bff/src/main/java/se/su/dsv/studentportalen/bff/exception/ValidationException.java

@@ -0,0 +1,47 @@
+package se.su.dsv.studentportalen.bff.exception;
+
+import org.springframework.http.HttpStatus;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Exception for validation errors, including field-level violations.
+ * Used for both BFF validation failures and mapped Daisy validation errors.
+ */
+public class ValidationException extends StudentportalenException {
+
+    private final Map<String, List<String>> violations;
+
+    public ValidationException(String message) {
+        this(message, Map.of());
+    }
+
+    public ValidationException(String message, Map<String, List<String>> violations) {
+        super(message);
+        this.violations = violations != null ? Map.copyOf(violations) : Map.of();
+    }
+
+    @Override
+    public String getType() {
+        return "studentportalen:validation-error";
+    }
+
+    @Override
+    public String getTitle() {
+        return "Validation failed";
+    }
+
+    @Override
+    public HttpStatus getStatus() {
+        return HttpStatus.BAD_REQUEST;
+    }
+
+    /**
+     * Field-level validation errors.
+     * Keys are field names, values are lists of error messages.
+     */
+    public Map<String, List<String>> getViolations() {
+        return violations;
+    }
+}