SMA-91: added global ExceptionHandler

backend/sportsmatch/src/main/java/com/sportsmatch/configs/GlobalExceptionHandler.java

@@ -0,0 +1,33 @@
+package com.sportsmatch.configs;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+import javax.security.sasl.AuthenticationException;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+  // handle request body
+  @ExceptionHandler(HttpMessageNotReadableException.class)
+  public ResponseEntity<?> handleHttpMessageNotReadableException(
+      HttpMessageNotReadableException e) {
+    return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(e.getMessage());
+  }
+
+  // handle parameter with @Valid
+  @ExceptionHandler(MethodArgumentNotValidException.class)
+  public ResponseEntity<?> handleMethodArgumentNotValidException(
+      MethodArgumentNotValidException e) {
+    return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(e.getMessage());
+  }
+
+  @ExceptionHandler(AuthenticationException.class)
+  public ResponseEntity<?> handleAuthenticationException(AuthenticationException e) {
+    return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(e.getMessage());
+  }
+}