Package org.glassfish.enterprise.concurrent.internal

Class ManagedFutureTask<V>

java.lang.Object

java.util.concurrent.FutureTask<V>

org.glassfish.enterprise.concurrent.internal.ManagedFutureTask<V>

All Implemented Interfaces:

Runnable, Future<V>, RunnableFuture<V>

public class ManagedFutureTask<V>
extends FutureTask<V>
implements Future<V>

Future implementation to be returned by methods in ManagedExecutorSerivceImpl. This class is responsible for saving and restoring thread context, as well as invoking ManagedTaskListener methods.

Field Summary

Fields

Modifier and Type	Field	Description
protected ContextHandle	contextHandleForReset
protected ContextHandle	contextHandleForSetup
protected AbstractManagedExecutorService	executor
protected Object	task
protected TaskDoneCallback	taskDoneCallback
protected javax.enterprise.concurrent.ManagedTaskListener	taskListener
protected Throwable	taskRunThrowable

Constructor Summary

Constructors

Constructor	Description
ManagedFutureTask(AbstractManagedExecutorService executor, Runnable runnable, V result)
ManagedFutureTask(AbstractManagedExecutorService executor, Callable callable)

Method Summary

Modifier and Type	Method	Description
boolean	cancel(boolean mayInterruptIfRunning)
protected void	captureContext(AbstractManagedExecutorService executor)
protected void	done()
void	done(Throwable t)	Call by ThreadPoolExecutor after a task is done execution.
String	getTaskIdentityName()
void	resetContext()
void	run()
protected void	setException(Throwable t)
void	setTaskDoneCallback(TaskDoneCallback taskDoneCallback)
void	setupContext()
void	starting(Thread t)
void	submitted()

Methods inherited from interface java.util.concurrent.Future

get, get, isCancelled, isDone

Methods inherited from class java.util.concurrent.FutureTask

get, get, isCancelled, isDone, runAndReset, set

Methods inherited from class java.lang.Object

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

Field Detail

executor

protected final AbstractManagedExecutorService executor

taskListener

protected final javax.enterprise.concurrent.ManagedTaskListener taskListener

contextHandleForSetup

protected ContextHandle contextHandleForSetup

contextHandleForReset

protected ContextHandle contextHandleForReset

task

protected Object task

taskRunThrowable

protected Throwable taskRunThrowable

taskDoneCallback

protected TaskDoneCallback taskDoneCallback

Constructor Detail

ManagedFutureTask

public ManagedFutureTask(AbstractManagedExecutorService executor,
                         Runnable runnable,
                         V result)

ManagedFutureTask

public ManagedFutureTask(AbstractManagedExecutorService executor,
                         Callable callable)

Method Detail

captureContext

protected final void captureContext(AbstractManagedExecutorService executor)

setupContext

public void setupContext()

resetContext

public void resetContext()

run

public void run()

Specified by:

run in interface Runnable

Specified by:

run in interface RunnableFuture<V>

Overrides:

run in class FutureTask<V>

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<V>

Overrides:

cancel in class FutureTask<V>

submitted

public void submitted()

done

protected void done()

Overrides:

done in class FutureTask<V>

setException

protected void setException(Throwable t)

Overrides:

setException in class FutureTask<V>

starting

public void starting(Thread t)

done

public void done(Throwable t)

Call by ThreadPoolExecutor after a task is done execution. This is called on the thread where the task is run, so there is no need to set up thread context before calling the ManagedTaskListener callback method.

Parameters:

t - any runtime exception encountered during executing the task. But any Throwable thrown during executing of running the task would have been caught by FutureTask and would have been set by setException(). So t is ignored here.

setTaskDoneCallback

public void setTaskDoneCallback(TaskDoneCallback taskDoneCallback)

getTaskIdentityName

public String getTaskIdentityName()