org.ow2.proactive.scheduler.task

Class ProgressFileReader

java.lang.Object

org.ow2.proactive.scheduler.task.ProgressFileReader

All Implemented Interfaces:

ProgressFileReaderInterface

public class ProgressFileReader
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	ProgressFileReader.Listener
class	ProgressFileReader.ProgressFileReaderThread

Constructor Summary

Constructors

Constructor and Description
ProgressFileReader()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

ProgressFileReader

public ProgressFileReader()

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(ProgressFileReader.Listener listener)

unregister

public void unregister(ProgressFileReader.Listener listener)

stop

public void stop()

Specified by:

stop in interface ProgressFileReaderInterface