exercise10

Hendrik Jungnitsch

2022-09-29 bc435ed1a9a73d85c9d625b18787945d8a6db946

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package de.gedoplan.seminar.sbt.di.exercise.service;
 
import de.gedoplan.seminar.sbt.di.exercise.domain.Cocktail;
import de.gedoplan.seminar.sbt.di.exercise.exception.OutOfStockException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;
 
import static java.util.function.Predicate.not;
 
@Component
public class CocktailSelectChecker {
 
    @Autowired
    IngredientService ingredientService;
 
    @EventListener
    public void select(Cocktail cocktail) {
        cocktail.getIngredients().entrySet().stream()
                .filter(not(e -> ingredientService.isAvailable(e.getKey().getId(), e.getValue())))
                .findFirst().ifPresent(beverage -> {
                    throw new OutOfStockException(beverage.getKey());
                });
    }
}