--- /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);
+        }
+    }
+}