public void updateAdministrator(
Long id, String username, String password, String name, String email)
throws EntityDoesNotExistsException, MyConstraintViolationException {
try {
Administrator administrator = em.find(Administrator.class, id);
if (administrator == null) {
throw new EntityDoesNotExistsException("There is no administrator with that id.");
}
List<Administrator> administrators =
(List<Administrator>) em.createNamedQuery("getAllAdministrators").getResultList();
for (Administrator a : administrators) {
if (username.equals(a.getUserName())) {
throw new EntityAlreadyExistsException(
"A administrator with that username already exists.");
}
}
administrator.setUsername(username);
administrator.setPassword(password);
administrator.setName(name);
administrator.setEmail(email);
em.merge(administrator);
} catch (EntityDoesNotExistsException e) {
throw e;
} catch (ConstraintViolationException e) {
throw new MyConstraintViolationException(Utils.getConstraintViolationMessages(e));
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
AdministratorDTO administratorToDTO(Administrator administrator) {
return new AdministratorDTO(
administrator.getId(),
administrator.getUserName(),
null,
administrator.getName(),
administrator.getEmail());
}
public Administrator getAdministrator(String username) {
try {
Administrator administrator = new Administrator();
List<Administrator> administrators =
(List<Administrator>) em.createNamedQuery("getAllAdministrators").getResultList();
for (Administrator a : administrators) {
if (username.equals(a.getUserName())) {
administrator = a;
break;
}
}
return administrator;
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}
public void createAdministrator(String username, String password, String name, String email)
throws EntityAlreadyExistsException, MyConstraintViolationException {
try {
List<Administrator> administrators =
(List<Administrator>) em.createNamedQuery("getAllAdministrators").getResultList();
for (Administrator a : administrators) {
if (username.equals(a.getUserName())) {
throw new EntityAlreadyExistsException(
"A administrator with that username already exists.");
}
}
Administrator admin = new Administrator(username, password, name, email);
em.persist(admin);
} catch (EntityAlreadyExistsException e) {
throw e;
} catch (ConstraintViolationException e) {
throw new MyConstraintViolationException(Utils.getConstraintViolationMessages(e));
} catch (Exception e) {
throw new EJBException(e.getMessage());
}
}