lejos.nxt.comm
Class LCPResponder

java.lang.Object
  java.lang.Thread
      lejos.nxt.comm.LCPResponder

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

LCPBTResponder

public class LCPResponder
extends Thread

Support for LCP commands

Author:

Lawrie Griffiths/Andy Shaw

Field Summary

protected NXTConnection	conn
protected NXTCommConnector	connector
protected boolean	running

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

LCPResponder(NXTCommConnector connector)
Create a Responder using the provided connector The connector is used to create the listening connection used to accept remote commands.

Method Summary

protected int	command(byte[] inMsg, int len, byte[] reply) Process the actual command Default action is to call the LCP object to emulate the command
protected void	disconnect() Method called to disconnect the responder connect.
protected void	postCommand(byte[] inMsg, int inLen, byte[] replyMsg, int replyLen)
protected int	preCommand(byte[] inMsg, int len) Method called with a newly read command, before it is processed.
void	run() When an object implementing interface Runnable is used to create a thread, starting the thread causes the object's run method to be called in that separately executing thread.
void	shutdown() Terminate the responder.
protected void	waitConnect() Method called when the responder is waiting for a new connection.

Methods inherited from class java.lang.Thread

currentThread, getPriority, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, setDaemon, setPriority, sleep, start, yield

Methods inherited from class java.lang.Object

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

Field Detail

connector

protected NXTCommConnector connector

conn

protected NXTConnection conn

running

protected boolean running

Constructor Detail

LCPResponder

public LCPResponder(NXTCommConnector connector)

Create a Responder using the provided connector The connector is used to create the listening connection used to accept remote commands.

Parameters:

connector -

Method Detail

waitConnect

protected void waitConnect()

Method called when the responder is waiting for a new connection. Default action is to wait for the new connection and return.

disconnect

protected void disconnect()

Method called to disconnect the responder connect. Default action is to close the underlying connection object.

preCommand

protected int preCommand(byte[] inMsg,
                         int len)

Method called with a newly read command, before it is processed. Default action is to detect invalid commands and if detected to drop the connection.

Parameters:

inMsg - Newly read command

len - length of the command

Returns:

the length of the command

command

protected int command(byte[] inMsg,
                      int len,
                      byte[] reply)

Process the actual command Default action is to call the LCP object to emulate the command

Parameters:

inMsg - The command bytes

len - length of the command

reply - bytes to send back in response to the command

Returns:

length of the reply

postCommand

protected void postCommand(byte[] inMsg,
                           int inLen,
                           byte[] replyMsg,
                           int replyLen)

run

public void run()

Description copied from interface: Runnable

When an object implementing interface Runnable is used to create a thread, starting the thread causes the object's run method to be called in that separately executing thread.

Specified by:

run in interface Runnable

Overrides:

run in class Thread

shutdown

public void shutdown()

Terminate the responder. Abort any listening operation and close any open connections (this will also abort any current read requests).