}
            connection.setRequestProperty(key, value.toString());
        }
        connection.setAllowUserInteraction(allowUserInteraction);
        connection.setDoInput(doInput);
        connection.setDoOutput(doOutput);
        connection.setIfModifiedSince(ifModifiedSince);
        connection.setUseCaches(useCaches);
    }

     */

    protected abstract void doConnect () throws Exception;


    /*
     * Tear down a connection. If the hard parameter is true, the diconnection
     * procedure should not initiate or wait for any outstanding requests on
     * this transport.
     */

    protected abstract boolean doDisconnect ( boolean hard, boolean inUse ) throws IOException;


    /**
     * Connect the transport

        }
    }

    /* Build a connection. Only one thread will ever call this method at
     * any one time. If this method throws an exception or the connect timeout
     * expires an encapsulating TransportException will be thrown from connect
     * and the transport will be in error.
     */

    protected abstract void doConnect() throws Exception;

    /* Tear down a connection. If the hard parameter is true, the diconnection

     */
    boolean isTrustedDomain ( CIFSContext tf, String domain ) throws CIFSException;


    /**
     * Get a connection to the domain controller for a given domain
     * 
     * @param domain
     * @param tf
     * @return connection
     * @throws CIFSException
     * @throws jcifs.smb.SmbAuthException
     */
    SmbTransport getDc ( CIFSContext tf, String domain ) throws CIFSException;

    }


    /**
     * Get a handle to a service
     * 
     * @param url
     * @param tc
     * @param unshared
     *            whether an exclusive connection should be used
     * @return a DCERPC handle for the given url
     * @throws MalformedURLException
     * @throws DcerpcException
     */

                            transport.ensureConnected();
                            return transport;
                        }
                        catch ( IOException ex ) {
                            log.debug("Connection failed " + dr.getServer(), ex);
                            e = ex;
                            dr = dr.next();
                            continue;
                        }
                    }

                }
                break;
            case ERR_SSN_SRVC:
                result += "ERR_SSN_SRVC/";
                switch( errorCode ) {
                    case CONNECTION_REFUSED:
                        result += "Connection refused";
                        break;
                    case NOT_LISTENING_CALLED:
                        result += "Not listening on called name";
                        break;

    /**
     * @return whether the transport has been disconnected
     */
    boolean isDisconnected ();


    /**
     * @param hard
     * @param inuse
     * @return whether the connection was in use
     * @throws IOException
     */
    boolean disconnect ( boolean hard, boolean inuse ) throws IOException;


    /**
     * @return whether the transport was connected
     * @throws SmbException

import java.net.URL;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.UnsupportedCharsetException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;

import org.junit.Assume;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;

    /**
     * Pipe is used for DCE
     */
    public static final int PIPE_TYPE_DCE_TRANSACT = 0x0200 | 0x0400;

    /**
     * Pipe should use it's own exclusive transport connection
     */
    public static final int PIPE_TYPE_UNSHARED = 0x800;


    /**
     * @return the type of the pipe
     */
    int getPipeType ();


    /**
     * Create a pipe handle
     *