org.apache.oodt.cas.workflow.engine.runner

Class AsynchronousLocalEngineRunner

java.lang.Object

org.apache.oodt.cas.workflow.engine.runner.EngineRunner

org.apache.oodt.cas.workflow.engine.runner.AbstractEngineRunnerBase

org.apache.oodt.cas.workflow.engine.runner.AsynchronousLocalEngineRunner

public class AsynchronousLocalEngineRunner
extends AbstractEngineRunnerBase

Runs a local version of a TaskProcessor asynchronously.

Author:

mattmann (Chris Mattmann), bfoster (Brian Foster)

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_NUM_THREADS

Fields inherited from class org.apache.oodt.cas.workflow.engine.runner.AbstractEngineRunnerBase

instRep

Constructor Summary

Constructors

Constructor and Description
AsynchronousLocalEngineRunner()
AsynchronousLocalEngineRunner(int numThreads)

Method Summary

Modifier and Type	Method and Description
void	execute(TaskProcessor taskProcessor) Executes a TaskProcessor on an execution substrate.
boolean	hasOpenSlots(TaskProcessor taskProcessor) Decides whether or not there are available slots within this runner to execute the provided TaskProcessor.
void	setInstanceRepository(WorkflowInstanceRepository instRep)
void	shutdown() Shuts this runner down and frees its resources.

Methods inherited from class org.apache.oodt.cas.workflow.engine.runner.AbstractEngineRunnerBase

getLifecycle, getTaskFromProcessor, persist

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NUM_THREADS

public static final int DEFAULT_NUM_THREADS

See Also:

Constant Field Values

Constructor Detail

AsynchronousLocalEngineRunner

public AsynchronousLocalEngineRunner()

AsynchronousLocalEngineRunner

public AsynchronousLocalEngineRunner(int numThreads)

Method Detail

execute

public void execute(TaskProcessor taskProcessor)

Description copied from class: EngineRunner

Executes a TaskProcessor on an execution substrate. Ideally there will only ever be two of these substrates, one for local execution, and another for communication with the Resource Manager.

Specified by:

execute in class EngineRunner

Parameters:

taskProcessor - The TaskProcessor to instantiate and execute.

shutdown

public void shutdown()

Description copied from class: EngineRunner

Shuts this runner down and frees its resources.

Specified by:

shutdown in class EngineRunner

hasOpenSlots

public boolean hasOpenSlots(TaskProcessor taskProcessor)

Description copied from class: EngineRunner

Decides whether or not there are available slots within this runner to execute the provided TaskProcessor.

Specified by:

hasOpenSlots in class EngineRunner

Parameters:

taskProcessor - The TaskProcessor to execute.

Returns:

True if there is an open slot, false otherwise.

setInstanceRepository

public void setInstanceRepository(WorkflowInstanceRepository instRep)

Specified by:

setInstanceRepository in class EngineRunner