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

static int

HEADER_SIZE UDP packet header size.

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

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 [in bytes]

getBytes

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

Store packet into byte array.

Parameters:

msg - destination byte array

offset - byte array starting offset