How to use

hasUa

method

in

com.google.openrtb.OpenRtb$BidRequest$Device

/**
 * Make a device object
 */
void makeDevice() {
  if (!internal.hasDevice())
    return;
  
  Device d = internal.getDevice();
  ObjectNode node = BidRequest.factory.objectNode();
  if (d.hasIp()) node.put("ip",d.getIp());
  if (d.hasLanguage()) node.put("language", d.getLanguage());
  if (d.hasOs()) node.put("os",d.getOs());
  if (d.hasOsv()) node.put("osv",d.getOsv());
  if (d.hasCarrier()) node.put("carrier",d.getCarrier());
  if (d.hasConnectiontype()) node.put("connectiontype",d.getConnectiontype().getNumber());
  if (d.hasDidmd5()) node.put("didmd5",d.getDidmd5());
  if (d.hasDidsha1()) node.put("didsha1",d.getDidsha1());
  if (d.hasDpidsha1())node.put("dpidsha1",d.getDpidsha1());
  if (d.hasDnt()) node.put("dnt",d.getDnt());
  if (d.hasDevicetype()) node.put("devicetype", d.getDevicetype().getNumber());
  if (d.hasUa()) node.put("ua", d.getUa());
  if (d.hasJs()) node.put("js", d.getJs());
  if (internal.getDevice().hasGeo())  addGeo(node,d.getGeo());
  root.put("device", node);
  
}

protected void writeDeviceFields(Device device, JsonGenerator gen) throws IOException {
 if (device.hasUa()) {
  gen.writeStringField("ua", device.getUa());