pegasus.mapreduce.common.io

Class ComputationInputFormat

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<K,V>

org.apache.hadoop.mapreduce.lib.input.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

pegasus.mapreduce.common.io.ComputationInputFormat

public class ComputationInputFormat
extends org.apache.hadoop.mapreduce.lib.input.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

org.apache.hadoop.mapreduce.lib.input.FileInputFormat.Counter

Field Summary

Fields inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

DEFAULT_LIST_STATUS_NUM_THREADS, INPUT_DIR, INPUT_DIR_RECURSIVE, LIST_STATUS_NUM_THREADS, NUM_INPUT_FILES, PATHFILTER_CLASS, SPLIT_MAXSIZE, SPLIT_MINSIZE

Constructor Summary

Constructors

Constructor and Description
ComputationInputFormat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>	createRecordReader(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context)
java.util.List<org.apache.hadoop.mapreduce.InputSplit>	getSplits(org.apache.hadoop.mapreduce.JobContext job)
protected boolean	isSplitable(org.apache.hadoop.mapreduce.JobContext context, org.apache.hadoop.fs.Path filename)

Methods inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getFormatMinSplitSize, getInputDirRecursive, getInputPathFilter, getInputPaths, getMaxSplitSize, getMinSplitSize, listStatus, makeSplit, makeSplit, setInputDirRecursive, setInputPathFilter, setInputPaths, setInputPaths, setMaxInputSplitSize, setMinInputSplitSize

Methods inherited from class java.lang.Object

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

Constructor Detail

ComputationInputFormat

public ComputationInputFormat()

Method Detail

isSplitable

protected boolean isSplitable(org.apache.hadoop.mapreduce.JobContext context,
                              org.apache.hadoop.fs.Path filename)

Overrides:

isSplitable in class org.apache.hadoop.mapreduce.lib.input.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

getSplits

public java.util.List<org.apache.hadoop.mapreduce.InputSplit> getSplits(org.apache.hadoop.mapreduce.JobContext job)
                                                                 throws java.io.IOException

Overrides:

getSplits in class org.apache.hadoop.mapreduce.lib.input.FileInputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

java.io.IOException

createRecordReader

public org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable> createRecordReader(org.apache.hadoop.mapreduce.InputSplit split,
                                                                                                                                        org.apache.hadoop.mapreduce.TaskAttemptContext context)
                                                                                                                                 throws java.io.IOException,
                                                                                                                                        java.lang.InterruptedException

Specified by:

createRecordReader in class org.apache.hadoop.mapreduce.InputFormat<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

java.io.IOException

java.lang.InterruptedException