org.apache.nutch.tools.arc
Class ArcInputFormat

java.lang.Object
  org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>
      org.apache.nutch.tools.arc.ArcInputFormat

All Implemented Interfaces:

org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

public class ArcInputFormat
extends org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

A input format the reads arc files.

Field Summary

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

LOG

Constructor Summary

ArcInputFormat()

Method Summary

org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.mapred.Reporter reporter) Returns the RecordReader for reading the arc file.

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

addInputPath, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplits, isSplitable, listPaths, listStatus, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize, validateInput

Methods inherited from class java.lang.Object

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

Constructor Detail

ArcInputFormat

public ArcInputFormat()

Method Detail

getRecordReader

public org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable> getRecordReader(org.apache.hadoop.mapred.InputSplit split,
                                                                                                                           org.apache.hadoop.mapred.JobConf job,
                                                                                                                           org.apache.hadoop.mapred.Reporter reporter)
                                                                                                                    throws IOException

Returns the RecordReader for reading the arc file.

Specified by:

getRecordReader in interface org.apache.hadoop.mapred.InputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

Specified by:

getRecordReader in class org.apache.hadoop.mapred.FileInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

Parameters:

split - The InputSplit of the arc file to process.

job - The job configuration.

reporter - The progress reporter.

Throws:

IOException