Package org.smartrplace.drivers.upnp.tools.exec

Class ScalingThreadPoolExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.smartrplace.drivers.upnp.tools.exec.ScalingThreadPoolExecutor

All Implemented Interfaces:

Executor, ExecutorService

public class ScalingThreadPoolExecutor
extends ThreadPoolExecutor

A ThreadPoolExecutor that actively increases the number of threads when new tasks come in, instead of waiting for the task queue to fill up. see https://github.com/kimchy/kimchy.github.com/blob/master/_posts/2008-11-23-juc-executorservice-gotcha.textile

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor

ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy

Constructor Summary

Constructors

Constructor	Description
ScalingThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue)
ScalingThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory factory)

Method Summary

Modifier and Type	Method	Description
protected void	afterExecute(Runnable r, Throwable t)
protected void	beforeExecute(Thread t, Runnable r)
int	getActiveCount()
static ExecutorService	newScalingThreadPool(int min, int max, long keepAliveTime)
static ExecutorService	newScalingThreadPool(int min, int max, long keepAliveTime, ThreadFactory factory)

Methods inherited from class java.util.concurrent.AbstractExecutorService

invokeAll, invokeAll, invokeAny, invokeAny, newTaskFor, newTaskFor, submit, submit, submit

Methods inherited from class java.lang.Object

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

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, execute, finalize, getCompletedTaskCount, getCorePoolSize, getKeepAliveTime, getLargestPoolSize, getMaximumPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, shutdown, shutdownNow, terminated, toString

Constructor Detail

ScalingThreadPoolExecutor

public ScalingThreadPoolExecutor(int corePoolSize,
                                 int maximumPoolSize,
                                 long keepAliveTime,
                                 TimeUnit unit,
                                 BlockingQueue<Runnable> workQueue)

ScalingThreadPoolExecutor

public ScalingThreadPoolExecutor(int corePoolSize,
                                 int maximumPoolSize,
                                 long keepAliveTime,
                                 TimeUnit unit,
                                 BlockingQueue<Runnable> workQueue,
                                 ThreadFactory factory)

Method Detail

newScalingThreadPool

public static ExecutorService newScalingThreadPool(int min,
                                                   int max,
                                                   long keepAliveTime)

newScalingThreadPool

public static ExecutorService newScalingThreadPool(int min,
                                                   int max,
                                                   long keepAliveTime,
                                                   ThreadFactory factory)

getActiveCount

public int getActiveCount()

Overrides:

getActiveCount in class ThreadPoolExecutor

beforeExecute

protected void beforeExecute(Thread t,
                             Runnable r)

Overrides:

beforeExecute in class ThreadPoolExecutor

afterExecute

protected void afterExecute(Runnable r,
                            Throwable t)

Overrides:

afterExecute in class ThreadPoolExecutor