public Appointment update()

in openmeetings-db/src/main/java/org/apache/openmeetings/db/dao/calendar/AppointmentDao.java [100:157]
56 lines of code
20 McCabe index (conditional complexity)

	public Appointment update(Appointment a, Long userId, boolean sendmails) {
		Room r = a.getRoom();
		if (r.getId() == null) {
			r.setName(a.getTitle());
			r.setCapacity(cfgDao.getLong(CONFIG_CALENDAR_ROOM_CAPACITY, 50L));
		}
		a.setRoom(roomDao.update(r, userId));
		final boolean newApp = a.getId() == null;
		AppointmentDTO a0 = null;
		Set<Long> mmIds = Set.of();
		if (sendmails && !newApp) {
			Appointment prev = get(a.getId());
			if (prev != null) {
				a0 = new AppointmentDTO(prev);
			}
			mmIds = meetingMemberDao.getMeetingMemberIdsByAppointment(a.getId());
		}
		if (newApp) {
			a.setIcalId(randomUUID().toString());
			em.persist(a);
		} else {
			a = em.merge(a);
		}
		if (sendmails) {
			// update meeting members
			boolean sendMail = a0 == null
					|| !StringUtils.equals(a0.getTitle(), a.getTitle())
					|| !StringUtils.equals(a0.getDescription(), a.getDescription())
					|| !StringUtils.equals(a0.getLocation(), a.getLocation())
					|| !a0.getStart().getTime().equals(a.getStart())
					|| !a0.getEnd().getTime().equals(a.getEnd());
			List<MeetingMember> mmList = a.getMeetingMembers();
			if (mmList != null){
				for (MeetingMember mm : mmList) {
					if (mm.getId() == null || !mmIds.contains(mm.getId())) {
						invitationManager.processInvitation(a, mm, MessageType.CREATE);
					} else {
						mmIds.remove(mm.getId());
						invitationManager.processInvitation(a, mm, MessageType.UPDATE, sendMail);
					}
				}
			}
			for (long id : mmIds) {
				invitationManager.processInvitation(a, meetingMemberDao.get(id), MessageType.CANCEL);
			}
			//notify owner
			MeetingMember owner = new MeetingMember();
			owner.setUser(a.getOwner());
			if (newApp) {
				invitationManager.processInvitation(a, owner, MessageType.CREATE);
			} else if (a.isDeleted()) {
				invitationManager.processInvitation(a, owner, MessageType.CANCEL);
			} else if (sendMail) {
				invitationManager.processInvitation(a, owner, MessageType.UPDATE, sendMail);
			}
		}
		return a;
	}