org.apache.avro.mapred

Class AvroInputFormat<T>

java.lang.Object

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

org.apache.avro.mapred.AvroInputFormat<T>

All Implemented Interfaces:

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

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

An InputFormat for Avro data files. By default, when pointed at a directory, this will silently skip over any files in it that do not have .avro extension. To instead include all files, set the avro.mapred.ignore.inputs.without.extension property to false.

Nested Class Summary

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

org.apache.hadoop.mapred.FileInputFormat.Counter

Field Summary

Fields

Modifier and Type	Field and Description
static String	IGNORE_FILES_WITHOUT_EXTENSION_KEY Whether to silently ignore input files without the .avro extension
static boolean	IGNORE_INPUTS_WITHOUT_EXTENSION_DEFAULT Default of whether to silently ignore input files without the .avro extension.

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

INPUT_DIR_NONRECURSIVE_IGNORE_SUBDIRS, INPUT_DIR_RECURSIVE, LOG, NUM_INPUT_FILES

Constructor Summary

Constructors

Constructor and Description
AvroInputFormat()

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 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, isSplitable, makeSplit, makeSplit, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize

Methods inherited from class java.lang.Object

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

Field Detail

IGNORE_FILES_WITHOUT_EXTENSION_KEY

public static final String IGNORE_FILES_WITHOUT_EXTENSION_KEY

Whether to silently ignore input files without the .avro extension

See Also:

Constant Field Values

IGNORE_INPUTS_WITHOUT_EXTENSION_DEFAULT

public static final boolean IGNORE_INPUTS_WITHOUT_EXTENSION_DEFAULT

Default of whether to silently ignore input files without the .avro extension.

See Also:

Constant Field Values

Constructor Detail

AvroInputFormat

public AvroInputFormat()

Method Detail

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