anon.tor.cells
Class Cell

java.lang.Object
  anon.tor.cells.Cell

Direct Known Subclasses:

CreateCell, CreatedCell, DestroyCell, PaddingCell, RelayCell

public abstract class Cell
extends java.lang.Object

Author:

stefan

Field Summary

static int	CELL_PAYLOAD_SIZE
static int	CELL_SIZE
private int	m_circID
private int	m_command
protected byte[]	m_payload

Constructor Summary

protected	Cell(int command)
protected	Cell(int command, int circID)
protected	Cell(int command, int circID, byte[] payload)
protected	Cell(int command, int circID, byte[] payload, int offset)

Method Summary

static Cell	createCell(byte[] cellData) creates a cell with the given data
byte[]	getCellData() creates a fixed-sized cell 2 bytes - circID 1 byte - command 509 bytes - payload
int	getCircuitID() gets the circuit id
int	getCommand() returns the command of the cell
byte[]	getPayload() gets the payload of the cell
void	setPayload(byte[] payload, int offset) sets the payload

Methods inherited from class java.lang.Object

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

Field Detail

CELL_SIZE

public static final int CELL_SIZE

See Also:

Constant Field Values

CELL_PAYLOAD_SIZE

public static final int CELL_PAYLOAD_SIZE

See Also:

Constant Field Values

m_circID

private int m_circID

m_command

private int m_command

m_payload

protected byte[] m_payload

Constructor Detail

Cell

protected Cell(int command)

Cell

protected Cell(int command,
               int circID)

Cell

protected Cell(int command,
               int circID,
               byte[] payload)

Cell

protected Cell(int command,
               int circID,
               byte[] payload,
               int offset)

Method Detail

getCellData

public byte[] getCellData()

creates a fixed-sized cell

2 bytes - circID
1 byte - command
509 bytes - payload

Returns:

composed cell

getCommand

public int getCommand()

returns the command of the cell

Returns:

command

getCircuitID

public int getCircuitID()

gets the circuit id

Returns:

ID

getPayload

public byte[] getPayload()

gets the payload of the cell

Returns:

payload

setPayload

public void setPayload(byte[] payload,
                       int offset)

sets the payload

Parameters:

payload - payload

offset - offset

createCell

public static Cell createCell(byte[] cellData)

creates a cell with the given data

Parameters:

cellData - data

Returns:

a cell