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

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 java.lang.Object

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

Methods inherited from interface org.aksw.commons.io.input.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