001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019 package org.apache.hadoop.mapreduce.lib.input; 020 021 import java.io.IOException; 022 023 import org.apache.hadoop.classification.InterfaceAudience; 024 import org.apache.hadoop.classification.InterfaceStability; 025 import org.apache.hadoop.io.Text; 026 import org.apache.hadoop.mapreduce.InputSplit; 027 import org.apache.hadoop.mapreduce.RecordReader; 028 import org.apache.hadoop.mapreduce.TaskAttemptContext; 029 030 /** 031 * This class is similar to SequenceFileInputFormat, except it generates 032 * SequenceFileAsTextRecordReader which converts the input keys and values 033 * to their String forms by calling toString() method. 034 */ 035 @InterfaceAudience.Public 036 @InterfaceStability.Stable 037 public class SequenceFileAsTextInputFormat 038 extends SequenceFileInputFormat<Text, Text> { 039 040 public SequenceFileAsTextInputFormat() { 041 super(); 042 } 043 044 public RecordReader<Text, Text> createRecordReader(InputSplit split, 045 TaskAttemptContext context) throws IOException { 046 context.setStatus(split.toString()); 047 return new SequenceFileAsTextRecordReader(); 048 } 049 }