private final Set<HttpUrl> fetchedUrls = Collections.synchronizedSet(new LinkedHashSet<>());
  private final LinkedBlockingQueue<HttpUrl> queue = new LinkedBlockingQueue<>();
  private final ConcurrentHashMap<String, AtomicInteger> hostnames = new ConcurrentHashMap<>();

  public Crawler(OkHttpClient client) {
    this.client = client;
  }

  private void parallelDrainQueue(int threadCount) {

 * hostnames on LANs and WANs that support a mixture of NetBIOS/WINS and
 * DNS resolvable hosts.
 */

public class UniAddress implements Address {

    /**
     * Check whether a hostname is actually an ip address
     * 
     * @param hostname
     * @return whether this is an IP address
     */
    public static boolean isDotQuadIP ( String hostname ) {

     *
     * @param hostname NetBIOS or DNS hostname to resolve
     * @throws java.net.UnknownHostException if there is an error resolving the name
     */

    public static UniAddress getByName( String hostname )
                                        throws UnknownHostException {
        return getByName( hostname, false );
    }

    static boolean isDotQuadIP( String hostname ) {

        }
        return def;
    }

    /**
     * Retrieve an array of <tt>InetAddress</tt> created from a property
     * value containting a <tt>delim</tt> separated list of hostnames and/or
     * ipaddresses.
     */

    public static InetAddress[] getInetAddressArray( String key, String delim, InetAddress[] def ) {
        String p = getProperty( key );
        if( p != null ) {

    /**
     * Set the value of hostname, used in parameter comment. <br>
     * Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param hostname The parameter value of hostname. (NotNull)
     */
    public void setHostname(String hostname) {
        registerVariable("hostname", hostname);
    }

    }


    @Override
    public Address getByName ( String hostname ) throws UnknownHostException {
        return this.nscl.getByName(hostname);
    }


    @Override
    public Address getByName ( String hostname, boolean possibleNTDomainOrWorkgroup ) throws UnknownHostException {
        return this.nscl.getByName(hostname, possibleNTDomainOrWorkgroup);
    }


    @Override

            public void stripPathConsumed ( int i ) {}
        };
        dfs.cache(context, "\\" + hostname + "\\" + root + path, dr);
        DfsReferralData ref = dfs.resolve(context, hostname, root, path + "lalala\\foo\\");
        assertNotNull(ref);
        DfsReferralData ref2 = dfs.resolve(context, hostname, root, path + "lalala\\foo");
        assertNotNull(ref2);
    }


    /**
     * @return

/**
 * @author codelibs
 * @author Shunji Makino
 */
public class CreateForm {

    @ValidateTypeFailure
    public Integer crudMode;

    @Size(max = 100)
    public String hostname;

    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer port;

    @Size(max = 100)
    public String authRealm;

    @Size(max = 10)

            cb.query().docMeta().setId_Equal(fileAuthenticationPager.id);
        }
        // TODO Long, Integer, String supported only.

        // setup condition
        cb.query().addOrderBy_Hostname_Asc();

        // search

    }

    public List<FileAuthentication> getFileAuthenticationList(final String fileConfigId) {
        return fileAuthenticationBhv.selectList(cb -> {

            doColumn("createdTime");
        }

        public void columnFileConfigId() {
            doColumn("fileConfigId");
        }

        public void columnHostname() {
            doColumn("hostname");
        }

        public void columnParameters() {
            doColumn("parameters");
        }

        public void columnPassword() {
            doColumn("password");
        }