MultipleIOException.java
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上传日期:2018-01-08
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文件大小:2k
- /**
- * 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);
- }
- }