sun.net
Class NetworkClient

java.lang.Object
  sun.net.NetworkClient

Direct Known Subclasses:

HttpClient, TransferProtocolClient

public class NetworkClient
extends Object

This is the base class for network clients.

Field Summary

protected static int	defaultConnectTimeout
protected static int	defaultSoTimeout
protected static String	encoding
InputStream	serverInput Buffered stream for reading replies from server.
PrintStream	serverOutput Stream for printing to the server.
protected Socket	serverSocket Socket for communicating with server.

Constructor Summary

NetworkClient()

NetworkClient(String host, int port)
Create connection with host host on port port

Method Summary

void	closeServer() Close an open connection to the server.
protected Socket	doConnect(String server, int port) Return a socket connected to the server, with any appropriate options pre-established
protected InetAddress	getLocalAddress()
void	openServer(String server, int port) Open a connection to the server.
boolean	serverIsOpen() Return server connection status

Methods inherited from class java.lang.Object

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

Field Detail

serverSocket

protected Socket serverSocket

Socket for communicating with server.

serverOutput

public PrintStream serverOutput

Stream for printing to the server.

serverInput

public InputStream serverInput

Buffered stream for reading replies from server.

defaultSoTimeout

protected static int defaultSoTimeout

defaultConnectTimeout

protected static int defaultConnectTimeout

encoding

protected static String encoding

Constructor Detail

NetworkClient

public NetworkClient(String host,
                     int port)
              throws IOException

Create connection with host host on port port

Throws:

IOException

NetworkClient

public NetworkClient()

Method Detail

openServer

public void openServer(String server,
                       int port)
                throws IOException,
                       UnknownHostException

Open a connection to the server.

Throws:

IOException

UnknownHostException

doConnect

protected Socket doConnect(String server,
                           int port)
                    throws IOException,
                           UnknownHostException

Return a socket connected to the server, with any appropriate options pre-established

Throws:

IOException

UnknownHostException

getLocalAddress

protected InetAddress getLocalAddress()
                               throws IOException

Throws:

IOException

closeServer

public void closeServer()
                 throws IOException

Close an open connection to the server.

Throws:

IOException

serverIsOpen

public boolean serverIsOpen()

Return server connection status