public User register(String name, String password, String email, Collection<Role> roles) {
Preconditions.checkNotNull(name);
Preconditions.checkNotNull(password);
if (userDAO.findByName(name) != null) {
return null;
}
User user = new User();
byte[] salt = encryptionService.generateSalt();
user.setName(name);
user.setEmail(email);
user.setSalt(salt);
user.setPassword(encryptionService.getEncryptedPassword(password, salt));
for (Role role : roles) {
user.getRoles().add(new UserRole(user, role));
}
userDAO.save(user);
return user;
}
