org.eclipse.californium.scandium.dtls

Class FragmentedHandshakeMessage

java.lang.Object

org.eclipse.californium.scandium.dtls.AbstractMessage

org.eclipse.californium.scandium.dtls.HandshakeMessage

org.eclipse.californium.scandium.dtls.FragmentedHandshakeMessage

All Implemented Interfaces:

DTLSMessage

public final class FragmentedHandshakeMessage
extends HandshakeMessage

This class represents a fragmented handshake message. It treats the underlying handshake body as transparent data and just helps keeping track of the fragment_offset and fragment_length.

Field Summary

Fields inherited from class org.eclipse.californium.scandium.dtls.HandshakeMessage

FRAGMENT_LENGTH_BITS, FRAGMENT_OFFSET_BITS, MESSAGE_HEADER_LENGTH_BYTES, MESSAGE_LENGTH_BITS, MESSAGE_SEQ_BITS, MESSAGE_TYPE_BITS

Constructor Summary

Constructors

Constructor and Description
FragmentedHandshakeMessage(HandshakeType type, int messageLength, int messageSeq, int fragmentOffset, byte[] fragmentedBytes, InetSocketAddress peerAddress) Called when reassembling a handshake message or received a fragment during the handshake.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	fragmentToByteArray() The serialization of the handshake body (without the handshake header).
int	getFragmentLength() Get fragment length.
int	getFragmentOffset() Get fragment offset.
int	getMessageLength() Must be implemented by each subclass.
HandshakeType	getMessageType() Returns the type of the handshake message.
String	toString()

Methods inherited from class org.eclipse.californium.scandium.dtls.HandshakeMessage

fragmentChanged, fromByteArray, fromGenericHandshakeMessage, getContentType, getMessageSeq, getNextHandshakeMessage, getRawMessage, setMessageSeq, setNextHandshakeMessage, size, toByteArray, writeTo

Methods inherited from class org.eclipse.californium.scandium.dtls.AbstractMessage

getPeer

Methods inherited from class java.lang.Object

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

Constructor Detail

FragmentedHandshakeMessage

public FragmentedHandshakeMessage(HandshakeType type,
                          int messageLength,
                          int messageSeq,
                          int fragmentOffset,
                          byte[] fragmentedBytes,
                          InetSocketAddress peerAddress)

Called when reassembling a handshake message or received a fragment during the handshake.

Parameters:

type - the message's type.

messageLength - the message's total length.

messageSeq - the message's message_seq.

fragmentOffset - the message's fragment_offset.

fragmentedBytes - the fragment's byte representation.

peerAddress - the IP address and port of the peer this message has been received from or should be sent to

Method Detail

getMessageType

public HandshakeType getMessageType()

Description copied from class: HandshakeMessage

Returns the type of the handshake message. See HandshakeType.

Specified by:

getMessageType in class HandshakeMessage

Returns:

the HandshakeType.

getMessageLength

public int getMessageLength()

Description copied from class: HandshakeMessage

Must be implemented by each subclass. The length is given in bytes and only includes the length of the subclass' specific fields (not the handshake message header).

Specified by:

getMessageLength in class HandshakeMessage

Returns:

the length of the message in bytes.

getFragmentOffset

public int getFragmentOffset()

Description copied from class: HandshakeMessage

Get fragment offset.

Overrides:

getFragmentOffset in class HandshakeMessage

Returns:

fragment offset.

getFragmentLength

public int getFragmentLength()

Description copied from class: HandshakeMessage

Get fragment length.

Overrides:

getFragmentLength in class HandshakeMessage

Returns:

fragment length

toString

public String toString()

Overrides:

toString in class HandshakeMessage

fragmentToByteArray

public byte[] fragmentToByteArray()

Description copied from class: HandshakeMessage

The serialization of the handshake body (without the handshake header). Must be implemented by each subclass. Except the ClientHello, the fragments are considered to be not modified. If a modification is required, call HandshakeMessage.fragmentChanged().

Specified by:

fragmentToByteArray in class HandshakeMessage

Returns:

the raw byte representation of the handshake body.