org.apache.reef.tests.fail.driver

Class NoopTask

java.lang.Object

org.apache.reef.tests.fail.driver.NoopTask

All Implemented Interfaces:

Task, TaskMessageSource

public final class NoopTask
extends Object
implements Task, TaskMessageSource

A basic task that quite successfully does nothing.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	NoopTask.DriverMessageHandler Handler for DriverMessage.
class	NoopTask.TaskCloseHandler Handler for CloseEvent.
class	NoopTask.TaskStopHandler Handler for TaskStop.
class	NoopTask.TaskSuspendHandler Handler for SuspendEvent.

Constructor Summary

Constructors

Constructor and Description
NoopTask()

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	call(byte[] memento) Called by the resourcemanager harness to execute the task.
Optional<TaskMessage>	getMessage()

Methods inherited from class java.lang.Object

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

Constructor Detail

NoopTask

@Inject
public NoopTask()

Method Detail

call

public byte[] call(byte[] memento)

Description copied from interface: Task

Called by the resourcemanager harness to execute the task.

Specified by:

call in interface Task

Parameters:

memento - the memento objected passed down by the driver.

Returns:

the user defined return value

getMessage

public Optional<TaskMessage> getMessage()

Specified by:

getMessage in interface TaskMessageSource

Returns:

a message to be sent back to the Driver, or Optional.empty() if no message shall be sent at this time.