Package org.wikidata.wdtk.rdf

Class AbstractRdfConverter

java.lang.Object

org.wikidata.wdtk.rdf.AbstractRdfConverter

Direct Known Subclasses:

RdfConverter

public abstract class AbstractRdfConverter
extends Object

This class provides functions to convert objects of wdtk-datamodel in a rdf graph.

Author:

Michael Günther

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	AbstractRdfConverter.TermKind

Constructor Summary

Constructors

Constructor	Description
AbstractRdfConverter(RdfWriter rdfWriter, Sites sites, PropertyRegister propertyRegister)

Method Summary

Modifier and Type	Method	Description
void	finishDocument()	Writes all buffered triples and finishes writing a document.
static String	getDatatypeIri(DatatypeIdValue datatype)
static org.eclipse.rdf4j.model.Value	getMonolingualTextValueLiteral(MonolingualTextValue value, RdfWriter rdfWriter)
void	writeBasicDeclarations()	Writes OWL declarations for all basic vocabulary elements used in the dump.
void	writeClaim(org.eclipse.rdf4j.model.Resource claimResource, Claim claim)
void	writeDocumentTerms(TermedDocument document)
void	writeDocumentType(org.eclipse.rdf4j.model.Resource subject, org.eclipse.rdf4j.model.IRI type)
void	writeFullStatement(Statement statement, boolean best)
void	writeInterPropertyLinks(PropertyDocument document)	Writes triples which connect properties with their corresponding rdf properties for statements, simple statements, qualifiers, reference attributes and values.
void	writeItemDocument(ItemDocument document)
void	writeNamespaceDeclarations()	Writes all namespace declarations used in the dump, for example wikibase: or schema:.
void	writeOWLDeclarations()
void	writePropertyDatatype(PropertyDocument document)
void	writePropertyDocument(PropertyDocument document)
void	writeReferences(org.eclipse.rdf4j.model.Resource statementResource, List<? extends Reference> references)
void	writeSimpleStatement(Statement statement)
void	writeSiteLinks(org.eclipse.rdf4j.model.Resource subject, Map<String,SiteLink> siteLinks)
void	writeStatement(Statement statement, boolean best)
void	writeStatementRankTriple(org.eclipse.rdf4j.model.Resource subject, StatementRank rank, boolean best)	Writes a triple for the StatementRank of a Statement to the dump.
void	writeStatements(StatementDocument statementDocument)
void	writeTermTriples(org.eclipse.rdf4j.model.Resource subject, AbstractRdfConverter.TermKind kind, Collection<MonolingualTextValue> terms)

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractRdfConverter

public AbstractRdfConverter(RdfWriter rdfWriter,
 Sites sites,
 PropertyRegister propertyRegister)

Method Details

writeBasicDeclarations

public void writeBasicDeclarations()
                            throws org.eclipse.rdf4j.rio.RDFHandlerException

Writes OWL declarations for all basic vocabulary elements used in the dump. Example of the triples written by this method: wikibase:propertyType rdf:type owl:ObjectProperty

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeNamespaceDeclarations

public void writeNamespaceDeclarations()
                                throws org.eclipse.rdf4j.rio.RDFHandlerException

Writes all namespace declarations used in the dump, for example wikibase: or schema:.

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

finishDocument

public void finishDocument()
                    throws org.eclipse.rdf4j.rio.RDFHandlerException

Writes all buffered triples and finishes writing a document. This will take care of writing auxiliary triples that got buffered during serialization, such as OWL declarations, references and auxiliary triples for complex values.

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeOWLDeclarations

public void writeOWLDeclarations()

writeDocumentType

public void writeDocumentType(org.eclipse.rdf4j.model.Resource subject,
 org.eclipse.rdf4j.model.IRI type)

writeItemDocument

public void writeItemDocument(ItemDocument document)
                       throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writePropertyDatatype

public void writePropertyDatatype(PropertyDocument document)

writePropertyDocument

public void writePropertyDocument(PropertyDocument document)
                           throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeInterPropertyLinks

public void writeInterPropertyLinks(PropertyDocument document)
                             throws org.eclipse.rdf4j.rio.RDFHandlerException

Writes triples which connect properties with their corresponding rdf properties for statements, simple statements, qualifiers, reference attributes and values.

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeDocumentTerms

public void writeDocumentTerms(TermedDocument document)
                        throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeTermTriples

public void writeTermTriples(org.eclipse.rdf4j.model.Resource subject,
 AbstractRdfConverter.TermKind kind,
 Collection<MonolingualTextValue> terms)
                      throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeStatements

public void writeStatements(StatementDocument statementDocument)
                     throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeStatement

public void writeStatement(Statement statement,
 boolean best)
                    throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeFullStatement

public void writeFullStatement(Statement statement,
 boolean best)
                        throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeSimpleStatement

public void writeSimpleStatement(Statement statement)

writeStatementRankTriple

public void writeStatementRankTriple(org.eclipse.rdf4j.model.Resource subject,
 StatementRank rank,
 boolean best)

Writes a triple for the StatementRank of a Statement to the dump. If this is a best-rank statement, also writes a best rank triple.

Parameters:

subject - The IRI of the statement

rank - The rank of the statement

best - True if this statement is a best-rank statement

writeReferences

public void writeReferences(org.eclipse.rdf4j.model.Resource statementResource,
 List<? extends Reference> references)
                     throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

writeClaim

public void writeClaim(org.eclipse.rdf4j.model.Resource claimResource,
 Claim claim)

writeSiteLinks

public void writeSiteLinks(org.eclipse.rdf4j.model.Resource subject,
 Map<String,SiteLink> siteLinks)
                    throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

getMonolingualTextValueLiteral

public static org.eclipse.rdf4j.model.Value getMonolingualTextValueLiteral(MonolingualTextValue value,
 RdfWriter rdfWriter)

getDatatypeIri

public static String getDatatypeIri(DatatypeIdValue datatype)