bar/src/main/java/functionIntr/consumer/BuyWorkflowImpl.java - develop - javapractice/JavaPractice

bar/src/main/java/functionIntr/consumer/BuyWorkflowImpl.java

47 строк2 KB

Кузьма Даждъбогин

TSKJVPRCTC5-7 Вынес практику по функциональным интерфейсам в отедльный модуль Слитки

17 фев 2026, 12:32

17 фев 2026, 12:325dd264a

package functionIntr.consumer;

import functionIntr.function.BuyRequestMapper;
import functionIntr.predicate.Checker;
import history.BuyHistoryImpl;
import request.BuyRequest;

import java.util.function.BiFunction;
import java.util.function.Predicate;
import java.util.function.Supplier;

public class BuyWorkflowImpl implements Workflow<BuyRequest, BuyHistoryImpl> {
    private final Supplier<BuyRequest> requestSupplier = BuyRequest::new;
    private final Supplier<BuyHistoryImpl> historySupplier = BuyHistoryImpl::new;
    private final BiFunction<BuyRequest, BuyHistoryImpl, BuyRequest> buyRequestMapper = new BuyRequestMapper()::map;

    @Override
    public BuyRequest doInitialisation() {
        BuyRequest buyRequest = requestSupplier.get();
        System.out.println("Создан новый " + buyRequest);
        return buyRequest;
    }

    @Override
    public BuyRequest doFillingByHistory(BuyRequest request, BuyHistoryImpl history) {
        BuyRequest result = buyRequestMapper.apply(request, history);
        System.out.println("Реквест заполнен данными из ИО. Состояние реквеста: " + result);
        return request;
    }

    @Override
    public void doFinish(BuyRequest request) {
        Predicate<BuyRequest> isOk = Checker.check(request);
        if (isOk.test(request)) {

            System.out.println("выкуплено у клиента: " + request);
            return request;

        }
        System.out.println("не получилось провести операцию");
        return null;
    }

    public Supplier<BuyHistoryImpl> getHistorySupplier() {
        return historySupplier;
    }
}