org.apache.hadoop.streaming

Class AutoInputFormat

java.lang.Object

org.apache.hadoop.mapred.FileInputFormat

org.apache.hadoop.streaming.AutoInputFormat

All Implemented Interfaces:

InputFormat

public class AutoInputFormat
extends FileInputFormat

An InputFormat that tries to deduce the types of the input files automatically. It can currently handle text and sequence files.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapred.FileInputFormat

FileInputFormat.Counter

Field Summary

Fields inherited from class org.apache.hadoop.mapred.FileInputFormat

INPUT_DIR_RECURSIVE, LOG, NUM_INPUT_FILES

Constructor Summary

Constructors

Constructor and Description
AutoInputFormat()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(JobConf job)
RecordReader	getRecordReader(InputSplit split, JobConf job, Reporter reporter) Get the RecordReader for the given InputSplit.

Methods inherited from class org.apache.hadoop.mapred.FileInputFormat

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplitHosts, getSplits, isSplitable, listStatus, makeSplit, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AutoInputFormat

public AutoInputFormat()

Method Detail

configure

public void configure(JobConf job)

getRecordReader

public RecordReader getRecordReader(InputSplit split,
                           JobConf job,
                           Reporter reporter)
                             throws IOException

Description copied from interface: InputFormat

Get the RecordReader for the given InputSplit.

It is the responsibility of the RecordReader to respect record boundaries while processing the logical split to present a record-oriented view to the individual task.

Specified by:

getRecordReader in interface InputFormat

Specified by:

getRecordReader in class FileInputFormat

Parameters:

split - the InputSplit

job - the job that this split belongs to

Returns:

a RecordReader

Throws:

IOException