add validation to email for save user

hd-commons-lib/src/main/java/models/exceptions/StandardError.java

@@ -3,10 +3,10 @@ package main.java.models.exceptions;
 import java.time.LocalDateTime;
 import lombok.Getter;
 import lombok.Setter;
-import lombok.Builder;
+import lombok.experimental.SuperBuilder;
 
 @Getter
-@Builder
+@SuperBuilder
 public class StandardError {
     private LocalDateTime timestamp;
     private Integer status;

hd-commons-lib/src/main/java/models/exceptions/ValidationException.java

@@ -0,0 +1,26 @@
+package main.java.models.exceptions;
+
+import java.lang.reflect.Field;
+import java.util.List;
+
+import lombok.experimental.SuperBuilder;
+import lombok.Getter;
+import lombok.AllArgsConstructor;
+
+@SuperBuilder
+public class ValidationException extends StandardError {
+
+    @Getter
+    private List<FieldError> errors;
+
+    @Getter
+    @AllArgsConstructor
+    private static class FieldError {
+        private String fieldName;
+        private String message;
+    }
+
+    public void addError(final String fieldName, final String message) {
+        this.errors.add(new FieldError(fieldName, message));
+    }
+}

hd-commons-lib/src/main/java/models/requests/CreateUserRequest.java

@@ -1,13 +1,22 @@
 package main.java.models.requests;
 
 import java.util.Set;
+import jakarta.validation.constraints.NotEmpty;
+import jakarta.validation.constraints.Email;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Size;
 import main.java.models.enums.ProfileEnum;
+import io.swagger.v3.oas.annotations.media.Schema;
+
 import lombok.With;
 
 @With
 public record CreateUserRequest(
-        String name,
-        String email,
-        String password,
-        Set<ProfileEnum> profiles) {
+                @Schema(description = "Name of the user", example = "John Doe", required = true) @NotEmpty(message = "Name cannot be empty") @Size(min = 3, max = 50, message = "Name must contain between 3 and 50 characters") String name,
+
+                @Schema(description = "Email of the user", example = "rayanvix@gmail.com") @Email(message = "Invalid email format") @NotBlank(message = "Email cannot be blank") @Size(min = 6, max = 50, message = "Email must contain between 6 and 50 characters") String email,
+
+                @Schema(description = "Password of the user", example = "P@ssw0rd!", required = true) @NotEmpty(message = "Password cannot be empty") @Size(min = 6, max = 20, message = "Password must contain between 6 and 20 characters") @NotBlank(message = "Password cannot be blank") String password,
+
+                @Schema(description = "Profiles assigned to the user", example = "[\" ROLE_ADMIN \", \"ROLE_CUSTOMER \" ]", required = true) Set<ProfileEnum> profiles) {
 }

hd-commons-lib/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -1,6 +1,11 @@
 main/java/models/exceptions/ResourceNotFoundException.class
+main/java/models/exceptions/ValidationException$ValidationExceptionBuilderImpl.class
+main/java/models/exceptions/ValidationException$FieldError.class
+main/java/models/exceptions/ValidationException.class
 main/java/models/exceptions/StandardError$StandardErrorBuilder.class
+main/java/models/exceptions/StandardError$StandardErrorBuilderImpl.class
 main/java/models/responses/UserResponse.class
 main/java/models/enums/ProfileEnum.class
 main/java/models/exceptions/StandardError.class
+main/java/models/exceptions/ValidationException$ValidationExceptionBuilder.class
 main/java/models/requests/CreateUserRequest.class

hd-commons-lib/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -1,5 +1,6 @@
 /home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/enums/ProfileEnum.java
 /home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/exceptions/ResourceNotFoundException.java
 /home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/exceptions/StandardError.java
+/home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/exceptions/ValidationException.java
 /home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/requests/CreateUserRequest.java
 /home/dev/projetos/Help Desk 2.0/hd-commons-lib/src/main/java/models/responses/UserResponse.java

user-service-api/src/main/java/br/com/rayankonecny/userserviceapi/controller/UserController.java

@@ -15,7 +15,7 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
 import io.swagger.v3.oas.annotations.responses.ApiResponses;
 import io.swagger.v3.oas.annotations.tags.Tag;
-
+import jakarta.validation.Valid;
 import main.java.models.exceptions.StandardError;
 import main.java.models.requests.CreateUserRequest;
 import main.java.models.responses.UserResponse;
@@ -41,5 +41,5 @@ public interface UserController {
                         @ApiResponse(responseCode = "500", description = "Internal server error", content = @Content(mediaType = "application/json", schema = @Schema(implementation = StandardError.class)))
         })
         @PostMapping
-        ResponseEntity<Void> save(@RequestBody final CreateUserRequest createUserRequest);
+        ResponseEntity<Void> save(@Valid @RequestBody final CreateUserRequest createUserRequest);
 }

user-service-api/src/main/java/br/com/rayankonecny/userserviceapi/controller/exceptions/ControllerExceptionHandler.java

@@ -1,29 +1,73 @@
 package br.com.rayankonecny.userserviceapi.controller.exceptions;
 
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.http.ResponseEntity;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 
 import jakarta.servlet.http.HttpServletRequest;
+
+import main.java.models.exceptions.ValidationException;
 import main.java.models.exceptions.ResourceNotFoundException;
 import main.java.models.exceptions.StandardError;
 
 import static java.time.LocalDateTime.now;
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
 import static org.springframework.http.HttpStatus.NOT_FOUND;
 
+import java.util.ArrayList;
+
 @ControllerAdvice
 public class ControllerExceptionHandler {
 
-    @ExceptionHandler(ResourceNotFoundException.class)
-    ResponseEntity<StandardError> handleNotFoundException(final ResourceNotFoundException ex, final HttpServletRequest request) {
-        return ResponseEntity.status(NOT_FOUND).body(
+        @ExceptionHandler(ResourceNotFoundException.class)
+        ResponseEntity<StandardError> handleNotFoundException(final ResourceNotFoundException ex,
+                        final HttpServletRequest request) {
+                return ResponseEntity.status(NOT_FOUND).body(
 
-                StandardError.builder()
-                        .timestamp(now())
-                        .status(NOT_FOUND.value())
-                        .error("Resource Not Found")
-                        .message(ex.getMessage())
-                        .path(request.getRequestURI())
-                        .build());
-    }
+                                StandardError.builder()
+                                                .timestamp(now())
+                                                .status(NOT_FOUND.value())
+                                                .error(NOT_FOUND.getReasonPhrase())
+                                                .message(ex.getMessage())
+                                                .path(request.getRequestURI())
+                                                .build());
+        }
+
+        @ExceptionHandler(MethodArgumentNotValidException.class)
+        ResponseEntity<StandardError> handleMethodArgumentNotValidException(
+                        final MethodArgumentNotValidException ex,
+                        final HttpServletRequest request) {
+                var error = ValidationException
+                                .builder()
+                                .timestamp(now())
+                                .status(NOT_FOUND.value())
+                                .error("Validation Exception")
+                                .message("Exception in validation attributes")
+                                .path(request.getRequestURI())
+                                .errors(new ArrayList<>())
+                                .build();
+
+                for (FieldError fieldError : ex.getBindingResult().getFieldErrors()) {
+                        error.addError(fieldError.getField(), fieldError.getDefaultMessage());
+                }
+
+                return ResponseEntity.badRequest().body(error);
+        }
+
+        @ExceptionHandler(DataIntegrityViolationException.class)
+        ResponseEntity<StandardError> handleDataIntegrityViolationException(
+                        final DataIntegrityViolationException ex, final HttpServletRequest request) {
+
+                return ResponseEntity.badRequest().body(
+                                StandardError.builder()
+                                                .timestamp(now())
+                                                .status(BAD_REQUEST.value())
+                                                .error(BAD_REQUEST.getReasonPhrase())
+                                                .message(ex.getMessage())
+                                                .path(request.getRequestURI())
+                                                .build());
+        }
 }

user-service-api/src/main/java/br/com/rayankonecny/userserviceapi/repository/UserRepository.java

@@ -1,10 +1,13 @@
 package br.com.rayankonecny.userserviceapi.repository;
 
+import java.util.Optional;
+
+import br.com.rayankonecny.userserviceapi.entity.User;
 import org.springframework.data.mongodb.repository.MongoRepository;
 import org.springframework.stereotype.Repository;
 
-import br.com.rayankonecny.userserviceapi.entity.User;
-
 @Repository
 public interface UserRepository extends MongoRepository<User, String> {
+
+    Optional<User> findByEmail(final String email);
 }

user-service-api/src/main/java/br/com/rayankonecny/userserviceapi/service/UserService.java

@@ -1,5 +1,6 @@
 package br.com.rayankonecny.userserviceapi.service;
 
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 
 import br.com.rayankonecny.userserviceapi.mapper.UserMapper;
@@ -23,7 +24,16 @@ public class UserService {
     }
 
     public void save(CreateUserRequest createUserRequest) {
+        verifyIfEmailAlreadyEexists(createUserRequest.email(), null);
         userRepository.save(userMapper.fromRequest(createUserRequest));
     }
 
+    private void verifyIfEmailAlreadyEexists(final String email, final String id) {
+        userRepository.findByEmail(email)
+                .filter(user -> !user.getId().equals(id))
+                .ifPresent(user -> {
+                    throw new DataIntegrityViolationException("Email [" + email + "] already exists");
+                });
+    }
+
 }