How to use

registerHandoff

method

in

org.apache.druid.segment.realtime.appenderator.StreamAppenderatorDriver

@Test(timeout = 60_000L, expected = TimeoutException.class)
public void testHandoffTimeout() throws Exception
{
 final TestCommitterSupplier<Integer> committerSupplier = new TestCommitterSupplier<>();
 segmentHandoffNotifierFactory.disableHandoff();
 Assert.assertNull(driver.startJob());
 for (int i = 0; i < ROWS.size(); i++) {
  committerSupplier.setMetadata(i + 1);
  Assert.assertTrue(driver.add(ROWS.get(i), "dummy", committerSupplier, false, true).isOk());
 }
 final SegmentsAndMetadata published = driver.publish(
   makeOkPublisher(),
   committerSupplier.get(),
   ImmutableList.of("dummy")
 ).get(PUBLISH_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
 while (driver.getSegments().containsKey("dummy")) {
  Thread.sleep(100);
 }
 driver.registerHandoff(published).get(HANDOFF_CONDITION_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
}

);
final Future<SegmentsAndMetadata> handoffFuture = driver.registerHandoff(published);
SegmentsAndMetadata handedOff = null;
if (tuningConfig.getHandoffConditionTimeout() == 0) {

final SegmentsAndMetadata segmentsAndMetadata = driver.registerHandoff(published)
                           .get(HANDOFF_CONDITION_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
Assert.assertEquals(numSegments, segmentsAndMetadata.getSegments().size());

@Test(timeout = 60_000L)
public void testSimple() throws Exception
{
 final TestCommitterSupplier<Integer> committerSupplier = new TestCommitterSupplier<>();
 Assert.assertNull(driver.startJob());
 for (int i = 0; i < ROWS.size(); i++) {
  committerSupplier.setMetadata(i + 1);
  Assert.assertTrue(driver.add(ROWS.get(i), "dummy", committerSupplier, false, true).isOk());
 }
 final SegmentsAndMetadata published = driver.publish(
   makeOkPublisher(),
   committerSupplier.get(),
   ImmutableList.of("dummy")
 ).get(PUBLISH_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
 while (driver.getSegments().containsKey("dummy")) {
  Thread.sleep(100);
 }
 final SegmentsAndMetadata segmentsAndMetadata = driver.registerHandoff(published)
                            .get(HANDOFF_CONDITION_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
 Assert.assertEquals(
   ImmutableSet.of(
     new SegmentIdWithShardSpec(DATA_SOURCE, Intervals.of("2000/PT1H"), VERSION, new NumberedShardSpec(0, 0)),
     new SegmentIdWithShardSpec(DATA_SOURCE, Intervals.of("2000T01/PT1H"), VERSION, new NumberedShardSpec(0, 0))
   ),
   asIdentifiers(segmentsAndMetadata.getSegments())
 );
 Assert.assertEquals(3, segmentsAndMetadata.getCommitMetadata());
}

).get(PUBLISH_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
driver.registerHandoff(published).get();