--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/util/FilterException.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,133 @@
+/* ====================================================================
+ * TeaServlet - Copyright (c) 1999-2000 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.util;
+
+import java.io.PrintStream;
+import java.io.PrintWriter;
+
+/**
+ * Applies the filter pattern to Exceptions.
+ *
+ * @author Scott Jappinen
+ * @version <!--$$Revision: 1.1 $-->-<!--$$JustDate:--> 01/03/23 <!-- $-->
+ */
+public class FilterException extends Exception {
+
+    private Throwable mRootCause;
+    
+    public FilterException() {
+        super();
+		mRootCause = null;
+    }
+    
+    public FilterException(String message) {
+        super(message);
+		mRootCause = null;
+    }
+    
+    protected FilterException(Throwable rootCause) {
+        super(rootCause.getMessage());
+        mRootCause = rootCause;
+    }
+
+    protected FilterException(String message, Throwable rootCause) {
+        super(message);
+        mRootCause = rootCause;
+    }
+    
+    public String getMessage() {
+        String result;
+        if (mRootCause != null) {
+            String msg = super.getMessage();
+            if (msg != null) {
+                result = super.getMessage() + ": " + mRootCause.getMessage();
+            } else {
+                result = mRootCause.getMessage();
+            }
+        } else {
+            result = super.getMessage();
+        }
+        return result;
+    }
+    
+    public void printStackTrace() {
+        if (mRootCause != null) {
+            System.err.println("Root cause: ");
+            mRootCause.printStackTrace();
+        } else {
+            super.printStackTrace();			
+        }
+    }
+    
+    public void printStackTrace(PrintStream stream) {
+        if (mRootCause != null) {
+            stream.print("Root cause: ");
+            mRootCause.printStackTrace(stream);
+        } else {
+            super.printStackTrace(stream);
+        }
+    }
+    
+    public void printStackTrace(PrintWriter writer) {
+        if (mRootCause != null) {
+            writer.print("Root cause: ");
+            mRootCause.printStackTrace(writer);
+        } else {
+            super.printStackTrace(writer);
+        }
+    }
+    
+    public Throwable getRootCause() {
+        return mRootCause;
+    }	
+}
+