Package org.odpi.openmetadata.adapters.connectors.mendel

Class MendelDuplicateInstanceRemover

java.lang.Object

org.odpi.openmetadata.frameworks.auditlog.AuditLoggingBase

org.odpi.openmetadata.adapters.connectors.mendel.MendelDuplicateInstanceRemover

public class MendelDuplicateInstanceRemover
extends AuditLoggingBase

MendelDuplicateInstanceRemover removes the exact duplicates that a process creates when it adds the same thing more than once - typically a connector that re-links or re-attaches everything each time it catalogues a document. Unlike the peer duplicates that the rest of Mendel manages, these instances are identical apart from their unique identifiers and audit headers, so there is nothing to decide: the oldest is kept and the rest are deleted using the server's default delete method.

• Duplicate relationships: relationships of the same type that connect the same two elements and have the same properties and effectivity dates.
• Duplicate attached elements: elements of the same type with the same properties, attached to the same element (at end 1) through the same type of relationship (with the same relationship properties), and anchored to that element. The anchor test means only elements that belong to the element are removed - a shared element is never deleted. Deleting the element also deletes its attachment relationship.

The comparison is strict: every property must match. Elements that carry a unique name, such as a Referenceable's qualifiedName, therefore never match each other.

Field Summary

Fields inherited from class org.odpi.openmetadata.frameworks.auditlog.AuditLoggingBase

auditLog

Constructor Summary

Constructors

Constructor	Description
MendelDuplicateInstanceRemover(IntegrationContext integrationContext, PropertyHelper propertyHelper, String connectorName, boolean reportOnly, AuditLog auditLog)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	removeDuplicateAttachments(List<String> attachmentTypeNames)	Remove the duplicate elements attached through each of the requested relationship types.
void	removeDuplicateRelationships(List<String> relationshipTypeNames)	Remove the duplicate relationships of each of the requested types.

Methods inherited from class org.odpi.openmetadata.frameworks.auditlog.AuditLoggingBase

logExceptionRecord, logExceptionRecord, logRecord, logRecord

Methods inherited from class java.lang.Object

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

Constructor Details

MendelDuplicateInstanceRemover

public MendelDuplicateInstanceRemover(IntegrationContext integrationContext,
 PropertyHelper propertyHelper,
 String connectorName,
 boolean reportOnly,
 AuditLog auditLog)

Constructor.

Parameters:

integrationContext - context giving access to open metadata

propertyHelper - helper for working with element properties

connectorName - name of the calling connector - used in messages

reportOnly - report the duplicates rather than delete them

auditLog - logging destination

Method Details

removeDuplicateRelationships

public void removeDuplicateRelationships(List<String> relationshipTypeNames)

Remove the duplicate relationships of each of the requested types. A failure with one type is logged and the next type is processed.

Parameters:

relationshipTypeNames - relationship types to process

removeDuplicateAttachments

public void removeDuplicateAttachments(List<String> attachmentTypeNames)

Remove the duplicate elements attached through each of the requested relationship types. Only the elements at end 1 that have more than one attachment of the type are retrieved. A failure with one type is logged and the next type is processed.

Parameters:

attachmentTypeNames - relationship types to process