Package nl.vpro.util

Class ThreadPools

java.lang.Object

nl.vpro.util.ThreadPools

public final class ThreadPools
extends Object

Utilities related to ThreadPools Perhaps this can be deprecated in favour of ForkJoinPool.commonPool()?

Since:

1.5

Author:

Michiel Meeuwissen

Field Summary

Fields

Modifier and Type	Field	Description
static ScheduledExecutorService	backgroundExecutor	A scheduled executor service with fixed pool size, so should be used to schedule short-lived background tasks only.
static ThreadPoolExecutor	copyExecutor	An executor service used for 'copy' threads.
static ThreadPoolExecutor	longBackgroundExecutor	An executor service used for relatively long-lived background jobs.
static ThreadPoolExecutor	startUpExecutor	An executor service used for threads running during bootstrap of the application.
static ThreadGroup	THREAD_GROUP

Method Summary

Modifier and Type	Method	Description
static ThreadFactory	createThreadFactory(String namePrefix, boolean daemon, int priority)
static ThreadFactory	createThreadFactory(ThreadGroup threadGroup, String namePrefix, boolean daemon, int priority)
static void	shutdown()

Methods inherited from class java.lang.Object

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

Field Detail

THREAD_GROUP

public static final ThreadGroup THREAD_GROUP

copyExecutor

public static final ThreadPoolExecutor copyExecutor

An executor service used for 'copy' threads. Mainly in Copier, but it can be used for similar processes.

These may be quite long-lived thread, performing simple jobs like copying streams.

longBackgroundExecutor

public static final ThreadPoolExecutor longBackgroundExecutor

An executor service used for relatively long-lived background jobs.

These may be quite long-lived thread, performing more complex jobs like complicated SQL queries.

Since:

3.0

backgroundExecutor

public static final ScheduledExecutorService backgroundExecutor

A scheduled executor service with fixed pool size, so should be used to schedule short-lived background tasks only.

startUpExecutor

public static final ThreadPoolExecutor startUpExecutor

An executor service used for threads running during bootstrap of the application. Core size is 0, so that after a few minutes (when all is up) all threads will be shut down.

Method Detail

createThreadFactory

public static ThreadFactory createThreadFactory(String namePrefix,
                                                boolean daemon,
                                                int priority)

createThreadFactory

public static ThreadFactory createThreadFactory(ThreadGroup threadGroup,
                                                String namePrefix,
                                                boolean daemon,
                                                int priority)

shutdown

public static void shutdown()