Package org.apache.solr.cluster.placement.impl

Class SimplePlacementContextImpl

java.lang.Object

org.apache.solr.cluster.placement.impl.SimplePlacementContextImpl

All Implemented Interfaces:

PlacementContext

public class SimplePlacementContextImpl
extends Object
implements PlacementContext

Implementation of PlacementContext that uses SimpleClusterAbstractionsImpl to create components necessary for the placement plugins to use.

Constructor Summary

Constructors

Constructor	Description
SimplePlacementContextImpl(org.apache.solr.client.solrj.cloud.SolrCloudManager solrCloudManager)

Method Summary

Modifier and Type	Method	Description
AttributeFetcher	getAttributeFetcher()	Factory used by the plugin to fetch additional attributes from the cluster nodes, such as count of cores, system properties etc..
BalancePlanFactory	getBalancePlanFactory()	Factory used to create instances of BalancePlan to return computed decision.
Cluster	getCluster()	Initial state of the cluster.
PlacementPlanFactory	getPlacementPlanFactory()	Factory used to create instances of PlacementPlan to return computed decision.

Methods inherited from class java.lang.Object

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

Constructor Details

SimplePlacementContextImpl

public SimplePlacementContextImpl(org.apache.solr.client.solrj.cloud.SolrCloudManager solrCloudManager)
                           throws IOException

Throws:

IOException

Method Details

getCluster

public Cluster getCluster()

Description copied from interface: PlacementContext

Initial state of the cluster. Note there are Set's and Map's accessible from the Cluster and other reachable instances. These collection will not change while the plugin is executing and will be thrown away once the plugin is done. The plugin code can therefore modify them if needed.

Specified by:

getCluster in interface PlacementContext

getAttributeFetcher

public AttributeFetcher getAttributeFetcher()

Description copied from interface: PlacementContext

Factory used by the plugin to fetch additional attributes from the cluster nodes, such as count of cores, system properties etc..

Specified by:

getAttributeFetcher in interface PlacementContext

getPlacementPlanFactory

public PlacementPlanFactory getPlacementPlanFactory()

Description copied from interface: PlacementContext

Factory used to create instances of PlacementPlan to return computed decision.

Specified by:

getPlacementPlanFactory in interface PlacementContext

getBalancePlanFactory

public BalancePlanFactory getBalancePlanFactory()

Description copied from interface: PlacementContext

Factory used to create instances of BalancePlan to return computed decision.

Specified by:

getBalancePlanFactory in interface PlacementContext