ret = creator.purge(startTime);
        }
        return ret;
    }

    private int create() {
        if (!ComponentUtil.getFessConfig().isSuggestDocuments() && !ComponentUtil.getFessConfig().isSuggestSearchLog()) {
            logger.info("Skipped to create new suggest index.");
            return 0;
        }

        final SuggestHelper suggestHelper = ComponentUtil.getSuggestHelper();

            if (StringUtil.isNotBlank(key)) {
                builder.addTag(key);
            }

            builder.addKind(SuggestItem.Kind.USER.toString());
            if (ComponentUtil.getFessConfig().isSuggestSearchLog()) {
                builder.addKind(SuggestItem.Kind.QUERY.toString());
            }
            if (ComponentUtil.getFessConfig().isSuggestDocuments()) {

            }
            // insert search log
            storeSearchLogList(searchLogList);
            // update suggest index
            if (fessConfig.isSuggestSearchLog()) {
                final SuggestHelper suggestHelper = ComponentUtil.getSuggestHelper();
                suggestHelper.indexFromSearchLog(searchLogList);
            }
        }
    }

    /**

    }

    default void setSuggestSearchLog(final boolean value) {
        setSystemPropertyAsBoolean(Constants.SUGGEST_SEARCH_LOG_PROPERTY, value);
    }

    default boolean isSuggestSearchLog() {
        return getSystemPropertyAsBoolean(Constants.SUGGEST_SEARCH_LOG_PROPERTY, true);
    }

    default void setSuggestDocuments(final boolean value) {