public void unrollManagerInEvent(Long managerId, Long eventId)
throws EntityDoesNotExistsException, ManagerNotEnrolledException {
try {
Event event = em.find(Event.class, eventId);
if (event == null) {
throw new EntityDoesNotExistsException("There is no event with that id.");
}
Manager manager = em.find(Manager.class, managerId);
if (manager == null) {
throw new AttendantNotEnrolledException("There is no manager with that id.");
}
if (!event.getManagers().contains(manager)) {
throw new ManagerNotEnrolledException("Manager is not enrolled in that event.");
}
event.removeManager(manager);
manager.removeEvent(event);
} catch (EntityDoesNotExistsException | ManagerNotEnrolledException e) {
throw e;
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
public void enrollManagerInEvent(Long managerId, Long eventId)
throws EntityDoesNotExistsException, ManagerEnrolledException {
System.out.println("Eeeeeeeeevent ID: ");
try {
Manager manager = em.find(Manager.class, managerId);
if (manager == null) {
throw new EntityDoesNotExistsException("There is no manager with that id.");
}
Event event = em.find(Event.class, eventId);
if (event == null) {
throw new EntityDoesNotExistsException("There is no event with that id.");
}
if (event.getManagers().contains(manager)) {
throw new ManagerEnrolledException("Manager is already enrolled in that event.");
}
event.addManager(manager);
manager.addEvent(event);
} catch (EntityDoesNotExistsException | ManagerEnrolledException e) {
throw e;
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
public List<EventDTO> getAllEventsOfManager(Long id) {
Manager man = em.find(Manager.class, id);
if (man != null) {
List<Event> events = new ArrayList<>();
events = man.getEvents();
return eventsToDTOs(events);
}
return null;
}
public void updateManager(Long id, String username, String password, String name, String email)
throws EntityDoesNotExistsException, MyConstraintViolationException,
EntityAlreadyExistsException {
try {
Manager manager = em.find(Manager.class, id);
if (manager == null) {
throw new EntityDoesNotExistsException("There is no manager with that id.");
}
List<Manager> Managers =
(List<Manager>) em.createNamedQuery("getAllManagers").getResultList();
for (Manager m : Managers) {
if (username.equals(m.getUserName()) && !m.getId().equals(manager.getId())) {
throw new EntityAlreadyExistsException("That username already exists.");
}
}
manager.setUsername(username);
manager.setPassword(password);
manager.setName(name);
manager.setEmail(email);
em.merge(manager);
} catch (EntityDoesNotExistsException | EntityAlreadyExistsException e) {
throw e;
} catch (ConstraintViolationException e) {
throw new MyConstraintViolationException(Utils.getConstraintViolationMessages(e));
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
public List<EventDTO> getManagerEvents(Long managerId) throws EntityDoesNotExistsException {
try {
Manager manager = em.find(Manager.class, managerId);
if (manager == null) {
throw new EntityDoesNotExistsException("Manager does not exists.");
}
return eventsToDTOs(manager.getEvents());
} catch (EntityDoesNotExistsException e) {
throw e;
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
public ManagerDTO getManager(String username) {
try {
Manager manager = new Manager();
List<Manager> managers =
(List<Manager>) em.createNamedQuery("getAllManagers").getResultList();
for (Manager m : managers) {
if (username.equals(m.getName())) {
manager = m;
return managerToDTO(manager);
}
}
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
return null;
}
ManagerDTO managerToDTO(Manager manager) {
return new ManagerDTO(
manager.getId(), manager.getUserName(), null, manager.getName(), manager.getEmail());
}