| /******************************************************************************* |
| * Copyright (c) 2003, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.common.internal.emf.utilities; |
| |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.wst.common.frameworks.internal.enablement.nonui.IWFTWrappedException; |
| |
| |
| |
| /** |
| * Utility class to factor common code for implementers of IArchiveWrappedException |
| */ |
| public class ExceptionHelper { |
| |
| /** |
| * Utility class; cannot be instantiated |
| */ |
| private ExceptionHelper() { |
| super(); |
| } |
| |
| /** |
| * Return the messages from |
| * |
| * @exception and |
| * all nested exceptions, in order from outermost to innermost |
| */ |
| public static java.lang.String[] getAllMessages(IWFTWrappedException exception) { |
| List messages = new ArrayList(4); |
| messages.add(exception.getMessage()); |
| Exception nested = exception.getNestedException(); |
| while (nested != null) { |
| messages.add(nested.getMessage()); |
| if (nested instanceof IWFTWrappedException) |
| nested = ((IWFTWrappedException) nested).getNestedException(); |
| else |
| nested = null; |
| } |
| return (String[]) messages.toArray(new String[messages.size()]); |
| } |
| |
| /** |
| * Return the messages from |
| * |
| * @exception and |
| * all nested exceptions, in order from outermost to innermost, concatenated as |
| * one |
| */ |
| public static String getConcatenatedMessages(IWFTWrappedException exception) { |
| String[] messages = getAllMessages(exception); |
| StringBuffer sb = new StringBuffer(256); |
| for (int i = 0; i < messages.length; i++) { |
| sb.append(messages[i]); |
| if (i < messages.length - 1) |
| sb.append('\n'); |
| } |
| return sb.toString(); |
| } |
| } |