Package org.hawaiiframework.async

Class DelegatingExecutor

java.lang.Object

org.hawaiiframework.async.DelegatingExecutor

All Implemented Interfaces:

Executor, org.springframework.core.task.AsyncTaskExecutor, org.springframework.core.task.TaskExecutor, org.springframework.scheduling.SchedulingTaskExecutor

public class DelegatingExecutor
extends Object
implements org.springframework.core.task.AsyncTaskExecutor, org.springframework.scheduling.SchedulingTaskExecutor

Task executor that delegates to the task executor configured for a task.

In addition to the delegate, the async configuration properties and the task name is stored, so we know which task this executor is for and we are able to determine the timeout.

Since:

2.0.0

Field Summary

Fields inherited from interface org.springframework.core.task.AsyncTaskExecutor

TIMEOUT_IMMEDIATE, TIMEOUT_INDEFINITE

Constructor Summary

Constructors

Constructor	Description
DelegatingExecutor(org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor delegate, ExecutorConfigurationProperties executorConfigurationProperties, Collection<TaskListenerFactory> taskListenerFactories, String taskName)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	execute(Runnable task)
void	execute(Runnable task, long startTimeout)	Deprecated. see super class for explanation.
int	getActiveCount()	For testing purposes.
ExecutorStatisticsView	getExecutorStatistics()	Return the view on the statistics.
boolean	hasDelegate(org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor executor)	For testing purposes.
boolean	prefersShortLivedTasks()
Future<?>	submit(Runnable task)
<T> Future<T>	submit(Callable<T> task)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.core.task.AsyncTaskExecutor

submitCompletable, submitCompletable

Constructor Details

DelegatingExecutor

public DelegatingExecutor(org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor delegate,
 ExecutorConfigurationProperties executorConfigurationProperties,
 Collection<TaskListenerFactory> taskListenerFactories,
 String taskName)

Constructor.

Parameters:

delegate - the delegate

executorConfigurationProperties - the configuration properties

taskListenerFactories - The task context providers.

taskName - the task name

Method Details

execute

public void execute(@NonNull
 Runnable task)

Configures a SharedTaskContextHolder before delegating execution.

Specified by:

execute in interface Executor

Specified by:

execute in interface org.springframework.core.task.TaskExecutor

execute

@Deprecated
public void execute(@NonNull
 Runnable task,
 long startTimeout)

Deprecated.

see super class for explanation. Configures a SharedTaskContextHolder before delegating execution.

Specified by:

execute in interface org.springframework.core.task.AsyncTaskExecutor

submit

public Future<?> submit(@NonNull
 Runnable task)

Configures a SharedTaskContextHolder before delegating execution.

Specified by:

submit in interface org.springframework.core.task.AsyncTaskExecutor

submit

public <T> Future<T> submit(@NonNull
 Callable<T> task)

Configures a SharedTaskContextHolder before delegating execution.

Specified by:

submit in interface org.springframework.core.task.AsyncTaskExecutor

Type Parameters:

T - The return type of the task.

Parameters:

task - The task to submit to be executed.

Returns:

A future for the task.

getExecutorStatistics

public ExecutorStatisticsView getExecutorStatistics()

Return the view on the statistics.

Returns:

A view on the executor's statistics.

hasDelegate

public boolean hasDelegate(org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor executor)

For testing purposes.

Parameters:

executor - The executor to check this delegate against.

Returns:

true if this delegating executor has the given executor.

getActiveCount

public int getActiveCount()

For testing purposes. Return the number of currently active threads.

Returns:

the number of threads

See Also:

• ThreadPoolExecutor.getActiveCount()

prefersShortLivedTasks

public boolean prefersShortLivedTasks()

Specified by:

prefersShortLivedTasks in interface org.springframework.scheduling.SchedulingTaskExecutor