Package org.odpi.openmetadata.openconnectors.governancedaemonconnectors.openlineageconnectors.janusconnector.graph

Class LineageGraphConnector

java.lang.Object

org.odpi.openmetadata.frameworks.connectors.Connector

org.odpi.openmetadata.frameworks.connectors.ConnectorBase

org.odpi.openmetadata.governanceservers.openlineage.graph.LineageGraphConnectorBase

org.odpi.openmetadata.openconnectors.governancedaemonconnectors.openlineageconnectors.janusconnector.graph.LineageGraphConnector

All Implemented Interfaces:

LineageGraph, OpenLineageGraphConnector

public class LineageGraphConnector
extends LineageGraphConnectorBase

Nested Class Summary

Nested classes/interfaces inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

ConnectorBase.ProtectedConnection

Field Summary

Fields inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

connectedAssetProperties, connectionBean, connectionProperties, connectorInstanceId, securedProperties

Constructor Summary

Constructors

Constructor	Description
LineageGraphConnector()

Method Summary

Modifier and Type	Method	Description
void	deleteClassification(Set<GraphContext> classificationContext)	Deletes a classification of a vertex
void	deleteEntity(String guid, Object version)
void	deleteRelationship(String guid)
void	disconnect()
Optional<Long>	getAssetLineageUpdateTime()
LineageVertexResponse	getEntityDetails(String guid)
void	initializeGraphDB(AuditLog auditLog)	Instantiates the graph based on the configuration passed.
boolean	isEntityInGraph(String guid)
LineageResponse	lineage(Scope scope, String guid, String displayNameMustContain, boolean includeProcesses)
void	performLineageGraphJob()
void	saveAssetLineageUpdateTime(Long lastUpdateTime)
void	storeToGraph(Set<GraphContext> graphContext)	Creates vertices and the relationships between them
void	updateClassification(Set<GraphContext> classificationContext)	Updates the classification of a vertex
void	updateEntity(LineageEntity lineageEntity)	Updates the properties of a vertex
void	updateNeighbours(String nodeGUID, Set<String> neighboursGUIDS)	Updates the neighbours of a node by removing all the entities that no longer have a relationship with it.
void	updateRelationship(LineageRelationship lineageRelationship)	Updates the properties of an edge
void	upsertRelationship(LineageRelationship lineageRelationship)	Create or update the relationship between two edges In case the vertexes are not created, they are firstly created

Methods inherited from class org.odpi.openmetadata.frameworks.connectors.ConnectorBase

equals, getConnectedAssetProperties, getConnection, getConnectorInstanceId, hashCode, initialize, initializeConnectedAssetProperties, isActive, start, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.odpi.openmetadata.governanceservers.openlineage.OpenLineageGraphConnector

start

Constructor Detail

LineageGraphConnector

public LineageGraphConnector()

Method Detail

initializeGraphDB

public void initializeGraphDB(AuditLog auditLog)
                       throws OpenLineageException

Instantiates the graph based on the configuration passed.

Throws:

OpenLineageException

disconnect

public void disconnect()

Specified by:

disconnect in interface OpenLineageGraphConnector

Overrides:

disconnect in class ConnectorBase

performLineageGraphJob

public void performLineageGraphJob()

saveAssetLineageUpdateTime

public void saveAssetLineageUpdateTime(Long lastUpdateTime)

getAssetLineageUpdateTime

public Optional<Long> getAssetLineageUpdateTime()

storeToGraph

public void storeToGraph(Set<GraphContext> graphContext)

Creates vertices and the relationships between them

Parameters:

graphContext - - graph Collection that contains vertices and edges to be stored

updateNeighbours

public void updateNeighbours(String nodeGUID,
                             Set<String> neighboursGUIDS)

Updates the neighbours of a node by removing all the entities that no longer have a relationship with it.

Parameters:

nodeGUID - - the identifier of the entity that was updated

neighboursGUIDS - - the identifiers of the nodes that have a direct relationship to the entity

updateEntity

public void updateEntity(LineageEntity lineageEntity)

Updates the properties of a vertex

Parameters:

lineageEntity - - LineageEntity object that has the updated values

upsertRelationship

public void upsertRelationship(LineageRelationship lineageRelationship)

Create or update the relationship between two edges In case the vertexes are not created, they are firstly created

Parameters:

lineageRelationship - relationship to be updated or created

updateRelationship

public void updateRelationship(LineageRelationship lineageRelationship)

Updates the properties of an edge

Parameters:

lineageRelationship - - lineageRelationship object that has the updated values

updateClassification

public void updateClassification(Set<GraphContext> classificationContext)

Updates the classification of a vertex

Parameters:

classificationContext - - LineageEntity object that has the updated values

deleteClassification

public void deleteClassification(Set<GraphContext> classificationContext)

Deletes a classification of a vertex

Parameters:

classificationContext - - any remaining classifications, empty map if none

deleteEntity

public void deleteEntity(String guid,
                         Object version)

deleteRelationship

public void deleteRelationship(String guid)

lineage

public LineageResponse lineage(Scope scope,
                               String guid,
                               String displayNameMustContain,
                               boolean includeProcesses)

getEntityDetails

public LineageVertexResponse getEntityDetails(String guid)

isEntityInGraph

public boolean isEntityInGraph(String guid)