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Add support for removeOnCancelPolicy

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This change removes the recently added SockJsThreadPoolTaskScheduler
and instead builds support for the removeOnCancelPolicy property in
ThreadPoolTaskScheduler and ScheduledExecutorFactoryBean.

Issue: SPR-11918
This commit is contained in:
Rossen Stoyanchev
2014-06-29 14:28:52 -04:00
parent 7da3fb4ce6
commit 7441f23012
7 changed files with 87 additions and 78 deletions
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32
spring-context/src/main/java/org/springframework/scheduling/concurrent/ScheduledExecutorFactoryBean.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 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.
@@ -24,9 +24,11 @@ import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.lang.UsesJava7;
import org.springframework.scheduling.support.DelegatingErrorHandlingRunnable;
import org.springframework.scheduling.support.TaskUtils;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.util.ObjectUtils;
/**
@@ -56,6 +58,7 @@ import org.springframework.util.ObjectUtils;
* @author Juergen Hoeller
* @since 2.0
* @see #setPoolSize
* @see #setRemoveOnCancelPolicy(boolean)
* @see #setThreadFactory
* @see ScheduledExecutorTask
* @see java.util.concurrent.ScheduledExecutorService
@@ -65,8 +68,15 @@ import org.springframework.util.ObjectUtils;
public class ScheduledExecutorFactoryBean extends ExecutorConfigurationSupport
implements FactoryBean<ScheduledExecutorService> {
// Check for setRemoveOnCancelPolicy method - available on JDK 7 and higher
private static boolean hasRemoveOnCancelPolicyMethod = ClassUtils.hasMethod(
ScheduledThreadPoolExecutor.class, "setRemoveOnCancelPolicy", boolean.class);
private int poolSize = 1;
private Boolean removeOnCancelPolicy;
private ScheduledExecutorTask[] scheduledExecutorTasks;
private boolean continueScheduledExecutionAfterException = false;
@@ -85,6 +95,15 @@ public class ScheduledExecutorFactoryBean extends ExecutorConfigurationSupport
this.poolSize = poolSize;
}
/**
* Set the same property on ScheduledExecutorService available in JDK 1.7 or
* higher. This property is ignored on JDK 1.6.
* Default is false.
*/
public void setRemoveOnCancelPolicy(boolean removeOnCancelPolicy) {
this.removeOnCancelPolicy = removeOnCancelPolicy;
}
/**
* Register a list of ScheduledExecutorTask objects with the ScheduledExecutorService
* that this FactoryBean creates. Depending on each ScheduledExecutorTask's settings,
@@ -130,6 +149,10 @@ public class ScheduledExecutorFactoryBean extends ExecutorConfigurationSupport
ScheduledExecutorService executor =
createExecutor(this.poolSize, threadFactory, rejectedExecutionHandler);
if (executor instanceof ScheduledThreadPoolExecutor) {
configureRemoveOnCancelPolicy(((ScheduledThreadPoolExecutor) executor));
}
// Register specified ScheduledExecutorTasks, if necessary.
if (!ObjectUtils.isEmpty(this.scheduledExecutorTasks)) {
registerTasks(this.scheduledExecutorTasks, executor);
@@ -199,6 +222,13 @@ public class ScheduledExecutorFactoryBean extends ExecutorConfigurationSupport
new DelegatingErrorHandlingRunnable(task.getRunnable(), TaskUtils.LOG_AND_PROPAGATE_ERROR_HANDLER));
}
@UsesJava7 // guard setting removeOnCancelPolicy (safe with 1.6 due to hasRemoveOnCancelPolicyMethod check)
private void configureRemoveOnCancelPolicy(ScheduledThreadPoolExecutor service) {
if (hasRemoveOnCancelPolicyMethod && this.removeOnCancelPolicy != null) {
service.setRemoveOnCancelPolicy(true);
}
}
@Override
public ScheduledExecutorService getObject() {

46
spring-context/src/main/java/org/springframework/scheduling/concurrent/ThreadPoolTaskScheduler.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 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.
@@ -31,11 +31,13 @@ import java.util.concurrent.TimeUnit;
import org.springframework.core.task.AsyncListenableTaskExecutor;
import org.springframework.core.task.TaskRejectedException;
import org.springframework.lang.UsesJava7;
import org.springframework.scheduling.SchedulingTaskExecutor;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.scheduling.Trigger;
import org.springframework.scheduling.support.TaskUtils;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.util.ErrorHandler;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.util.concurrent.ListenableFutureTask;
@@ -48,6 +50,7 @@ import org.springframework.util.concurrent.ListenableFutureTask;
* @author Mark Fisher
* @since 3.0
* @see #setPoolSize
* @see #setRemoveOnCancelPolicy(boolean)
* @see #setThreadFactory
* @see #setErrorHandler
*/
@@ -55,8 +58,15 @@ import org.springframework.util.concurrent.ListenableFutureTask;
public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
implements AsyncListenableTaskExecutor, SchedulingTaskExecutor, TaskScheduler {
// Check for setRemoveOnCancelPolicy method - available on JDK 7 and higher
private static boolean hasRemoveOnCancelPolicyMethod = ClassUtils.hasMethod(
ScheduledThreadPoolExecutor.class, "setRemoveOnCancelPolicy", boolean.class);
private volatile int poolSize = 1;
private volatile Boolean removeOnCancelPolicy;
private volatile ScheduledExecutorService scheduledExecutor;
private volatile ErrorHandler errorHandler;
@@ -75,6 +85,27 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
}
}
/**
* Set the same property on ScheduledExecutorService available in JDK 1.7 or
* higher. This property is ignored on JDK 1.6.
* Default is false.
* <p><b>This setting can be modified at runtime, for example through JMX.</b>
*/
@UsesJava7 // guard setting removeOnCancelPolicy (safe with 1.6 due to hasRemoveOnCancelPolicyMethod check)
public void setRemoveOnCancelPolicy(boolean removeOnCancelPolicy) {
this.removeOnCancelPolicy = removeOnCancelPolicy;
if (this.scheduledExecutor instanceof ScheduledThreadPoolExecutor) {
configureRemoveOnCancelPolicy((ScheduledThreadPoolExecutor) this.scheduledExecutor);
}
}
@UsesJava7 // guard setting removeOnCancelPolicy (safe with 1.6 due to hasRemoveOnCancelPolicyMethod check)
private void configureRemoveOnCancelPolicy(ScheduledThreadPoolExecutor service) {
if (hasRemoveOnCancelPolicyMethod && this.removeOnCancelPolicy != null) {
service.setRemoveOnCancelPolicy(true);
}
}
/**
* Set a custom {@link ErrorHandler} strategy.
*/
@@ -88,6 +119,11 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
ThreadFactory threadFactory, RejectedExecutionHandler rejectedExecutionHandler) {
this.scheduledExecutor = createExecutor(this.poolSize, threadFactory, rejectedExecutionHandler);
if (this.scheduledExecutor instanceof ScheduledThreadPoolExecutor) {
configureRemoveOnCancelPolicy(((ScheduledThreadPoolExecutor) this.scheduledExecutor));
}
return this.scheduledExecutor;
}
@@ -145,6 +181,14 @@ public class ThreadPoolTaskScheduler extends ExecutorConfigurationSupport
return getScheduledThreadPoolExecutor().getPoolSize();
}
/**
* Return the current setting of removeOnCancelPolicy.
* <p>Requires an underlying {@link ScheduledThreadPoolExecutor} and JDK 1.7+.
*/
public boolean isRemoveOnCancelPolicy() {
return this.removeOnCancelPolicy;
}
/**
* Return the number of currently active threads.
* <p>Requires an underlying {@link ScheduledThreadPoolExecutor}.