first version of new validation algorithm, that is a lot faster

src/main/java/ninja/javafx/smartcsv/validation/DateValidation.java

@@ -0,0 +1,28 @@
+package ninja.javafx.smartcsv.validation;
+
+import static org.apache.commons.validator.GenericValidator.isDate;
+
+/**
+ * Created by abi on 07.08.2016.
+ */
+public class DateValidation implements Validation {
+
+    private String dateformat;
+
+    public DateValidation(String dateformat) {
+        assert dateformat != null && !dateformat.trim().isEmpty() : "empty date format for date validation";
+        this.dateformat = dateformat;
+    }
+
+    @Override
+    public void check(int row, String value, ValidationError error) {
+        if (!isDate(value, dateformat, true)) {
+            error.add("validation.message.date.format", dateformat);
+        }
+    }
+
+    @Override
+    public Type getType() {
+        return Type.DATE;
+    }
+}