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ForkJoinManagedExecutorService.java
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ForkJoinManagedExecutorService.java
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/*
* Copyright (c) 2010, 2018 Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2022, 2024 Payara Foundation and/or its affiliates.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.concurro;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;
import jakarta.enterprise.concurrent.ManagedExecutorService;
import jakarta.enterprise.concurrent.ManagedExecutors;
import jakarta.enterprise.concurrent.ManagedTask;
import jakarta.enterprise.concurrent.ManagedTaskListener;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicLong;
import org.glassfish.concurro.ManagedThreadFactoryImpl.WorkerThread;
import org.glassfish.concurro.internal.ManagedFutureTask;
import org.glassfish.concurro.internal.MultiManagedTaskListener;
/**
* Implementation of ManagedExecutorService interface. See
* {@code AbstractManagedExecutorService}.
*
* @author Luise Neto, Petr Aubrecht
*/
public class ForkJoinManagedExecutorService extends AbstractPlatformThreadExecutorService implements ManagedTaskListener {
// The adapter to be returned to the caller needs to have all the lifecycle
// methods disabled
protected final ManagedExecutorServiceAdapter adapter;
protected final ForkJoinPool executor;
final private Map<ManagedFutureTask<?>, Runnable> runningFutures = new ConcurrentHashMap<>();
private final AtomicLong taskCount = new AtomicLong();
private final AtomicLong tasksCompleted = new AtomicLong();
public ForkJoinManagedExecutorService(String name,
ManagedThreadFactoryImpl managedThreadFactory,
long hungTaskThreshold,
boolean longRunningTasks,
int maxPoolSize, long keepAliveTime,
TimeUnit keepAliveTimeUnit,
long threadLifeTime,
ContextServiceImpl contextService,
RejectPolicy rejectPolicy) {
super(name, managedThreadFactory, hungTaskThreshold, longRunningTasks,
contextService,
contextService != null ? contextService.getContextSetupProvider() : null,
rejectPolicy);
executor = new ForkJoinPool(maxPoolSize, this.managedThreadFactory, null, false);
adapter = new ManagedExecutorServiceAdapter(this);
}
public ForkJoinManagedExecutorService(String name,
ManagedThreadFactoryImpl managedThreadFactory,
long hungTaskThreshold,
boolean longRunningTasks,
int maxPoolSize, long keepAliveTime,
TimeUnit keepAliveTimeUnit,
long threadLifeTime,
int queueCapacity,
ContextServiceImpl contextService,
RejectPolicy rejectPolicy) {
this(name, managedThreadFactory, hungTaskThreshold, longRunningTasks,
maxPoolSize, keepAliveTime, keepAliveTimeUnit, threadLifeTime, contextService,
rejectPolicy);
}
@Override
public void execute(Runnable command) {
ManagedFutureTask<Void> task = getNewTaskFor(command, null);
task.submitted();
runningFutures.put(task, command);
executor.execute(task);
}
/**
* Returns an adapter for ManagedExecutorService instance which has its life
* cycle operations disabled.
*
* @return The ManagedExecutorService instance with life cycle operations
* disabled for use by application components.
*
*/
@Override
public ManagedExecutorServiceAdapter getAdapter() {
return adapter;
}
@Override
public ManagedExecutorService getExecutorForTaskListener() {
return adapter;
}
@Override
protected <V> ManagedFutureTask<V> getNewTaskFor(Runnable r, V result) {
StatefulRunnable statefulRunnable = new StatefulRunnable(r);
Runnable notifiedRunnable = ManagedExecutors.managedTask(statefulRunnable,
(r instanceof ManagedTask) ? ((ManagedTask) r).getExecutionProperties() : null,
new MultiManagedTaskListener(this,
(r instanceof ManagedTask) ? ((ManagedTask) r).getManagedTaskListener() : null));
ManagedFutureTask<V> managedFutureTask = new ManagedFutureTask<>(this, notifiedRunnable, result);
// managedFutureTask.setTaskDoneCallback((ManagedFutureTask future) -> {
// this.taskDone(future, adapter, this, null);
// });
statefulRunnable.setTask(managedFutureTask);
runningFutures.put(managedFutureTask, notifiedRunnable);
return managedFutureTask;
}
public class StatefulRunnable implements Runnable {
private final Runnable runnable;
private ManagedFutureTask task;
public StatefulRunnable(Runnable runnable) {
this.runnable = runnable;
}
@Override
public void run() {
Thread thread = Thread.currentThread();
if (thread instanceof ManagedThreadFactoryImpl.WorkerThread workerThread) {
workerThread.notifyTaskStarting(task);
}
task.starting(thread);
runnable.run();
taskDone(task, adapter, runnable, null);
if (thread instanceof ManagedThreadFactoryImpl.WorkerThread workerThread) {
workerThread.notifyTaskDone();
}
}
public void setTask(ManagedFutureTask task) {
this.task = task;
}
}
@Override
protected ManagedFutureTask getNewTaskFor(Callable callable) {
return new ManagedFutureTask(this, callable); // FIXME like for Runnable
}
@Override
public List<Runnable> shutdownNow() {
super.shutdownNow();
ArrayList<Runnable> runnables = new ArrayList<>(runningFutures.values());
ArrayList<ManagedFutureTask<?>> copyOfRunningFutures = new ArrayList<>(runningFutures.keySet());
copyOfRunningFutures.stream().forEach(future -> {
future.cancel(false);
//System.out.println("Future " + future + " in state: " + future.state());
});
return Collections.unmodifiableList(runnables);
}
@Override
public long getTaskCount() {
return taskCount.get();
}
@Override
public ManagedThreadFactoryImpl getManagedThreadFactory() {
return managedThreadFactory;
}
@Override
protected ExecutorService getThreadPoolExecutor() {
return executor;
}
@Override
protected boolean isTaskHung(Thread thread, long now) {
WorkerThread managedThread = (WorkerThread) thread;
return managedThread.isTaskHung(now);
}
@Override
public long getCompletedTaskCount() {
return tasksCompleted.get();
}
@Override
public void taskSubmitted(Future<?> future, ManagedExecutorService executor, Object task) {
taskCount.incrementAndGet();
}
@Override
public void taskAborted(Future<?> future, ManagedExecutorService executor, Object task, Throwable exception) {
runningFutures.remove((ManagedFutureTask) future);
taskCount.decrementAndGet();
}
@Override
public void taskDone(Future<?> future, ManagedExecutorService executor, Object task, Throwable exception) {
runningFutures.remove((ManagedFutureTask) future);
tasksCompleted.incrementAndGet();
}
@Override
public void taskStarting(Future<?> future, ManagedExecutorService executor, Object task) {
}
}