isc.sensor
Class SessionTimer

java.lang.Object
  java.lang.Thread
      isc.sensor.SessionTimer

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

TCPSessionTimer, UDPSessionTimer

public class SessionTimer
extends java.lang.Thread

The Session Timers (TCP/UDP) runs in a background thread a periodically check each session for it's close state

Author:

John Casey
Project: DNA_sensor - Aug 12, 2005

Nested Class Summary

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

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

Field Summary

protected boolean	finish Flag to determine when server is exiting
protected static org.apache.log4j.Logger	log log4j
protected long	packetTime Current packet clock time
protected AppProperties	props Application properties
protected long	sleepTime sleep loop time
protected long	timeOut Time period to close sessions that haven't seen any more packets

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

SessionTimer()

Method Summary

boolean	finished() Check if the process is in exiting state
long	getPacketTime() Get the current packet clock time
void	notifyProc() Notify the sleeping thread of an event
void	setFinish() Signal to the end of process and finish all work
void	setPacketTime(long ptime) Set the packet time clock to current packet
protected void	waitProc() Wait on mutex and timeout

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, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

sleepTime

protected long sleepTime

sleep loop time

timeOut

protected long timeOut

Time period to close sessions that haven't seen any more packets

finish

protected volatile boolean finish

Flag to determine when server is exiting

packetTime

protected volatile long packetTime

Current packet clock time

props

protected AppProperties props

Application properties

log

protected static org.apache.log4j.Logger log

log4j

Constructor Detail

SessionTimer

public SessionTimer()

Method Detail

setPacketTime

public void setPacketTime(long ptime)

Set the packet time clock to current packet

Parameters:

ptime - The packet time in milliseconds

getPacketTime

public long getPacketTime()

Get the current packet clock time

Returns:

The current packet clock time in milliseconds

waitProc

protected void waitProc()

Wait on mutex and timeout

setFinish

public void setFinish()

Signal to the end of process and finish all work

finished

public boolean finished()

Check if the process is in exiting state

Returns:

True if the process is exiting

notifyProc

public void notifyProc()

Notify the sleeping thread of an event