private List<String> listOfUniversityNames(List<University> universities) {
List<String> listUniversityNames = new ArrayList<>(universities.size());
for (University university : universities) {
listUniversityNames.add(university.getName());
}
return listUniversityNames;
}
private boolean deleteNonServerUniversity(List<String> incomingUniversityNames) {
boolean changed = false;
List<University> mealsInDbAndServer = universityDao.notInNamesList(incomingUniversityNames);
for (University university : mealsInDbAndServer) {
universityDao.delete(university.getId());
changed = true;
}
return changed;
}
private boolean insertUniversities(
List<University> mealsInDbAndServer, List<University> serverUniversities) {
boolean changed = false;
List<String> dbListNames = listOfUniversityNames(mealsInDbAndServer);
for (University serverUniversity : serverUniversities) {
if (!dbListNames.contains(serverUniversity.getName())) {
universityDao.insert(serverUniversity);
changed = true;
}
}
return changed;
}
public University selectUniversity(University currentUniversity) {
if (universityDao.count() == 1) {
currentUniversity = universityDao.fetchAll().get(0);
} else if (universityDao.count() > 1) {
if (currentUniversity == null) {
currentUniversity = universityDao.orderByName().get(0);
} else {
// Current University may not exist in the database if it was deleted
University university = universityDao.findByName(currentUniversity.getName());
if (university == null) {
currentUniversity = universityDao.orderByName().get(0);
}
}
}
return currentUniversity;
}
private boolean syncMealsServer(
List<University> mealsInDbAndServer, List<University> incomingUniversities) {
boolean changed = false;
for (University databaseUniversity : mealsInDbAndServer) {
for (University serverUniversity : incomingUniversities) {
if (serverUniversity.getName().equals(databaseUniversity.getName())) {
serverUniversity.setId(databaseUniversity.getId());
}
}
}
for (University university : incomingUniversities) {
boolean changedMeal = mealService.syncMeals(university.getMeals(), university);
if (changedMeal) changed = true;
}
return changed;
}