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/*
* Copyright 1996-2003 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.rmi.transport.proxy;
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
/**
* 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 */
protected Socket socket;
/** the input stream to return for socket */
protected InputStream in = null;
/** 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.
* @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.
*/
public InetAddress getInetAddress()
{
return socket.getInetAddress();
}
/**
* Get the local address to which the socket is bound.
*/
public InetAddress getLocalAddress() {
return socket.getLocalAddress();
}
/**
* 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.
*/
public int getLocalPort()
{
return socket.getLocalPort();
}
/**
* 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.
*/
public OutputStream getOutputStream() throws IOException
{
if (out == null)
out = socket.getOutputStream();
return out;
}
/**
* Enable/disable TCP_NODELAY.
*/
public void setTcpNoDelay(boolean on) throws SocketException
{
socket.setTcpNoDelay(on);
}
/**
* Retrieve whether TCP_NODELAY is enabled.
*/
public boolean getTcpNoDelay() throws SocketException
{
return socket.getTcpNoDelay();
}
/**
* 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.
*/
public int getSoLinger() throws SocketException
{
return socket.getSoLinger();
}
/**
* Enable/disable SO_TIMEOUT with the specified timeout
*/
public synchronized void setSoTimeout(int timeout) throws SocketException
{
socket.setSoTimeout(timeout);
}
/**
* Retrive setting for SO_TIMEOUT.
*/
public synchronized int getSoTimeout() throws SocketException
{
return socket.getSoTimeout();
}
/**
* Close the socket.
*/
public synchronized void close() throws IOException
{
socket.close();
}
/**
* Return string representation of the socket.
*/
public String toString()
{
return "Wrapped" + socket.toString();
}
}
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