Hibernate user service task done

Author: Oleh8

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

@@ -65,6 +65,7 @@ public static void main(String[] args) {
         String incorrectEmail = "incorrect@email.com";
         String correctPassword = "correctPassword";
         String incorrectPassword = "incorrectPassword";
+        String emptyLine = "";
         AuthenticationService authenticationService =
                 (AuthenticationService) injector.getInstance(AuthenticationService.class);
 
@@ -74,6 +75,12 @@ public static void main(String[] args) {
             throw new RuntimeException(e);
         }
 
+        try {
+            authenticationService.register(emptyLine, correctPassword);
+        } catch (RegistrationException e) {
+            throw new RuntimeException(e);
+        }
+
         try {
             authenticationService.login(incorrectEmail, correctPassword);
         } catch (AuthenticationException e) {

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

@@ -1,5 +1,6 @@
 package mate.academy.model;
 
+import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
@@ -12,7 +13,9 @@ public class User {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
+    @Column(nullable = false, unique = true)
     private String email;
+    @Column(nullable = false)
     private String password;
     private byte[] salt;
 

src/main/java/mate/academy/service/impl/AuthenticationServiceImpl.java

@@ -33,6 +33,9 @@ public User login(String email, String password) throws AuthenticationException
 
     @Override
     public User register(String email, String password) throws RegistrationException {
+        if (email.isEmpty()) {
+            throw new RegistrationException("email can not be empty");
+        }
         Optional<User> userFromDbOptional = userService.findByEmail(email);
         if (userFromDbOptional.isPresent()) {
             throw new RegistrationException("User with email: " + email + "already exists");

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

@@ -28,8 +28,8 @@ public static String hashPassword(String password, byte[] salt) {
                 hashedPassword.append(String.format("%02x", b));
             }
         } catch (NoSuchAlgorithmException e) {
-            throw new IllegalStateException("Could not create hash using SHA-512: "
-                    + CRYPTO_AlGORITHM, e);
+            throw new IllegalStateException("Could not create hash using: "
+                    + CRYPTO_AlGORITHM + " algorythm ", e);
         }
         return hashedPassword.toString();
     }