org.elasticsearch.common.compress.lzf
Class LZFChunk

java.lang.Object
  org.elasticsearch.common.compress.lzf.LZFChunk

public class LZFChunk
extends java.lang.Object

Helper class used to store LZF encoded segments (compressed and non-compressed) that can be sequenced to produce LZF files/streams.

Field Summary

static int	BLOCK_TYPE_COMPRESSED
static int	BLOCK_TYPE_NON_COMPRESSED
static byte	BYTE_V
static byte	BYTE_Z
static int	MAX_CHUNK_LEN
static int	MAX_LITERAL Maximum length of literal run for LZF encoding.

Method Summary

int	copyTo(byte[] dst, int ptr)
static LZFChunk	createCompressed(int origLen, byte[] encData, int encPtr, int encLen) Factory method for constructing compressed chunk
static int	createCompressed(java.io.OutputStream os, int origLen, byte[] encData, int encPtr, int encLen)
static LZFChunk	createNonCompressed(byte[] plainData, int ptr, int len) Factory method for constructing compressed chunk
static int	createNonCompressed(java.io.OutputStream os, byte[] plainData, int ptr, int len)
byte[]	getData()
int	length()
LZFChunk	next()
void	setNext(LZFChunk next)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_LITERAL

public static final int MAX_LITERAL

Maximum length of literal run for LZF encoding.

See Also:

Constant Field Values

MAX_CHUNK_LEN

public static final int MAX_CHUNK_LEN

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Constant Field Values

BYTE_Z

public static final byte BYTE_Z

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Constant Field Values

BYTE_V

public static final byte BYTE_V

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Constant Field Values

BLOCK_TYPE_NON_COMPRESSED

public static final int BLOCK_TYPE_NON_COMPRESSED

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Constant Field Values

BLOCK_TYPE_COMPRESSED

public static final int BLOCK_TYPE_COMPRESSED

See Also:

Constant Field Values

Method Detail

createCompressed

public static int createCompressed(java.io.OutputStream os,
                                   int origLen,
                                   byte[] encData,
                                   int encPtr,
                                   int encLen)
                            throws java.io.IOException

Throws:

java.io.IOException

createCompressed

public static LZFChunk createCompressed(int origLen,
                                        byte[] encData,
                                        int encPtr,
                                        int encLen)

Factory method for constructing compressed chunk

createNonCompressed

public static int createNonCompressed(java.io.OutputStream os,
                                      byte[] plainData,
                                      int ptr,
                                      int len)
                               throws java.io.IOException

Throws:

java.io.IOException

createNonCompressed

public static LZFChunk createNonCompressed(byte[] plainData,
                                           int ptr,
                                           int len)

Factory method for constructing compressed chunk

setNext

public void setNext(LZFChunk next)

next

public LZFChunk next()

length

public int length()

getData

public byte[] getData()

copyTo

public int copyTo(byte[] dst,
                  int ptr)