Package org.odpi.openmetadata.frameworks.integration.dcat.mapping

Class DcatMapper

java.lang.Object

org.odpi.openmetadata.frameworks.integration.dcat.mapping.DcatMappingBase

org.odpi.openmetadata.frameworks.integration.dcat.mapping.DcatMapper

public class DcatMapper
extends DcatMappingBase

DcatMapper catalogs the resources described in a DCAT document as open metadata elements. Each resource is matched to an existing element through a qualified name built from the resource's IRI (or its identifier or title if it has no IRI), so sending the same description again updates the elements rather than creating new ones.

Field Summary

Fields inherited from class org.odpi.openmetadata.frameworks.integration.dcat.mapping.DcatMappingBase

ACCESS_RIGHTS, ACCESS_SERVICES_JSON, ACCESS_URL, ACCRUAL_PERIODICITY, ADDITIONAL_PROPERTY_PREFIX, BYTE_SIZE, CATALOG_KIND, CATALOG_QUALIFIED_NAME_PREFIX, CHECKSUM_ALGORITHM, CHECKSUM_VALUE, COMPRESS_FORMAT, CONFORMS_TO_JSON, CONFORMS_TO_LABEL, CONTACT_POINT_JSON, context, CREATORS_JSON, DATA_SERVICE_KIND, DATA_SERVICE_QUALIFIED_NAME_PREFIX, DATASET_KIND, DATASET_QUALIFIED_NAME_PREFIX, DATASET_SERIES_KIND, DESCRIPTION_TRANSLATIONS_JSON, DISTRIBUTION_KIND, DISTRIBUTION_QUALIFIED_NAME_PREFIX, DOCUMENTATION_LABEL, DOWNLOAD_URL, ENDPOINT_DESCRIPTIONS_JSON, FORMAT, GENERATED_IRI_PREFIX, HOMEPAGE, IDENTIFIERS_JSON, IRI, ISSUED, KIND, LANGUAGES_JSON, LICENSE_JSON, MEDIA_TYPE, MODIFIED, OTHER_PROPERTIES_JSON, PACKAGE_FORMAT, PREVIOUS_VERSION, propertyHelper, PUBLISHER_JSON, RESOURCE_TYPE, RIGHTS, SEPARATOR, SPATIAL_JSON, SPATIAL_RESOLUTION_IN_METERS, STATUS, TEMPORAL_JSON, TEMPORAL_RESOLUTION, THEME_TAXONOMIES_JSON, THEMES_JSON, TITLE_TRANSLATIONS_JSON, VERSION_NOTES

Constructor Summary

Constructors

Constructor	Description
DcatMapper(ConnectorContextBase context)	Constructor

Method Summary

Modifier and Type	Method	Description
DcatMappingResult	catalogueDocument(DcatDocument document, String source)	Catalog the catalogs, datasets, dataset series and data services described in a DCAT document.
static String	getResourceKey(DcatResource resource)	Return the value that identifies a resource: its IRI, or failing that its first identifier, or failing that its title.

Methods inherited from class org.odpi.openmetadata.frameworks.integration.dcat.mapping.DcatMappingBase

findElement, findElementGUID, getAdditionalProperties, getBean, getBeanList, getLinkedElementGUIDs, getRelationships, getStringList, getStringProperty, putIfPresent, toJSON

Methods inherited from class java.lang.Object

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

Constructor Details

DcatMapper

public DcatMapper(ConnectorContextBase context)

Constructor

Parameters:

context - the connector context that provides access to open metadata

Method Details

getResourceKey

public static String getResourceKey(DcatResource resource)

Return the value that identifies a resource: its IRI, or failing that its first identifier, or failing that its title.

Parameters:

resource - resource from a DCAT document

Returns:

identifying string or null if the resource has none of these values

catalogueDocument

public DcatMappingResult catalogueDocument(DcatDocument document,
 String source)
                                    throws InvalidParameterException,
PropertyServerException,
UserNotAuthorizedException

Catalog the catalogs, datasets, dataset series and data services described in a DCAT document.

Parameters:

document - document to catalog

source - name of the caller - used to describe where the metadata came from

Returns:

description of the elements that were created or updated

Throws:

InvalidParameterException - one of the parameters is null or invalid.

PropertyServerException - a problem retrieving information from the property server(s).

UserNotAuthorizedException - the requesting user is not authorized to issue this request.