org.ow2.proactive.scheduler.task

Class ProgressFileReaderPoller

java.lang.Object

org.ow2.proactive.scheduler.task.ProgressFileReaderPoller

All Implemented Interfaces:

ProgressFileReaderInterface

public class ProgressFileReaderPoller
extends Object
implements ProgressFileReaderInterface

ProgressFileReader is in charge of: - creating a progress file in the specified working directory - detecting changes on a progress file efficiently - reading new value and saving it in memory - exposing the last read value

Instances of this class are NOT thread-safe.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ProgressFileReaderPoller.Listener

Constructor Summary

Constructors

Constructor and Description
ProgressFileReaderPoller()

Method Summary

Modifier and Type	Method and Description
int	getProgress()
Path	getProgressFile()
void	readValue()
void	register(ProgressFileReaderPoller.Listener listener)
boolean	start(File workingDir, TaskId taskId)
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

ProgressFileReaderPoller

public ProgressFileReaderPoller()

Method Detail

start

public boolean start(File workingDir,
                     TaskId taskId)

Specified by:

start in interface ProgressFileReaderInterface

getProgress

public int getProgress()

Specified by:

getProgress in interface ProgressFileReaderInterface

getProgressFile

public Path getProgressFile()

Specified by:

getProgressFile in interface ProgressFileReaderInterface

register

public void register(ProgressFileReaderPoller.Listener listener)

stop

public void stop()

Specified by:

stop in interface ProgressFileReaderInterface

readValue

public void readValue()