() + 1);

    } else if (resolution == AggregateCounterResolution.day) {
        DateTime startDay = new DateTime(c.dayOfYear().roundFloor(interval.getStart().getMillis()));
        DateTime endDay = new DateTime(c.dayOfYear().roundFloor(end.plusDays(1).getMillis()));
        int nDays = Days.daysBetween(startDay, endDay).getDays();
        DateTime cursor = new DateTime(c.monthOfYear().roundFloor(interval.getStart().getMillis()));
        List<long[]> months = new ArrayList<long[]>();
        DateTime endMonth = new DateTime(
                c.monthOfYear().roundCeiling(interval.getEnd().plusMonths(1).getMillis()));
        while (cursor.isBefore(endMonth)) {
            months.add(getDayCountsForMonth(name, cursor));
            cursor = cursor.plusMonths(1);
        }

        counts = MetricUtils.concatArrays(months, interval.getStart().getDayOfMonth() - 1, nDays);
    } else if (resolution == AggregateCounterResolution.month) {
        DateTime startMonth = new DateTime(c.monthOfYear().roundFloor(interval.getStartMillis()));
        DateTime endMonth = new DateTime(c.monthOfYear().roundFloor(end.plusMonths(1).getMillis()));
        int nMonths = Months.monthsBetween(startMonth, endMonth).getMonths();
        DateTime cursor = new DateTime(c.year().roundFloor(interval.getStartMillis()));
        List<long[]> years = new ArrayList<long[]>();
        DateTime endYear = new DateTime(c.year().roundCeiling(interval.getEnd().plusYears(1).getMillis()));
        while (cursor.isBefore(endYear)) {
            years.add(getMonthCountsForYear(name, cursor));
            cursor = cursor.plusYears(1);
        }

        counts = MetricUtils.concatArrays(years, interval.getStart().getMonthOfYear() - 1, nMonths);
    } else if (resolution == AggregateCounterResolution.year) {
        DateTime startYear = new DateTime(interval.getStart().getYear(), 1, 1, 0, 0);
        DateTime endYear = new DateTime(end.getYear() + 1, 1, 1, 0, 0);
        int nYears = Years.yearsBetween(startYear, endYear).getYears();
        Map<String, Long> yearCounts = getYearCounts(name);
        counts = new long[nYears];

        for (int i = 0; i < nYears; i++) {
            int year = startYear.plusYears(i).getYear();
            Long count = yearCounts.get(Integer.toString(year));
            if (count == null) {
                count = 0L;
            }
            counts[i] = count;
        }
    } else {
        throw new IllegalStateException("Shouldn't happen. Unhandled resolution: " + resolution);
    }
    return new AggregateCounter(name, interval, counts, resolution);
}

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From source file:org.springframework.xd.analytics.metrics.redis.RedisAggregateCounterRepository.java

License:Apache License

/**
 * For each query, we need to convert the interval into two variations. One is the start and end points rounded to
 * the resolution (used to calculate the number of entries to be returned from the query). The second is the start
 * and end buckets we have to retrieve which may contain entries for the interval. For example, when querying
 * at day resolution, the number of entries is the number of Joda time days between the start (rounded down to a
 * day boundary) and the end plus one day (also rounded down). However, we need load the data from the buckets
 * from the month the start day occurs in to the month end day occurs in. These are then concatenated, using the
 * start day as the start index into the first array, and writing the total number of entries in sequence from that
 * point into the combined result counts array.
 *//*from  w w  w .j  a va2  s  . c  om*/
@Override
public AggregateCount getCounts(String name, Interval interval, AggregateCountResolution resolution) {

    DateTime end = interval.getEnd();
    Chronology c = interval.getChronology();

    long[] counts;

    if (resolution == AggregateCountResolution.minute) {
        // Iterate through each hour in the interval and load the minutes for it
        MutableDateTime dt = new MutableDateTime(interval.getStart());
        dt.setRounding(c.hourOfDay());
        Duration step = Duration.standardHours(1);
        List<long[]> hours = new ArrayList<long[]>();
        while (dt.isBefore(end) || dt.isEqual(end)) {
            hours.add(getMinCountsForHour(name, dt));
            dt.add(step);
        }
        counts = MetricUtils.concatArrays(hours, interval.getStart().getMinuteOfHour(),
                interval.toPeriod().toStandardMinutes().getMinutes() + 1);

    } else if (resolution == AggregateCountResolution.hour) {
        DateTime cursor = new DateTime(c.dayOfMonth().roundFloor(interval.getStart().getMillis()));
        List<long[]> days = new ArrayList<long[]>();
        Duration step = Duration.standardHours(24);
        while (cursor.isBefore(end)) {
            days.add(getHourCountsForDay(name, cursor));
            cursor = cursor.plus(step);
        }

        counts = MetricUtils.concatArrays(days, interval.getStart().getHourOfDay(),
                interval.toPeriod().toStandardHours().getHours() + 1);

    } else if (resolution == AggregateCountResolution.day) {
        DateTime startDay = new DateTime(c.dayOfYear().roundFloor(interval.getStart().getMillis()));
        DateTime endDay = new DateTime(c.dayOfYear().roundFloor(end.plusDays(1).getMillis()));
        int nDays = Days.daysBetween(startDay, endDay).getDays();
        DateTime cursor = new DateTime(c.monthOfYear().roundFloor(interval.getStart().getMillis()));
        List<long[]> months = new ArrayList<long[]>();
        DateTime endMonth = new DateTime(
                c.monthOfYear().roundCeiling(interval.getEnd().plusMonths(1).getMillis()));
        while (cursor.isBefore(endMonth)) {
            months.add(getDayCountsForMonth(name, cursor));
            cursor = cursor.plusMonths(1);
        }

        counts = MetricUtils.concatArrays(months, interval.getStart().getDayOfMonth() - 1, nDays);
    } else if (resolution == AggregateCountResolution.month) {
        DateTime startMonth = new DateTime(c.monthOfYear().roundFloor(interval.getStartMillis()));
        DateTime endMonth = new DateTime(c.monthOfYear().roundFloor(end.plusMonths(1).getMillis()));
        int nMonths = Months.monthsBetween(startMonth, endMonth).getMonths();
        DateTime cursor = new DateTime(c.year().roundFloor(interval.getStartMillis()));
        List<long[]> years = new ArrayList<long[]>();
        DateTime endYear = new DateTime(c.year().roundCeiling(interval.getEnd().plusYears(1).getMillis()));
        while (cursor.isBefore(endYear)) {
            years.add(getMonthCountsForYear(name, cursor));
            cursor = cursor.plusYears(1);
        }

        counts = MetricUtils.concatArrays(years, interval.getStart().getMonthOfYear() - 1, nMonths);
    } else if (resolution == AggregateCountResolution.year) {
        DateTime startYear = new DateTime(interval.getStart().getYear(), 1, 1, 0, 0);
        DateTime endYear = new DateTime(end.getYear() + 1, 1, 1, 0, 0);
        int nYears = Years.yearsBetween(startYear, endYear).getYears();
        Map<String, Long> yearCounts = getYearCounts(name);
        counts = new long[nYears];

        for (int i = 0; i < nYears; i++) {
            int year = startYear.plusYears(i).getYear();
            Long count = yearCounts.get(Integer.toString(year));
            if (count == null) {
                count = 0L;
            }
            counts[i] = count;
        }
    } else {
        throw new IllegalStateException("Shouldn't happen. Unhandled resolution: " + resolution);
    }
    return new AggregateCount(name, interval, counts, resolution);
}

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