org.jclouds.concurrent

Class DynamicThreadPoolExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.jclouds.concurrent.DynamicThreadPoolExecutor

All Implemented Interfaces:

Executor, ExecutorService

public class DynamicThreadPoolExecutor
extends ThreadPoolExecutor

An ExecutorService that executes each submitted task using one of possibly several pooled threads, normally configured using DynamicExecutors factory methods.

Author:

kimchy (shay.banon)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DynamicThreadPoolExecutor.DynamicQueue<E> Much like a SynchronousQueue which acts as a rendezvous channel.
static class	DynamicThreadPoolExecutor.ForceQueuePolicy A handler for rejected tasks that adds the specified element to this queue, waiting if necessary for space to become available.
static class	DynamicThreadPoolExecutor.TimedBlockingPolicy A handler for rejected tasks that inserts the specified element into this queue, waiting if necessary up to the specified wait time for space to become available.

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

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

Constructor Summary

Constructors

Constructor and Description
DynamicThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	afterExecute(Runnable r, Throwable t)
protected void	beforeExecute(Thread t, Runnable r)
int	getActiveCount()

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

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

Constructor Detail

DynamicThreadPoolExecutor

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

Method Detail

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