Package jmri.jmrix.direct

Class TrafficController

java.lang.Object

jmri.jmrix.direct.TrafficController

All Implemented Interfaces:

CommandStation

public class TrafficController
extends Object
implements CommandStation

Converts Stream-based I/O to/from NMRA packets and controls sending to the direct interface.

This is much simpler than many other "TrafficHandler" classes, because

• It's not handling mode information, or even any information back from the device; it's just sending.
• It can work with the direct packets.

This actually bears more similarity to a pure implementation of the CommandStation interface, which is where the real guts of it is. In particular, note that transmission is not a threaded operation.

Field Summary

Fields

Modifier and Type	Field	Description
protected DataInputStream	istream
protected OutputStream	ostream

Constructor Summary

Constructors

Constructor	Description
TrafficController(DirectSystemConnectionMemo memo)	Create a new Direct TrafficController instance.

Method Summary

Modifier and Type	Method	Description
void	connectPort(AbstractSerialPortController p)	Make connection to existing PortController object.
void	disconnectPort(AbstractSerialPortController p)	Break connection to existing PortController object.
String	getSystemPrefix()
String	getUserName()
boolean	sendPacket(byte[] packet, int repeats)	Send a specific packet to the rails.
boolean	status()

Methods inherited from class java.lang.Object

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

Methods inherited from interface jmri.CommandStation

sendAccSignalDecoderPkt, sendAltAccSignalDecoderPkt

Field Details

istream

protected DataInputStream istream

ostream

protected OutputStream ostream

Constructor Details

TrafficController

public TrafficController(DirectSystemConnectionMemo memo)

Create a new Direct TrafficController instance.

Parameters:

memo - system connection.

Method Details

sendPacket

public boolean sendPacket(byte[] packet,
 int repeats)

Send a specific packet to the rails.

Specified by:

sendPacket in interface CommandStation

Parameters:

packet - Byte array representing the packet, including the error-correction byte. Must not be null.

repeats - Number of times to repeat the transmission, but is ignored in the current implementation

Returns:

true if the operation succeeds, false otherwise.

status

public boolean status()

connectPort

public void connectPort(AbstractSerialPortController p)

Make connection to existing PortController object.

Parameters:

p - the controller to connect to

disconnectPort

public void disconnectPort(AbstractSerialPortController p)

Break connection to existing PortController object. Once broken, attempts to send via "message" member will fail.

Parameters:

p - the controller to disconnect from

getUserName

public String getUserName()

Specified by:

getUserName in interface CommandStation

getSystemPrefix

public String getSystemPrefix()

Specified by:

getSystemPrefix in interface CommandStation