1 files changed, 10 insertions, 2 deletions
diff --git a/src/main/scala/xyz/driver/pdsuicommon/validation/AdditionalConstraints.scala b/src/main/scala/xyz/driver/pdsuicommon/validation/AdditionalConstraints.scala
index 115163c..cb1082f 100644
--- a/src/main/scala/xyz/driver/pdsuicommon/validation/AdditionalConstraints.scala
+++ b/src/main/scala/xyz/driver/pdsuicommon/validation/AdditionalConstraints.scala
@@ -5,17 +5,25 @@ import play.api.data.validation._
 
 object AdditionalConstraints {
 
+  val nonNegativePrintedNumber: Constraint[String] = {
+    Constraints.pattern("^\\d+$".r, "printedInt.nonNegative", "must be a non-negative number")
+  }
+
+  val positivePrintedNumber: Constraint[String] = {
+    Constraints.pattern("^[1-9]\\d*$".r, "printedInt.positive", "must be a positive number")
+  }
+
   val optionNonEmptyConstraint: Constraint[Option[Any]] = {
     Constraint("option.nonEmpty") {
       case Some(x) => Valid
-      case None => Invalid("is empty")
+      case None    => Invalid("is empty")
     }
   }
 
   val tristateSpecifiedConstraint: Constraint[Tristate[Any]] = {
     Constraint("tristate.specified") {
       case Tristate.Unspecified => Invalid("unspecified")
-      case _ => Valid
+      case _                    => Valid
     }
   }