use of com.serotonin.m2m2.db.dao.pointvalue.TimeOrder in project ma-core-public by MangoAutomation.
the class PointValueDao method streamPointValues.
/**
* Stream the point values for a single point, for the time range {@code [from,to)}.
* Values are streamed in either ascending or descending time order.
*
* <p>The values should be lazily fetched from the underlying database. If this is not supported, the values should be
* pre-fetched in chunks of size {@link #chunkSize()} and buffered out.</p>
*
* <p>The limit can often be omitted, as it is only useful for implementations which pre-fetch and buffer
* with small limits (i.e. less than the {@link #chunkSize()}).</p>
*
* <p>The returned {@link Stream} <strong>must</strong> be closed, use a try-with-resources block.</p>
* <pre>{@code
* try (var stream = streamPointValues(point, from, to, null, ASCENDING)) {
* // use stream
* }
* }</pre>
*
* @param vo the data point
* @param from from time (epoch ms), inclusive
* @param to to time (epoch ms), exclusive
* @param limit maximum number of values to return (if null, no limit is applied)
* @param sortOrder time order in which to return point values
* @throws IllegalArgumentException if vo is null, if to is less than from
*/
default Stream<IdPointValueTime> streamPointValues(DataPointVO vo, @Nullable Long from, @Nullable Long to, @Nullable Integer limit, TimeOrder sortOrder, int chunkSize) {
PointValueDao.validateNotNull(vo);
PointValueDao.validateTimePeriod(from, to);
PointValueDao.validateLimit(limit);
PointValueDao.validateNotNull(sortOrder);
PointValueDao.validateChunkSize(chunkSize);
if (limit != null) {
chunkSize = Math.min(limit, chunkSize);
}
PointValueIterator it = new PointValueIterator(this, vo, from, to, chunkSize, sortOrder);
Spliterator<IdPointValueTime> spliterator = Spliterators.spliteratorUnknownSize(it, Spliterator.ORDERED | Spliterator.NONNULL | Spliterator.DISTINCT | Spliterator.SORTED);
return StreamSupport.stream(spliterator, false);
}
use of com.serotonin.m2m2.db.dao.pointvalue.TimeOrder in project ma-core-public by infiniteautomation.
the class NumericPointValueDaoTestHelper method streamPointValuesCombined.
public void streamPointValuesCombined(TimeOrder order) {
var values = timeIndexedValues();
AtomicLong count = new AtomicLong();
AtomicLong previousTime = new AtomicLong(order == TimeOrder.ASCENDING ? Long.MIN_VALUE : Long.MAX_VALUE);
Set<Integer> seriesIds = new HashSet<>();
try (var stream = dao.streamPointValuesCombined(vos, startTs, endTs, null, order)) {
stream.forEach(pvt -> {
long lastTimestamp = previousTime.getAndSet(pvt.getTime());
count.incrementAndGet();
PointValueTime expectedValue = values.get(pvt.getSeriesId()).get(pvt.getTime());
seriesIds.add(pvt.getSeriesId());
if (order == TimeOrder.ASCENDING) {
Assert.assertTrue(pvt.getTime() >= lastTimestamp);
} else {
Assert.assertTrue(pvt.getTime() <= lastTimestamp);
}
Assert.assertNotNull(expectedValue);
Assert.assertEquals(expectedValue.getValue(), pvt.getValue());
});
}
Assert.assertEquals(vos.size(), seriesIds.size());
Assert.assertEquals(totalSampleCount * 2, count.get());
}
use of com.serotonin.m2m2.db.dao.pointvalue.TimeOrder in project ma-core-public by infiniteautomation.
the class MockPointValueDao method streamPointValues.
@Override
public Stream<IdPointValueTime> streamPointValues(DataPointVO vo, @Nullable Long from, @Nullable Long to, @Nullable Integer limit, TimeOrder sortOrder, int chunkSize) {
PointValueDao.validateNotNull(vo);
PointValueDao.validateTimePeriod(from, to);
PointValueDao.validateLimit(limit);
PointValueDao.validateNotNull(sortOrder);
PointValueDao.validateChunkSize(chunkSize);
var values = data.getOrDefault(vo.getSeriesId(), Collections.emptyNavigableMap());
// noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (values) {
var filteredValues = filterValues(values, from, to);
if (sortOrder == TimeOrder.DESCENDING) {
filteredValues = filteredValues.descendingMap();
}
var stream = filteredValues.values().stream();
if (limit != null) {
stream = stream.limit(limit);
}
return stream.map(v -> new IdPointValueTime(vo.getSeriesId(), v.getValue(), v.getTime()));
}
}
use of com.serotonin.m2m2.db.dao.pointvalue.TimeOrder in project ma-core-public by infiniteautomation.
the class NumericPointValueDaoTestHelper method streamPointValues.
public void streamPointValues(TimeOrder order) {
Map<Long, PointValueTime> values = timeIndexedValues(vo1);
AtomicLong count = new AtomicLong();
AtomicLong previousTime = new AtomicLong(order == TimeOrder.ASCENDING ? Long.MIN_VALUE : Long.MAX_VALUE);
try (var stream = dao.streamPointValues(vo1, startTs, endTs, null, order)) {
stream.forEach(pvt -> {
long lastTimestamp = previousTime.getAndSet(pvt.getTime());
count.incrementAndGet();
PointValueTime expectedValue = values.get(pvt.getTime());
if (order == TimeOrder.ASCENDING) {
Assert.assertTrue(pvt.getTime() > lastTimestamp);
} else {
Assert.assertTrue(pvt.getTime() < lastTimestamp);
}
Assert.assertNotNull(expectedValue);
Assert.assertEquals(expectedValue.getValue(), pvt.getValue());
});
}
Assert.assertEquals(totalSampleCount, count.get());
}
use of com.serotonin.m2m2.db.dao.pointvalue.TimeOrder in project ma-core-public by infiniteautomation.
the class NumericPointValueDaoTestHelper method streamPointValuesPerPoint.
public void streamPointValuesPerPoint(TimeOrder order) {
var values = timeIndexedValues();
AtomicLong count = new AtomicLong();
AtomicLong previousTime = new AtomicLong();
Deque<Integer> seriesIds = new ArrayDeque<>();
try (var stream = dao.streamPointValuesPerPoint(vos, startTs, endTs, null, order)) {
stream.forEach(pvt -> {
if (seriesIds.contains(pvt.getSeriesId())) {
// already seen this series, ensure that it is the last one
Assert.assertEquals(pvt.getSeriesId(), (long) Objects.requireNonNull(seriesIds.peekLast()));
} else {
seriesIds.add(pvt.getSeriesId());
previousTime.set(order == TimeOrder.ASCENDING ? Long.MIN_VALUE : Long.MAX_VALUE);
}
long lastTimestamp = previousTime.getAndSet(pvt.getTime());
count.incrementAndGet();
PointValueTime expectedValue = values.get(pvt.getSeriesId()).get(pvt.getTime());
if (order == TimeOrder.ASCENDING) {
Assert.assertTrue(pvt.getTime() > lastTimestamp);
} else {
Assert.assertTrue(pvt.getTime() < lastTimestamp);
}
Assert.assertNotNull(expectedValue);
Assert.assertEquals(expectedValue.getValue(), pvt.getValue());
});
}
Assert.assertEquals(vos.size(), seriesIds.size());
Assert.assertEquals(totalSampleCount * 2, count.get());
}
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