CRAWLING_EXCEPTION,
    /** Indicates no URL is available in the queue. */
    NO_URL_IN_QUEUE,
    /** Indicates the start of a crawler thread. */
    START_THREAD,
    /** Indicates the finish of a crawler thread. */
    FINISHED_THREAD,
    /** Indicates no response processor is available. */
    NO_RESPONSE_PROCESSOR,
    /** Indicates no rule is available for processing. */
    NO_RULE,

    /**
     * Returns the number of bytes that can be read from this input stream without blocking.
     *
     * @return the number of bytes available
     * @throws IOException if an I/O error occurs
     */
    @Override
    public int available() throws IOException {
        return inputStream.available();
    }

    /**
     * Indicates whether some other object is equal to this one.
     *

     * @return the component instance of the specified type
     */
    <T> T getComponent(String name);

    /**
     * Checks if the crawler container is available.
     *
     * @return true if the crawler container is available, false otherwise.
     */
    boolean available();

    /**
     * Cleans up resources and performs any necessary finalization tasks
     * before the object is destroyed. This method should be called to

    }

    @Override
    public <T> T getComponent(final String name) {
        return SingletonLaContainerFactory.getContainer().getComponent(name);
    }

    @Override
    public boolean available() {
        return SingletonLaContainerFactory.hasContainer();
    }

    @Override
    public void destroy() {
        SingletonLaContainerFactory.destroy();
    }

     * @see java.io.InputStream#read()
     */
    @Override
    public int read() throws IOException {
        return fileInputStream.read();
    }

    @Override
    public int available() throws IOException {
        return fileInputStream.available();
    }

    /**
     * Closes this input stream and releases any system resources associated with the stream.
     * @throws IOException if an I/O error occurs.
     */

/**
 * Exception thrown when there is an issue with the suggest settings.
 * This exception extends {@link RuntimeException}, so it is an unchecked exception.
 *
 * <p>There are three constructors available for this exception:</p>
 * <ul>
 *   <li>{@link #SuggestSettingsException(String)}: Constructs a new exception with the specified detail message.</li>

     */
    public CrawlerClientFactory() {
        // NOP
    }

    /**
     * Initializes the CrawlerClientFactory.
     * Attempts to register itself with a "crawlerClientCreator" component if available.
     */
    @PostConstruct
    public void init() {
        try {
            final CrawlerClientCreator creator = crawlerContainer.getComponent("crawlerClientCreator");
            if (creator != null) {

        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to create {}.", componentName, e);
            } else {
                logger.info("{} is not available.", componentName);
            }
        }
    }

    /**
     * Sets the maximum client factory size.
     * @param maxClientFactorySize The maximum size.
     */

 * It implements the {@link Sitemap} interface.
 *
 * <p>
 * A Sitemap file provides search engines with a list of URLs available for crawling.
 * This class encapsulates the essential attributes of a Sitemap entry, allowing for efficient management
 * and processing of Sitemap data.
 * </p>
 *
 * <p>

 * </ul>
 *
 * <p>Passwords are matched against URLs or resource names using regular expression patterns.
 * The extractor first tries to match against the URL, then falls back to the resource name if available.
 *
 * @author shinsuke
 */
public abstract class PasswordBasedExtractor extends AbstractExtractor {

    /** Logger instance for this class. */