org.apache.solr.cloud.autoscaling

Class ComputePlanAction

java.lang.Object

org.apache.solr.cloud.autoscaling.TriggerActionBase

org.apache.solr.cloud.autoscaling.ComputePlanAction

All Implemented Interfaces:

Closeable, AutoCloseable, TriggerAction, MapInitializedPlugin

Direct Known Subclasses:

AutoAddReplicasPlanAction

public class ComputePlanAction
extends TriggerActionBase

This class is responsible for using the configured policy and preferences with the hints provided by the trigger event to compute the required cluster operations.

The cluster operations computed here are put into the ActionContext's properties with the key name "operations". The value is a List of SolrRequest objects.

Field Summary

Fields inherited from class org.apache.solr.cloud.autoscaling.TriggerActionBase

initArgs

Constructor Summary

Constructors

Constructor and Description
ComputePlanAction()

Method Summary

Modifier and Type	Method and Description
protected int	getMaxNumOps(TriggerEvent event, AutoScalingConfig autoScalingConfig, ClusterState clusterState)
protected int	getRequestedNumOps(TriggerEvent event)
protected Suggester	getSuggester(Policy.Session session, TriggerEvent event, SolrCloudManager cloudManager)
void	init(Map<String,String> args)
void	process(TriggerEvent event, ActionContext context)

Methods inherited from class org.apache.solr.cloud.autoscaling.TriggerActionBase

close, getName

Methods inherited from class java.lang.Object

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

Constructor Detail

ComputePlanAction

public ComputePlanAction()

Method Detail

init

public void init(Map<String,String> args)

Specified by:

init in interface MapInitializedPlugin

Overrides:

init in class TriggerActionBase

process

public void process(TriggerEvent event,
                    ActionContext context)
             throws Exception

Throws:

Exception

getMaxNumOps

protected int getMaxNumOps(TriggerEvent event,
                           AutoScalingConfig autoScalingConfig,
                           ClusterState clusterState)

getRequestedNumOps

protected int getRequestedNumOps(TriggerEvent event)

getSuggester

protected Suggester getSuggester(Policy.Session session,
                                 TriggerEvent event,
                                 SolrCloudManager cloudManager)