How to use

removeTopicFromEndpointGroup

method

in

org.kaaproject.kaa.server.common.dao.impl.EndpointGroupDao

@Test
public void removeTopicFromEndpointGroup() {
 Topic first = generateTopic(null, null, "first");
 Topic second = generateTopic(first.getApplication(), null, "second");
 Topic third = generateTopic(first.getApplication(), null, "third");
 Set<Topic> topics = new HashSet<>();
 topics.add(first);
 topics.add(second);
 topics.add(third);
 EndpointGroup endpointGroup = generateEndpointGroup(first.getApplication(), topics);
 Assert.assertEquals(3, endpointGroup.getTopics().size());
 endpointGroupDao.removeTopicFromEndpointGroup(endpointGroup.getId().toString(), first.getId().toString());
 EndpointGroup group = endpointGroupDao.removeTopicFromEndpointGroup(endpointGroup.getId().toString(), second.getId().toString());
 Set<Topic> expected = new HashSet<>();
 expected.add(third);
 Assert.assertEquals(expected, group.getTopics());
}

@Override
@Transactional
public UpdateNotificationDto<EndpointGroupDto> removeTopicFromEndpointGroup(String id, String
    topicId) {
 validateSqlId(id, "Can't remove endpoint group topics "
          + topicId
          + ". Incorrect endpoint group id."
          + id);
 UpdateNotificationDto<EndpointGroupDto> dto = null;
 EndpointGroup endpointGroup = endpointGroupDao.removeTopicFromEndpointGroup(id, topicId);
 if (endpointGroup
   != null) {
  dto = new UpdateNotificationDto<>();
  HistoryDto history = addHistory(endpointGroup.toDto(), ChangeType.REMOVE_TOPIC, topicId);
  if (history
    != null) {
   dto.setAppId(history.getApplicationId());
   dto.setAppSeqNumber(history.getSequenceNumber());
  }
  dto.setChangeType(ChangeType.REMOVE_TOPIC);
  dto.setTopicId(topicId);
  dto.setGroupId(endpointGroup.getId().toString());
  dto.setPayload(endpointGroup.toDto());
 } else {
  LOG.debug("Can't remove topic [{}] from endpoint group [{}]", topicId, id);
 }
 return dto;
}