Class HuffmanEncoder

java.lang.Object

org.eclipse.jetty.http.compression.HuffmanEncoder

public class HuffmanEncoder
extends Object

Used to encode strings Huffman encoding.

Characters are encoded with ISO-8859-1, if any multi-byte characters or control characters are present the encoder will throw EncodingException.

Method Summary

Modifier and Type	Method	Description
static void	encode(ByteBuffer buffer, String s)
static void	encodeLowerCase(ByteBuffer buffer, String s)
static int	octetsNeeded(byte[] b)
static int	octetsNeeded(String s)
static int	octetsNeededLowerCase(String s)

Methods inherited from class Object

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

Method Details

octetsNeeded

public static int octetsNeeded(String s)

Parameters:

s - the string to encode.

Returns:

the number of octets needed to encode the string, or -1 if it cannot be encoded.

octetsNeeded

public static int octetsNeeded(byte[] b)

Parameters:

b - the byte array to encode.

Returns:

the number of octets needed to encode the bytes, or -1 if it cannot be encoded.

encode

public static void encode(ByteBuffer buffer,
 String s)

Parameters:

buffer - the buffer to encode into.

s - the string to encode.

octetsNeededLowerCase

public static int octetsNeededLowerCase(String s)

Parameters:

s - the string to encode in lowercase.

Returns:

the number of octets needed to encode the string, or -1 if it cannot be encoded.

encodeLowerCase

public static void encodeLowerCase(ByteBuffer buffer,
 String s)

Parameters:

buffer - the buffer to encode into in lowercase.

s - the string to encode.