NCBACK-9 add Validator,Add new enums with codes

src/main/java/ru/soune/no_copy/handler/GlobalExceptionHandler.java

@@ -8,8 +8,10 @@ import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
+import ru.soune.no_copy.dto.MessageCode;
 import ru.soune.no_copy.exception.*;
 
+import java.time.LocalDateTime;
 import java.util.Map;
 
 @RestControllerAdvice
@@ -30,14 +32,15 @@ public class GlobalExceptionHandler {
     }
 
     @ExceptionHandler(UserAlreadyExistsException.class)
-    @ResponseStatus(HttpStatus.CONFLICT)
+    @ResponseStatus(HttpStatus.OK)
     public ResponseEntity<?> handleUserContainsException(UserAlreadyExistsException ex) {
-        return ResponseEntity.
-                badRequest()
+
+        return ResponseEntity
+                .ok()
                 .body(Map.of(
-                        "success", false,
-                        "message" ,ex.getMessage()
-                ));
+                        "msg_id", ex.getMessageId(),
+                        "message_code", ex.getMessageCode(),
+                        "message_desc", ex.getMessageDescription()));
     }
 
     @ExceptionHandler(UserNotFoundException.class)