| /* |
| * 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; |
| 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. |
| */ |
| 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 AccessController.doPrivileged( |
| new PrivilegedAction<InetAddress>() { |
| @Override |
| public InetAddress run() { |
| 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(); |
| } |
| } |