Setting vehiclecounts.doorcounts as mandatory value

Author: thjarvin

src/main/java/fi/hsl/common/passengercount/PassengerCountParser.java

@@ -135,6 +135,9 @@ public Optional<PassengerCount.Payload> parsePayload(@NotNull ApcJson json) {
                 }
                 vehicleBuilder.addDoorCounts(doorCountBuilder);
             }
+        } else {
+            log.warn("Field 'doorcounts' is null for vehicle {}/{}", payload.oper, payload.veh);
+            return Optional.empty();
         }
 
         payloadBuilder.setVehicleCounts(vehicleBuilder);