* Logs a message at the specified level with an associated exception.
     *
     * @param level the severity level of the message
     * @param message the message to be logged
     * @param error the associated exception, or null if not applicable
     */
    void log(@Nonnull Level level, @Nonnull String message, @Nullable Throwable error);

    /**
     * Logs a debug message without an associated exception.
     *

  }

  @Override
  public String toString() {
    return map.toString();
  }

  /**
   * If {@code key} is not already associated with a value or if {@code key} is associated with
   * zero, associate it with {@code newValue}. Returns the previous value associated with {@code
   * key}, or zero if there was no mapping for {@code key}.
   */
  long putIfAbsent(K key, long newValue) {

     * and the array is sorted by weight in descending order.
     * If no extractor exists for the key, a new array containing the extractor is created and associated with the key.
     *
     * @param key       The key associated with the extractor. Must not be null or blank.
     * @param extractor The extractor to add. Must not be null.
     */
    public void addExtractor(final String key, final Extractor extractor) {

    /**
     * List of images associated with this URL.
     * Used for Google Image Sitemap extension.
     */
    private List<SitemapImage> images;

    /**
     * List of videos associated with this URL.
     * Used for Video Sitemap extension.
     */
    private List<SitemapVideo> videos;

    /**
     * News information associated with this URL.

        return Optional.ofNullable(location);
    }

    /**
     * Returns the path type associated to the given {@code javax.tool} location.
     * This method is the converse of {@link #location()}.
     *
     * @param location identification of a path in the {@code javax.tool} API
     * @return Java path type associated to the given location
     */

    private CrawlingParameterUtil() {
    }

    /**
     * Retrieves the current thread's {@link UrlQueue} instance.
     *
     * @return the {@link UrlQueue} instance associated with the current thread, or {@code null} if none is set.
     */
    public static UrlQueue<?> getUrlQueue() {
        return URL_QUEUE_THREAD_LOCAL.get();
    }

    /**

        metadata.put(key, new String[] { value });
    }

    /**
     * Gets the values associated with a given key from the metadata.
     *
     * @param key the metadata key
     * @return the values associated with the key, or null if not found
     */
    public String[] getValues(final String key) {
        return metadata.get(key);
    }

    /**
     * Gets the set of all metadata keys.
     *

        this.tempFile = tempFile;
        fileInputStream = new FileInputStream(tempFile);
    }

    /**
     * Returns the temporary file associated with this input stream.
     *
     * @return the temporary file
     */
    public File getTemporaryFile() {
        return tempFile;
    }

    /*
     * (non-Javadoc)
     *

        if (totalHits != null) {
            return totalHits.value();
        }
        return 0;
    }

    /**
     * Deletes all documents associated with the specified session ID.
     *
     * @param sessionId the session ID to delete documents for
     * @return the number of documents that were deleted
     */

    private volatile Exception error;

    /**
     * Create new RDMA work request
     *
     * @param requestId unique request identifier
     * @param type type of request
     * @param memoryRegion associated memory region
     */
    public RdmaWorkRequest(long requestId, RequestType type, RdmaMemoryRegion memoryRegion) {
        this.requestId = requestId;
        this.type = type;
        this.memoryRegion = memoryRegion;