form.suggestDocuments = fessConfig.isSuggestDocuments() ? Constants.TRUE : Constants.FALSE;
        form.purgeSuggestSearchLogDay = fessConfig.getPurgeSuggestSearchLogDay();
        form.ldapProviderUrl = fessConfig.getLdapProviderUrl();
        form.ldapSecurityPrincipal = fessConfig.getLdapSecurityPrincipal();
        form.ldapAdminSecurityPrincipal = fessConfig.getLdapAdminSecurityPrincipal();
        form.ldapAdminSecurityCredentials =

        return createEnvironment(//
                fessConfig.getLdapInitialContextFactory(), //
                fessConfig.getLdapSecurityAuthentication(), fessConfig.getLdapProviderUrl(), //
                fessConfig.getLdapAdminSecurityPrincipal(), //
                fessConfig.getLdapAdminSecurityCredentials());
    }

    /**
     * Creates the search environment for LDAP connection.

    }

    default void setLdapProviderUrl(final String value) {
        setSystemProperty(Constants.LDAP_PROVIDER_URL, value);
    }

    default String getLdapProviderUrl() {
        return getSystemProperty(Constants.LDAP_PROVIDER_URL);
    }

    default void setLdapSecurityPrincipal(final String value) {
        setSystemProperty(Constants.LDAP_SECURITY_PRINCIPAL, value);