jist.swans.trans
Class TransUdp.UdpMessage

java.lang.Object
  jist.swans.trans.TransInterface.TransMessage
      jist.swans.trans.TransUdp.UdpMessage

All Implemented Interfaces:

JistAPI.Timeless, Message

Enclosing class:

TransUdp

public static class TransUdp.UdpMessage
extends TransInterface.TransMessage

UDP packet structure. UDP packet: (size = 8 + payload) src port size: 2 dst port size: 2 payload length size: 2 checksum size: 2 payload size: variable

Field Summary

private int	dstPort packet destination address.
static int	HEADER_SIZE UDP packet header size.
private Message	payload packet payload.
private int	srcPort packet source address.

Fields inherited from interface jist.swans.misc.Message

NULL

Constructor Summary

TransUdp.UdpMessage(int srcPort, int dstPort, Message payload)
Create an new UDP packet.

Method Summary

void	getBytes(byte[] msg, int offset) Store packet into byte array.
int	getDstPort() Return packet destination port.
Message	getPayload() Return packet payload.
int	getSize() Return packet size or Constants.ZERO_WIRE_SIZE.
int	getSrcPort() Return packet source port.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

HEADER_SIZE

public static final int HEADER_SIZE

UDP packet header size.

See Also:

Constant Field Values

srcPort

private int srcPort

packet source address.

dstPort

private int dstPort

packet destination address.

payload

private Message payload

packet payload.

Constructor Detail

TransUdp.UdpMessage

public TransUdp.UdpMessage(int srcPort,
                           int dstPort,
                           Message payload)

Create an new UDP packet.

Parameters:

srcPort - message source port

dstPort - message destination port

payload - message payload

Method Detail

getSrcPort

public int getSrcPort()

Return packet source port.

Returns:

packet source port

getDstPort

public int getDstPort()

Return packet destination port.

Returns:

packet destination port

getPayload

public Message getPayload()

Return packet payload.

Returns:

packet payload

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getSize

public int getSize()

Return packet size or Constants.ZERO_WIRE_SIZE.

Returns:

packet size

getBytes

public void getBytes(byte[] msg,
                     int offset)

Store packet into byte array.

Parameters:

msg - destination byte array

offset - byte array starting offset