org.apache.coyote.http2

Class HPackHuffman

java.lang.Object

org.apache.coyote.http2.HPackHuffman

public class HPackHuffman
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	HPackHuffman.HuffmanCode

Field Summary

Fields

Modifier and Type	Field and Description
protected static StringManager	sm

Constructor Summary

Constructors

Constructor and Description
HPackHuffman()

Method Summary

Modifier and Type	Method and Description
static void	decode(ByteBuffer data, int length, StringBuilder target) Decodes a huffman encoded string into the target StringBuilder.
static boolean	encode(ByteBuffer buffer, String toEncode, boolean forceLowercase) Encodes the given string into the buffer.

Methods inherited from class java.lang.Object

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

Field Detail

sm

protected static final StringManager sm

Constructor Detail

HPackHuffman

public HPackHuffman()

Method Detail

decode

public static void decode(ByteBuffer data,
                          int length,
                          StringBuilder target)
                   throws HpackException

Decodes a huffman encoded string into the target StringBuilder. There must be enough space left in the buffer for this method to succeed.

Parameters:

data - The byte buffer

length - The length of data from the buffer to decode

target - The target for the decompressed data

Throws:

HpackException - If the Huffman encoded value in HPACK headers did not end with EOS padding

encode

public static boolean encode(ByteBuffer buffer,
                             String toEncode,
                             boolean forceLowercase)

Encodes the given string into the buffer. If there is not enough space in the buffer, or the encoded version is bigger than the original it will return false and not modify the buffers position.

Parameters:

buffer - The buffer to encode into

toEncode - The string to encode

forceLowercase - If the string should be encoded in lower case

Returns:

true if encoding succeeded