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package sun.rmi.transport.proxy;

import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.security.AccessController;
import java.security.PrivilegedAction;

The WrappedSocket class provides a general wrapper for providing an extended implementation of java.net.Socket that can be attached to a pre-existing Socket object. WrappedSocket itself provides a constructor for specifying alternate input or output streams to be returned than those of the underlying Socket.
/** * The WrappedSocket class provides a general wrapper for providing an * extended implementation of java.net.Socket that can be attached to * a pre-existing Socket object. WrappedSocket itself provides a * constructor for specifying alternate input or output streams to be * returned than those of the underlying Socket. */
class WrappedSocket extends Socket {
the underlying concrete socket
/** the underlying concrete socket */
protected Socket socket;
the input stream to return for socket
/** the input stream to return for socket */
protected InputStream in = null;
the output stream to return for socket
/** the output stream to return for socket */
protected OutputStream out = null;
Layer on top of a pre-existing Socket object, and use specified input and output streams. This allows the creator of the underlying socket to peek at the beginning of the input with a BufferedInputStream and determine which kind of socket to create, without consuming the input.
Params:
  • socket – the pre-existing socket to use
  • in – the InputStream to return to users (can be null)
  • out – the OutputStream to return to users (can be null)
/** * Layer on top of a pre-existing Socket object, and use specified * input and output streams. This allows the creator of the * underlying socket to peek at the beginning of the input with a * BufferedInputStream and determine which kind of socket * to create, without consuming the input. * @param socket the pre-existing socket to use * @param in the InputStream to return to users (can be null) * @param out the OutputStream to return to users (can be null) */
public WrappedSocket(Socket socket, InputStream in, OutputStream out) throws IOException { super((java.net.SocketImpl)null); // no underlying SocketImpl for this object this.socket = socket; this.in = in; this.out = out; }
Get the address to which the socket is connected.
/** * Get the address to which the socket is connected. */
public InetAddress getInetAddress() { return socket.getInetAddress(); }
Get the local address to which the socket is bound.
/** * Get the local address to which the socket is bound. */
public InetAddress getLocalAddress() { return AccessController.doPrivileged( new PrivilegedAction<InetAddress>() { public InetAddress run() { return socket.getLocalAddress(); } }); }
Get the remote port to which the socket is connected.
/** * Get the remote port to which the socket is connected. */
public int getPort() { return socket.getPort(); }
Get the local port to which the socket is connected.
/** * Get the local port to which the socket is connected. */
public int getLocalPort() { return socket.getLocalPort(); }
Get an InputStream for this socket.
/** * Get an InputStream for this socket. */
public InputStream getInputStream() throws IOException { if (in == null) in = socket.getInputStream(); return in; }
Get an OutputStream for this socket.
/** * Get an OutputStream for this socket. */
public OutputStream getOutputStream() throws IOException { if (out == null) out = socket.getOutputStream(); return out; }
Enable/disable TCP_NODELAY.
/** * Enable/disable TCP_NODELAY. */
public void setTcpNoDelay(boolean on) throws SocketException { socket.setTcpNoDelay(on); }
Retrieve whether TCP_NODELAY is enabled.
/** * Retrieve whether TCP_NODELAY is enabled. */
public boolean getTcpNoDelay() throws SocketException { return socket.getTcpNoDelay(); }
Enable/disable SO_LINGER with the specified linger time.
/** * Enable/disable SO_LINGER with the specified linger time. */
public void setSoLinger(boolean on, int val) throws SocketException { socket.setSoLinger(on, val); }
Retrive setting for SO_LINGER.
/** * Retrive setting for SO_LINGER. */
public int getSoLinger() throws SocketException { return socket.getSoLinger(); }
Enable/disable SO_TIMEOUT with the specified timeout
/** * Enable/disable SO_TIMEOUT with the specified timeout */
public synchronized void setSoTimeout(int timeout) throws SocketException { socket.setSoTimeout(timeout); }
Retrive setting for SO_TIMEOUT.
/** * Retrive setting for SO_TIMEOUT. */
public synchronized int getSoTimeout() throws SocketException { return socket.getSoTimeout(); }
Close the socket.
/** * Close the socket. */
public synchronized void close() throws IOException { socket.close(); }
Return string representation of the socket.
/** * Return string representation of the socket. */
public String toString() { return "Wrapped" + socket.toString(); } }