com.oroinc.net.telnet
Class TelnetClient

java.lang.Object
  |
  +--com.oroinc.net.SocketClient
        |
        +--com.oroinc.net.telnet.Telnet
              |
              +--com.oroinc.net.telnet.TelnetClient

Direct Known Subclasses:

FTP

public class TelnetClient

extends com.oroinc.net.telnet.Telnet

The TelnetClient class implements the simple network virtual terminal (NVT) for the Telnet protocol according to RFC 854. It does not implement any of the extra Telnet options because it is meant to be used within a Java program providing automated access to Telnet accessible resources. A telnet client implementing extra options and meant for use with a terminal emulator can be found in NetComponents Pro ^TM

The class can be used by first connecting to a server using the SocketClient connect method. Then an InputStream and OutputStream for sending and receiving data over the Telnet connection can be obtained by using the getInputStream() and getOutputStream() methods. When you finish using the streams, you must call disconnect rather than simply closing the streams.

Author:

Daniel F. Savarese

Fields inherited from class com.oroinc.net.SocketClient

_defaultPort_, _input_, _isConnected_, _output_, _socket_, _socketFactory_, _timeout_, NETASCII_EOL

Constructor Summary

TelnetClient()
Default TelnetClient constructor.

Method Summary

protected void	_connectAction_() Handles special connection requirements.
void	disconnect() Disconnects the telnet session, closing the input and output streams as well as the socket.
java.io.InputStream	getInputStream() Returns the telnet connection input stream.
java.io.OutputStream	getOutputStream() Returns the telnet connection output stream.

Methods inherited from class com.oroinc.net.SocketClient

connect, connect, connect, connect, connect, connect, getDefaultPort, getDefaultTimeout, getLocalAddress, getLocalPort, getRemoteAddress, getRemotePort, getSoLinger, getSoTimeout, getTcpNoDelay, isConnected, setDefaultPort, setDefaultTimeout, setSocketFactory, setSoLinger, setSoTimeout, setTcpNoDelay, verifyRemote

Methods inherited from class java.lang.Object

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

Constructor Detail

TelnetClient

public TelnetClient()

Default TelnetClient constructor.

Method Detail

_connectAction_

protected void _connectAction_()
                        throws java.io.IOException

Handles special connection requirements.

Overrides:

_connectAction_ in class com.oroinc.net.telnet.Telnet

Throws:

java.io.IOException - If an error occurs during connection setup.

disconnect

public void disconnect()
                throws java.io.IOException

Disconnects the telnet session, closing the input and output streams as well as the socket. If you have references to the input and output streams of the telnet connection, you should not close them yourself, but rather call disconnect to properly close the connection.

Overrides:

disconnect in class SocketClient

Following copied from class: com.oroinc.net.SocketClient

Throws:

java.io.IOException - If there is an error closing the socket.

getOutputStream

public java.io.OutputStream getOutputStream()

Returns the telnet connection output stream. You should not close the stream when you finish with it. Rather, you should call disconnect .

Returns:

The telnet connection output stream.

getInputStream

public java.io.InputStream getInputStream()

Returns the telnet connection input stream. You should not close the stream when you finish with it. Rather, you should call disconnect .

Returns:

The telnet connection input stream.