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Merge pull request #1 from BlueVioletTeti/development
created Book entity, its service and repository
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28 changes: 25 additions & 3 deletions
28
src/main/java/mate/academy/bookstore/BookstoreApplication.java
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package mate.academy.bookstore; | ||
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import java.math.BigDecimal; | ||
import lombok.RequiredArgsConstructor; | ||
import mate.academy.bookstore.model.Book; | ||
import mate.academy.bookstore.service.BookService; | ||
import org.springframework.boot.CommandLineRunner; | ||
import org.springframework.boot.SpringApplication; | ||
import org.springframework.boot.autoconfigure.SpringBootApplication; | ||
import org.springframework.context.annotation.Bean; | ||
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@RequiredArgsConstructor | ||
@SpringBootApplication | ||
public class BookstoreApplication { | ||
private final BookService bookService; | ||
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public static void main(String[] args) { | ||
SpringApplication.run(BookstoreApplication.class, args); | ||
} | ||
public static void main(String[] args) { | ||
SpringApplication.run(BookstoreApplication.class, args); | ||
} | ||
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@Bean | ||
public CommandLineRunner commandLineRunner() { | ||
return args -> { | ||
Book book = new Book(); | ||
book.setTitle("Book title"); | ||
book.setAuthor("Book author"); | ||
book.setIsbn("unique isbn"); | ||
book.setPrice(BigDecimal.valueOf(700)); | ||
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bookService.save(book); | ||
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System.out.println(bookService.findAll()); | ||
}; | ||
} | ||
} |
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package mate.academy.bookstore.model; | ||
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import jakarta.persistence.Column; | ||
import jakarta.persistence.Entity; | ||
import jakarta.persistence.GeneratedValue; | ||
import jakarta.persistence.GenerationType; | ||
import jakarta.persistence.Id; | ||
import jakarta.persistence.Table; | ||
import java.math.BigDecimal; | ||
import lombok.Data; | ||
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@Entity | ||
@Data | ||
@Table(name = "book") | ||
public class Book { | ||
@Id | ||
@GeneratedValue(strategy = GenerationType.IDENTITY) | ||
private Long id; | ||
@Column(nullable = false) | ||
private String title; | ||
@Column(nullable = false) | ||
private String author; | ||
@Column(nullable = false, unique = true) | ||
private String isbn; | ||
@Column(nullable = false) | ||
private BigDecimal price; | ||
private String description; | ||
@Column(name = "cover_image") | ||
private String coverImage; | ||
} |
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10
src/main/java/mate/academy/bookstore/repository/BookRepository.java
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package mate.academy.bookstore.repository; | ||
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import java.util.List; | ||
import mate.academy.bookstore.model.Book; | ||
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public interface BookRepository { | ||
Book save(Book book); | ||
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List<Book> findAll(); | ||
} |
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src/main/java/mate/academy/bookstore/repository/BookRepositoryImpl.java
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package mate.academy.bookstore.repository; | ||
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import jakarta.persistence.EntityManager; | ||
import jakarta.persistence.EntityManagerFactory; | ||
import jakarta.persistence.EntityTransaction; | ||
import jakarta.persistence.criteria.CriteriaQuery; | ||
import java.util.List; | ||
import mate.academy.bookstore.model.Book; | ||
import org.springframework.beans.factory.annotation.Autowired; | ||
import org.springframework.stereotype.Repository; | ||
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@Repository | ||
public class BookRepositoryImpl implements BookRepository { | ||
private final EntityManagerFactory entityManagerFactory; | ||
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@Autowired | ||
public BookRepositoryImpl(EntityManagerFactory entityManagerFactory) { | ||
this.entityManagerFactory = entityManagerFactory; | ||
} | ||
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@Override | ||
public Book save(Book book) { | ||
EntityManager entityManager = null; | ||
EntityTransaction transaction = null; | ||
try { | ||
entityManager = entityManagerFactory.createEntityManager(); | ||
transaction = entityManager.getTransaction(); | ||
transaction.begin(); | ||
entityManager.persist(book); | ||
transaction.commit(); | ||
} catch (Exception e) { | ||
if (transaction != null) { | ||
transaction.rollback(); | ||
throw new RuntimeException("Can't save a book: " + book, e); | ||
} | ||
} finally { | ||
if (entityManager != null) { | ||
entityManager.close(); | ||
} | ||
} | ||
return book; | ||
} | ||
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@Override | ||
public List<Book> findAll() { | ||
try (EntityManager entityManager = entityManagerFactory.createEntityManager()) { | ||
CriteriaQuery<Book> criteriaQuery = entityManager.getCriteriaBuilder() | ||
.createQuery(Book.class); | ||
criteriaQuery.from(Book.class); | ||
return entityManager.createQuery(criteriaQuery).getResultList(); | ||
} catch (Exception e) { | ||
throw new RuntimeException("Can't find all books", e); | ||
} | ||
} | ||
} |
10 changes: 10 additions & 0 deletions
10
src/main/java/mate/academy/bookstore/service/BookService.java
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package mate.academy.bookstore.service; | ||
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import java.util.List; | ||
import mate.academy.bookstore.model.Book; | ||
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public interface BookService { | ||
Book save(Book book); | ||
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List<Book> findAll(); | ||
} |
23 changes: 23 additions & 0 deletions
23
src/main/java/mate/academy/bookstore/service/BookServiceImpl.java
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package mate.academy.bookstore.service; | ||
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import java.util.List; | ||
import lombok.RequiredArgsConstructor; | ||
import mate.academy.bookstore.model.Book; | ||
import mate.academy.bookstore.repository.BookRepository; | ||
import org.springframework.stereotype.Service; | ||
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@RequiredArgsConstructor | ||
@Service | ||
public class BookServiceImpl implements BookService { | ||
private final BookRepository bookRepository; | ||
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@Override | ||
public Book save(Book book) { | ||
return bookRepository.save(book); | ||
} | ||
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@Override | ||
public List<Book> findAll() { | ||
return bookRepository.findAll(); | ||
} | ||
} |
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spring.datasource.url=jdbc:mysql://localhost:3306/books_app?serverTimezone=UTC | ||
spring.datasource.username=user | ||
spring.datasource.password=password | ||
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver | ||
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spring.jpa.hibernate.ddl-auto=create-drop | ||
spring.jpa.show-sql=true |
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spring.datasource.url=jdbc:h2:mem:testdb | ||
spring.datasource.driverClassName=org.h2.Driver | ||
spring.datasource.username=sa | ||
spring.datasource.password=password | ||
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect |