*
     * @return a child context using guest credentials
     */
    CIFSContext withGuestCrendentials();

    /**
     * Create a child context with specified credentials
     *
     * @param creds the credentials to use
     * @return a child context using using the given credentials
     */
    CIFSContext withCredentials(Credentials creds);

    /**

 * The {@code IdnDnsResolver} class implements the {@code DnsResolver} interface
 * to provide DNS resolution with support for Internationalized Domain Names (IDN).
 * It converts Unicode domain names to ASCII Compatible Encoding (ACE) using the
 * {@link java.net.IDN} class.
 *
 * <p>This class allows setting a custom flag for the IDN conversion and a custom
 * encoding for URL decoding.</p>
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code

 * </p>
 * <ol>
 *   <li>Fetching a URL from the queue using {@link UrlQueueService#poll(String)}.</li>
 *   <li>Checking if the URL is valid using {@link #isValid(UrlQueue)}.</li>
 *   <li>Accessing the content using a {@link CrawlerClient} obtained from {@link CrawlerClientFactory}.</li>
 *   <li>Processing the response using a {@link ResponseProcessor} associated with a {@link Rule}.</li>

 *   <li>{@link #convert(String, String, String...)}: Converts the given text using the specified field and languages.</li>
 * </ul>
 *
 * <p>Inner Class:
 * <ul>
 *   <li>LangAnalyzerConverter: A protected inner class that implements the ReadingConverter interface.
 *       It is responsible for converting text using a specific language analyzer.
 *       <ul>

        assertArgumentNotNull("schema", schema);
        return newSchema(SchemaFactoryUtil.newRelaxNgSchemaFactory(), schema);
    }

    /**
     * Creates a {@link Schema} using the specified {@link SchemaFactory}.
     *
     * @param factory
     *            {@link SchemaFactory}. Must not be {@literal null}.
     * @param schema
     *            Schema file. Must not be {@literal null}.

     * Returns the pattern string for {@link DateFormat#SHORT} style using the default locale.
     *
     * @return the pattern string for {@link DateFormat#SHORT} style
     */
    public static String getShortPattern() {
        return getShortPattern(LocaleUtil.getDefault());
    }

    /**
     * Returns the pattern string for {@link DateFormat#SHORT} style using the specified locale.
     *
     * @param locale

            return "Pattern_V1";
        default:
            return "Unknown(0x" + Integer.toHexString(algorithm) + ")";
        }
    }

    /**
     * Compresses data using LZ77 algorithm (implemented using Java's Deflater).
     */
    private byte[] compressLZ77(byte[] data, int offset, int length) throws CIFSException {
        try {
            Deflater deflater = new Deflater(COMPRESSION_LEVEL, false);

            props.load(reader);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Loads the specified file into the {@link Properties} using the given encoding (wraps exception handling).
     *
     * @param props
     *            Property set. Must not be {@literal null}.
     * @param file
     *            File. Must not be {@literal null}.

 * This transformer handles file-based document transformation and content extraction
 * using the Fess file transformation process with support for various file types.
 *
 * <p>It extends AbstractFessFileTransformer to provide specialized file processing
 * capabilities using the appropriate extractor for each file type.</p>
 */
public class FessFileTransformer extends AbstractFessFileTransformer {
    /**

    private Configuration configuration;

    /**
     * Create an authenticator using the JAAS service <code>jcifs</code>
     *
     * This will require that a keytab is configured in this service.
     *
     *
     */
    public JAASAuthenticator() {
        this("jcifs");
    }

    /**
     * Create an authenticator using the given JAAS service
     *