Package org.apache.hadoop.hbase.io.compress.lz4

Class Lz4Codec

java.lang.Object

org.apache.hadoop.hbase.io.compress.lz4.Lz4Codec

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.compress.CompressionCodec

@Private
public class Lz4Codec
extends Object
implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.compress.CompressionCodec

Hadoop Lz4 codec implemented with lz4-java.

This is data format compatible with Hadoop's native lz4 codec.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.io.compress.CompressionCodec

org.apache.hadoop.io.compress.CompressionCodec.Util

Field Summary

Fields

Modifier and Type	Field	Description
private int	bufferSize
private org.apache.hadoop.conf.Configuration	conf
static final String	LZ4_BUFFER_SIZE_KEY

Constructor Summary

Constructors

Constructor	Description
Lz4Codec()

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.io.compress.Compressor	createCompressor()
org.apache.hadoop.io.compress.Decompressor	createDecompressor()
org.apache.hadoop.io.compress.CompressionInputStream	createInputStream(InputStream in)
org.apache.hadoop.io.compress.CompressionInputStream	createInputStream(InputStream in, org.apache.hadoop.io.compress.Decompressor d)
org.apache.hadoop.io.compress.CompressionOutputStream	createOutputStream(OutputStream out)
org.apache.hadoop.io.compress.CompressionOutputStream	createOutputStream(OutputStream out, org.apache.hadoop.io.compress.Compressor c)
(package private) static int	getBufferSize(org.apache.hadoop.conf.Configuration conf)
Class<? extends org.apache.hadoop.io.compress.Compressor>	getCompressorType()
org.apache.hadoop.conf.Configuration	getConf()
Class<? extends org.apache.hadoop.io.compress.Decompressor>	getDecompressorType()
String	getDefaultExtension()
void	setConf(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

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

Field Details

LZ4_BUFFER_SIZE_KEY

public static final String LZ4_BUFFER_SIZE_KEY

See Also:

• Constant Field Values

conf

private org.apache.hadoop.conf.Configuration conf

bufferSize

private int bufferSize

Constructor Details

Lz4Codec

public Lz4Codec()

Method Details

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

createCompressor

public org.apache.hadoop.io.compress.Compressor createCompressor()

Specified by:

createCompressor in interface org.apache.hadoop.io.compress.CompressionCodec

createDecompressor

public org.apache.hadoop.io.compress.Decompressor createDecompressor()

Specified by:

createDecompressor in interface org.apache.hadoop.io.compress.CompressionCodec

createInputStream

public org.apache.hadoop.io.compress.CompressionInputStream createInputStream(InputStream in)
                                                                       throws IOException

Specified by:

createInputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createInputStream

public org.apache.hadoop.io.compress.CompressionInputStream createInputStream(InputStream in,
 org.apache.hadoop.io.compress.Decompressor d)
                                                                       throws IOException

Specified by:

createInputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createOutputStream

public org.apache.hadoop.io.compress.CompressionOutputStream createOutputStream(OutputStream out)
                                                                         throws IOException

Specified by:

createOutputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createOutputStream

public org.apache.hadoop.io.compress.CompressionOutputStream createOutputStream(OutputStream out,
 org.apache.hadoop.io.compress.Compressor c)
                                                                         throws IOException

Specified by:

createOutputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

getCompressorType

public Class<? extends org.apache.hadoop.io.compress.Compressor> getCompressorType()

Specified by:

getCompressorType in interface org.apache.hadoop.io.compress.CompressionCodec

getDecompressorType

public Class<? extends org.apache.hadoop.io.compress.Decompressor> getDecompressorType()

Specified by:

getDecompressorType in interface org.apache.hadoop.io.compress.CompressionCodec

getDefaultExtension

public String getDefaultExtension()

Specified by:

getDefaultExtension in interface org.apache.hadoop.io.compress.CompressionCodec

getBufferSize

static int getBufferSize(org.apache.hadoop.conf.Configuration conf)