Package lazyj

Class ThreadsMonitor

java.lang.Object

java.lang.Thread

lazyj.ThreadsMonitor

All Implemented Interfaces:

Runnable

public final class ThreadsMonitor
extends Thread

This class is used to monitor servlet threads, killing the ones that run for longer than it was specified. See ExtendedServlet.getMaxRunTime() for more information on how to modify the maximum run time for a servlet.

Since:

2006-10-04

Author:

costing

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

Modifier and Type	Method	Description
static void	register(lazyj.BoundedThreadContainer btc)	Register a thread that must be allowed to run but for a limited amount of time.
void	run()	The monitoring thread, takes the next thread (servlet) that ran for longer than expected and kills it
static void	unregister(lazyj.BoundedThreadContainer btc)	Remove a previously added wrapper.

Methods inherited from class java.lang.Thread

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

Methods inherited from class java.lang.Object

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

Method Details

run

public void run()

The monitoring thread, takes the next thread (servlet) that ran for longer than expected and kills it

Specified by:

run in interface Runnable

Overrides:

run in class Thread

register

public static void register(lazyj.BoundedThreadContainer btc)

Register a thread that must be allowed to run but for a limited amount of time. This is used by the ExtendedServlet wrapper to keep under control the servlets, but you could use it for any other thread.

Parameters:

btc - the wrapper for the thread to be monitored

unregister

public static void unregister(lazyj.BoundedThreadContainer btc)

Remove a previously added wrapper. Use this when the thread correctly finishes the work. You should explicitly call this when the work is done because otherwise you will probably kill something else that could be running later under that thread, and you don't want this, right? :)

Parameters:

btc -