voldemort.store.compress.lzf
Class ChunkEncoder

java.lang.Object
  voldemort.store.compress.lzf.ChunkEncoder

public class ChunkEncoder
extends java.lang.Object

Class that handles actual encoding of individual chunks. Resulting chunks can be compressed or non-compressed; compression is only used if it actually reduces chunk size (including overhead of additional header bytes)

Code adapted from H2 project (http://www.h2database.com) Java LZF implementation by Thomas (which itself was inspired by original C code by Marc A Lehmann)

Constructor Summary

ChunkEncoder(int totalLength)

Method Summary

LZFChunk

encodeChunk(byte[] data, int offset, int len) Method for compressing (or not) individual chunks

Methods inherited from class java.lang.Object

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

Constructor Detail

ChunkEncoder

public ChunkEncoder(int totalLength)

Parameters:

totalLength - Total encoded length; used for calculating size of hash table to use

Method Detail

encodeChunk

public LZFChunk encodeChunk(byte[] data,
                            int offset,
                            int len)

Method for compressing (or not) individual chunks