@Test
public void test_aggregationByDay() throws Exception {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 1, 1, 0, 0, utc);
DateTime endDate = new DateTime(2014, 1, 3, 3, 0, utc);
ListDataPointGroup group = new ListDataPointGroup("aggregationByDay");
for (DateTime hour = startDate; hour.isBefore(endDate); hour = hour.plusHours(1)) {
group.addDataPoint(new LongDataPoint(hour.getMillis(), 1L));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.DAYS));
aggregator.setAlignSampling(false);
DataPointGroup dayCount = aggregator.aggregate(group);
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(24L));
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(24L));
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(3L));
assertThat(dayCount.hasNext(), is(false));
}
@Test
public void test_aggregationBySecond() throws Exception {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 1, 1, 0, 0, 0, 0, utc);
DateTime endDate = new DateTime(2014, 1, 1, 0, 0, 2, 200, utc);
ListDataPointGroup group = new ListDataPointGroup("aggregationByDay");
for (DateTime milliSecond = startDate;
milliSecond.isBefore(endDate);
milliSecond = milliSecond.plus(100)) {
group.addDataPoint(new LongDataPoint(milliSecond.getMillis(), 1L));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.SECONDS));
aggregator.setAlignSampling(false);
DataPointGroup dayCount = aggregator.aggregate(group);
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(10L));
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(10L));
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(2L));
assertThat(dayCount.hasNext(), is(false));
}
@Test
public void test_aggregationByYearOverLeapYears() {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2010, 1, 1, 0, 0, utc);
DateTime endDate = new DateTime(2014, 1, 1, 0, 0, utc);
ListDataPointGroup dpGroup = new ListDataPointGroup("range_test");
for (DateTime iterationDT = startDate;
iterationDT.isBefore(endDate);
iterationDT = iterationDT.plusDays(1)) {
dpGroup.addDataPoint(new LongDataPoint(iterationDT.getMillis(), 1));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.YEARS));
aggregator.setAlignSampling(false);
DataPointGroup dayCount = aggregator.aggregate(dpGroup);
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(365L)); // 2010
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(365L)); // 2011
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(366L)); // 2012
assertThat(dayCount.hasNext(), is(true));
assertThat(dayCount.next().getLongValue(), is(365L)); // 2013
assertThat(dayCount.hasNext(), is(false));
}
@Test
public void test_yearAggregationWithoutLeapYears() {
DateTimeZone utc = DateTimeZone.UTC;
ListDataPointGroup dpGroup = new ListDataPointGroup("range_test");
DateTime startDate = new DateTime(2014, 1, 1, 0, 0, utc);
for (DateTime date = startDate;
date.isBefore(new DateTime(2015, 6, 2, 0, 0, utc));
date = date.plusMonths(1)) {
dpGroup.addDataPoint(new LongDataPoint(date.getMillis(), 1));
}
SumAggregator agg = new SumAggregator(new DoubleDataPointFactoryImpl());
agg.setSampling(new Sampling(1, TimeUnit.YEARS));
agg.setAlignSampling(false);
agg.setStartTime(startDate.getMillis());
DataPointGroup aggregated = agg.aggregate(dpGroup);
assertThat(aggregated.hasNext(), is(true));
assertThat(aggregated.next().getLongValue(), is(12L));
assertThat(aggregated.hasNext(), is(true));
assertThat(aggregated.next().getLongValue(), is(6L));
assertThat(aggregated.hasNext(), is(false));
}
@Test
public void test_aggregationByHourOverMarch_dst() {
ListDataPointGroup group = new ListDataPointGroup("March");
DateTimeZone paris = DateTimeZone.forID("Europe/Paris");
for (DateTime hour = new DateTime(2014, 3, 1, 0, 0, paris); // 1st of March
hour.isBefore(new DateTime(2014, 4, 1, 0, 0, paris)); // 1st of April
hour = hour.plusHours(1)) {
group.addDataPoint(new LongDataPoint(hour.getMillis(), 1L));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setTimeZone(paris);
aggregator.setSampling(new Sampling(1, TimeUnit.MONTHS));
aggregator.setAlignSampling(true);
DataPointGroup hourCount = aggregator.aggregate(group);
assert hourCount.hasNext();
// 31 * 24 - 1 = 743 hours in March
assertThat(hourCount.next().getLongValue(), is(743L));
assertThat(hourCount.hasNext(), is(false));
}
@Test
public void test_aggregationByMilliSecond() throws Exception {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 1, 1, 0, 0, 0, 0, utc);
DateTime endDate = new DateTime(2014, 1, 1, 0, 0, 0, 3, utc);
ListDataPointGroup group = new ListDataPointGroup("aggregationByDay");
for (DateTime milliSecond = startDate;
milliSecond.isBefore(endDate);
milliSecond = milliSecond.plus(1)) {
group.addDataPoint(new LongDataPoint(milliSecond.getMillis(), 1L));
group.addDataPoint(new LongDataPoint(milliSecond.getMillis(), 1L));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.MILLISECONDS));
aggregator.setAlignSampling(false);
aggregator.setStartTime(startDate.getMillis());
DataPointGroup dayCount = aggregator.aggregate(group);
assertThat(dayCount.hasNext(), is(true));
DataPoint firstMillis = dayCount.next();
assertThat(new DateTime(firstMillis.getTimestamp(), utc), equalTo(startDate));
assertThat(firstMillis.getLongValue(), is(2L));
assertThat(dayCount.hasNext(), is(true));
DataPoint secondMillis = dayCount.next();
assertThat(new DateTime(secondMillis.getTimestamp(), utc), equalTo(startDate.plus(1)));
assertThat(secondMillis.getLongValue(), is(2L));
assertThat(dayCount.hasNext(), is(true));
DataPoint thirdMillis = dayCount.next();
assertThat(new DateTime(thirdMillis.getTimestamp(), utc), equalTo(startDate.plus(2)));
assertThat(thirdMillis.getLongValue(), is(2L));
assertThat(dayCount.hasNext(), is(false));
}
@Test
public void test_aggregateByMonthStartAtMidMonthDontAlign() {
ListDataPointGroup dpGroup = new ListDataPointGroup("range_test");
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 3, 10, 0, 0, utc);
DateTime stopDate = new DateTime(2014, 5, 23, 0, 0, utc);
for (DateTime iterationDT = startDate;
iterationDT.isBefore(stopDate);
iterationDT = iterationDT.plusDays(1)) {
dpGroup.addDataPoint(new LongDataPoint(iterationDT.getMillis(), 1));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.MONTHS));
aggregator.setAlignSampling(false);
aggregator.setStartTime(startDate.getMillis());
DataPointGroup aggregated = aggregator.aggregate(dpGroup);
assertThat(aggregated.hasNext(), is(true));
DataPoint marchDataPoint = aggregated.next();
assertThat(new DateTime(marchDataPoint.getTimestamp(), utc), equalTo(startDate));
assertThat(marchDataPoint.getLongValue(), is(31L));
assertThat(aggregated.hasNext(), is(true));
DataPoint aprilDataPoint = aggregated.next();
assertThat(new DateTime(aprilDataPoint.getTimestamp(), utc), equalTo(startDate.plusMonths(1)));
assertThat(aprilDataPoint.getLongValue(), is(30L));
assertThat(aggregated.hasNext(), is(true));
DataPoint mayMonthDataPoint = aggregated.next();
assertThat(
new DateTime(mayMonthDataPoint.getTimestamp(), utc), equalTo(startDate.plusMonths(2)));
assertThat(mayMonthDataPoint.getLongValue(), is(13L));
assertThat(aggregated.hasNext(), is(false));
}
/**
* This makes test makes the RangeAggregator do time calculations larger than an int.
*
* @throws Exception
*/
@Test
public void test_aggregationByMilliSecondOverLongRange() throws Exception {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 1, 1, 0, 0, 0, 0, utc);
DateTime endDate = new DateTime(2014, 3, 1, 0, 0, 0, 0, utc);
ListDataPointGroup group = new ListDataPointGroup("aggregationByDay");
for (DateTime milliSecond = startDate;
milliSecond.isBefore(endDate);
milliSecond = milliSecond.plus(10000)) {
group.addDataPoint(new LongDataPoint(milliSecond.getMillis(), 1L));
group.addDataPoint(new LongDataPoint(milliSecond.getMillis(), 1L));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.MILLISECONDS));
aggregator.setAlignSampling(false);
aggregator.setStartTime(startDate.getMillis());
DataPointGroup dpg = aggregator.aggregate(group);
while (dpg.hasNext()) dpg.next();
}
@Test
public void test_multipleMonthAggregationWithUTC() {
ListDataPointGroup dpGroup = new ListDataPointGroup("range_test");
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2014, 1, 1, 1, 1, utc); // LEAP year
DateTime stopDate = new DateTime(2014, 7, 10, 1, 1, utc);
for (DateTime iterationDT = startDate;
iterationDT.isBefore(stopDate);
iterationDT = iterationDT.plusDays(1)) {
dpGroup.addDataPoint(new LongDataPoint(iterationDT.getMillis(), 1));
}
SumAggregator agg = new SumAggregator(new DoubleDataPointFactoryImpl());
agg.setSampling(new Sampling(3, TimeUnit.MONTHS));
agg.setAlignSampling(false);
agg.setStartTime(startDate.getMillis());
DataPointGroup dpg = agg.aggregate(dpGroup);
assertThat(dpg.hasNext(), is(true));
DataPoint next = dpg.next();
assertThat(new DateTime(next.getTimestamp(), utc), is(new DateTime(2014, 1, 1, 1, 1, utc)));
assertThat(next.getLongValue(), is(90L)); // 31 + 28 + 31
assertThat(dpg.hasNext(), is(true));
next = dpg.next();
assertThat(new DateTime(next.getTimestamp(), utc), is(new DateTime(2014, 4, 1, 1, 1, utc)));
assertThat(next.getLongValue(), is(91L)); // 30 + 31 + 30
assertThat(dpg.hasNext(), is(true));
next = dpg.next();
assertThat(new DateTime(next.getTimestamp(), utc), is(new DateTime(2014, 7, 1, 1, 1, utc)));
assertThat(next.getLongValue(), is(9L)); // 10
assertThat(dpg.hasNext(), is(false));
}
@Test
public void test_aggregationByWeekAlign() {
DateTimeZone utc = DateTimeZone.UTC;
DateTime startDate = new DateTime(2015, 1, 2, 1, 11, utc);
DateTime endDate = new DateTime(2015, 1, 18, 11, 11, utc);
ListDataPointGroup dpGroup = new ListDataPointGroup("range_test");
for (DateTime iterationDT = startDate;
iterationDT.isBefore(endDate);
iterationDT = iterationDT.plusDays(1)) {
dpGroup.addDataPoint(new LongDataPoint(iterationDT.getMillis(), 1));
}
SumAggregator aggregator = new SumAggregator(new DoubleDataPointFactoryImpl());
aggregator.setSampling(new Sampling(1, TimeUnit.WEEKS));
aggregator.setAlignSampling(true);
aggregator.setAlignStartTime(true);
aggregator.setStartTime(startDate.getMillis());
DataPointGroup aggregated = aggregator.aggregate(dpGroup);
assertThat(aggregated.hasNext(), is(true));
DateTime firstWeekStart = new DateTime(2014, 12, 29, 0, 0, utc);
DataPoint firstWeekDataPoint = aggregated.next();
assertThat(new DateTime(firstWeekDataPoint.getTimestamp(), utc), equalTo(firstWeekStart));
assertThat(firstWeekDataPoint.getLongValue(), is(3L));
assertThat(aggregated.hasNext(), is(true));
DateTime secondWeekStart = new DateTime(2015, 1, 5, 0, 0, utc);
DataPoint secondWeekDataPoint = aggregated.next();
assertThat(new DateTime(secondWeekDataPoint.getTimestamp(), utc), equalTo(secondWeekStart));
assertThat(secondWeekDataPoint.getLongValue(), is(7L));
assertThat(aggregated.hasNext(), is(true));
DateTime thirdWeekStart = new DateTime(2015, 1, 12, 0, 0, utc);
DataPoint thirdWeekDataPoint = aggregated.next();
assertThat(new DateTime(thirdWeekDataPoint.getTimestamp(), utc), equalTo(thirdWeekStart));
assertThat(thirdWeekDataPoint.getLongValue(), is(7L));
assertThat(aggregated.hasNext(), is(false));
}
