1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.utils;
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14 import java.util.Collection;
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17 * GroupException is a Exception container for a set of exceptions.
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20 * Use {@link #group(Collection)} or {@link #group(Exception...)} to construct
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23 * @author Toni Kalajainen
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25 public class GroupException extends Exception {
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27 private static final long serialVersionUID = 1L;
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29 private final Throwable errors[];
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31 private GroupException(Throwable[] errors) {
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32 super(GroupException.getAsText(errors));
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33 this.errors = errors;
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36 public static Exception group(Exception... errors) {
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37 if (errors.length == 0)
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38 throw new IllegalArgumentException("zero exceptions for GroupException");
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39 if (errors.length == 1)
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41 return new GroupException(errors);
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44 public static Throwable group(Collection<? extends Throwable> collection) {
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45 if (collection.size() == 0)
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46 throw new IllegalArgumentException("zero exceptions for GroupException");
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47 if (collection.size() == 1)
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48 return collection.iterator().next();
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49 return new GroupException(collection.toArray(new Exception[collection.size()]));
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52 private static String getAsText(Throwable errors[]) {
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54 for (Throwable error : errors) {
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55 result += error.getClass().getName()+": "+error.getMessage() + "\n";
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60 public Throwable[] getErrors() {
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