edu.washington.cs.rfid.gateway
Class ReaderGateway

java.lang.Object
  java.lang.Thread
      edu.washington.cs.rfid.gateway.ReaderGateway

All Implemented Interfaces:

ReaderConnectionListener, RFIDSignalListener, java.lang.Runnable

public class ReaderGateway
extends java.lang.Thread
implements ReaderConnectionListener, RFIDSignalListener

The reader gateway. The gateway connects to a set of readers, receives streams of compressed TREs from the reader, and forwards the aggregated streams to the RFID cleaning services.

Author:

Evan

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

ReaderGateway(ReaderGatewayParameters params)
Creates a new ReaderGateway with the specified parameters.

Method Summary

void	addListener(ReaderGatewayListener l) Adds a ReaderGatewayListener to the list of listeners.
boolean	handle(java.lang.String s) The handle method from interface RFIDSignalHandler
static void	main(java.lang.String[] args) Parses command line arguments and config file, then creates and launches a new ReaderGateway.
void	newMsg(java.lang.String msg) The newMsg method from the ReaderConnectionListener interface.
void	newTRE(TRE t) The newTRE method from the ReaderConnectionListener interface.
void	run() Main loop for processing TREs.
void	shutdown() Gracefully shuts down the ReaderGateway.
static void	usage() Prints a usage message for the reader gateway and then exits.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ReaderGateway

public ReaderGateway(ReaderGatewayParameters params)

Creates a new ReaderGateway with the specified parameters.

Parameters:

params - The parameters for creating this ReaderGateway

Method Detail

handle

public boolean handle(java.lang.String s)

The handle method from interface RFIDSignalHandler

Specified by:

handle in interface RFIDSignalListener

Parameters:

s - The signal to handle

Returns:

True if successful, false o/w.

shutdown

public void shutdown()

Gracefully shuts down the ReaderGateway.

addListener

public void addListener(ReaderGatewayListener l)

Adds a ReaderGatewayListener to the list of listeners.

Parameters:

l - The ReaderGatewayListener to add

newTRE

public void newTRE(TRE t)

The newTRE method from the ReaderConnectionListener interface. Handles a newly received TRE by inserting it in the TRE queue.

Specified by:

newTRE in interface ReaderConnectionListener

Parameters:

t - The new TRE

newMsg

public void newMsg(java.lang.String msg)

The newMsg method from the ReaderConnectionListener interface. Handles a newly message by inserting it in the message queue.

Specified by:

newMsg in interface ReaderConnectionListener

Parameters:

msg - The new message

run

public void run()

Main loop for processing TREs.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

usage

public static void usage()

Prints a usage message for the reader gateway and then exits.

main

public static void main(java.lang.String[] args)

Parses command line arguments and config file, then creates and launches a new ReaderGateway.

Parameters:

args - The command line arguments