net.csdn.modules.compress.lzf

Class ChunkEncoder

java.lang.Object

net.csdn.modules.compress.lzf.ChunkEncoder

public class ChunkEncoder
extends 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)

Author:

tatu@ning.com

Constructor Summary

Constructors

Constructor and Description
ChunkEncoder(int totalLength, BufferRecycler recycler)

Method Summary

Modifier and Type	Method and Description
void	close() Method to close once encoder is no longer in use.
void	encodeAndWriteChunk(byte[] data, int offset, int len, OutputStream out) Method for encoding individual chunk, writing it to given output stream.
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,
                    BufferRecycler recycler)

Parameters:

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

Method Detail

close

public void close()

Method to close once encoder is no longer in use. Note: after calling this method, further calls to #_encodeChunk will fail

encodeChunk

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

Method for compressing (or not) individual chunks

encodeAndWriteChunk

public void encodeAndWriteChunk(byte[] data,
                                int offset,
                                int len,
                                OutputStream out)
                         throws IOException

Method for encoding individual chunk, writing it to given output stream.

Throws:

IOException