Package io.netty.handler.codec.http2

Class HpackHuffmanEncoder

java.lang.Object

io.netty.handler.codec.http2.HpackHuffmanEncoder

final class HpackHuffmanEncoder
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private final class	HpackHuffmanEncoder.EncodedLengthProcessor
private final class	HpackHuffmanEncoder.EncodeProcessor

Field Summary

Fields

Modifier and Type	Field	Description
private final int[]	codes
private final HpackHuffmanEncoder.EncodedLengthProcessor	encodedLengthProcessor
private final HpackHuffmanEncoder.EncodeProcessor	encodeProcessor
private final byte[]	lengths

Constructor Summary

Constructors

Modifier	Constructor	Description
(package private)	HpackHuffmanEncoder()
private	HpackHuffmanEncoder(int[] codes, byte[] lengths)	Creates a new Huffman encoder with the specified Huffman coding.

Method Summary

Modifier and Type	Method	Description
void	encode(ByteBuf out, CharSequence data)	Compresses the input string literal using the Huffman coding.
private void	encodeSlowPath(ByteBuf out, CharSequence data)
(package private) int	getEncodedLength(CharSequence data)	Returns the number of bytes required to Huffman encode the input string literal.
private int	getEncodedLengthSlowPath(CharSequence data)

Methods inherited from class java.lang.Object

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

Field Details

codes

private final int[] codes

lengths

private final byte[] lengths

encodedLengthProcessor

private final HpackHuffmanEncoder.EncodedLengthProcessor encodedLengthProcessor

encodeProcessor

private final HpackHuffmanEncoder.EncodeProcessor encodeProcessor

Constructor Details

HpackHuffmanEncoder

HpackHuffmanEncoder()

HpackHuffmanEncoder

private HpackHuffmanEncoder(int[] codes,
 byte[] lengths)

Creates a new Huffman encoder with the specified Huffman coding.

Parameters:

codes - the Huffman codes indexed by symbol

lengths - the length of each Huffman code

Method Details

encode

public void encode(ByteBuf out,
 CharSequence data)

Compresses the input string literal using the Huffman coding.

Parameters:

out - the output stream for the compressed data

data - the string literal to be Huffman encoded

encodeSlowPath

private void encodeSlowPath(ByteBuf out,
 CharSequence data)

getEncodedLength

int getEncodedLength(CharSequence data)

Returns the number of bytes required to Huffman encode the input string literal.

Parameters:

data - the string literal to be Huffman encoded

Returns:

the number of bytes required to Huffman encode data

getEncodedLengthSlowPath

private int getEncodedLengthSlowPath(CharSequence data)