hw-hibernate-configuration-solution-andrey-kiyas

pom.xml

@@ -20,6 +20,17 @@
     </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+            <version>6.2.6.Final</version>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.33</version>
+        </dependency>
+
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>

src/main/java/mate/academy/Main.java

@@ -1,7 +1,22 @@
 package mate.academy;
 
+import mate.academy.lib.Injector;
+import mate.academy.model.Movie;
+import mate.academy.service.MovieService;
+
 public class Main {
+    private static final Injector injector = Injector.getInstance("mate.academy");
+    private static final MovieService movieService = (MovieService)
+            injector.getInstance(MovieService.class);
+
     public static void main(String[] args) {
+        // Add test
+        Movie movie = new Movie();
+        movie.setTitle("Terminator 2");
+        movie.setDescription("Judgment Day");
+        System.out.println(movieService.add(movie));
 
+        // Get test
+        System.out.println(movieService.get(1L));
     }
 }

src/main/java/mate/academy/dao/MovieDao.java

@@ -0,0 +1,10 @@
+package mate.academy.dao;
+
+import java.util.Optional;
+import mate.academy.model.Movie;
+
+public interface MovieDao {
+    Movie add(Movie movie);
+
+    Optional<Movie> get(Long id);
+}

src/main/java/mate/academy/dao/MovieDaoImpl.java

@@ -0,0 +1,46 @@
+package mate.academy.dao;
+
+import java.util.Optional;
+import mate.academy.exception.DataProcessingException;
+import mate.academy.lib.Dao;
+import mate.academy.model.Movie;
+import mate.academy.util.HibernateUtil;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.Transaction;
+
+@Dao
+public class MovieDaoImpl implements MovieDao {
+    @Override
+    public Movie add(Movie movie) {
+        Session session = null;
+        Transaction transaction = null;
+        try {
+            // sessionFactory.openSession()
+            session = HibernateUtil.getSessionFactory().openSession();
+            transaction = session.beginTransaction();
+            session.save(movie);
+            transaction.commit();
+        } catch (Exception e) {
+            if (transaction != null) {
+                transaction.rollback();
+            }
+            throw new DataProcessingException("Transaction error has occurred!");
+        } finally {
+            if (session != null) {
+                session.close();
+            }
+        }
+        return movie;
+    }
+
+    @Override
+    public Optional<Movie> get(Long id) {
+        SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
+        try (Session session = sessionFactory.openSession()) {
+            return Optional.ofNullable(session.get(Movie.class, id));
+        } catch (Exception e) {
+            throw new DataProcessingException("Couldn't get movie from DB!");
+        }
+    }
+}

src/main/java/mate/academy/exception/DataProcessingException.java

@@ -0,0 +1,7 @@
+package mate.academy.exception;
+
+public class DataProcessingException extends RuntimeException {
+    public DataProcessingException(String message) {
+        super(message);
+    }
+}

src/main/java/mate/academy/model/Movie.java

@@ -0,0 +1,53 @@
+package mate.academy.model;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "movie")
+public class Movie {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String title;
+    private String description;
+
+    public Long getId() {
+        return id;
+    }
+
+    public Movie setId(Long id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public Movie setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public Movie setDescription(String description) {
+        this.description = description;
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        return "Movie{"
+                + "id=" + id
+                + ", title='" + title + '\''
+                + ", description='" + description + '\''
+                + '}';
+    }
+}

src/main/java/mate/academy/service/MovieService.java

@@ -0,0 +1,9 @@
+package mate.academy.service;
+
+import mate.academy.model.Movie;
+
+public interface MovieService {
+    Movie add(Movie movie);
+
+    Movie get(Long id);
+}

src/main/java/mate/academy/service/MovieServiceImpl.java

@@ -0,0 +1,22 @@
+package mate.academy.service;
+
+import mate.academy.dao.MovieDao;
+import mate.academy.lib.Inject;
+import mate.academy.lib.Service;
+import mate.academy.model.Movie;
+
+@Service
+public class MovieServiceImpl implements MovieService {
+    @Inject
+    private static MovieDao movieDao;
+
+    @Override
+    public Movie add(Movie movie) {
+        return movieDao.add(movie);
+    }
+
+    @Override
+    public Movie get(Long id) {
+        return movieDao.get(id).get();
+    }
+}

src/main/java/mate/academy/util/HibernateUtil.java

@@ -0,0 +1,19 @@
+package mate.academy.util;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class HibernateUtil {
+    private static final SessionFactory instance = initSessionFactory();
+
+    private HibernateUtil() {
+    }
+
+    private static SessionFactory initSessionFactory() {
+        return new Configuration().configure().buildSessionFactory();
+    }
+
+    public static SessionFactory getSessionFactory() {
+        return instance;
+    }
+}

src/main/resources/hibernate.cfg.xml

@@ -0,0 +1,13 @@
+<hibernate-configuration>
+    <session-factory>
+        <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
+        <property name="connection.url">jdbc:mysql://localhost:3306/ticket_app?serverTimeZone=UTC</property>
+        <property name="connection.username">root</property>
+        <property name="connection.password">Password</property>
+        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
+        <property name="show_sql">true</property>
+        <property name="hbm2ddl.auto">create-drop</property>
+
+        <mapping class="mate.academy.model.Movie"/>
+    </session-factory>
+</hibernate-configuration>