public class ResourceUtil {
    private static final String FESS_OVERRIDE_CONF_PATH = "FESS_OVERRIDE_CONF_PATH";

    private static final String FESS_APP_TYPE = "FESS_APP_TYPE";

    private static final String FESS_APP_DOCKER = "docker";

    protected ResourceUtil() {
        // nothing
    }

    public static String getFesenHttpUrl() {
        final String url = SystemUtil.getSearchEngineHttpAddress();
        if (url != null) {