* </p>
 *
 * <p>
 * Example usage:
 * </p>
 *
 * <pre>
 * try {
 *     // Attempt to access a resource
 * } catch (CrawlingAccessException e) {
 *     if (e.isErrorEnabled()) {
 *         // Log the error
 *     }
 * }
 * </pre>
 */
public class CrawlingAccessException extends CrawlerSystemException {

    private static final long serialVersionUID = 1L;

    /**

    void warn(Supplier<String> content);

    void warn(Supplier<String> content, Throwable error);

    /**
     * {@return true if the <b>error</b> error level is enabled}
     */
    boolean isErrorEnabled();

    /**
     * Sends a message to the user in the <b>error</b> error level.
     *
     * @param content the message to log
     */
    void error(CharSequence content);

    /**