Package org.aksw.commons.io.hadoop

Class SeekableReadableChannelWithBlockTracking<T extends SeekableByteChannel>

java.lang.Object

org.aksw.commons.io.hadoop.SeekableReadableChannelWithBlockTracking<T>

All Implemented Interfaces:

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

public class SeekableReadableChannelWithBlockTracking<T extends SeekableByteChannel>
extends Object
implements SeekableByteChannelDecorator

Field Summary

Fields

Modifier and Type	Field	Description
protected NavigableMap<Long,Long>	blockToSuccessor
protected long	currentBlock
protected T	delegate
protected int	endOfBlockMarker

Constructor Summary

Constructors

Constructor	Description
SeekableReadableChannelWithBlockTracking(T delegate)
SeekableReadableChannelWithBlockTracking(T delegate, int endOfBlockMarker)

Method Summary

Modifier and Type	Method	Description
SeekableByteChannel	getDecoratee()
SeekableByteChannel	position(long newPosition)
int	read(ByteBuffer byteBuffer)
int	write(ByteBuffer src)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.commons.io.util.channel.SeekableByteChannelDecorator

close, isOpen, position, size, truncate

Field Details

delegate

protected T extends SeekableByteChannel delegate

endOfBlockMarker

protected int endOfBlockMarker

currentBlock

protected long currentBlock

blockToSuccessor

protected NavigableMap<Long,Long> blockToSuccessor

Constructor Details

SeekableReadableChannelWithBlockTracking

public SeekableReadableChannelWithBlockTracking(T delegate)

SeekableReadableChannelWithBlockTracking

public SeekableReadableChannelWithBlockTracking(T delegate,
 int endOfBlockMarker)

Method Details

getDecoratee

public SeekableByteChannel getDecoratee()

Specified by:

getDecoratee in interface SeekableByteChannelDecorator

read

public int read(ByteBuffer byteBuffer)
         throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Specified by:

read in interface SeekableByteChannelDecorator

Throws:

IOException

write

public int write(ByteBuffer src)
          throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface SeekableByteChannelDecorator

Specified by:

write in interface WritableByteChannel

Throws:

IOException

position

public SeekableByteChannel position(long newPosition)
                             throws IOException

Specified by:

position in interface SeekableByteChannel

Specified by:

position in interface SeekableByteChannelDecorator

Throws:

IOException