ai.grakn.engine.postprocessing

Class PostProcessor

java.lang.Object

ai.grakn.engine.postprocessing.PostProcessor

public class PostProcessor
extends Object

Class responsible for post processing concepts which may be broken.

Contains the logic which is needed for post processing Concepts for the moment this includes: - Merging duplicate Attributes - Counting new Things which have been created under Types

Author:

Filipe Peliz Pinto Teixeira

Method Summary

Modifier and Type	Method and Description
static PostProcessor	create(GraknConfig engineConfig, redis.clients.util.Pool<redis.clients.jedis.Jedis> jedisPool, EngineGraknTxFactory factory, LockProvider lockProvider, com.codahale.metrics.MetricRegistry metricRegistry)
void	mergeDuplicateConcepts(ai.grakn.GraknTx tx, String conceptIndex, Set<ai.grakn.concept.ConceptId> conceptIds) Merges duplicate Concepts based on the unique index provided plus the ConceptIds of the suspected duplicates
void	updateCounts(ai.grakn.Keyspace keyspace, ai.grakn.kb.log.CommitLog commitLog) Updates the counts of Types based on the commit logs received.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static PostProcessor create(GraknConfig engineConfig,
                                   redis.clients.util.Pool<redis.clients.jedis.Jedis> jedisPool,
                                   EngineGraknTxFactory factory,
                                   LockProvider lockProvider,
                                   com.codahale.metrics.MetricRegistry metricRegistry)

updateCounts

public void updateCounts(ai.grakn.Keyspace keyspace,
                         ai.grakn.kb.log.CommitLog commitLog)

Updates the counts of Types based on the commit logs received.

Parameters:

keyspace - The Keyspace which contains Types with new instances.

commitLog - The commit log containing the details of the job

mergeDuplicateConcepts

public void mergeDuplicateConcepts(ai.grakn.GraknTx tx,
                                   String conceptIndex,
                                   Set<ai.grakn.concept.ConceptId> conceptIds)

Merges duplicate Concepts based on the unique index provided plus the ConceptIds of the suspected duplicates

Parameters:

tx - The GraknTx responsible for performing the merge

conceptIndex - The unique Concept index which is supposed to exist only once across the entire DB.

conceptIds - The ConceptIds of the suspected duplicates