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ThreadPoolExecutorFactoryBean exposes "createExecutor" method for custom ThreadPoolExecutor subclasses 

Issue: SPR-9435
This commit is contained in:
Juergen Hoeller 2013-01-23 15:25:07 +01:00 committed by unknown
parent 4dde7c4c16
commit a425d717b7
1 changed files with 25 additions and 5 deletions
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30
spring-context/src/main/java/org/springframework/scheduling/concurrent/ThreadPoolExecutorFactoryBean.java
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@ -1,5 +1,5 @@
/* /*
* Copyright 2002-2012 the original author or authors. * Copyright 2002-2013 the original author or authors.
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. * you may not use this file except in compliance with the License.
@ -126,7 +126,7 @@ public class ThreadPoolExecutorFactoryBean extends ExecutorConfigurationSupport
* <p>Default is "false", exposing the raw executor as bean reference. * <p>Default is "false", exposing the raw executor as bean reference.
* Switch this flag to "true" to strictly prevent clients from * Switch this flag to "true" to strictly prevent clients from
* modifying the executor's configuration. * modifying the executor's configuration.
* @see java.util.concurrent.Executors#unconfigurableScheduledExecutorService * @see java.util.concurrent.Executors#unconfigurableExecutorService
*/ */
public void setExposeUnconfigurableExecutor(boolean exposeUnconfigurableExecutor) { public void setExposeUnconfigurableExecutor(boolean exposeUnconfigurableExecutor) {
this.exposeUnconfigurableExecutor = exposeUnconfigurableExecutor; this.exposeUnconfigurableExecutor = exposeUnconfigurableExecutor;
@ -137,9 +137,8 @@ public class ThreadPoolExecutorFactoryBean extends ExecutorConfigurationSupport
ThreadFactory threadFactory, RejectedExecutionHandler rejectedExecutionHandler) { ThreadFactory threadFactory, RejectedExecutionHandler rejectedExecutionHandler) {
BlockingQueue<Runnable> queue = createQueue(this.queueCapacity); BlockingQueue<Runnable> queue = createQueue(this.queueCapacity);
ThreadPoolExecutor executor = new ThreadPoolExecutor( ThreadPoolExecutor executor = createExecutor(this.corePoolSize, this.maxPoolSize,
this.corePoolSize, this.maxPoolSize, this.keepAliveSeconds, TimeUnit.SECONDS, this.keepAliveSeconds, queue, threadFactory, rejectedExecutionHandler);
queue, threadFactory, rejectedExecutionHandler);
if (this.allowCoreThreadTimeOut) { if (this.allowCoreThreadTimeOut) {
executor.allowCoreThreadTimeOut(true); executor.allowCoreThreadTimeOut(true);
} }
@ -151,6 +150,27 @@ public class ThreadPoolExecutorFactoryBean extends ExecutorConfigurationSupport
return executor; return executor;
} }
/**
* Create a new instance of {@link ThreadPoolExecutor} or a subclass thereof.
* <p>The default implementation creates a standard {@link ThreadPoolExecutor}.
* Can be overridden to provide custom {@link ThreadPoolExecutor} subclasses.
* @param corePoolSize the specified core pool size
* @param maxPoolSize the specified maximum pool size
* @param keepAliveSeconds the specified keep-alive time in seconds
* @param queue the BlockingQueue to use
* @param threadFactory the ThreadFactory to use
* @param rejectedExecutionHandler the RejectedExecutionHandler to use
* @return a new ThreadPoolExecutor instance
* @see #afterPropertiesSet()
*/
protected ThreadPoolExecutor createExecutor(
int corePoolSize, int maxPoolSize, int keepAliveSeconds, BlockingQueue<Runnable> queue,
ThreadFactory threadFactory, RejectedExecutionHandler rejectedExecutionHandler) {
return new ThreadPoolExecutor(corePoolSize, maxPoolSize,
keepAliveSeconds, TimeUnit.SECONDS, queue, threadFactory, rejectedExecutionHandler);
}
/** /**
* Create the BlockingQueue to use for the ThreadPoolExecutor. * Create the BlockingQueue to use for the ThreadPoolExecutor.
* <p>A LinkedBlockingQueue instance will be created for a positive * <p>A LinkedBlockingQueue instance will be created for a positive