Add Model mapper dependency

Author: Chamal-Peiris

pom.xml

@@ -91,7 +91,11 @@
             <version>5.3.21</version>
             <scope>test</scope>
         </dependency>
-
+        <dependency>
+            <groupId>org.modelmapper</groupId>
+            <artifactId>modelmapper</artifactId>
+            <version>3.0.0</version>
+        </dependency>
 
     </dependencies>
 

src/main/java/lk/ijse/dep/note/api/UserController.java

@@ -15,48 +15,43 @@ public class UserController {
 
     @Autowired
     private UserService userService;
+
     @ResponseStatus(HttpStatus.CREATED)
-    @PostMapping(consumes = "application/json",produces = "application/json")
-    public UserDTO registerUser(@RequestBody UserDTO user){
+    @PostMapping(consumes = "application/json", produces = "application/json")
+    public UserDTO registerUser(@RequestBody UserDTO user) {
         //validate
 
 
-        try {
-            userService.registerUser(user);
-        } catch (DuplicateEmailException e) {
-            throw new ResponseStatusException(HttpStatus.CONFLICT,"Email already exists",e);
-        }
+        userService.registerUser(user);
+
         return user;
     }
-    @GetMapping(path = "{userId:[A-Fa-f0-\\~]{36}}}",produces = "application/json")
-    public UserDTO getUserInfo(@PathVariable String userId){
-        System.out.println("get"+userId);
-        try {
-            return userService.getUserInfo(userId);
-        } catch (NotFoundException e) {
-            throw new ResponseStatusException(404,"invalid user id",e);
-        }
+
+    @GetMapping(path = "{userId:[A-Fa-f0-\\~]{36}}}", produces = "application/json")
+    public UserDTO getUserInfo(@PathVariable String userId) {
+        System.out.println("get" + userId);
+
+        return userService.getUserInfo(userId);
+
     }
+
     @ResponseStatus(HttpStatus.NO_CONTENT)
     @DeleteMapping("{userId:[A-Fa-f0-\\~]{36}}")
-    public void deleteuser(@PathVariable String userId){
-        try {
-            userService.deleteUser(userId);
-        } catch (NotFoundException e) {
-            throw new ResponseStatusException(404,"invalid user id",e);
-        }
+    public void deleteuser(@PathVariable String userId) {
+
+        userService.deleteUser(userId);
+
     }
+
     @ResponseStatus(HttpStatus.NO_CONTENT)
-    @PatchMapping(path = "{userId:[A-Fa-f0-\\~]{36}}",consumes = "application/json")
-    public void updateUser(@PathVariable String userId,@RequestBody UserDTO user){
+    @PatchMapping(path = "{userId:[A-Fa-f0-\\~]{36}}", consumes = "application/json")
+    public void updateUser(@PathVariable String userId, @RequestBody UserDTO user) {
 
         //todo:validate the user
-        try {
-            user.setId(userId);
-            userService.updateUser(user);
-        } catch (NotFoundException e) {
-            throw new ResponseStatusException(404,"invalid user id",e);
-        }
+
+        user.setId(userId);
+        userService.updateUser(user);
+
     }
 
 }

src/main/java/lk/ijse/dep/note/config/JpaConfig.java

@@ -6,6 +6,7 @@
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.env.Environment;
+import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.JpaVendorAdapter;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
@@ -57,4 +58,8 @@ public DataSource dataSource(){
     public PlatformTransactionManager transactionManager(EntityManagerFactory emf){
         return new JpaTransactionManager(emf);
     }
+
+    public static PersistenceExceptionTranslationPostProcessor persistenceExceptionTranslationPostProcessor(){
+        return  new PersistenceExceptionTranslationPostProcessor();
+    }
 }

src/main/java/lk/ijse/dep/note/repository/custom/UserRepository.java

@@ -6,4 +6,5 @@
 
 
 public interface UserRepository extends CrudRepository<User,String> {
+    boolean existUserByEmail(String email);
 }

src/main/java/lk/ijse/dep/note/repository/custom/impl/UserRepositoryImpl.java

@@ -7,4 +7,8 @@
 
 @Repository
 public class UserRepositoryImpl extends CrudRepositoryImpl<User,String> implements UserRepository {
+    @Override
+    public boolean existUserByEmail(String email) {
+       return !entityManager.createQuery("SELECT u FROM lk.ijse.dep.note.entity.User u WHERE u.email= :email").setParameter("email",email).getResultList().isEmpty();
+    }
 }

src/main/java/lk/ijse/dep/note/service/impl/UserServiceImpl.java

@@ -0,0 +1,39 @@
+package lk.ijse.dep.note.service.impl;
+
+import lk.ijse.dep.note.dto.UserDTO;
+import lk.ijse.dep.note.repository.custom.UserRepository;
+import lk.ijse.dep.note.service.UserService;
+import lk.ijse.dep.note.service.exception.DuplicateEmailException;
+import lk.ijse.dep.note.service.exception.NotFoundException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+public class UserServiceImpl implements UserService {
+
+    @Autowired
+    private  UserRepository userRepository;
+
+    @Override
+    public UserDTO registerUser(UserDTO user) throws DuplicateEmailException {
+        if(userRepository.existUserByEmail(user.getEmail()) ) throw new DuplicateEmailException("Email already exists");
+        return userRepository
+    }
+
+    @Override
+    public void updateUser(UserDTO user) throws NotFoundException {
+
+    }
+
+    @Override
+    public UserDTO getUserInfo(String userId) throws NotFoundException {
+        return null;
+    }
+
+    @Override
+    public void deleteUser(String userId) throws NotFoundException {
+
+    }
+}