/**
     * Flag indicating whether to wait on folder operations.
     */
    protected boolean noWaitOnFolder = false;

    /**
     * Increments the active thread count.
     */
    protected void startCrawling() {
        synchronized (crawlerContext.activeThreadCountLock) {
            crawlerContext.activeThreadCount++;
        }
    }

    /**
     * Decrements the active thread count.
     */

     */
    @Override
    public void log(final LogType key, final Object... objs) {
        switch (key) {
        case START_THREAD:
            processStartThread(objs);
            break;
        case START_CRAWLING:
            processStartCrawling(objs);
            break;
        case CLEANUP_CRAWLING:
            processCleanupCrawling(objs);
            break;
        case UNSUPPORTED_URL_AT_CRAWLING_STARTED: