User service added login and returning token

buisnesslogic/src/main/java/com/plannaplan/entities/User.java

@@ -1,5 +1,7 @@
 package com.plannaplan.entities;
 
+import java.sql.Date;
+
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
@@ -14,11 +16,35 @@ public class User {
     private Long id;
     private String name;
     private String surname;
+    private String email;
     private UserRoles role;
+    private String token;
+    private Date tokenCreatedDate;
 
     public User() {
     }
 
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Date getTokenCreatedDate() {
+        return tokenCreatedDate;
+    }
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        this.tokenCreatedDate = new Date(System.currentTimeMillis());
+        this.token = token;
+    }
+
     public String getName() {
         return name;
     }

buisnesslogic/src/main/java/com/plannaplan/exceptions/UserNotFoundException.java

@@ -0,0 +1,13 @@
+package com.plannaplan.exceptions;
+
+public class UserNotFoundException extends Exception {
+    /**
+     *
+     */
+    private static final long serialVersionUID = 1L;
+
+    public UserNotFoundException(String message) {
+        super(message);
+    }
+
+}

buisnesslogic/src/main/java/com/plannaplan/repositories/UserRepository.java

@@ -3,9 +3,12 @@ package com.plannaplan.repositories;
 import com.plannaplan.entities.User;
 
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
 @Repository
 public interface UserRepository extends JpaRepository<User, Long> {
-
+    @Query("FROM User WHERE email = ?1")
+    User getByAuthority(@Param("authority") String authority);
 }

buisnesslogic/src/main/java/com/plannaplan/services/UserService.java

@@ -1,6 +1,10 @@
 package com.plannaplan.services;
 
+import java.util.UUID;
+
 import com.plannaplan.abstracts.EventWatcher;
+import com.plannaplan.entities.User;
+import com.plannaplan.exceptions.UserNotFoundException;
 import com.plannaplan.repositories.UserRepository;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -15,4 +19,22 @@ public class UserService extends EventWatcher {
         super();
     }
 
+    public String login(String authority) throws UserNotFoundException {
+        User user = this.repo.getByAuthority(authority);
+        if (user == null) {
+            throw new UserNotFoundException("Can not find user with given authority");
+        }
+        String token = UUID.randomUUID().toString();
+        user.setToken(token);
+        return token;
+    }
+
+    public void save(User user) {
+        this.repo.save(user);
+    }
+
+    public User getUserByEmail(String email) {
+        return this.repo.getByAuthority(email);
+    }
+
 }

buisnesslogic/src/main/java/com/plannaplan/types/UserRoles.java

@@ -1,5 +1,5 @@
 package com.plannaplan.types;
 
 public enum UserRoles {
-    STUDENT, DEANERY, ADMIN
+    STUDENT, DEANERY, ADMIN, TEST_USER
 }