@Override
public Answer updateSystemsByUser(User user, List<UserSystem> newGroups) {
Answer a = new Answer(new MessageEvent(MessageEventEnum.DATA_OPERATION_OK));
AnswerList an = this.readByUser(user.getLogin());
if (an.isCodeEquals(MessageEventEnum.DATA_OPERATION_OK.getCode())) {
List<UserSystem> oldGroups = an.getDataList();
// delete if don't exist in new
for (UserSystem old : oldGroups) {
if (!newGroups.contains(old)) {
Answer del = userSystemDAO.remove(old);
if (!del.isCodeEquals(MessageEventEnum.DATA_OPERATION_OK.getCode())) {
a = del;
}
}
}
// insert if don't exist in old
for (UserSystem group : newGroups) {
if (!oldGroups.contains(group)) {
Answer add = userSystemDAO.create(group);
if (!add.isCodeEquals(MessageEventEnum.DATA_OPERATION_OK.getCode())) {
a = add;
}
}
}
}
return a;
}
@Override
public Answer remove(UserSystem sys) {
return userSystemDAO.remove(sys);
}