Class BlockSource

java.lang.Object

org.aksw.commons.io.hadoop.binseach.v2.BlockSource

All Implemented Interfaces:

HasArrayOps<byte[]>, ReadableChannelFactory<byte[]>, ReadableChannelSource<byte[]>, SeekableReadableChannelSource<byte[]>

public class BlockSource
extends Object
implements SeekableReadableChannelSource<byte[]>

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.hadoop.io.compress.SplittableCompressionCodec	codec
protected SeekableReadableChannelSource<byte[]>	delegate

Constructor Summary

Constructors

Constructor	Description
BlockSource(SeekableReadableChannelSource<byte[]> delegate, org.apache.hadoop.io.compress.SplittableCompressionCodec codec)

Method Summary

Modifier and Type	Method	Description
ArrayOps<byte[]>	getArrayOps()
SeekableReadableChannelSource<byte[]>	getDelegate()
BlockSourceChannel	newReadableChannel()
BlockSourceChannel	newReadableChannel(long offset)
BlockSourceChannel	newReadableChannel(long offset, boolean blockMode)	block mode: return -2 when reaching a block boundary.
BlockSourceChannel	newReadableChannel(long start, long end)
BlockSourceChannel	newReadableChannel(long start, long end, boolean blockMode)
static BlockSource	of(Path path, org.apache.hadoop.io.compress.SplittableCompressionCodec codec)
static BlockSource	of(SeekableReadableChannelSource<byte[]> delegate, org.apache.hadoop.io.compress.SplittableCompressionCodec codec)
long	size()

Methods inherited from class Object

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

Methods inherited from interface SeekableReadableChannelSource

newReadableChannel

Field Details

delegate

protected SeekableReadableChannelSource<byte[]> delegate

codec

protected org.apache.hadoop.io.compress.SplittableCompressionCodec codec

Constructor Details

BlockSource

public BlockSource(SeekableReadableChannelSource<byte[]> delegate,
 org.apache.hadoop.io.compress.SplittableCompressionCodec codec)

Method Details

getDelegate

public SeekableReadableChannelSource<byte[]> getDelegate()

size

public long size()
          throws IOException

Specified by:

size in interface ReadableChannelSource<byte[]>

Throws:

IOException

of

public static BlockSource of(Path path,
 org.apache.hadoop.io.compress.SplittableCompressionCodec codec)

of

public static BlockSource of(SeekableReadableChannelSource<byte[]> delegate,
 org.apache.hadoop.io.compress.SplittableCompressionCodec codec)

newReadableChannel

public BlockSourceChannel newReadableChannel(long start,
 long end)
                                      throws IOException

Specified by:

newReadableChannel in interface ReadableChannelFactory<byte[]>

Specified by:

newReadableChannel in interface ReadableChannelSource<byte[]>

Specified by:

newReadableChannel in interface SeekableReadableChannelSource<byte[]>

Throws:

IOException

newReadableChannel

public BlockSourceChannel newReadableChannel(long start,
 long end,
 boolean blockMode)
                                      throws IOException

Throws:

IOException

getArrayOps

public ArrayOps<byte[]> getArrayOps()

Specified by:

getArrayOps in interface HasArrayOps<byte[]>

newReadableChannel

public BlockSourceChannel newReadableChannel(long offset)
                                      throws IOException

Specified by:

newReadableChannel in interface ReadableChannelFactory<byte[]>

Specified by:

newReadableChannel in interface SeekableReadableChannelSource<byte[]>

Throws:

IOException

newReadableChannel

public BlockSourceChannel newReadableChannel(long offset,
 boolean blockMode)
                                      throws IOException

block mode: return -2 when reaching a block boundary.

Throws:

IOException

newReadableChannel

public BlockSourceChannel newReadableChannel()
                                      throws IOException

Specified by:

newReadableChannel in interface ReadableChannelFactory<byte[]>

Specified by:

newReadableChannel in interface SeekableReadableChannelSource<byte[]>

Throws:

IOException