jist.swans.misc
Class MessageBytes

java.lang.Object
  jist.swans.misc.MessageBytes

All Implemented Interfaces:

JistAPI.Timeless, Message

public class MessageBytes
extends java.lang.Object
implements Message

Implementation of Message interface that carries around byte arrays.

Since:

SWANS1.0

Version:

$Id: MessageBytes.java,v 1.6 2004/04/06 16:07:48 barr Exp $

Author:

Rimon Barr <barr+jist@cs.cornell.edu>

Field Summary

protected byte[]	data Message (byte-array) payload.
static byte[]	EMPTY empty byte array.
protected int	length Data length within byte-array.
protected int	offset Data offset within byte-array.

Fields inherited from interface jist.swans.misc.Message

NULL

Constructor Summary

MessageBytes(byte[] data)
Create new message object.

MessageBytes(byte[] data, int offset, int length)
Create new message object.

MessageBytes(java.lang.String data)
Create a new message object.

Method Summary

byte[]	getBytes() Return message payload.
void	getBytes(byte[] msg, int offset) Store packet into byte array.
int	getLength() Return length of data within array.
int	getOffset() Return offset of data within array.
int	getSize() Return packet size or Constants.ZERO_WIRE_SIZE.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final byte[] EMPTY

empty byte array.

data

protected byte[] data

Message (byte-array) payload.

offset

protected int offset

Data offset within byte-array.

length

protected int length

Data length within byte-array.

Constructor Detail

MessageBytes

public MessageBytes(byte[] data,
                    int offset,
                    int length)

Create new message object.

Parameters:

data - message payload

offset - offset index within data array

length - length of data within array

MessageBytes

public MessageBytes(byte[] data)

Create new message object.

Parameters:

data - message payload

MessageBytes

public MessageBytes(java.lang.String data)

Create a new message object.

Parameters:

data - message pyaload

Method Detail

getBytes

public byte[] getBytes()

Return message payload.

Returns:

message payload

getOffset

public int getOffset()

Return offset of data within array.

Returns:

data offset

getLength

public int getLength()

Return length of data within array.

Returns:

data length

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.

Specified by:

getSize in interface Message

Returns:

packet size

getBytes

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

Store packet into byte array.

Specified by:

getBytes in interface Message

Parameters:

msg - destination byte array

offset - byte array starting offset