org.gridgain.grid.kernal.visor.cmd.tasks

Class VisorEventsCollectTask

java.lang.Object

org.gridgain.grid.kernal.visor.cmd.VisorMultiNodeTask<VisorEventsCollectTask.VisorEventsCollectArgs,Iterable<? extends VisorGridEvent>,Collection<? extends VisorGridEvent>>

org.gridgain.grid.kernal.visor.cmd.tasks.VisorEventsCollectTask

All Implemented Interfaces:

Serializable, GridComputeTask<GridBiTuple<Set<UUID>,VisorEventsCollectTask.VisorEventsCollectArgs>,Iterable<? extends VisorGridEvent>>

@GridInternal
public class VisorEventsCollectTask
extends VisorMultiNodeTask<VisorEventsCollectTask.VisorEventsCollectArgs,Iterable<? extends VisorGridEvent>,Collection<? extends VisorGridEvent>>

Task that runs on specified node and returns events data.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	VisorEventsCollectTask.VisorEventsCollectArgs Argument for task returns events data.

Field Summary

Fields inherited from class org.gridgain.grid.kernal.visor.cmd.VisorMultiNodeTask

taskArg

Constructor Summary

Constructors

Constructor and Description
VisorEventsCollectTask()

Method Summary

Methods

Modifier and Type	Method and Description
protected org.gridgain.grid.kernal.visor.cmd.tasks.VisorEventsCollectTask.VisorEventsCollectJob	job(VisorEventsCollectTask.VisorEventsCollectArgs arg)
Iterable<? extends VisorGridEvent>	reduce(List<GridComputeJobResult> results) Reduces (or aggregates) results received so far into one compound result to be returned to caller via GridComputeTaskFuture.get() method.

Methods inherited from class org.gridgain.grid.kernal.visor.cmd.VisorMultiNodeTask

map, result

Methods inherited from class java.lang.Object

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

Constructor Detail

VisorEventsCollectTask

public VisorEventsCollectTask()

Method Detail

job

protected org.gridgain.grid.kernal.visor.cmd.tasks.VisorEventsCollectTask.VisorEventsCollectJob job(VisorEventsCollectTask.VisorEventsCollectArgs arg)

Specified by:

job in class VisorMultiNodeTask<VisorEventsCollectTask.VisorEventsCollectArgs,Iterable<? extends VisorGridEvent>,Collection<? extends VisorGridEvent>>

Parameters:

arg - Task arg.

Returns:

New job.

reduce

public Iterable<? extends VisorGridEvent> reduce(List<GridComputeJobResult> results)
                                          throws GridException

Reduces (or aggregates) results received so far into one compound result to be returned to caller via GridComputeTaskFuture.get() method.

Note, that if some jobs did not succeed and could not be failed over then the list of results passed into this method will include the failed results. Otherwise, failed results will not be in the list.

Parameters:

results - Received results of broadcasted remote executions. Note that if task class has GridComputeTaskNoResultCache annotation, then this list will be empty.

Returns:

Grid job result constructed from results of remote executions.

Throws:

GridException - If reduction or results caused an error. This exception will be thrown out of GridComputeTaskFuture.get() method.