Class BufferOverInputStream.ByteArrayChannel

java.lang.Object

org.aksw.commons.io.hadoop.binseach.bz2.ReadableByteChannelBase

org.aksw.commons.io.hadoop.binseach.bz2.BufferOverInputStream.ByteArrayChannel

All Implemented Interfaces:

Closeable, AutoCloseable, ByteChannel, Channel, ReadableByteChannel, SeekableByteChannel, WritableByteChannel, Seekable

Enclosing class:

BufferOverInputStream

public class BufferOverInputStream.ByteArrayChannel
extends ReadableByteChannelBase
implements SeekableByteChannel, Seekable

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected BufferOverInputStream.BucketPointer	pointer
protected long	pos

Fields inherited from class ReadableByteChannelBase

isOpen, maxReadSize

Constructor Summary

Constructors

Constructor	Description
ByteArrayChannel(long pos, BufferOverInputStream.BucketPointer pointer)

Method Summary

Modifier and Type	Method	Description
int	checkNext(int len, boolean changePos)
int	checkPrev(int len, boolean changePos)	The method assumes that the current position is in the valid range
Seekable	clone()
byte	get()
long	getPos()
boolean	isPosAfterEnd()
boolean	isPosBeforeStart()
long	loadAll()	Loads all data into the buffer and returns the total size
long	position()
BufferOverInputStream.ByteArrayChannel	position(long pos)	Setting a position outside of the size of the entity is valid will will cause a read to immediately return an EOF See ReadableByteChannel
void	posToEnd()	Set the position to the end of the stream immediately loads all data.
void	posToStart()
int	readActual(ByteBuffer dst)
String	readString(int len)
void	setPos(long pos)
long	size()	First checks whether there is at least one more byte available and afterwards returns the currently known size
SeekableByteChannel	truncate(long size)
int	write(ByteBuffer src)

Methods inherited from class ReadableByteChannelBase

close, isOpen, isUnderlyingEntityKnownToBeClosed, read

Methods inherited from class Object

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

Methods inherited from interface Channel

isOpen

Methods inherited from interface Seekable

binarySearch, cloneObject, close, compareToPrefix, deltaPos, get, nextPos, peekNextBytes, posToNext, posToNext, posToPrev, prevPos, read

Methods inherited from interface SeekableByteChannel

read

Field Details

pos

protected long pos

pointer

protected BufferOverInputStream.BucketPointer pointer

Constructor Details

ByteArrayChannel

public ByteArrayChannel(long pos,
 BufferOverInputStream.BucketPointer pointer)

Method Details

position

public BufferOverInputStream.ByteArrayChannel position(long pos)

Setting a position outside of the size of the entity is valid will will cause a read to immediately return an EOF See ReadableByteChannel

Specified by:

position in interface SeekableByteChannel

Parameters:

pos -

Returns:

position

public long position()

Specified by:

position in interface SeekableByteChannel

readActual

public int readActual(ByteBuffer dst)
               throws IOException

Specified by:

readActual in class ReadableByteChannelBase

Throws:

IOException

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Throws:

IOException

size

public long size()
          throws IOException

First checks whether there is at least one more byte available and afterwards returns the currently known size

Specified by:

size in interface Seekable

Specified by:

size in interface SeekableByteChannel

Throws:

IOException

loadAll

public long loadAll()
             throws IOException

Loads all data into the buffer and returns the total size

Throws:

IOException

truncate

public SeekableByteChannel truncate(long size)
                             throws IOException

Specified by:

truncate in interface SeekableByteChannel

Throws:

IOException

clone

public Seekable clone()

Specified by:

clone in interface Seekable

Overrides:

clone in class Object

getPos

public long getPos()
            throws IOException

Specified by:

getPos in interface Seekable

Throws:

IOException

setPos

public void setPos(long pos)
            throws IOException

Specified by:

setPos in interface Seekable

Throws:

IOException

posToStart

public void posToStart()
                throws IOException

Specified by:

posToStart in interface Seekable

Throws:

IOException

posToEnd

public void posToEnd()
              throws IOException

Set the position to the end of the stream immediately loads all data.

Specified by:

posToEnd in interface Seekable

Throws:

IOException

isPosBeforeStart

public boolean isPosBeforeStart()
                         throws IOException

Specified by:

isPosBeforeStart in interface Seekable

Throws:

IOException

isPosAfterEnd

public boolean isPosAfterEnd()
                      throws IOException

Specified by:

isPosAfterEnd in interface Seekable

Throws:

IOException

readString

public String readString(int len)
                  throws IOException

Specified by:

readString in interface Seekable

Throws:

IOException

checkNext

public int checkNext(int len,
 boolean changePos)
              throws IOException

Specified by:

checkNext in interface Seekable

Throws:

IOException

get

public byte get()
         throws IOException

Specified by:

get in interface Seekable

Throws:

IOException

checkPrev

public int checkPrev(int len,
 boolean changePos)
              throws IOException

The method assumes that the current position is in the valid range

Specified by:

checkPrev in interface Seekable

Throws:

IOException