diff --git a/spring-context/src/main/java/org/springframework/scheduling/concurrent/ForkJoinPoolFactoryBean.java b/spring-context/src/main/java/org/springframework/scheduling/concurrent/ForkJoinPoolFactoryBean.java index fe30fd108be..d74f1e1f9af 100644 --- a/spring-context/src/main/java/org/springframework/scheduling/concurrent/ForkJoinPoolFactoryBean.java +++ b/spring-context/src/main/java/org/springframework/scheduling/concurrent/ForkJoinPoolFactoryBean.java @@ -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"); * you may not use this file except in compliance with the License. @@ -17,6 +17,7 @@ package org.springframework.scheduling.concurrent; import java.util.concurrent.ForkJoinPool; +import java.util.concurrent.TimeUnit; import org.springframework.beans.factory.DisposableBean; import org.springframework.beans.factory.FactoryBean; @@ -24,7 +25,7 @@ import org.springframework.beans.factory.InitializingBean; /** * A Spring {@link FactoryBean} that builds and exposes a preconfigured {@link ForkJoinPool}. - * May be used on Java 7 as well as on Java 6 with {@code jsr166.jar} on the classpath + * May be used on Java 7 and 8 as well as on Java 6 with {@code jsr166.jar} on the classpath * (ideally on the VM bootstrap classpath). * *
For details on the ForkJoinPool API and its use with RecursiveActions, see the
@@ -38,6 +39,8 @@ import org.springframework.beans.factory.InitializingBean;
*/
public class ForkJoinPoolFactoryBean implements FactoryBean Default is "false", creating a local {@link ForkJoinPool} instance based on the
+ * {@link #setParallelism "parallelism"}, {@link #setThreadFactory "threadFactory"},
+ * {@link #setUncaughtExceptionHandler "uncaughtExceptionHandler"} and
+ * {@link #setAsyncMode "asyncMode"} properties on this FactoryBean.
+ * NOTE: Setting this flag to "true" effectively ignores all other
+ * properties on this FactoryBean, reusing the shared common JDK {@link ForkJoinPool}
+ * instead. This is a fine choice on JDK 8 but does remove the application's ability
+ * to customize ForkJoinPool behavior, in particular the use of custom threads.
+ * @since 3.2
+ * @see java.util.concurrent.ForkJoinPool#commonPool()
+ */
+ public void setCommonPool(boolean commonPool) {
+ this.commonPool = commonPool;
+ }
+
/**
* Specify the parallelism level. Default is {@link Runtime#availableProcessors()}.
*/
@@ -82,9 +104,30 @@ public class ForkJoinPoolFactoryBean implements FactoryBean By default, this ForkJoinPool won't wait for the termination of tasks at all.
+ * It will continue to fully execute all ongoing tasks as well as all remaining
+ * tasks in the queue, in parallel to the rest of the container shutting down.
+ * In contrast, if you specify an await-termination period using this property,
+ * this executor will wait for the given time (max) for the termination of tasks.
+ * Note that this feature works for the {@link #setCommonPool "commonPool"}
+ * mode as well. The underlying ForkJoinPool won't actually terminate in that
+ * case but will wait for all tasks to terminate.
+ * @see java.util.concurrent.ForkJoinPool#shutdown()
+ * @see java.util.concurrent.ForkJoinPool#awaitTermination
+ */
+ public void setAwaitTerminationSeconds(int awaitTerminationSeconds) {
+ this.awaitTerminationSeconds = awaitTerminationSeconds;
+ }
+
public void afterPropertiesSet() {
- this.forkJoinPool =
- new ForkJoinPool(this.parallelism, this.threadFactory, this.uncaughtExceptionHandler, this.asyncMode);
+ this.forkJoinPool = (this.commonPool ? ForkJoinPool.commonPool() :
+ new ForkJoinPool(this.parallelism, this.threadFactory, this.uncaughtExceptionHandler, this.asyncMode));
}
@@ -102,7 +145,18 @@ public class ForkJoinPoolFactoryBean implements FactoryBean