/* * Copyright (c) 1996, 2003, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.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();    }}