edu.illinois.ncsa.datawolf

Class LocalExecutor

java.lang.Object

edu.illinois.ncsa.datawolf.Executor

edu.illinois.ncsa.datawolf.LocalExecutor

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

CommandLineExecutor, JavaExecutor

public abstract class LocalExecutor
extends Executor
implements Runnable

Abstract class representing a local executor. Local executors will run on the local machine and use resources on the local machine. Examples of local executors are the java executor and the command line executor..

Author:

Rob Kooper

Field Summary

Fields inherited from class edu.illinois.ncsa.datawolf.Executor

datasetDao, executionDao, fileDescriptorDao, fileStorage, logFileDao, work, workflowStepDao

Constructor Summary

Constructors

Constructor and Description
LocalExecutor()

Method Summary

Methods

Modifier and Type	Method and Description
static String	debug()
abstract void	execute(File cwd) This will run the tool specified.
static int	getWorkers()
static boolean	isBusy()
void	run()
static void	setWorkers(int workers)
void	startJob() The job is ready to be executed.
void	stopJob() The job should be stopped.

Methods inherited from class edu.illinois.ncsa.datawolf.Executor

flushLog, getExecutionId, getExecutorName, getLog, getState, getStepId, isExecutorReady, isJobStopped, isStoreLog, print, print, println, println, println, setJobInformation, setLog, setState, setStoreLog

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalExecutor

public LocalExecutor()

Method Detail

setWorkers

public static void setWorkers(int workers)

getWorkers

public static int getWorkers()

isBusy

public static boolean isBusy()

debug

public static String debug()

execute

public abstract void execute(File cwd)
                      throws AbortException,
                             FailedException

This will run the tool specified. At this point the working directory is filled with all files needed for the execution of the tool.

Parameters:

cwd - the folder in which the executor can store all data.

Throws:

AbortException - an abort exception is thrown if the execution is aborted.

FailedException - a failed exception is thrown if the execution is failed to execute properly.

startJob

public void startJob()

Description copied from class: Executor

The job is ready to be executed. This function should submit the job and return quickly. This should not do the actual computation.

Specified by:

startJob in class Executor

stopJob

public void stopJob()

Description copied from class: Executor

The job should be stopped. If the job is actually running it should be killed, if it is waiting to be executed it should not be started.

Overrides:

stopJob in class Executor

run

public void run()

Specified by:

run in interface Runnable