| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.io; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** Encapsulate a list of {@link IOException} into an {@link IOException} */ |
| public class MultipleIOException extends IOException { |
| /** Require by {@link java.io.Serializable} */ |
| private static final long serialVersionUID = 1L; |
| |
| private final List<IOException> exceptions; |
| |
| /** Constructor is private, use {@link #createIOException(List)}. */ |
| private MultipleIOException(List<IOException> exceptions) { |
| super(exceptions.size() + " exceptions " + exceptions); |
| this.exceptions = exceptions; |
| } |
| |
| /** @return the underlying exceptions */ |
| public List<IOException> getExceptions() {return exceptions;} |
| |
| /** A convenient method to create an {@link IOException}. */ |
| public static IOException createIOException(List<IOException> exceptions) { |
| if (exceptions == null || exceptions.isEmpty()) { |
| return null; |
| } |
| if (exceptions.size() == 1) { |
| return exceptions.get(0); |
| } |
| return new MultipleIOException(exceptions); |
| } |
| } |