Package org.odpi.openmetadata.accessservices.assetlineage.handlers

Class AssetContextHandler

java.lang.Object

org.odpi.openmetadata.accessservices.assetlineage.handlers.AssetContextHandler

public class AssetContextHandler
extends Object

The Asset Context Handler provides methods to build graph context for schema elements.

Constructor Summary

Constructors

Constructor	Description
AssetContextHandler(OpenMetadataAPIGenericHandler<GenericStub> genericHandler, HandlerHelper handlerHelper, List<String> supportedZones, ClockService clockService)	Construct the handler information needed to interact with the repository services

Method Summary

Modifier and Type	Method	Description
Map<String,RelationshipsContext>	buildAssetContext(String userId, LineageEntity lineageEntity)	Builds the asset context for a schema element.
RelationshipsContext	buildAssetContext(String userId, EntityDetail entityDetail)	Builds the asset context for a schema element.
Map<String,RelationshipsContext>	buildColumnContext(String userId, LineageEntity lineageEntity)	Builds the column context for a schema element
Optional<LineageEntity>	buildEntityContext(String userId, String guid, String typeDefName)	Returns the asset entity context in lineage format
Map<String,RelationshipsContext>	buildSchemaElementContext(String userId, EntityDetail entityDetail)	Builds the context for a schema element without the asset context.

Methods inherited from class java.lang.Object

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

Constructor Details

AssetContextHandler

public AssetContextHandler(OpenMetadataAPIGenericHandler<GenericStub> genericHandler,
 HandlerHelper handlerHelper,
 List<String> supportedZones,
 ClockService clockService)

Construct the handler information needed to interact with the repository services

Parameters:

genericHandler - handler for calling the repository services

handlerHelper - helper handler

supportedZones - configurable list of zones that Asset Lineage is allowed to retrieve Assets from

clockService - clock service

Method Details

buildSchemaElementContext

public Map<String,RelationshipsContext> buildSchemaElementContext(String userId,
 EntityDetail entityDetail)
                                                           throws OCFCheckedExceptionBase

Builds the context for a schema element without the asset context.

Parameters:

userId - the unique identifier for the user

entityDetail - the entity for which the context is build

Returns:

the context of the schema element

Throws:

OCFCheckedExceptionBase - checked exception for reporting errors found when using OCF connectors

buildAssetContext

public Map<String,RelationshipsContext> buildAssetContext(String userId,
 LineageEntity lineageEntity)
                                                   throws OCFCheckedExceptionBase

Builds the asset context for a schema element.

Parameters:

userId - the unique identifier for the user

lineageEntity - the entity for which the context is build

Returns:

the asset context of the schema element

Throws:

OCFCheckedExceptionBase - checked exception for reporting errors found when using OCF connectors

buildAssetContext

public RelationshipsContext buildAssetContext(String userId,
 EntityDetail entityDetail)
                                       throws OCFCheckedExceptionBase

Builds the asset context for a schema element.

Parameters:

userId - the unique identifier for the user

entityDetail - the entity for which the context is build

Returns:

the asset context of the schema element

Throws:

OCFCheckedExceptionBase - checked exception for reporting errors found when using OCF connectors

buildColumnContext

public Map<String,RelationshipsContext> buildColumnContext(String userId,
 LineageEntity lineageEntity)
                                                    throws OCFCheckedExceptionBase

Builds the column context for a schema element

Parameters:

userId - calling user

lineageEntity - column as lineage entity

Returns:

column context of the schema element

Throws:

OCFCheckedExceptionBase - checked exception for reporting errors found when using OCF connectors

buildEntityContext

public Optional<LineageEntity> buildEntityContext(String userId,
 String guid,
 String typeDefName)
                                           throws OCFCheckedExceptionBase

Returns the asset entity context in lineage format

Parameters:

userId - the unique identifier for the user

guid - the guid of the entity for which the context is build

typeDefName - the type def name of the entity for which the context is build

Returns:

the asset entity context in lineage format

Throws:

OCFCheckedExceptionBase - checked exception for reporting errors found when using OCF connectors