src/main/java/com/klaroworks/runtime/exception/GlobalExceptionHandler.java

@@ -0,0 +1,37 @@
+package com.klaroworks.runtime.exception;
+
+import com.klaroworks.runtime.dto.ApiResponse;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+    
+    @ExceptionHandler(BusinessException.class)
+    public ResponseEntity<ApiResponse<Void>> handleBusinessException(BusinessException ex) {
+        log.warn("Business exception: {}", ex.getErrorCode().getCode());
+        return ResponseEntity.status(ex.getErrorCode().getHttpStatus())
+                .body(ApiResponse.error(ex.getErrorCode()));
+    }
+    
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseEntity<ApiResponse<Void>> handleValidationException(MethodArgumentNotValidException ex) {
+        var errors = ex.getBindingResult().getFieldErrors().stream()
+                .collect(java.util.stream.Collectors.toMap(
+                        e -> e.getField(), e -> e.getDefaultMessage()));
+        log.warn("Validation failed: {}", errors);
+        return ResponseEntity.badRequest()
+                .body(ApiResponse.error(ErrorCode.INVALID_REQUEST, errors));
+    }
+    
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ApiResponse<Void>> handleGenericException(Exception ex) {
+        log.error("Unexpected error", ex);
+        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR)
+                .body(ApiResponse.error(ErrorCode.INTERNAL_SERVER_ERROR));
+    }
+}