com.debianmirror.server
Class WorkerCache

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--com.debianmirror.server.WorkerCache

All Implemented Interfaces:

java.lang.Runnable

public class WorkerCache

extends java.lang.Thread

The WorkerCache hold a bunch of already started Worker threads. This way the delay of creating a new thread is minimized. It also controls how many Worker threads are running concurrently.

Author:

E01 - Tobias Hertkorn, Jonas Jagerhok, Jamie Fitz-Gerald

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

WorkerCache(WorkerImplFactory factory)
Creates a new WorkerCache.

Method Summary

void	addWorker(Worker worker) Inserts the given Worker (back) into this WorkerCache.
Worker	getWorker() Returns an idle worker from the workerList.
void	killCache() Kills the cache gracefully.
void	run() Main method of the thread.
void	setMaxIdleWorkers(int mIW) Sets the maxIdleWorkers.
void	setMinIdleWorkers(int mIW) Sets the minIdleWorkers.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, 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

Constructor Detail

WorkerCache

public WorkerCache(WorkerImplFactory factory)

Creates a new WorkerCache. This WorkerCache will employ Workers using the WorkerImplFactory.

Parameters:

factory -

Method Detail

setMinIdleWorkers

public void setMinIdleWorkers(int mIW)

Sets the minIdleWorkers.

Parameters:

mIW - the desired numbers of minimal idleWorkers.

setMaxIdleWorkers

public void setMaxIdleWorkers(int mIW)

Sets the maxIdleWorkers.

getWorker

public Worker getWorker()

Returns an idle worker from the workerList.

Returns:

an idle worker

addWorker

public void addWorker(Worker worker)

Inserts the given Worker (back) into this WorkerCache.
That is if the WorkerCache is not full yet.
Mostly used by the Worker after it is done with the assigned work.

killCache

public void killCache()

Kills the cache gracefully.

run

public void run()

Main method of the thread. When started it creates the initial workers.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread