jmri.jmrix.can.adapters.gridconnect
Class GridConnectReply

java.lang.Object
  jmri.jmrix.AbstractMessage
      jmri.jmrix.AbstractMRReply
          jmri.jmrix.can.adapters.gridconnect.GridConnectReply

All Implemented Interfaces:

Message

Direct Known Subclasses:

MergReply

public class GridConnectReply
extends AbstractMRReply

Class for replies in a GridConnect based message/reply protocol.

The GridConnect protocol encodes messages as an ASCII string of up to 24 characters of the form: :ShhhhNd0d1d2d3d4d5d6d7; hhhh is the two byte (11 useful bits) header The S indicates a standard CAN frame :XhhhhhhhhNd0d1d2d3d4d5d6d7; The X indicates an extended CAN frame N or R indicates a normal or remote frame, in position 6 or 10 d0 - d7 are the (up to) 8 data bytes

Author:

Andrew Crosland Copyright (C) 2008, 2009, Bob Jacobsen Copyright (C) 2008

Field Summary

Fields inherited from class jmri.jmrix.AbstractMRReply

DEFAULTMAXSIZE

Fields inherited from class jmri.jmrix.AbstractMessage

_dataChars, _nDataChars

Constructor Summary

GridConnectReply()

GridConnectReply(String s)

Method Summary

CanReply	createReply()
int	getByte(int b) Get a hex data byte from the message Data bytes are encoded as two ASCII hex digits starting at byte 7 of the message.
int	getElement(int n)
int	getHeader() Get the CAN header by using chars from 2 to up to 9 Right justify standard headers that had 4 digits
int	getNumBytes() Get the number of data bytes
int	getNumDataElements()
boolean	isExtended()
boolean	isRtr()
int	maxSize()
void	setData(int[] d)
void	setElement(int n, int v)
void	setNumDataElements(int n)
protected int	skipPrefix(int index)

Methods inherited from class jmri.jmrix.AbstractMRReply

flush, getOpCode, isBinary, isRetransmittableErrorMsg, isUnsolicited, match, pollValue, setBinary, setOpCode, setUnsolicited, skipWhiteSpace, toString, value

Methods inherited from class java.lang.Object

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

Constructor Detail

GridConnectReply

public GridConnectReply()

GridConnectReply

public GridConnectReply(String s)

Method Detail

createReply

public CanReply createReply()

skipPrefix

protected int skipPrefix(int index)

Specified by:

skipPrefix in class AbstractMRReply

getNumDataElements

public int getNumDataElements()

Specified by:

getNumDataElements in interface Message

Overrides:

getNumDataElements in class AbstractMessage

setNumDataElements

public void setNumDataElements(int n)

getElement

public int getElement(int n)

Specified by:

getElement in interface Message

Overrides:

getElement in class AbstractMessage

setElement

public void setElement(int n,
                       int v)

Specified by:

setElement in interface Message

Overrides:

setElement in class AbstractMRReply

isExtended

public boolean isExtended()

isRtr

public boolean isRtr()

maxSize

public int maxSize()

Overrides:

maxSize in class AbstractMRReply

setData

public void setData(int[] d)

getHeader

public int getHeader()

Get the CAN header by using chars from 2 to up to 9 Right justify standard headers that had 4 digits

Returns:

the CAN header as an int

getNumBytes

public int getNumBytes()

Get the number of data bytes

Returns:

int the number of bytes

getByte

public int getByte(int b)

Get a hex data byte from the message

Data bytes are encoded as two ASCII hex digits starting at byte 7 of the message.

Parameters:

b - The byte offset (0 - 7)

Returns:

The value