| /** |
| * 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 org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.hadoop.mapreduce.RecordReader; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| |
| /** |
| * Input format that is a <code>CombineFileInputFormat</code>-equivalent for |
| * <code>TextInputFormat</code>. |
| * |
| * @see CombineFileInputFormat |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class CombineTextInputFormat |
| extends CombineFileInputFormat<LongWritable,Text> { |
| public RecordReader<LongWritable,Text> createRecordReader(InputSplit split, |
| TaskAttemptContext context) throws IOException { |
| return new CombineFileRecordReader<LongWritable,Text>( |
| (CombineFileSplit)split, context, TextRecordReaderWrapper.class); |
| } |
| |
| /** |
| * A record reader that may be passed to <code>CombineFileRecordReader</code> |
| * so that it can be used in a <code>CombineFileInputFormat</code>-equivalent |
| * for <code>TextInputFormat</code>. |
| * |
| * @see CombineFileRecordReader |
| * @see CombineFileInputFormat |
| * @see TextInputFormat |
| */ |
| private static class TextRecordReaderWrapper |
| extends CombineFileRecordReaderWrapper<LongWritable,Text> { |
| // this constructor signature is required by CombineFileRecordReader |
| public TextRecordReaderWrapper(CombineFileSplit split, |
| TaskAttemptContext context, Integer idx) |
| throws IOException, InterruptedException { |
| super(new TextInputFormat(), split, context, idx); |
| } |
| } |
| } |