package rewards.internal;
import java.util.HashMap;
import java.util.Map;
import org.springframework.orm.ObjectRetrievalFailureException;
import rewards.Dining;
import rewards.internal.account.Account;
import rewards.internal.restaurant.BenefitAvailabilityPolicy;
import rewards.internal.restaurant.Restaurant;
import rewards.internal.restaurant.RestaurantRepository;
import common.money.Percentage;
/**
* A dummy restaurant repository implementation. Has a single restaurant "Apple Bees" with a 8% benefit availability
* percentage that's always available.
*
* Stubs facilitate unit testing. An object needing a RestaurantRepository can work with this stub and not have to bring
* in expensive and/or complex dependencies such as a Database. Simple unit tests can then verify object behavior by
* considering the state of this stub.
*/
public class StubRestaurantRepository implements RestaurantRepository {
private Map<String, Restaurant> restaurantsByMerchantNumber = new HashMap<String, Restaurant>();
public StubRestaurantRepository() {
Restaurant restaurant = new Restaurant("1234567890", "Apple Bees");
restaurant.setBenefitPercentage(Percentage.valueOf("8%"));
restaurant.setBenefitAvailabilityPolicy(new AlwaysReturnsTrue());
restaurantsByMerchantNumber.put(restaurant.getNumber(), restaurant);
}
public Restaurant findByMerchantNumber(String merchantNumber) {
Restaurant restaurant = (Restaurant) restaurantsByMerchantNumber.get(merchantNumber);
if (restaurant == null) {
throw new ObjectRetrievalFailureException(Restaurant.class, merchantNumber);
}
return restaurant;
}
/**
* A simple "dummy" benefit availability policy that always returns true. Only useful for testing--a real
* availability policy might consider many factors such as the day of week of the dining, or the account's reward
* history for the current month.
*/
private static class AlwaysReturnsTrue implements BenefitAvailabilityPolicy {
public boolean isBenefitAvailableFor(Account account, Dining dining) {
return true;
}
}
}