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Added implementation for task hibernate order hw. #773

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37 changes: 34 additions & 3 deletions src/main/java/mate/academy/Main.java
Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,25 @@

import java.time.LocalDate;
import java.time.LocalDateTime;
import mate.academy.exception.RegistrationException;
import mate.academy.lib.Injector;
import mate.academy.model.CinemaHall;
import mate.academy.model.Movie;
import mate.academy.model.MovieSession;
import mate.academy.model.ShoppingCart;
import mate.academy.model.User;
import mate.academy.security.AuthenticationService;
import mate.academy.service.CinemaHallService;
import mate.academy.service.MovieService;
import mate.academy.service.MovieSessionService;
import mate.academy.service.OrderService;
import mate.academy.service.ShoppingCartService;

public class Main {
public static void main(String[] args) {
MovieService movieService = null;
Injector injector = Injector.getInstance("mate.academy");

MovieService movieService = (MovieService) injector.getInstance(MovieService.class);

Movie fastAndFurious = new Movie("Fast and Furious");
fastAndFurious.setDescription("An action film about street racing, heists, and spies.");
Expand All @@ -27,7 +36,8 @@ public static void main(String[] args) {
secondCinemaHall.setCapacity(200);
secondCinemaHall.setDescription("second hall with capacity 200");

CinemaHallService cinemaHallService = null;
CinemaHallService cinemaHallService =
(CinemaHallService) injector.getInstance(CinemaHallService.class);
cinemaHallService.add(firstCinemaHall);
cinemaHallService.add(secondCinemaHall);

Expand All @@ -44,12 +54,33 @@ public static void main(String[] args) {
yesterdayMovieSession.setMovie(fastAndFurious);
yesterdayMovieSession.setShowTime(LocalDateTime.now().minusDays(1L));

MovieSessionService movieSessionService = null;
MovieSessionService movieSessionService =
(MovieSessionService) injector.getInstance(MovieSessionService.class);
movieSessionService.add(tomorrowMovieSession);
movieSessionService.add(yesterdayMovieSession);

System.out.println(movieSessionService.get(yesterdayMovieSession.getId()));
System.out.println(movieSessionService.findAvailableSessions(
fastAndFurious.getId(), LocalDate.now()));

AuthenticationService authenticationService =
(AuthenticationService) injector.getInstance(AuthenticationService.class);
User newUser = null;
try {
newUser = authenticationService.register("newuser@gmail.com", "pass");
System.out.println(newUser);
} catch (RegistrationException e) {
throw new RuntimeException("Can't register a user: " + newUser, e);
}
Comment on lines +69 to +74
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in main we can rethrow exception to the method signature instead of try/catch but that is up to you


ShoppingCartService shoppingCartService =
(ShoppingCartService) injector.getInstance(ShoppingCartService.class);
shoppingCartService.addSession(tomorrowMovieSession,newUser);
ShoppingCart shoppingCart = shoppingCartService.getByUser(newUser);
System.out.println(shoppingCart);

OrderService orderService = (OrderService) injector.getInstance(OrderService.class);
orderService.completeOrder(shoppingCart);
System.out.println(orderService.getOrdersHistory(newUser));
}
}
11 changes: 11 additions & 0 deletions src/main/java/mate/academy/dao/OrderDao.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
package mate.academy.dao;

import java.util.List;
import mate.academy.model.Order;
import mate.academy.model.User;

public interface OrderDao {
Order add(Order order);

List<Order> getByUser(User user);
}
57 changes: 57 additions & 0 deletions src/main/java/mate/academy/dao/impl/OrderDaoImpl.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,57 @@
package mate.academy.dao.impl;

import java.util.List;
import mate.academy.dao.OrderDao;
import mate.academy.exception.DataProcessingException;
import mate.academy.lib.Dao;
import mate.academy.model.Order;
import mate.academy.model.User;
import mate.academy.util.HibernateUtil;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.query.Query;

@Dao
public class OrderDaoImpl implements OrderDao {
private final SessionFactory sessionFactory = HibernateUtil.getSessionFactory();

@Override
public Order add(Order order) {
Session session = null;
Transaction transaction = null;
try {
session = sessionFactory.openSession();
transaction = session.beginTransaction();
session.persist(order);
transaction.commit();
return order;
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
throw new DataProcessingException("Can't insert an order: " + order, e);
} finally {
if (session != null) {
session.close();
}
}
}

@Override
public List<Order> getByUser(User user) {
try (Session session = sessionFactory.openSession()) {
Query<Order> query = session.createQuery("FROM Order o "
+ "LEFT JOIN FETCH o.tickets t "
+ "LEFT JOIN FETCH t.movieSession ms "
+ "LEFT JOIN FETCH ms.movie "
+ "LEFT JOIN FETCH ms.cinemaHall "
+ "LEFT JOIN FETCH o.user u "
+ "WHERE u.id = :userId", Order.class);
query.setParameter("userId", user.getId());
return query.getResultList();
} catch (Exception e) {
throw new DataProcessingException("Can't find an order by user: " + user, e);
}
}
}
76 changes: 76 additions & 0 deletions src/main/java/mate/academy/model/Order.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,76 @@
package mate.academy.model;

import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.ManyToOne;
import jakarta.persistence.OneToMany;
import jakarta.persistence.Table;
import java.time.LocalDateTime;
import java.util.List;

@Entity
@Table(name = "orders")
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@OneToMany(fetch = FetchType.LAZY)
private List<Ticket> tickets;
private LocalDateTime orderDate;
@ManyToOne(fetch = FetchType.LAZY)
private User user;
Comment on lines +20 to +24
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let's specify the join column to not let hibernate create a third table for each relation


public Order() {
}

public Order(List<Ticket> tickets, LocalDateTime orderDate, User user) {
this.tickets = tickets;
this.orderDate = orderDate;
this.user = user;
}

public Long getId() {
return id;
}

public void setId(Long id) {
this.id = id;
}

public List<Ticket> getTickets() {
return tickets;
}

public void setTickets(List<Ticket> tickets) {
this.tickets = tickets;
}

public LocalDateTime getOrderDate() {
return orderDate;
}

public void setOrderDate(LocalDateTime orderDate) {
this.orderDate = orderDate;
}

public User getUser() {
return user;
}

public void setUser(User user) {
this.user = user;
}

@Override
public String toString() {
return "Order {"
+ "id='" + id + '\''
+ ", tickets='" + tickets + '\''
+ ", orderDate='" + orderDate + '\''
+ ", user='" + user + '\''
+ '}';
}
}
12 changes: 12 additions & 0 deletions src/main/java/mate/academy/service/OrderService.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
package mate.academy.service;

import java.util.List;
import mate.academy.model.Order;
import mate.academy.model.ShoppingCart;
import mate.academy.model.User;

public interface OrderService {
Order completeOrder(ShoppingCart shoppingCart);

List<Order> getOrdersHistory(User user);
}
36 changes: 36 additions & 0 deletions src/main/java/mate/academy/service/impl/OrderServiceImpl.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,36 @@
package mate.academy.service.impl;

import java.time.LocalDateTime;
import java.util.List;
import mate.academy.dao.OrderDao;
import mate.academy.lib.Inject;
import mate.academy.lib.Service;
import mate.academy.model.Order;
import mate.academy.model.ShoppingCart;
import mate.academy.model.User;
import mate.academy.service.OrderService;
import mate.academy.service.ShoppingCartService;

@Service
public class OrderServiceImpl implements OrderService {
@Inject
private OrderDao orderDao;
@Inject
private ShoppingCartService shoppingCartService;

@Override
public Order completeOrder(ShoppingCart shoppingCart) {
var tickets = List.copyOf(shoppingCart.getTickets());
var orderDate = LocalDateTime.now();
var user = shoppingCart.getUser();

Order order = new Order(tickets, orderDate, user);
shoppingCartService.clearShoppingCart(shoppingCart);
return orderDao.add(order);
}

@Override
public List<Order> getOrdersHistory(User user) {
return orderDao.getByUser(user);
}
}
19 changes: 19 additions & 0 deletions src/main/resources/hibernate.cfg.xml
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
<hibernate-configuration>
<session-factory>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="connection.url">jdbc:mysql://localhost/hibernate_study</property>
<property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="connection.username">root</property>
<property name="connection.password">password</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>

<mapping class="mate.academy.model.User"/>
<mapping class="mate.academy.model.Movie"/>
<mapping class="mate.academy.model.CinemaHall"/>
<mapping class="mate.academy.model.MovieSession"/>
<mapping class="mate.academy.model.ShoppingCart"/>
<mapping class="mate.academy.model.Ticket"/>
<mapping class="mate.academy.model.Order"/>
</session-factory>
</hibernate-configuration>
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