public List<Product> getNotLinkedProducts(String clientId, Integer providerId, String words) {
List<LinkedProductEntry> entries =
linkedEntryRepository.find(new LinkedEntryCondition(providerId));
Set<String> linkedNames = new HashSet<String>();
for (LinkedProductEntry entry : entries) linkedNames.add(entry.name);
List<Product> notLinkedProducts = new ArrayList<>();
ProductSource source = new ProviderSourceStub();
for (Product product : source.get(providerId))
if (!linkedNames.contains(product.name) && contain(product.name, words))
notLinkedProducts.add(product);
return notLinkedProducts;
}