InvalidInputException.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.mapreduce.lib.input;
- import java.io.IOException;
- import java.util.List;
- import java.util.Iterator;
- /**
- * 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.
- */
- public class InvalidInputException extends IOException {
- private static final long serialVersionUID = -380668190578456802L;
- 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();
- }
- }