org.odpi.openmetadata.governanceservers.openlineage.graph

Class LineageGraphConnectorBase

java.lang.Object

org.odpi.openmetadata.frameworks.connectors.Connector

org.odpi.openmetadata.frameworks.connectors.ConnectorBase

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

All Implemented Interfaces:

LineageGraph, OpenLineageGraphConnector

public abstract class LineageGraphConnectorBase
extends ConnectorBase
implements LineageGraph

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 and Description
LineageGraphConnectorBase()

Method Summary

Modifier and Type	Method and Description
abstract void	deleteClassification(Set<GraphContext> classificationContext) Deletes an entity's classification in the Graph
abstract void	deleteEntity(String guid, Object version) /** Deletes a vertex in the graph
abstract void	deleteRelationship(String guid) Deletes a relationship in the graph
abstract void	initializeGraphDB(AuditLog auditLog) Initialize the connectors
abstract boolean	isEntityInGraph(String guid) Returns whether an entity exists in the graph or not
abstract void	removeObsoleteEdgesFromGraph(String entityGUID, Set<GraphContext> graphContext) Checks difference between new graph context and existing graph and delete edge graphs that are no longer in the cotnext
abstract void	storeToGraph(Set<GraphContext> graphContext) Stores a lineage event into the lineage graph database
abstract void	updateClassification(Set<GraphContext> classificationContext) Updates an entity's classification in the Graph
abstract void	updateEntity(LineageEntity lineageEntity) Updates a vertex in the Graph
abstract void	updateRelationship(LineageRelationship lineageRelationship) Updates a vertex in the Graph
abstract 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

disconnect, 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.graph.LineageGraph

getAssetLineageUpdateTime, performLineageGraphJob, saveAssetLineageUpdateTime

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

disconnect, getEntityDetails, lineage, start

Constructor Detail

LineageGraphConnectorBase

public LineageGraphConnectorBase()

Method Detail

initializeGraphDB

public abstract void initializeGraphDB(AuditLog auditLog)
                                throws OpenLineageException

Description copied from interface: OpenLineageGraphConnector

Initialize the connectors

Specified by:

initializeGraphDB in interface OpenLineageGraphConnector

Throws:

OpenLineageException

storeToGraph

public abstract void storeToGraph(Set<GraphContext> graphContext)

Description copied from interface: LineageGraph

Stores a lineage event into the lineage graph database

Specified by:

storeToGraph in interface LineageGraph

Parameters:

graphContext - graph Collection

removeObsoleteEdgesFromGraph

public abstract void removeObsoleteEdgesFromGraph(String entityGUID,
                                                  Set<GraphContext> graphContext)

Description copied from interface: LineageGraph

Checks difference between new graph context and existing graph and delete edge graphs that are no longer in the cotnext

Specified by:

removeObsoleteEdgesFromGraph in interface LineageGraph

Parameters:

entityGUID - entity GUID whose context is being updated

graphContext - the nodes and edges related to the entity

updateEntity

public abstract void updateEntity(LineageEntity lineageEntity)

Description copied from interface: LineageGraph

Updates a vertex in the Graph

Specified by:

updateEntity in interface LineageGraph

Parameters:

lineageEntity - entity to be updated

updateRelationship

public abstract void updateRelationship(LineageRelationship lineageRelationship)

Description copied from interface: LineageGraph

Updates a vertex in the Graph

Specified by:

updateRelationship in interface LineageGraph

Parameters:

lineageRelationship - relationship to be updated

updateClassification

public abstract void updateClassification(Set<GraphContext> classificationContext)

Description copied from interface: LineageGraph

Updates an entity's classification in the Graph

Specified by:

updateClassification in interface LineageGraph

Parameters:

classificationContext - classification context

deleteClassification

public abstract void deleteClassification(Set<GraphContext> classificationContext)

Description copied from interface: LineageGraph

Deletes an entity's classification in the Graph

Specified by:

deleteClassification in interface LineageGraph

Parameters:

classificationContext - classification context

upsertRelationship

public abstract void upsertRelationship(LineageRelationship lineageRelationship)

Description copied from interface: LineageGraph

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

Specified by:

upsertRelationship in interface LineageGraph

Parameters:

lineageRelationship - relationship to be updated or created

deleteRelationship

public abstract void deleteRelationship(String guid)

Description copied from interface: LineageGraph

Deletes a relationship in the graph

Specified by:

deleteRelationship in interface LineageGraph

Parameters:

guid - unique identifier of the entity to be deleted

deleteEntity

public abstract void deleteEntity(String guid,
                                  Object version)

Description copied from interface: LineageGraph

/** Deletes a vertex in the graph

Specified by:

deleteEntity in interface LineageGraph

Parameters:

guid - unique identifier of the entity to be deleted

version - version of the entity to be deleted

isEntityInGraph

public abstract boolean isEntityInGraph(String guid)

Description copied from interface: LineageGraph

Returns whether an entity exists in the graph or not

Specified by:

isEntityInGraph in interface LineageGraph

Parameters:

guid - the lineage entity guid

Returns:

the boolean