Package org.apache.hadoop.io.erasurecode

Class ECChunk

java.lang.Object

org.apache.hadoop.io.erasurecode.ECChunk

@Private
public class ECChunk
extends Object

A wrapper for ByteBuffer or bytes array for an erasure code chunk.

Constructor Summary

Constructors

Constructor	Description
ECChunk(byte[] buffer)	Wrapping a bytes array
ECChunk(byte[] buffer, int offset, int len)
ECChunk(ByteBuffer buffer)	Wrapping a ByteBuffer
ECChunk(ByteBuffer buffer, int offset, int len)

Method Summary

Modifier and Type	Method	Description
ByteBuffer	getBuffer()	Convert to ByteBuffer
boolean	isAllZero()
void	setAllZero(boolean allZero)
static ByteBuffer[]	toBuffers(ECChunk[] chunks)	Convert an array of this chunks to an array of ByteBuffers
byte[]	toBytesArray()	Convert to a bytes array, just for test usage.

Methods inherited from class java.lang.Object

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

Constructor Details

ECChunk

public ECChunk(ByteBuffer buffer)

Wrapping a ByteBuffer

Parameters:

buffer - buffer to be wrapped by the chunk

ECChunk

public ECChunk(ByteBuffer buffer,
 int offset,
 int len)

ECChunk

public ECChunk(byte[] buffer)

Wrapping a bytes array

Parameters:

buffer - buffer to be wrapped by the chunk

ECChunk

public ECChunk(byte[] buffer,
 int offset,
 int len)

Method Details

isAllZero

public boolean isAllZero()

setAllZero

public void setAllZero(boolean allZero)

getBuffer

public ByteBuffer getBuffer()

Convert to ByteBuffer

Returns:

ByteBuffer

toBuffers

public static ByteBuffer[] toBuffers(ECChunk[] chunks)

Convert an array of this chunks to an array of ByteBuffers

Parameters:

chunks - chunks to convert into buffers

Returns:

an array of ByteBuffers

toBytesArray

public byte[] toBytesArray()

Convert to a bytes array, just for test usage.

Returns:

bytes array