| /** |
| * 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.mapred; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Iterator; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| /** |
| * This class wraps a list of problems with the input, so that the user |
| * can get a list of problems together instead of finding and fixing them one |
| * by one. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class InvalidInputException extends IOException { |
| |
| private static final long serialVersionUID = 1L; |
| private List<IOException> problems; |
| |
| /** |
| * Create the exception with the given list. |
| * @param probs the list of problems to report. this list is not copied. |
| */ |
| public InvalidInputException(List<IOException> probs) { |
| problems = probs; |
| } |
| |
| /** |
| * Get the complete list of the problems reported. |
| * @return the list of problems, which must not be modified |
| */ |
| public List<IOException> getProblems() { |
| return problems; |
| } |
| |
| /** |
| * Get a summary message of the problems found. |
| * @return the concatenated messages from all of the problems. |
| */ |
| public String getMessage() { |
| StringBuffer result = new StringBuffer(); |
| Iterator<IOException> itr = problems.iterator(); |
| while(itr.hasNext()) { |
| result.append(itr.next().getMessage()); |
| if (itr.hasNext()) { |
| result.append("\n"); |
| } |
| } |
| return result.toString(); |
| } |
| } |