бизнес логика

src/main/java/org/dbms/service/ClientService.java

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+package org.dbms.service;
+
+import org.dbms.dto.ClientLoginDto;
+import org.dbms.dto.ClientSignupDto;
+import org.dbms.exceptions.UserExistsException;
+import org.dbms.models.Client;
+import org.dbms.storageContracts.IClientStorage;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Objects;
+
+@Service
+public class ClientService {
+    IClientStorage clientStorage;
+
+    public ClientService(IClientStorage clientStorage) {
+        this.clientStorage = clientStorage;
+    }
+    @Transactional
+    public String signup(ClientSignupDto client) {
+        if(clientStorage.getByLogin(client.getLogin()) != null) {
+            throw new UserExistsException(client.getLogin());
+        }
+
+        clientStorage.insert(new Client(client.getName(), client.getPhone(), client.getLogin(), client.getPassword()));
+        return clientStorage.getIdByLogin(client.getLogin());
+    }
+    @Transactional
+    public boolean login(ClientLoginDto client) {
+        Client c = clientStorage.getByLogin(client.getLogin());
+        if(c == null) return false;
+        if(!Objects.equals(c.getPassword(), client.getPassword())) return false;
+
+        return true;
+    }
+
+    @Transactional
+    public Client getClientByLogin(String login) {
+        return clientStorage.getByLogin(login);
+    }
+}

src/main/java/org/dbms/service/DriverService.java

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+package org.dbms.service;
+
+import org.dbms.dto.DriverDTO;
+import org.dbms.models.Driver;
+import org.dbms.searchModels.DriverSearch;
+import org.dbms.storageContracts.IDriverStorage;
+import org.dbms.storageImpl.DriverStorage;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+@Service
+public class DriverService {
+    private IDriverStorage driverStorage;
+
+    public DriverService(IDriverStorage driverStorage) {
+        this.driverStorage = driverStorage;
+    }
+
+    @Transactional
+    public List<Driver> getFiltered(int expFrom, int expTo) {
+        DriverSearch ds = new DriverSearch();
+
+        if(expFrom != -1) ds.expirienceFrom = expFrom;
+        if(expTo != -1) ds.expirienceTo = expTo;
+
+        return driverStorage.getFilteredList(ds);
+    }
+
+    @Transactional
+    public int getFilteredCount(int expFrom, int expTo, int size) {
+        DriverSearch ds = new DriverSearch();
+
+        if(expFrom != -1) ds.expirienceFrom = expFrom;
+        if(expTo != -1) ds.expirienceTo = expTo;
+
+        int count = driverStorage.getFilteredCount(ds);
+        int res = count / size;
+        if(count % size != 0) res++;
+        return res;
+    }
+    @Transactional
+    public List<Driver> getFilteredPage(int expFrom, int expTo, int size, int page) {
+        DriverSearch ds = new DriverSearch();
+
+        if(expFrom != -1) ds.expirienceFrom = expFrom;
+        if(expTo != -1) ds.expirienceTo = expTo;
+
+        return driverStorage.getFilteredPage(ds, size, page);
+    }
+
+    @Transactional
+    public Driver getDriverById(Long driverId) {
+        return driverStorage.getElementById(driverId);
+    }
+}

src/main/java/org/dbms/service/OrderService.java

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+package org.dbms.service;
+
+import org.dbms.dto.CreateOrderDTO;
+import org.dbms.models.Client;
+import org.dbms.models.Driver;
+import org.dbms.models.Order;
+import org.dbms.storageContracts.IOrderStorage;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import java.time.LocalDate;
+import java.util.Date;
+import java.util.List;
+
+@Service
+public class OrderService {
+    private IOrderStorage orderStorage;
+    private ClientService clientService;
+    private DriverService driverService;
+
+    public OrderService(IOrderStorage orderStorage, ClientService clientService, DriverService driverService) {
+        this.orderStorage = orderStorage;
+        this.clientService = clientService;
+        this.driverService = driverService;
+    }
+
+    @Transactional
+    public List<Order> getOrdersByClient(String login) {
+        Client client = clientService.getClientByLogin(login);
+        return orderStorage.getOrdersByClientId(client.getId());
+    }
+
+    @Transactional
+    public List<Order> getOrdersPageByClient(String login, int size, int page) {
+        Client client = clientService.getClientByLogin(login);
+        return orderStorage.readPageByClientId(size, page, client.getId());
+    }
+
+    @Transactional
+    public void createOrder(CreateOrderDTO orderDTO) {
+        Client client = clientService.getClientByLogin(orderDTO.getLogin());
+        Driver driver = driverService.getDriverById(orderDTO.getDriverId());
+        Order order = new Order(orderDTO.getFrom(), orderDTO.getTo(), calculatePrice(orderDTO),
+                                orderDTO.getDeliveryWeight(), driver, client);
+
+        orderStorage.insert(order);
+    }
+    @Transactional
+    public int getPagesCount(String login, int size) {
+        Client client = clientService.getClientByLogin(login);
+        int count = orderStorage.getCountByClientId(client.getId());
+        int res = count / size;
+        if(count % size != 0) res++;
+        return res;
+    }
+    @Transactional
+    private double calculatePrice(CreateOrderDTO orderDTO) {
+        Driver driver = driverService.getDriverById(orderDTO.getDriverId());
+        double frigileCoef = 1.0;
+        if(orderDTO.isFragile()) frigileCoef = 1.1;
+
+        double driverCoef = LocalDate.now().getYear() - driver.getLicenseYear().getYear() - 1900;
+        driverCoef += 5;
+        driverCoef /= 5;
+
+        double res = orderDTO.getDeliveryWeight() * 50 * frigileCoef * driverCoef;
+        return res;
+    }
+}