Package org.eclipse.jetty.http.compression

Class NBitIntegerDecoder

java.lang.Object

org.eclipse.jetty.http.compression.NBitIntegerDecoder

public class NBitIntegerDecoder
extends Object

Used to decode integers as described in RFC7541.

Constructor Summary

Constructors

Constructor	Description
NBitIntegerDecoder()

Method Summary

Modifier and Type	Method	Description
int	decodeInt(ByteBuffer buffer)	Decode an integer from the buffer.
long	decodeLong(ByteBuffer buffer)	Decode a long from the buffer.
void	reset()	Reset the internal state of the parser.
void	setPrefix(int prefix)	Set the prefix length in of the integer representation in bits.

Methods inherited from class java.lang.Object

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

Constructor Details

NBitIntegerDecoder

public NBitIntegerDecoder()

Method Details

setPrefix

public void setPrefix(int prefix)

Set the prefix length in of the integer representation in bits. A prefix of 6 means the integer representation starts after the first 2 bits.

Parameters:

prefix - the number of bits in the integer prefix.

decodeInt

public int decodeInt(ByteBuffer buffer)

Decode an integer from the buffer. If the buffer does not contain the complete integer representation a value of -1 is returned to indicate that more data is needed to complete parsing. This should be only after the prefix has been set with setPrefix(int).

Parameters:

buffer - the buffer containing the encoded integer.

Returns:

the decoded integer or -1 to indicate that more data is needed.

Throws:

ArithmeticException - if the value overflows a int.

decodeLong

public long decodeLong(ByteBuffer buffer)

Decode a long from the buffer. If the buffer does not contain the complete integer representation a value of -1 is returned to indicate that more data is needed to complete parsing. This should be only after the prefix has been set with setPrefix(int).

Parameters:

buffer - the buffer containing the encoded integer.

Returns:

the decoded long or -1 to indicate that more data is needed.

Throws:

ArithmeticException - if the value overflows a long.

reset

public void reset()

Reset the internal state of the parser.