org.apache.commons.net.telnet
Class WindowSizeOptionHandler

java.lang.Object
  org.apache.commons.net.telnet.TelnetOptionHandler
      org.apache.commons.net.telnet.WindowSizeOptionHandler

public class WindowSizeOptionHandler
extends TelnetOptionHandler

Implements the telnet window size option RFC 1073.

Since:

2.0

Version:

$Id: WindowSizeOptionHandler.java 1299238 2012-03-10 17:12:28Z sebb $

Author:

Yuval Kashtan

Field Summary

protected static int

WINDOW_SIZE Window size option

Constructor Summary

WindowSizeOptionHandler(int nWidth, int nHeight)
Constructor for the WindowSizeOptionHandler.

WindowSizeOptionHandler(int nWidth, int nHeight, boolean initlocal, boolean initremote, boolean acceptlocal, boolean acceptremote)
Constructor for the WindowSizeOptionHandler.

Method Summary

int[]	answerSubnegotiation(int[] suboptionData, int suboptionLength) Implements the abstract method of TelnetOptionHandler.
int[]	startSubnegotiationLocal() Implements the abstract method of TelnetOptionHandler.
int[]	startSubnegotiationRemote() Implements the abstract method of TelnetOptionHandler.

Methods inherited from class org.apache.commons.net.telnet.TelnetOptionHandler

getAcceptLocal, getAcceptRemote, getInitLocal, getInitRemote, getOptionCode, setAcceptLocal, setAcceptRemote, setInitLocal, setInitRemote

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

WINDOW_SIZE

protected static final int WINDOW_SIZE

Window size option

See Also:

Constant Field Values

Constructor Detail

WindowSizeOptionHandler

public WindowSizeOptionHandler(int nWidth,
                               int nHeight,
                               boolean initlocal,
                               boolean initremote,
                               boolean acceptlocal,
                               boolean acceptremote)

Constructor for the WindowSizeOptionHandler. Allows defining desired initial setting for local/remote activation of this option and behaviour in case a local/remote activation request for this option is received.

Parameters:

nWidth - - Window width.

nHeight - - Window Height

initlocal - - if set to true, a WILL is sent upon connection.

initremote - - if set to true, a DO is sent upon connection.

acceptlocal - - if set to true, any DO request is accepted.

acceptremote - - if set to true, any WILL request is accepted.

WindowSizeOptionHandler

public WindowSizeOptionHandler(int nWidth,
                               int nHeight)

Constructor for the WindowSizeOptionHandler. Initial and accept behaviour flags are set to false

Parameters:

nWidth - - Window width.

nHeight - - Window Height

Method Detail

answerSubnegotiation

public int[] answerSubnegotiation(int[] suboptionData,
                                  int suboptionLength)

Implements the abstract method of TelnetOptionHandler.

Specified by:

answerSubnegotiation in class TelnetOptionHandler

Parameters:

suboptionData - - the sequence received, whithout IAC SB & IAC SE

suboptionLength - - the length of data in suboption_data

Returns:

terminal type information

startSubnegotiationLocal

public int[] startSubnegotiationLocal()

Implements the abstract method of TelnetOptionHandler. This will send the client Height and Width to the server.

Specified by:

startSubnegotiationLocal in class TelnetOptionHandler

Returns:

array to send to remote system

startSubnegotiationRemote

public int[] startSubnegotiationRemote()

Implements the abstract method of TelnetOptionHandler.

Specified by:

startSubnegotiationRemote in class TelnetOptionHandler

Returns:

always null (no response to subnegotiation)