}

    protected SsoAuthenticator getAuthenticator() {
        final String name = getSsoType() + "Authenticator";
        if (ComponentUtil.hasComponent(name)) {
            return ComponentUtil.getComponent(name);
        }
        return null;
    }

    protected String getSsoType() {
        return ComponentUtil.getFessConfig().getSsoType();
    }

    public SsoAuthenticator[] getAuthenticators() {

            @Override
            public String getOsddLinkEnabled() {
                return "auto";
            }

            @Override
            public String getSsoType() {
                return "none";
            }
        });
        final OsddHelper osddHelper = new OsddHelper();
        osddHelper.setContentType("application/opensearchdescription+xml");
        osddHelper.init();

            return true;
        }

        if (!Constants.AUTO.equalsIgnoreCase(osddLinkEnabled)) {
            return false;
        }

        final String ssoType = fessConfig.getSsoType();
        return StringUtil.isBlank(ssoType) || Constants.NONE.equalsIgnoreCase(ssoType);
    }

    public boolean hasOpenSearchFile() {
        return osddFile != null;
    }

    }

    default boolean isAzureAdUseDomainServices() {
        return Constants.TRUE.equalsIgnoreCase(getSystemProperty("aad.use.ds", "true"));
    }

    default String getSsoType() {
        return getSystemProperty(Constants.SSO_TYPE_PROPERTY, Constants.NONE);
    }

    //
    // fess_*.properties
    //

    String getAuthenticationAdminRoles();