org.apache.commons.net.telnet

Class EchoOptionHandler


public class EchoOptionHandler
extends TelnetOptionHandler

Implements the telnet echo option RFC 857.

Author:
Bruno D'Avanzo

Field Summary

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

acceptLocal, acceptRemote, doFlag, initialLocal, initialRemote, optionCode, willFlag

Constructor Summary

EchoOptionHandler()
Constructor for the EchoOptionHandler.
EchoOptionHandler(boolean initlocal, boolean initremote, boolean acceptlocal, boolean acceptremote)
Constructor for the EchoOptionHandler.

Method Summary

int[]
answerSubnegotiation(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

answerSubnegotiation, getAcceptLocal, getAcceptRemote, getDo, getInitLocal, getInitRemote, getOptionCode, getWill, setAcceptLocal, setAcceptRemote, setDo, setInitLocal, setInitRemote, setWill, startSubnegotiationLocal, startSubnegotiationRemote

Constructor Details

EchoOptionHandler

public EchoOptionHandler()
Constructor for the EchoOptionHandler. Initial and accept behaviour flags are set to false


EchoOptionHandler

public EchoOptionHandler(boolean initlocal,
                         boolean initremote,
                         boolean acceptlocal,
                         boolean acceptremote)
Constructor for the EchoOptionHandler. 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:
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.

Method Details

answerSubnegotiation

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

Overrides:
answerSubnegotiation in interface TelnetOptionHandler

Parameters:
suboptionLength - - the length of data in suboption_data

Returns:
always null (no response to subnegotiation)


startSubnegotiationLocal

public int[] startSubnegotiationLocal()
Implements the abstract method of TelnetOptionHandler.

Overrides:
startSubnegotiationLocal in interface TelnetOptionHandler

Returns:
always null (no response to subnegotiation)


startSubnegotiationRemote

public int[] startSubnegotiationRemote()
Implements the abstract method of TelnetOptionHandler.

Overrides:
startSubnegotiationRemote in interface TelnetOptionHandler

Returns:
always null (no response to subnegotiation)