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(RepositoryHandler repositoryHandler, HandlerHelper handlerHelper, List<String> supportedZones)	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.
Optional<LineageEntity>	buildAssetEntityContext(String userId, String guid, String typeDefName)	Returns the asset entity context in lineage format
Map<String,RelationshipsContext>	buildColumnContext(String userId, LineageEntity lineageEntity)	Builds the column context for a schema element
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 Detail

AssetContextHandler

public AssetContextHandler(RepositoryHandler repositoryHandler,
                           HandlerHelper handlerHelper,
                           List<String> supportedZones)

Construct the handler information needed to interact with the repository services

Parameters:

repositoryHandler - handler for calling the repository services

handlerHelper - helper handler

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

Method Detail

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:

lineageEntity - column as lineage entity

Returns:

column context of the schema element

Throws:

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

buildAssetEntityContext

public Optional<LineageEntity> buildAssetEntityContext(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