org.apache.ignite.internal.visor.dr

Class VisorDrPartitionCountersTask<K,V,J>

java.lang.Object

org.apache.ignite.internal.visor.VisorMultiNodeTask<K,V,J>

org.apache.ignite.internal.visor.dr.VisorDrPartitionCountersTask<K,V,J>

All Implemented Interfaces:

Serializable, ComputeTask<VisorTaskArgument<K>,V>

Direct Known Subclasses:

VisorDrCheckPartitionCountersTask, VisorDrRepairPartitionCountersTask

public abstract class VisorDrPartitionCountersTask<K,V,J>
extends VisorMultiNodeTask<K,V,J>

Abstract dr partition counters task. Contains map/reduce methods implementation.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

debug, ignite, NO_SUITABLE_NODE_MESSAGE, start, taskArg

Constructor Summary

Constructors

Constructor and Description
VisorDrPartitionCountersTask()

Method Summary

Modifier and Type	Method and Description
protected abstract VisorJob<K,J>	createJob(K args, Map<String,Set<Integer>> cachePartsMap, boolean debug) Creates job from task args and cache-partitions map.
protected abstract V	createResult(Map<UUID,Exception> exceptions, Map<UUID,J> results) Creates task result from exceptions map and results map.
protected abstract Set<String>	getCaches(K args) Gets caches.
protected VisorJob<K,J>	job(K arg)
protected Map<? extends ComputeJob,ClusterNode>	map0(List<ClusterNode> subgrid, VisorTaskArgument<K> arg)
protected V	reduce0(List<ComputeJobResult> results)

Methods inherited from class org.apache.ignite.internal.visor.VisorMultiNodeTask

jobNodes, map, reduce, result

Methods inherited from class java.lang.Object

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

Constructor Detail

VisorDrPartitionCountersTask

public VisorDrPartitionCountersTask()

Method Detail

getCaches

protected abstract Set<String> getCaches(K args)

Gets caches.

Parameters:

args - Task args.

Returns:

Set of cache or cache group names.

createJob

protected abstract VisorJob<K,J> createJob(K args,
                                           Map<String,Set<Integer>> cachePartsMap,
                                           boolean debug)

Creates job from task args and cache-partitions map.

Parameters:

args - Task args.

cachePartsMap - Cache-partition map, contains caches and partitions assigned for the node.

debug - Debug flag.

Returns:

VisorJob job.

createResult

protected abstract V createResult(Map<UUID,Exception> exceptions,
                                  Map<UUID,J> results)

Creates task result from exceptions map and results map.

Parameters:

exceptions - Node-exception map.

results - Node-result map.

Returns:

Task result.

job

protected VisorJob<K,J> job(K arg)

Specified by:

job in class VisorMultiNodeTask<K,V,J>

map0

protected Map<? extends ComputeJob,ClusterNode> map0(List<ClusterNode> subgrid,
                                                     VisorTaskArgument<K> arg)

Overrides:

map0 in class VisorMultiNodeTask<K,V,J>

reduce0

protected V reduce0(List<ComputeJobResult> results)
             throws IgniteException

Specified by:

reduce0 in class VisorMultiNodeTask<K,V,J>

Throws:

IgniteException