org.elasticsearch.common.util.concurrent

Class PrioritizedEsThreadPoolExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor

org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor

All Implemented Interfaces:

Executor, ExecutorService

public class PrioritizedEsThreadPoolExecutor
extends EsThreadPoolExecutor

A prioritizing executor which uses a priority queue as a work queue. The jobs that will be submitted will be treated as PrioritizedRunnable and/or PrioritizedCallable, those tasks that are not instances of these two will be wrapped and assign a default Priority.NORMAL priority.

Note, if two tasks have the same priority, the first to arrive will be executed first (FIFO style).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PrioritizedEsThreadPoolExecutor.Pending

Nested classes/interfaces inherited from class org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor

EsThreadPoolExecutor.ShutdownListener

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

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

Method Summary

Modifier and Type	Method and Description
protected void	afterExecute(Runnable r, Throwable t)
protected void	beforeExecute(Thread t, Runnable r)
void	execute(Runnable command)
void	execute(Runnable command, ScheduledExecutorService timer, TimeValue timeout, Runnable timeoutCallback)
TimeValue	getMaxTaskWaitTime() Returns the waiting time of the first task in the queue
int	getNumberOfPendingTasks()
PrioritizedEsThreadPoolExecutor.Pending[]	getPending()
protected <T> RunnableFuture<T>	newTaskFor(Callable<T> callable)
protected <T> RunnableFuture<T>	newTaskFor(Runnable runnable, T value)

Methods inherited from class org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor

shutdown, terminated, toString

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

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

Methods inherited from class java.util.concurrent.AbstractExecutorService

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

Methods inherited from class java.lang.Object

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

Method Detail

getPending

public PrioritizedEsThreadPoolExecutor.Pending[] getPending()

getNumberOfPendingTasks

public int getNumberOfPendingTasks()

getMaxTaskWaitTime

public TimeValue getMaxTaskWaitTime()

Returns the waiting time of the first task in the queue

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

execute

public void execute(Runnable command,
                    ScheduledExecutorService timer,
                    TimeValue timeout,
                    Runnable timeoutCallback)

execute

public void execute(Runnable command)

Specified by:

execute in interface Executor

Overrides:

execute in class EsThreadPoolExecutor

newTaskFor

protected <T> RunnableFuture<T> newTaskFor(Runnable runnable,
                                           T value)

Overrides:

newTaskFor in class AbstractExecutorService

newTaskFor

protected <T> RunnableFuture<T> newTaskFor(Callable<T> callable)

Overrides:

newTaskFor in class AbstractExecutorService