public void addMeeting(String name, String location, string date, int maxNumberOfParticipants)
{
if (meetingsRepository.getMeetingsByName(name) != null)
{
return;
}
var meeting = meetingFactory.create(name, location, date, maxNumberOfParticipants);
if (meeting != null)
{
meetingsRepository.addMetting(meeting);
}
}