* 
 * @author mbechler
 *
 */
public interface Address {

    /**
     * 
     * @param type
     * @return instance for type, null if the type cannot be unwrapped
     */
    <T extends Address> T unwrap ( Class<T> type );


    /**
     * 
     * @return the resolved host name, or the host address if it could not be resolved
     */
    String getHostName ();


    /**

        return null;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.Address#unwrap(java.lang.Class)
     */
    @SuppressWarnings ( "unchecked" )
    @Override
    public <T extends Address> T unwrap ( Class<T> type ) {
        if ( this.addr instanceof Address ) {
            return ( (Address) this.addr ).unwrap(type);
        }
        else if ( this.getClass().isAssignableFrom(type) ) {

     * 
     * @param tc
     *            context to use
     * @param address
     * @param port
     * @param exclusive
     *            whether to acquire an unshared connection
     * @return a transport connection to the target
     */
    SmbTransport getSmbTransport ( CIFSContext tc, Address address, int port, boolean exclusive );


    /**
     * Get transport connection
     * 

        this.addr = addr;
    }

    /**
     * Return the IP address of this address as a 32 bit integer.
     */

    public int hashCode() {
        return addr.hashCode();
    }

    /**
     * Compare two addresses for equality. Two <tt>UniAddress</tt>s are equal
     * if they are both <tt>UniAddress</tt>' and refer to the same IP address.
     */
    public boolean equals( Object obj ) {

        initCache(tc);
    }

    static final class CacheEntry {

        Name hostName;
        NbtAddress address;
        long expiration;


        CacheEntry ( Name hostName, NbtAddress address, long expiration ) {
            this.hostName = hostName;
            this.address = address;
            this.expiration = expiration;
        }
    }


    /**
     * 
     */

    public static String getSearchEngineHttpAddress() {
        final String value = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        if (value != null) {
            return value;
        }
        return System.getProperty(Constants.FESS_ES_HTTP_ADDRESS);
    }

    /**
     * 
     * {@inheritDoc}
     *
     * @see java.lang.AutoCloseable#close()
     */
    @Override
    public void close ();


    /**
     * @return the connected address
     */
    Address getRemoteAddress ();


    /**
     * @return the connected host name
     */
    String getRemoteHostName ();

                    nfe.printStackTrace( log );
            }
        }
        return def;
    }

    /** 
     * Retrieve an <code>InetAddress</code>. If the address is not
     * an IP address and cannot be resolved <code>null</code> will
     * be returned.
     */

    public static InetAddress getInetAddress( String key, InetAddress def ) {
        String addr = prp.getProperty( key );

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.bouncycastle.util.encoders.Base64;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.UniAddress;

public class CrawlerEngineClient extends FesenClient {
    @Override
    protected Client createClient() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] hosts =
                split(address, ",").get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).toArray(n -> new String[n]));