| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2003 The Apache Software Foundation. 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 |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache |
| * XMLBeans", nor may "Apache" appear in their name, without prior |
| * written permission of the Apache Software Foundation. |
| * |
| * 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 APACHE SOFTWARE FOUNDATION 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 2000-2003 BEA Systems |
| * Inc., <http://www.bea.com/>. For more information on the Apache Software |
| * Foundation, please see <http://www.apache.org/>. |
| */ |
| |
| package weblogic.utils; |
| |
| /** |
| * The interface implemented by NestedException, NestedError, and |
| * NestedRuntimeException largely so Util can provide a standard |
| * implementation of toString() and printStackTrace() |
| * |
| * @deprecated use JDK 1.4 style nested throwables where possible. |
| * |
| * @author WebLogic |
| */ |
| |
| import java.io.PrintWriter; |
| import java.io.PrintStream; |
| import java.lang.reflect.InvocationTargetException; |
| |
| public interface NestedThrowable { |
| |
| /** Get the nested Throwable. */ |
| Throwable getNested(); |
| |
| /** Call super.toString(). [Kludge but necessary.] */ |
| String superToString(); |
| |
| /** Call super.printStackTrace(). [Kludge but necessary.] */ |
| void superPrintStackTrace(PrintStream ps); |
| |
| /** Call super.printStackTrace(). [Kludge but necessary.] */ |
| void superPrintStackTrace(PrintWriter po); |
| |
| static class Util { |
| |
| private static String EOL = System.getProperty("line.separator"); |
| |
| /** |
| * Prints the exception message and its nested exception message. |
| * |
| * @return String representation of the exception |
| */ |
| public static String toString(NestedThrowable nt) { |
| Throwable nested = nt.getNested(); |
| if (nested == null) { |
| return nt.superToString(); |
| } else { |
| return nt.superToString() + " - with nested exception:" + |
| EOL + "[" + nestedToString(nested) + "]"; |
| } |
| } |
| |
| private static String nestedToString(Throwable nested) { |
| if (nested instanceof InvocationTargetException) { |
| InvocationTargetException ite = (InvocationTargetException) nested; |
| return nested.toString() + " - with target exception:" + |
| EOL + "[" + ite.getTargetException().toString() + |
| "]"; |
| } |
| return nested.toString(); |
| } |
| |
| /** |
| * Prints the stack trace associated with this exception and |
| * its nested exception. |
| * |
| * @param s PrintStream |
| */ |
| public static void printStackTrace(NestedThrowable nt, PrintStream s) { |
| Throwable nested = nt.getNested(); |
| if (nested != null) { |
| nested.printStackTrace(s); |
| s.println("--------------- nested within: ------------------"); |
| } |
| nt.superPrintStackTrace(s); |
| } |
| |
| /** |
| * Prints the stack trace associated with this exception and |
| * its nested exception. |
| * |
| * @param w PrintWriter |
| */ |
| public static void printStackTrace(NestedThrowable nt, PrintWriter w) { |
| Throwable nested = nt.getNested(); |
| if (nested != null) { |
| nested.printStackTrace(w); |
| w.println("--------------- nested within: ------------------"); |
| } |
| nt.superPrintStackTrace(w); |
| } |
| } |
| |
| } |