Class ExternalIdentifierHandler<EXTERNAL_ID,OPEN_METADATA_ELEMENT_HEADER>

Type Parameters:
EXTERNAL_ID - bean that returns an external identifier
OPEN_METADATA_ELEMENT_HEADER - bean that returns the elements tied to this external identifier

public class ExternalIdentifierHandler<EXTERNAL_ID,OPEN_METADATA_ELEMENT_HEADER> extends ReferenceableHandler<EXTERNAL_ID>
ExternalIdentifierHandler manages ExternalIdentifier objects. These entities represent the identifiers used for metadata in third party technology. It runs server-side in the OMAG Server Platform and manages ExternalId entities through the OMRSRepositoryConnector via the repository handler. The ExternalIdentifier is linked to the SoftwareCapability that represents the third party technology that generated the external identifier. This is referred to as the scope. It is also linked to the element (or elements) in open metadata that are equivalent to the metadata element(s) in the third party technology. The correlation may be many-to-many.
  • Constructor Details

    • ExternalIdentifierHandler

      public ExternalIdentifierHandler(OpenMetadataAPIGenericConverter<EXTERNAL_ID> converter, Class<EXTERNAL_ID> beanClass, OpenMetadataAPIGenericConverter<OPEN_METADATA_ELEMENT_HEADER> elementConverter, Class<OPEN_METADATA_ELEMENT_HEADER> elementBeanClass, String serviceName, String serverName, InvalidParameterHandler invalidParameterHandler, RepositoryHandler repositoryHandler, OMRSRepositoryHelper repositoryHelper, String localServerUserId, OpenMetadataServerSecurityVerifier securityVerifier, List<String> supportedZones, List<String> defaultZones, List<String> publishZones, AuditLog auditLog)
      Construct the handler information needed to interact with the repository services
      Parameters:
      converter - specific converter for the EXTERNAL_ID bean class
      beanClass - name of bean class that is represented by the generic class EXTERNAL_ID
      elementConverter - specific converter for the OPEN_METADATA_ELEMENT_HEADER bean class
      elementBeanClass - name of bean class that is represented by the generic class OPEN_METADATA_ELEMENT_HEADER
      serviceName - name of this service
      serverName - name of the local server
      invalidParameterHandler - handler for managing parameter errors
      repositoryHandler - manages calls to the repository services
      repositoryHelper - provides utilities for manipulating the repository services objects
      localServerUserId - userId for this server
      securityVerifier - open metadata security services verifier
      supportedZones - list of zones that the access service is allowed to serve Asset instances from.
      defaultZones - list of zones that the access service should set in all new Asset instances.
      publishZones - list of zones that the access service sets up in published Asset instances.
      auditLog - destination for audit log events.
  • Method Details

    • setUpExternalIdentifier

      public void setUpExternalIdentifier(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, String identifier, String identifierParameterName, int identifierKeyPattern, String identifierDescription, String identifierUsage, String identifierSource, Map<String,String> identifierMappingProperties, String externalInstanceCreatedBy, Date externalInstanceCreationTime, String externalInstanceLastUpdatedBy, Date externalInstanceLastUpdateTime, long externalInstanceVersion, String scopeGUID, String scopeGUIDParameterName, String scopeQualifiedName, String scopeTypeName, int permittedSynchronization, String synchronizationDescription, Date effectiveFrom, Date effectiveTo, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, UserNotAuthorizedException, PropertyServerException
      Set up the ExternalIdentifier for the supplied element. This external identifier may already exist for the requested scope if multiple open metadata entities are needed to represent the metadata element(s) in the third party metadata source that is identified by this ExternalIdentifier.
      Parameters:
      userId - calling userId
      elementGUID - unique identifier of the open metadata element to link to the external identifier
      elementGUIDParameterName - parameter supplying elementGUID
      elementTypeName - type of the element
      identifier - identifier from the third party technology (scope)
      identifierParameterName - name of parameter supplying identifier
      identifierKeyPattern - type of key pattern used in the third party technology (typically local key)
      identifierDescription - name of the identifier in the third party technology
      identifierUsage - usage information from the connector/client supplying the identifier
      identifierSource - name of the connector/client supplying the identifier
      identifierMappingProperties - additional properties to help with the synchronization
      externalInstanceCreatedBy - the username of the person or process that created the instance in the external system
      externalInstanceCreationTime - the date/time when the instance in the external system was created
      externalInstanceLastUpdatedBy - the username of the person or process that last updated the instance in the external system
      externalInstanceLastUpdateTime - the date/time that the instance in the external system was last updated
      externalInstanceVersion - the latest version of the element in the external system
      scopeGUID - unique identifier of the software capability that represents the third metadata source
      scopeGUIDParameterName - parameter supplying scopeGUID
      scopeQualifiedName - qualified name from the entity that
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      permittedSynchronization - direction of synchronization
      synchronizationDescription - optional description of the synchronization in progress (augments the description in the permitted synchronization enum)
      effectiveFrom - the date when this element is active - null for active now
      effectiveTo - the date when this element becomes inactive - null for active until deleted
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for (null for any time, new Date() for now)
      methodName - calling method
      Throws:
      InvalidParameterException - one of the parameters is invalid
      UserNotAuthorizedException - the user is not authorized to issue this request
      PropertyServerException - there is a problem reported in the open metadata server(s)
    • logRelationshipCreation

      public void logRelationshipCreation(String scopeGUID, String scopeQualifiedName, String relationshipType, String end1GUID, String end1TypeName, String end2GUID, String end2TypeName, String methodName)
      Create an audit log record to document that an external metadata source has created a relationship.
      Parameters:
      scopeGUID - unique identifier of the element representing the scope
      scopeQualifiedName - unique name of the element representing the scope
      relationshipType - type of relationship
      end1GUID - unique identifier for the entity at end 1 of the relationship
      end1TypeName - type of the entity at end 1 of the relationship
      end2GUID - unique identifier for the entity at end 2 of the relationship
      end2TypeName - type of the entity at end 2 of the relationship
      methodName - calling method
    • logRelationshipUpdate

      public void logRelationshipUpdate(String scopeGUID, String scopeQualifiedName, String relationshipType, String relationshipGUID, String methodName)
      Create an audit log record to document that an external metadata source has created a relationship.
      Parameters:
      scopeGUID - unique identifier of the element representing the scope
      scopeQualifiedName - unique name of the element representing the scope
      relationshipType - type of relationship
      relationshipGUID - unique identifier for the relationship
      methodName - calling method
    • logRelationshipRemoval

      public void logRelationshipRemoval(String scopeGUID, String scopeQualifiedName, String relationshipType, String end1GUID, String end1TypeName, String end2GUID, String end2TypeName, String methodName)
      Create an audit log record to document that an external metadata source has removed a relationship.
      Parameters:
      scopeGUID - unique identifier of the element representing the scope
      scopeQualifiedName - unique name of the element representing the scope
      relationshipType - type of relationship
      end1GUID - unique identifier for the entity at end 1 of the relationship
      end1TypeName - type of the entity at end 1 of the relationship
      end2GUID - unique identifier for the entity at end 2 of the relationship
      end2TypeName - type of the entity at end 2 of the relationship
      methodName - calling method
    • removeExternalIdentifier

      public void removeExternalIdentifier(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, String identifier, String identifierParameterName, int identifierKeyPattern, String identifierDescription, String identifierUsage, String identifierSource, Map<String,String> identifierMappingProperties, String scopeGUID, String scopeGUIDParameterName, String scopeQualifiedName, String scopeTypeName, int permittedSynchronization, String synchronizationDescription, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, UserNotAuthorizedException, PropertyServerException
      Remove the ExternalIdentifier for the supplied element. The open metadata element is not affected.
      Parameters:
      userId - calling userId
      elementGUID - unique identifier of the open metadata element to link to the external identifier
      elementGUIDParameterName - parameter supplying elementGUID
      elementTypeName - type of the element
      identifier - identifier from the third party technology (scope)
      identifierParameterName - name of parameter supplying identifier
      identifierKeyPattern - type of key pattern used in the third party technology (typically local key)
      identifierDescription - name of the identifier in the third party technology
      identifierUsage - usage information from the connector/client supplying the identifier
      identifierSource - name of the connector/client supplying the identifier
      identifierMappingProperties - additional properties to help with the synchronization
      scopeGUID - unique identifier of the software capability that represents the third metadata source
      scopeGUIDParameterName - parameter supplying scopeGUID
      scopeQualifiedName - qualified name from the entity that
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      permittedSynchronization - direction of synchronization
      synchronizationDescription - optional description of the synchronization in progress (augments the description in the permitted synchronization enum)
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - when should the elements be effected for - null is anytime; new Date() is now
      methodName - calling method
      Throws:
      InvalidParameterException - one of the parameters is invalid
      UserNotAuthorizedException - the user is not authorized to issue this request
      PropertyServerException - there is a problem reported in the open metadata server(s)
    • confirmSynchronization

      public EntityDetail confirmSynchronization(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, String identifier, String identifierParameterName, String scopeGUID, String scopeGUIDParameterName, String scopeQualifiedName, String scopeTypeName, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, UserNotAuthorizedException, PropertyServerException
      Confirm that the values of a particular metadata element have been synchronized. This is important from an audit points of view, and to allow bidirectional updates of metadata using optimistic locking.
      Parameters:
      userId - calling user
      elementGUID - unique identifier (GUID) of this element in open metadata
      elementGUIDParameterName - parameter supplying elementGUID
      elementTypeName - type of element being mapped
      identifier - unique identifier of this element in the external asset manager
      identifierParameterName - parameter supplying identifier
      scopeGUID - unique identifier of software capability representing the caller
      scopeGUIDParameterName - parameter name supplying scopeGUID
      scopeQualifiedName - unique name of the scope
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for (null for any time, new Date() for now)
      methodName - calling method
      Returns:
      the identifier's entity
      Throws:
      InvalidParameterException - one of the parameters is invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server
    • getExternalIdentifiersForElement

      public List<EXTERNAL_ID> getExternalIdentifiersForElement(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, List<String> serviceSupportedZones, int startingFrom, int pageSize, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, PropertyServerException, UserNotAuthorizedException
      Return the external identifiers attached to a referenceable by the ExternalIdLink.
      Parameters:
      userId - calling user
      elementGUID - identifier for the entity that the identifier is attached to
      elementGUIDParameterName - name of parameter supplying the GUID
      elementTypeName - name of the type of object being attached to
      serviceSupportedZones - supported zones for calling service
      startingFrom - where to start from in the list
      pageSize - maximum number of results that can be returned
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for
      methodName - calling method
      Returns:
      list of retrieved objects or null if none found
      Throws:
      InvalidParameterException - the input properties are invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server
    • getExternalIdentifiersForScope

      public List<EXTERNAL_ID> getExternalIdentifiersForScope(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, String scopeGUID, String scopeTypeName, String scopeQualifiedName, boolean forLineage, boolean forDuplicateProcessing, int startingFrom, int pageSize, Date effectiveTime, String methodName) throws InvalidParameterException, PropertyServerException, UserNotAuthorizedException
      Return the external identifiers attached to a referenceable by the ExternalIdLink.
      Parameters:
      userId - calling user
      elementGUID - identifier for the entity that the identifier is attached to
      elementGUIDParameterName - name of parameter supplying the GUID
      elementTypeName - name of the type of object being attached to
      scopeGUID - unique identifier of the software capability that represents the third metadata source
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      scopeQualifiedName - unique name of the software capability that represents the third metadata source
      startingFrom - where to start from in the list
      pageSize - maximum number of results that can be returned
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for
      methodName - calling method
      Returns:
      list of retrieved objects or null if none found
      Throws:
      InvalidParameterException - the input properties are invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server
    • getExternalIdentifiersForScope

      public List<EXTERNAL_ID> getExternalIdentifiersForScope(String userId, String elementGUID, String elementGUIDParameterName, String elementTypeName, List<String> serviceSupportedZones, String scopeGUID, String scopeTypeName, String scopeQualifiedName, int startingFrom, int pageSize, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, PropertyServerException, UserNotAuthorizedException
      Return the external identifiers attached to a referenceable by the ExternalIdLink.
      Parameters:
      userId - calling user
      elementGUID - identifier for the entity that the identifier is attached to
      elementGUIDParameterName - name of parameter supplying the GUID
      elementTypeName - name of the type of object being attached to
      serviceSupportedZones - supported zones for calling service
      scopeGUID - unique identifier of the software capability that represents the third metadata source
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      scopeQualifiedName - unique name of the software capability that represents the third party metadata source
      startingFrom - where to start from in the list
      pageSize - maximum number of results that can be returned
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for
      methodName - calling method
      Returns:
      list of retrieved objects or null if none found
      Throws:
      InvalidParameterException - the input properties are invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server
    • getElementEntitiesForScope

      public List<EntityDetail> getElementEntitiesForScope(String userId, String scopeGUID, String scopeParameterName, String scopeTypeName, String requestedTypeName, int startingFrom, int pageSize, Date effectiveTime, boolean forLineage, boolean forDuplicateProcessing, String methodName) throws InvalidParameterException, UserNotAuthorizedException, PropertyServerException
      Return the list of entities for open metadata elements of an open metadata type that are associated with an external identifier in a particular scope.
      Parameters:
      userId - calling user
      scopeGUID - unique identifier of software capability representing the caller
      scopeParameterName - unique name of software capability representing the caller
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      requestedTypeName - unique type name of the elements in the external asset manager
      startingFrom - where to start from in the list
      pageSize - maximum number of results that can be returned
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      effectiveTime - the time that the retrieved elements must be effective for (null for any time, new Date() for now)
      methodName - calling method
      Returns:
      list of element headers
      Throws:
      InvalidParameterException - one of the parameters is invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server
    • getElementsForExternalIdentifier

      public List<OPEN_METADATA_ELEMENT_HEADER> getElementsForExternalIdentifier(String userId, String scopeGUID, String scopeParameterName, String scopeTypeName, String scopeQualifiedName, String externalIdentifier, int startingFrom, int pageSize, boolean forLineage, boolean forDuplicateProcessing, Date effectiveTime, String methodName) throws InvalidParameterException, UserNotAuthorizedException, PropertyServerException
      Return the list of headers for open metadata elements that are associated with a particular external identifier. It is necessary to navigate to the externalIdentifier from the scope.
      Parameters:
      userId - calling user
      scopeGUID - unique identifier of software capability representing the caller
      scopeParameterName - unique name of software capability representing the caller
      scopeTypeName - specific type name of the software capability that represents the third party metadata source
      scopeQualifiedName - unique name of the software capability that represents the third party metadata source
      externalIdentifier - unique identifier of this element in the external asset manager
      startingFrom - where to start from in the list
      pageSize - maximum number of results that can be returned
      effectiveTime - when should the elements be effected for - null is anytime; new Date() is now
      forLineage - return elements marked with the Memento classification?
      forDuplicateProcessing - do not merge elements marked as duplicates?
      methodName - calling method
      Returns:
      list of element headers
      Throws:
      InvalidParameterException - one of the parameters is invalid
      UserNotAuthorizedException - user not authorized to issue this request
      PropertyServerException - problem accessing the property server