@Override
public Category update(Long id, String name) {
Category category = get(id);
if (repository.findByName(name) != null) {
throw new EntityAlreadyExistsException(
String.format("There already exists a category with name=%s!", name));
}
category.setName(name);
repository.save(category);
return category;
}
@Override
public Category create(Category category) {
if (category.getId() != null && repository.findOne(category.getId()) != null) {
throw new EntityAlreadyExistsException(
String.format("There already exists a category with id=%d!", category.getId()));
} else if (repository.findByName(category.getName()) != null) {
throw new EntityAlreadyExistsException(
String.format("There already exists a category with name=%s!", category.getName()));
} else {
repository.save(category);
}
return category;
}
@Override
public Category get(Long id) {
Category category = repository.findOne(id);
if (category == null) {
throw new EntityNotFoundException(String.format("No category with id=%d exists!", id));
} else {
return category;
}
}
@Override
public Page<Category> findAll(Integer pageNumber, Integer pageSize) {
return repository.findAll(new PageRequest(pageNumber, pageSize));
}
@Override
public Category delete(Long id) {
Category category = get(id);
repository.delete(category);
return category;
}