org.apache.accumulo.examples.simple.filedata

Class ChunkInputStream

java.lang.Object

java.io.InputStream

org.apache.accumulo.examples.simple.filedata.ChunkInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class ChunkInputStream
extends InputStream

An input stream that reads file data stored in one or more Accumulo values. Used by ChunkInputFormat to present input streams to a mapper.

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	buf
protected int	count
protected int	currentChunk
protected int	currentChunkSize
protected Key	currentKey
protected Set<org.apache.hadoop.io.Text>	currentVis
protected boolean	gotEndMarker
protected int	pos
protected PeekingIterator<Map.Entry<Key,Value>>	source

Constructor Summary

Constructors

Constructor and Description
ChunkInputStream()
ChunkInputStream(PeekingIterator<Map.Entry<Key,Value>> in)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
void	close()
Set<org.apache.hadoop.io.Text>	getVisibilities()
int	read()
int	read(byte[] b, int off, int len)
void	setSource(PeekingIterator<Map.Entry<Key,Value>> in)

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

source

protected PeekingIterator<Map.Entry<Key,Value>> source

currentKey

protected Key currentKey

currentVis

protected Set<org.apache.hadoop.io.Text> currentVis

currentChunk

protected int currentChunk

currentChunkSize

protected int currentChunkSize

gotEndMarker

protected boolean gotEndMarker

buf

protected byte[] buf

count

protected int count

pos

protected int pos

Constructor Detail

ChunkInputStream

public ChunkInputStream()

ChunkInputStream

public ChunkInputStream(PeekingIterator<Map.Entry<Key,Value>> in)
                 throws IOException

Throws:

IOException

Method Detail

setSource

public void setSource(PeekingIterator<Map.Entry<Key,Value>> in)
               throws IOException

Throws:

IOException

getVisibilities

public Set<org.apache.hadoop.io.Text> getVisibilities()

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b,
       int off,
       int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

clear

public void clear()

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException