adding missing files

src/main/java/com/release11/klaus/controller/EventController.java

@@ -0,0 +1,29 @@
+package com.release11.klaus.controller;
+
+import com.release11.klaus.model.EventRequestDto;
+import com.release11.klaus.service.EtrackService;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Controller;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import javax.validation.Valid;
+
+@Slf4j
+@Controller
+@RequestMapping
+@AllArgsConstructor
+public class EventController {
+
+    private final EtrackService etrackService;
+    
+    @PostMapping("/eventsForm")
+    @ResponseBody
+    public String getLogs(@Valid EventRequestDto eventsDto, BindingResult bindingResult){
+        return String.valueOf(etrackService.getEventsByDateTimeAndBusinessKeys(eventsDto));
+    }
+}
+

src/main/java/com/release11/klaus/controller/MvcExceptionHandler.java

@@ -0,0 +1,33 @@
+package com.release11.klaus.controller;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import javax.validation.ConstraintViolationException;
+import java.util.ArrayList;
+import java.util.List;
+
+@ControllerAdvice
+public class MvcExceptionHandler {
+
+    @ExceptionHandler(ConstraintViolationException.class)
+    public ResponseEntity<List> validationErrorHandler(ConstraintViolationException e){
+        List<String> errors = new ArrayList<>(e.getConstraintViolations().size());
+
+        e.getConstraintViolations().forEach(constraintViolation -> {
+            errors.add(constraintViolation.getPropertyPath() + " : " + constraintViolation.getMessage());
+        });
+        return new ResponseEntity<>(errors, HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(BindException.class)
+    public ResponseEntity<List> handleBindException(BindException ex){
+        return new ResponseEntity(ex.getAllErrors(), HttpStatus.BAD_REQUEST);
+    }
+
+}
+
+