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/*
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* Copyright (c) 1996, 2003, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.rmi.transport.proxy;
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import java.io.*;
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import java.net.InetAddress;
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import java.net.Socket;
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import java.net.SocketException;
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/**
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* The WrappedSocket class provides a general wrapper for providing an
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* extended implementation of java.net.Socket that can be attached to
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* a pre-existing Socket object. WrappedSocket itself provides a
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* constructor for specifying alternate input or output streams to be
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* returned than those of the underlying Socket.
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*/
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class WrappedSocket extends Socket {
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/** the underlying concrete socket */
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protected Socket socket;
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/** the input stream to return for socket */
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protected InputStream in = null;
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/** the output stream to return for socket */
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protected OutputStream out = null;
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/**
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* Layer on top of a pre-existing Socket object, and use specified
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* input and output streams. This allows the creator of the
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* underlying socket to peek at the beginning of the input with a
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* BufferedInputStream and determine which kind of socket
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* to create, without consuming the input.
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* @param socket the pre-existing socket to use
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* @param in the InputStream to return to users (can be null)
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* @param out the OutputStream to return to users (can be null)
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*/
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public WrappedSocket(Socket socket, InputStream in, OutputStream out)
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throws IOException
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{
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super((java.net.SocketImpl)null); // no underlying SocketImpl for this object
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this.socket = socket;
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this.in = in;
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this.out = out;
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}
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/**
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* Get the address to which the socket is connected.
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*/
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public InetAddress getInetAddress()
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{
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return socket.getInetAddress();
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}
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/**
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* Get the local address to which the socket is bound.
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*/
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public InetAddress getLocalAddress() {
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return socket.getLocalAddress();
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}
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/**
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* Get the remote port to which the socket is connected.
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*/
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public int getPort()
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{
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return socket.getPort();
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}
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/**
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* Get the local port to which the socket is connected.
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*/
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public int getLocalPort()
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{
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return socket.getLocalPort();
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}
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/**
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* Get an InputStream for this socket.
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*/
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public InputStream getInputStream() throws IOException
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{
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if (in == null)
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in = socket.getInputStream();
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return in;
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}
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/**
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* Get an OutputStream for this socket.
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*/
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public OutputStream getOutputStream() throws IOException
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{
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if (out == null)
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out = socket.getOutputStream();
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return out;
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}
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/**
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* Enable/disable TCP_NODELAY.
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*/
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public void setTcpNoDelay(boolean on) throws SocketException
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{
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socket.setTcpNoDelay(on);
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}
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/**
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* Retrieve whether TCP_NODELAY is enabled.
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*/
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public boolean getTcpNoDelay() throws SocketException
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{
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return socket.getTcpNoDelay();
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}
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/**
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* Enable/disable SO_LINGER with the specified linger time.
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*/
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public void setSoLinger(boolean on, int val) throws SocketException
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{
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socket.setSoLinger(on, val);
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}
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/**
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* Retrive setting for SO_LINGER.
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*/
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public int getSoLinger() throws SocketException
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{
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return socket.getSoLinger();
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}
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/**
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* Enable/disable SO_TIMEOUT with the specified timeout
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*/
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public synchronized void setSoTimeout(int timeout) throws SocketException
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{
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socket.setSoTimeout(timeout);
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}
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/**
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* Retrive setting for SO_TIMEOUT.
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*/
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public synchronized int getSoTimeout() throws SocketException
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{
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return socket.getSoTimeout();
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}
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/**
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* Close the socket.
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*/
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public synchronized void close() throws IOException
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{
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socket.close();
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}
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/**
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* Return string representation of the socket.
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*/
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public String toString()
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{
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return "Wrapped" + socket.toString();
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}
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}
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