result.setCreatedBy(DfTypeUtil.toString(source.get("createdBy")));
            result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setHostname(DfTypeUtil.toString(source.get("hostname")));
            result.setParameters(DfTypeUtil.toString(source.get("parameters")));
            result.setPassword(DfTypeUtil.toString(source.get("password")));

     * 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);
    }

    /**
     * Set the value of jobname, used in parameter comment. <br>

                    postcard.setDataIndexSize(getValueFromMap(dataMap, "dataIndexSize", "0"));
                    postcard.setDataIndexExecTime(getValueFromMap(dataMap, "dataIndexExecTime", "0"));
                    postcard.setHostname(getValueFromMap(dataMap, "hostname", StringUtil.EMPTY));
                    postcard.setWebFsCrawlEndTime(getValueFromMap(dataMap, "webFsCrawlEndTime", StringUtil.EMPTY));

     * 
     * @return the hostname associated with the address
     */
    @Override
    public String getHostName () {
        if ( this.addr instanceof NbtAddress ) {
            return ( (NbtAddress) this.addr ).getHostName();
        }
        return ( (InetAddress) this.addr ).getHostName();
    }


    /**
     * Return the IP address as text such as "192.168.1.15".
     * 

                final String domain = map.get("domain");
                smbAuth.setDomain(domain == null ? StringUtil.EMPTY : domain);
                smbAuth.setServer(fileAuth.getHostname());
                smbAuth.setPort(fileAuth.getPort() == null ? -1 : fileAuth.getPort());
                smbAuth.setUsername(fileAuth.getUsername());
                smbAuth.setPassword(fileAuth.getPassword());

            return new FormScheme(parameterMap);
        }
        return null;
    }

    private AuthScope getAuthScope() {
        if (StringUtil.isBlank(getHostname())) {
            return AuthScope.ANY;
        }

        int p;
        if (getPort() == null) {
            p = AuthScope.ANY_PORT;
        } else {
            p = getPort();
        }

    }

    /**
     * Return the hostname of this address such as "MYCOMPUTER".
     */

    public String getHostName() {
        if( addr instanceof NbtAddress ) {
            return ((NbtAddress)addr).getHostName();
        }
        return ((InetAddress)addr).getHostName();
    }

    /**
     * Return the IP address as text such as "192.168.1.15".
     */

                if ( this.getNameType() == 0x1D ) {
                    for ( int i = 0; i < addrs.length; i++ ) {
                        if ( addrs[ i ].getNameType() == 0x20 ) {
                            return addrs[ i ].getHostName();
                        }
                    }
                    return null;
                }
                else if ( this.isDataFromNodeStatus ) {
                    /*

     */
    <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 the IP address as text such as "192.168.1.15".
     * 
     * @return the ip address
     */
    String getHostAddress ();


    /**
     * 

        assertNotNull(systemHelper.getHostname());
        try {
            envMap.put("COMPUTERNAME", "xxx");
            assertEquals("xxx", systemHelper.getHostname());
        } finally {
            envMap.remove("COMPUTERNAME");
        }
        try {
            envMap.put("HOSTNAME", "yyy");
            assertEquals("yyy", systemHelper.getHostname());
        } finally {