dc_list_expiration = now + CACHE_POLICY * 1000L;
                    if (list != null && list.length > 0) {
                        dc_list = list;
                    } else { /* keep using the old list */
                        dc_list_expiration = now + 1000 * 60 * 15; /* 15 min */
                        if (LogStream.level >= 2) {
                            SmbTransport.log.println("Failed to retrieve DC list from WINS");

        @Option(name = "-t", aliases = "--numOfThreads", metaVar = "numOfThreads", usage = "The number of threads")
        protected int numOfThreads = 1;

        /**
         * Whether to run in cleanup mode to remove old thumbnails.
         */
        @Option(name = "-c", aliases = "--cleanup", usage = "Clean-Up mode")
        protected boolean cleanup;

        /**
         * Default constructor for command-line options.

        if (keyManager != null) {
            // Rotate keys in SecureKeyManager
            String encKeyId = sessionId + "-enc";
            String decKeyId = sessionId + "-dec";

            // Remove old keys
            keyManager.removeSessionKey(encKeyId);
            keyManager.removeSessionKey(decKeyId);

            // Store new keys
            keyManager.storeSessionKey(encKeyId, newEncryptionKey, "AES");

                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("Mapping file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());

                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("Protwords file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());

                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("Stopwords file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());

            generatorList.add(generator);
        } else if (logger.isDebugEnabled()) {
            logger.debug("{} is not available.", generator.getName());
        }
    }

    /**
     * Purges old thumbnail files based on the expiry time.
     *
     * @param expiry the expiry time threshold
     * @return the number of files purged
     */
    public long purge(final long expiry) {

                    return oldItem;
                }
                if (!item.equals(oldItem)) {
                    throw new DictionaryException("StemmerOverride file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());

                this.dcListExpiration = now + this.netbiosCacheTimeout * 1000L;
                if (list != null && list.length > 0) {
                    this.dcList = list;
                } else { /* keep using the old list */
                    this.dcListExpiration = now + 1000 * 60 * 15; /* 15 min */
                    log.warn("Failed to retrieve DC list from WINS");
                }
            }

    /** The key of the message: Delete old search logs */
    public static final String LABELS_purge_search_log_day = "{labels.purge_search_log_day}";

    /** The key of the message: Delete old job logs */
    public static final String LABELS_purge_job_log_day = "{labels.purge_job_log_day}";

    /** The key of the message: Delete old user logs */