How to use

readEvents

method

in

org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine

@Test
@SuppressWarnings("OptionalGetWithoutIsPresent")
public void testLoad_LargeAmountOfEvents() {
  int eventCount = testSubject.batchSize() + 10;
  testSubject.appendEvents(createEvents(eventCount));
  assertEquals(eventCount, testSubject.readEvents(AGGREGATE).asStream().count());
  assertEquals(eventCount - 1,
         testSubject.readEvents(AGGREGATE).asStream().reduce((a, b) -> b).get().getSequenceNumber());
}

  private List<TrackedEventMessage<?>> readEvents(int eventCount) {
    List<TrackedEventMessage<?>> result = new ArrayList<>();
    TrackingToken lastToken = null;
    while (result.size() < eventCount) {
      List<? extends TrackedEventMessage<?>> batch =
          testSubject.readEvents(lastToken, false).collect(Collectors.toList());
      for (TrackedEventMessage<?> message : batch) {
        result.add(message);
        if (logger.isDebugEnabled()) {
          logger.debug(message.getPayload() + " / " + ((DomainEventMessage<?>) message).getSequenceNumber() +
                     " => " + message.trackingToken().toString());
        }
        lastToken = message.trackingToken();
      }
    }
    return result;
  }
}