org.elasticsearch.common.compress.lzf
Class BufferRecycler

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

public class BufferRecycler
extends java.lang.Object

Simple helper class to encapsulate details of basic buffer recycling scheme, which helps a lot (as per profiling) for smaller encoding cases.

Field Summary

protected static java.lang.ThreadLocal<java.lang.ref.SoftReference<BufferRecycler>>

_recyclerRef This ThreadLocal contains a java.lang.ref.SoftRerefence to a BufferRecycler used to provide a low-cost buffer recycling for buffers we need for encoding, decoding.

Constructor Summary

BufferRecycler()

Method Summary

byte[]	allocDecodeBuffer(int size)
byte[]	allocEncodingBuffer(int minSize)
int[]	allocEncodingHash(int suggestedSize)
byte[]	allocInputBuffer(int minSize)
byte[]	allocOutputBuffer(int minSize)
static void	clean()
static BufferRecycler	instance() Accessor to get thread-local recycler instance
void	releaseDecodeBuffer(byte[] buffer)
void	releaseEncodeBuffer(byte[] buffer)
void	releaseEncodingHash(int[] buffer)
void	releaseInputBuffer(byte[] buffer)
void	releaseOutputBuffer(byte[] buffer)

Methods inherited from class java.lang.Object

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

Field Detail

_recyclerRef

protected static final java.lang.ThreadLocal<java.lang.ref.SoftReference<BufferRecycler>> _recyclerRef

This ThreadLocal contains a java.lang.ref.SoftRerefence to a BufferRecycler used to provide a low-cost buffer recycling for buffers we need for encoding, decoding.

Constructor Detail

BufferRecycler

public BufferRecycler()

Method Detail

instance

public static BufferRecycler instance()

Accessor to get thread-local recycler instance

clean

public static void clean()

allocEncodingBuffer

public byte[] allocEncodingBuffer(int minSize)

releaseEncodeBuffer

public void releaseEncodeBuffer(byte[] buffer)

allocOutputBuffer

public byte[] allocOutputBuffer(int minSize)

releaseOutputBuffer

public void releaseOutputBuffer(byte[] buffer)

allocEncodingHash

public int[] allocEncodingHash(int suggestedSize)

releaseEncodingHash

public void releaseEncodingHash(int[] buffer)

allocInputBuffer

public byte[] allocInputBuffer(int minSize)

releaseInputBuffer

public void releaseInputBuffer(byte[] buffer)

allocDecodeBuffer

public byte[] allocDecodeBuffer(int size)

releaseDecodeBuffer

public void releaseDecodeBuffer(byte[] buffer)