Package jmri.jmrix.powerline.cp290

Class SpecificMessage

java.lang.Object

jmri.jmrix.AbstractMessage

jmri.jmrix.AbstractMRMessage

jmri.jmrix.powerline.SerialMessage

jmri.jmrix.powerline.cp290.SpecificMessage

All Implemented Interfaces:

Message

public class SpecificMessage
extends SerialMessage

Contains the data payload of a serial packet.

The transmission protocol can come in one of several forms:

• If the interlocked parameter is false (default), the packet is just sent. If the response length is not zero, a reply of that length is expected.
• If the interlocked parameter is true, the transmission will require a CRC interlock, which will be automatically added. (Design note: this is done to make sure that the messages remain atomic)

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	responseLength

Fields inherited from class jmri.jmrix.AbstractMRMessage

LONG_TIMEOUT, SHORT_TIMEOUT

Fields inherited from class jmri.jmrix.AbstractMessage

_dataChars, _nDataChars

Constructor Summary

Constructors

Constructor	Description
SpecificMessage(byte[] a, int l)	This ctor interprets the byte array as a sequence of characters to send.
SpecificMessage(int l)
SpecificMessage(java.lang.String m, int l)	This ctor interprets the String as the exact sequence to send, byte-for-byte.

Method Summary

Modifier and Type	Method	Description
int	getAddr()
static SpecificMessage	getAddress(int housecode, int devicecode)
static SpecificMessage	getAddressDim(int housecode, int devicecode, int dimcode)
static SpecificMessage	getFunction(int housecode, int function)
static SpecificMessage	getFunctionDim(int housecode, int function, int dimcode)
static SerialMessage	getPoll(int addr)
int	getResponseLength()
boolean	isPoll()
boolean	isXmt()
void	setResponseLength(int l)
(package private) int	startIndex()	Find 1st byte that's not 0xFF, or -1 if none
java.lang.String	toMonitorString()	Translate packet to text

Methods inherited from class jmri.jmrix.powerline.SerialMessage

getInterlocked, setInterlocked

Methods inherited from class jmri.jmrix.AbstractMRMessage

addIntAsFourHex, addIntAsThree, addIntAsThreeHex, addIntAsTwoHex, getNeededMode, getOpCode, getOpCodeHex, getRetries, getTimeout, isBinary, replyExpected, setBinary, setNeededMode, setOpCode, setRetries, setTimeout, toString

Methods inherited from class jmri.jmrix.AbstractMessage

equals, getElement, getNumDataElements, hashCode, setElement

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

responseLength

int responseLength

Constructor Detail

SpecificMessage

public SpecificMessage(int l)

SpecificMessage

public SpecificMessage(java.lang.String m,
                       int l)

This ctor interprets the String as the exact sequence to send, byte-for-byte.

Parameters:

m - message

l - response length in bytes

SpecificMessage

public SpecificMessage(byte[] a,
                       int l)

This ctor interprets the byte array as a sequence of characters to send.

Parameters:

a - Array of bytes to send

l - length of expected reply

Method Detail

startIndex

int startIndex()

Find 1st byte that's not 0xFF, or -1 if none

Returns:

-1 or index of first valid byte

toMonitorString

public java.lang.String toMonitorString()

Translate packet to text

Returns:

a human-readable representation of the message.

setResponseLength

public void setResponseLength(int l)

Overrides:

setResponseLength in class SerialMessage

getResponseLength

public int getResponseLength()

Overrides:

getResponseLength in class SerialMessage

isPoll

public boolean isPoll()

Overrides:

isPoll in class SerialMessage

isXmt

public boolean isXmt()

Overrides:

isXmt in class SerialMessage

getAddr

public int getAddr()

Overrides:

getAddr in class SerialMessage

getPoll

public static SerialMessage getPoll(int addr)

getAddress

public static SpecificMessage getAddress(int housecode,
                                         int devicecode)

getAddressDim

public static SpecificMessage getAddressDim(int housecode,
                                            int devicecode,
                                            int dimcode)

getFunctionDim

public static SpecificMessage getFunctionDim(int housecode,
                                             int function,
                                             int dimcode)

getFunction

public static SpecificMessage getFunction(int housecode,
                                          int function)