org.kepler.hadoop.io.input

Class TokenInputSplit

java.lang.Object

org.apache.hadoop.mapreduce.InputSplit

org.kepler.hadoop.io.input.TokenInputSplit

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class TokenInputSplit
extends org.apache.hadoop.mapreduce.InputSplit
implements org.apache.hadoop.io.Writable

Hadoop InputSplit for Ptolemy tokens.

Author:

Daniel Crawl

Constructor Summary

Constructors

Constructor and Description
TokenInputSplit() No argument constructor is required.
TokenInputSplit(Token token) Create a TokenInputSplit for a token.

Method Summary

Modifier and Type	Method and Description
long	getLength() Get the number of bytes in the split.
java.lang.String[]	getLocations() Get the host locations of the split.
TokenWritable	getTokenWritable() Get a Writable for this split.
void	readFields(java.io.DataInput in) Unserialize the fields for this split.
void	write(java.io.DataOutput out) Serialize the fields in this split.

Methods inherited from class java.lang.Object

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

Constructor Detail

TokenInputSplit

public TokenInputSplit()

No argument constructor is required.

TokenInputSplit

public TokenInputSplit(Token token)

Create a TokenInputSplit for a token.

Method Detail

getLength

public long getLength()
               throws java.io.IOException,
                      java.lang.InterruptedException

Get the number of bytes in the split.

Specified by:

getLength in class org.apache.hadoop.mapreduce.InputSplit

Throws:

java.io.IOException

java.lang.InterruptedException

getLocations

public java.lang.String[] getLocations()
                                throws java.io.IOException,
                                       java.lang.InterruptedException

Get the host locations of the split. In this class, returns none.

Specified by:

getLocations in class org.apache.hadoop.mapreduce.InputSplit

Throws:

java.io.IOException

java.lang.InterruptedException

getTokenWritable

public TokenWritable getTokenWritable()

Get a Writable for this split.

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Unserialize the fields for this split.

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Serialize the fields in this split.

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException