Module org.elasticsearch.server

Package org.elasticsearch.transport

Class Lz4TransportDecompressor

java.lang.Object

org.elasticsearch.transport.TransportDecompressor

org.elasticsearch.transport.Lz4TransportDecompressor

All Implemented Interfaces:

Closeable, AutoCloseable, Releasable

public class Lz4TransportDecompressor
extends TransportDecompressor

This file is forked from the https://netty.io project. In particular, it forks the following file io.netty.handler.codec.compression.Lz4FrameDecoder. It modifies the original netty code to operate on byte arrays opposed to ByteBufs. Additionally, it integrates the decompression code to work in the Elasticsearch transport pipeline, Finally, it replaces the custom Netty decoder exceptions. This class is necessary as Netty is not a dependency in Elasticsearch server module.

Field Summary

Fields inherited from class org.elasticsearch.transport.TransportDecompressor

hasSkippedHeader, pageLength, pageOffset, pages

Constructor Summary

Constructors

Constructor	Description
Lz4TransportDecompressor(Recycler<org.apache.lucene.util.BytesRef> recycler)

Method Summary

Modifier and Type	Method	Description
int	decompress(BytesReference bytesReference)	Decompress the provided bytes
Compression.Scheme	getScheme()
boolean	isClosed()	Returns true if and only if the end of the compressed stream has been reached.

Methods inherited from class org.elasticsearch.transport.TransportDecompressor

close, maybeAddNewPage, pollDecompressedPage, pollLastPage

Methods inherited from class java.lang.Object

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

Constructor Details

Lz4TransportDecompressor

public Lz4TransportDecompressor(Recycler<org.apache.lucene.util.BytesRef> recycler)

Method Details

getScheme

public Compression.Scheme getScheme()

Specified by:

getScheme in class TransportDecompressor

decompress

public int decompress(BytesReference bytesReference)
               throws IOException

Description copied from class: TransportDecompressor

Decompress the provided bytes

Specified by:

decompress in class TransportDecompressor

Parameters:

bytesReference - to decompress

Returns:

number of compressed bytes consumed

Throws:

IOException

isClosed

public boolean isClosed()

Returns true if and only if the end of the compressed stream has been reached.