org.apache.trevni.avro

Class AvroTrevniInputFormat<T>

java.lang.Object

org.apache.hadoop.mapred.FileInputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

org.apache.trevni.avro.AvroTrevniInputFormat<T>

All Implemented Interfaces:

org.apache.hadoop.mapred.InputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

public class AvroTrevniInputFormat<T>
extends org.apache.hadoop.mapred.FileInputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

An InputFormat for Trevni files.

A subset schema to be read may be specified with AvroJob.setInputSchema(JobConf,Schema).

Nested Class Summary

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

org.apache.hadoop.mapred.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
AvroTrevniInputFormat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapred.RecordReader<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>	getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.mapred.Reporter reporter)
protected boolean	isSplitable(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path filename)
protected org.apache.hadoop.fs.FileStatus[]	listStatus(org.apache.hadoop.mapred.JobConf job)

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

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplitHosts, getSplits, makeSplit, 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

AvroTrevniInputFormat

public AvroTrevniInputFormat()

Method Detail

isSplitable

protected boolean isSplitable(org.apache.hadoop.fs.FileSystem fs,
                              org.apache.hadoop.fs.Path filename)

Overrides:

isSplitable in class org.apache.hadoop.mapred.FileInputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

listStatus

protected org.apache.hadoop.fs.FileStatus[] listStatus(org.apache.hadoop.mapred.JobConf job)
                                                throws IOException

Overrides:

listStatus in class org.apache.hadoop.mapred.FileInputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

Throws:

IOException

getRecordReader

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

Specified by:

getRecordReader in interface org.apache.hadoop.mapred.InputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

Specified by:

getRecordReader in class org.apache.hadoop.mapred.FileInputFormat<AvroWrapper<T>,org.apache.hadoop.io.NullWritable>

Throws:

IOException