public static final String LABELS_default_sort_value = "{labels.default_sort_value}";

    /** The key of the message: Virtual Hosts */
    public static final String LABELS_virtual_host_value = "{labels.virtual_host_value}";

    /** The key of the message: Append Params to URL */
    public static final String LABELS_append_query_param_enabled = "{labels.append_query_param_enabled}";

    public String appValue;

    @Size(max = 1000)
    public String defaultLabelValue;

    @Size(max = 1000)
    public String defaultSortValue;

    @Size(max = 10000)
    public String virtualHostValue;

    @Size(max = 10)
    public String appendQueryParameter;

    @Size(max = 10)
    public String loginRequired;

    @Size(max = 10)
    public String resultCollapsed;

    @Size(max = 10)

        fessConfig.setAppValue(form.appValue);
        fessConfig.setDefaultLabelValue(form.defaultLabelValue);
        fessConfig.setDefaultSortValue(form.defaultSortValue);
        fessConfig.setVirtualHostValue(form.virtualHostValue);
        fessConfig.setAppendQueryParameter(isCheckboxEnabled(form.appendQueryParameter));
        fessConfig.setIgnoreFailureType(form.ignoreFailureType);