class HttpClient extends RestClient {

    public void addAdditionalHeader(String name, String value) {
        try {
            if (isNotBlank(name) && isNotBlank(value)) {
                headerMap.put(name, value);
            } else {
                log.warn("Not adding " + name + " to headers.");
            }
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }
    }

      HttpClient(URL host, String contentType, ONAPComponentsList targetEntity);
      HttpClient(URL host, String acceptType, String contentType, ONAPComponentsList targetEntity);

}