private FrontLineWorker processInstance(Map<String, Object> record, State state) {
    String mctsFlwId = (String) record.get(ID);
    Long contactNumber = (Long) record.get(CONTACT_NO);
    String name = (String) record.get(NAME);
    Long districtId = (Long) record.get(DISTRICT_ID);
    District district = getDistrictById(state, districtId);

    FrontLineWorker instance = new FrontLineWorker(contactNumber);
    instance.setMctsFlwId(mctsFlwId);
    instance.setName(name);
    instance.setDistrict(district);
    if (null != district) {
      instance.setLanguage(district.getLanguage());
    }
    return instance;
  }