Mercurial > hg > blitz_stable
view src/com/go/trove/net/FilteredSocket.java @ 28:bc579f24eaf5
Added tag Version 2.1 for changeset 511648fa4d64
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Mon, 04 Jan 2010 13:01:11 +0000 |
parents | 3dc0c5604566 |
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/* ==================================================================== * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group * ==================================================================== * The Tea Software License, Version 1.1 * * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by the * Walt Disney Internet Group (http://opensource.go.com/)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must * not be used to endorse or promote products derived from this * software without prior written permission. For written * permission, please contact opensource@dig.com. * * 5. Products derived from this software may not be called "Tea", * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet", * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior * written permission of the Walt Disney Internet Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * For more information about Tea, please see http://opensource.go.com/. */ package com.go.trove.net; import java.net.*; import java.io.*; /****************************************************************************** * A Socket wrapper that passes all calls to an internal Socket. This class is * designed for subclasses to override or hook into the behavior of a Socket * instance. * * @author Brian S O'Neill * @version * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 00/12/05 <!-- $--> */ public class FilteredSocket extends Socket { protected final Socket mSocket; public FilteredSocket(Socket socket) throws SocketException { super(new Impl(socket)); mSocket = socket; } // Implementation note: Java's socket API could use some improvement. // For example, java.net.Socket should be an interface. This would avoid // needing the ugly SocketImpl class provided instead. private static class Impl extends SocketImpl { private Socket mSocket; public Impl(Socket socket) { if (socket == null) { throw new IllegalArgumentException("Socket is null"); } mSocket = socket; } public void setOption(int optId, Object value) throws SocketException { switch (optId) { case TCP_NODELAY: mSocket.setTcpNoDelay(((Boolean)value).booleanValue()); return; case SO_LINGER: if (value instanceof Boolean) { mSocket.setSoLinger(((Boolean)value).booleanValue(), 0); } else { mSocket.setSoLinger(true, ((Integer)value).intValue()); } return; case SO_TIMEOUT: mSocket.setSoTimeout(((Integer)value).intValue()); return; case SO_SNDBUF: mSocket.setSendBufferSize(((Integer)value).intValue()); return; case SO_RCVBUF: mSocket.setReceiveBufferSize(((Integer)value).intValue()); return; case SO_BINDADDR: case SO_REUSEADDR: case IP_MULTICAST_IF: default: throw new SocketException("Invalid option: " + optId); } } public Object getOption(int optId) throws SocketException { switch (optId) { case TCP_NODELAY: return mSocket.getTcpNoDelay() ? Boolean.TRUE : Boolean.FALSE; case SO_BINDADDR: return mSocket.getLocalAddress(); case SO_LINGER: return new Integer(mSocket.getSoLinger()); case SO_TIMEOUT: return new Integer(mSocket.getSoTimeout()); case SO_SNDBUF: return new Integer(mSocket.getSendBufferSize()); case SO_RCVBUF: return new Integer(mSocket.getReceiveBufferSize()); case SO_REUSEADDR: case IP_MULTICAST_IF: default: throw new SocketException("Invalid option: " + optId); } } protected void create(boolean stream) throws IOException { error(); } protected void connect(String host, int port) throws IOException { error(); } protected void connect(InetAddress host, int port) throws IOException { error(); } protected void connect(SocketAddress host, int port) throws IOException { error(); } protected void bind(InetAddress host, int port) throws IOException { error(); } protected void listen(int backlog) throws IOException { error(); } protected void accept(SocketImpl s) throws IOException { error(); } protected InputStream getInputStream() throws IOException { return mSocket.getInputStream(); } protected OutputStream getOutputStream() throws IOException { return mSocket.getOutputStream(); } protected int available() throws IOException { return getInputStream().available(); } protected void close() throws IOException { mSocket.close(); } protected InetAddress getInetAddress() { return mSocket.getInetAddress(); } protected int getPort() { return mSocket.getPort(); } protected int getLocalPort() { return mSocket.getLocalPort(); } private void error() throws IOException { throw new IOException("Socket already connected"); } protected void sendUrgentData(int aByte) throws IOException { throw new UnsupportedOperationException(); } } }