Package io.grpc.alts.internal

Class AltsFraming

java.lang.Object

io.grpc.alts.internal.AltsFraming

public final class AltsFraming
extends java.lang.Object

Framing and deframing methods and classes used by handshaker.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AltsFraming.Parser	A helper class to read a frame.
(package private) static class	AltsFraming.Producer	A helper class to write a frame.

Field Summary

Fields

Modifier and Type	Field	Description
private static int	FRAME_LENGTH_HEADER_SIZE
private static int	FRAME_MESSAGE_TYPE_HEADER_SIZE
private static int	INITIAL_BUFFER_CAPACITY
private static int	MAX_DATA_LENGTH
private static int	MESSAGE_TYPE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	AltsFraming()

Method Summary

Modifier and Type	Method	Description
private static void	copy(java.nio.ByteBuffer dst, java.nio.ByteBuffer src)	Copy as much as possible to dst from src.
(package private) static int	getFrameLengthHeaderSize()
(package private) static int	getFrameMessageTypeHeaderSize()
(package private) static int	getFramingOverhead()
(package private) static int	getMaxDataLength()
(package private) static java.nio.ByteBuffer	toFrame(java.nio.ByteBuffer input, int dataSize)	Creates a frame of length dataSize + FRAME_HEADER_SIZE using the input bytes, if dataSize <= input.remaining().

Methods inherited from class java.lang.Object

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

Field Detail

FRAME_LENGTH_HEADER_SIZE

private static final int FRAME_LENGTH_HEADER_SIZE

See Also:

Constant Field Values

FRAME_MESSAGE_TYPE_HEADER_SIZE

private static final int FRAME_MESSAGE_TYPE_HEADER_SIZE

See Also:

Constant Field Values

MAX_DATA_LENGTH

private static final int MAX_DATA_LENGTH

See Also:

Constant Field Values

INITIAL_BUFFER_CAPACITY

private static final int INITIAL_BUFFER_CAPACITY

See Also:

Constant Field Values

MESSAGE_TYPE

private static final int MESSAGE_TYPE

See Also:

Constant Field Values

Constructor Detail

AltsFraming

private AltsFraming()

Method Detail

getFrameLengthHeaderSize

static int getFrameLengthHeaderSize()

getFrameMessageTypeHeaderSize

static int getFrameMessageTypeHeaderSize()

getMaxDataLength

static int getMaxDataLength()

getFramingOverhead

static int getFramingOverhead()

toFrame

static java.nio.ByteBuffer toFrame(java.nio.ByteBuffer input,
                                   int dataSize)
                            throws java.security.GeneralSecurityException

Creates a frame of length dataSize + FRAME_HEADER_SIZE using the input bytes, if dataSize <= input.remaining(). Otherwise, a frame of length input.remaining() + FRAME_HEADER_SIZE is created.

Throws:

java.security.GeneralSecurityException

copy

private static void copy(java.nio.ByteBuffer dst,
                         java.nio.ByteBuffer src)

Copy as much as possible to dst from src. Unlike ByteBuffer.put(ByteBuffer), this stops early if there is no room left in dst.