@Override
public AggregateCount getCounts(String name, Interval interval, DateTimeField resolution) {
DateTime end = interval.getEnd();
Chronology c = interval.getChronology();
DurationField resolutionDuration = resolution.getDurationField();
long[] counts;
if (resolutionDuration.getUnitMillis() == DateTimeConstants.MILLIS_PER_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)) {
hours.add(getMinCountsForHour(name, dt));
dt.add(step);
}
counts =
MetricUtils.concatArrays(
hours,
interval.getStart().getMinuteOfHour(),
interval.toPeriod().toStandardMinutes().getMinutes() + 1,
60);
} else if (resolutionDuration.getUnitMillis() == DateTimeConstants.MILLIS_PER_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,
24);
} else {
throw new IllegalArgumentException("Only minute or hour resolution is currently supported");
}
return new AggregateCount(name, interval, counts, resolution);
}
private DateTimeField convertField(DateTimeField field, HashMap<Object, Object> converted) {
if (field == null || !field.isSupported()) {
return field;
}
if (converted.containsKey(field)) {
return (DateTimeField) converted.get(field);
}
ZonedDateTimeField zonedField =
new ZonedDateTimeField(
field,
getZone(),
convertField(field.getDurationField(), converted),
convertField(field.getRangeDurationField(), converted),
convertField(field.getLeapDurationField(), converted));
converted.put(field, zonedField);
return zonedField;
}