Mercurial > hg > blitz_stable
diff src/com/go/trove/net/CheckedSocketException.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/com/go/trove/net/CheckedSocketException.java Sat Mar 21 11:00:06 2009 +0000 @@ -0,0 +1,143 @@ +/* ==================================================================== + * 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.io.*; +import java.net.*; +import java.lang.ref.*; + +/****************************************************************************** + * A SocketException that prints out additional detail in the message: address + * and port of the socket. + * + * @author Brian S O'Neill + * @version + * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/01/22 <!-- $--> + */ +public class CheckedSocketException extends SocketException { + static CheckedSocketException create + (Exception cause, Socket source) { + if (cause instanceof CheckedSocketException) { + return (CheckedSocketException)cause; + } + else { + return new CheckedSocketException(cause, source); + } + } + + static CheckedSocketException create + (Exception cause, Socket source, String message) { + if (cause instanceof CheckedSocketException) { + return (CheckedSocketException)cause; + } + else { + return new CheckedSocketException(cause, source, message); + } + } + + static String createMessagePrefix(Socket source) { + return + "[" + source.getLocalAddress().getHostAddress() + + ':' + source.getLocalPort() + + ',' + source.getInetAddress().getHostAddress() + + ':' + source.getPort() + ']'; + } + + private Exception mCause; + private String mMessagePrefix; + private Reference mSource; + + private CheckedSocketException(Exception cause, Socket source) { + this(cause, source, cause.getMessage()); + } + + private CheckedSocketException(Exception cause, Socket source, + String message) { + super(createMessagePrefix(source) + ' ' + message); + mCause = cause; + mMessagePrefix = createMessagePrefix(source); + mSource = new WeakReference(source); + } + + public Throwable getCause() { + return mCause; + } + + /** + * Returns null if source socket has been reclaimed by the garbage + * collector. + */ + public Socket getSource() { + return (Socket)mSource.get(); + } + + public void printStackTrace() { + printStackTrace(System.err); + } + + public void printStackTrace(PrintStream ps) { + synchronized (ps) { + ps.print(mMessagePrefix); + ps.print(": "); + mCause.printStackTrace(ps); + } + } + + public void printStackTrace(PrintWriter pw) { + synchronized (pw) { + pw.print(mMessagePrefix); + pw.print(": "); + mCause.printStackTrace(pw); + } + } +}