}

    public static FileTypeHelper getFileTypeHelper() {
        return getComponent(FILE_TYPE_HELPER);
    }

    public static IndexUpdater getIndexUpdater() {
        return getComponent(INDEX_UPDATER);
    }

    public static KeyMatchHelper getKeyMatchHelper() {
        return getComponent(KEY_MATCH_HELPER);
    }

            crawlerList.add(crawler);
            crawlerStatusList.add(Constants.READY);
        }

        // run index update
        final IndexUpdater indexUpdater = ComponentUtil.getIndexUpdater();
        indexUpdater.setName("IndexUpdater");
        indexUpdater.setPriority(indexUpdaterPriority);
        indexUpdater.setSessionIdList(sessionIdList);
        indexUpdater.setDaemon(true);