* @return An optional entity of a data config.
     */
    public static OptionalEntity<DataConfig> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new DataConfig()).map(entity -> {
                entity.setCreatedBy(username);
                entity.setCreatedTime(currentTime);

    /** The key of the configuration. e.g. boostdoc */
    String ONLINE_HELP_NAME_BOOSTDOC = "online.help.name.boostdoc";

    /** The key of the configuration. e.g. dataconfig */
    String ONLINE_HELP_NAME_DATACONFIG = "online.help.name.dataconfig";

    /** The key of the configuration. e.g. systeminfo */
    String ONLINE_HELP_NAME_SYSTEMINFO = "online.help.name.systeminfo";