private Optional<ImmutableFunctionalTerm> getFirstFunctionalTerm(TargetAtom targetAtom) { return targetAtom.getSubstitution().getImmutableMap().values().stream() .findFirst() .filter(t -> t instanceof ImmutableFunctionalTerm) .map(t -> (ImmutableFunctionalTerm) t); }
public SQLPPMapping generatePPMapping() { ImmutableList<SQLPPTriplesMap> triplesMaps = ImmutableList.copyOf(triplesMapMap.values()); try { UriTemplateMatcher uriTemplateMatcher = UriTemplateMatcher.create( triplesMaps.stream() .flatMap(ax -> ax.getTargetAtoms().stream()) .flatMap(targetAtom -> targetAtom.getSubstitution().getImmutableMap().values().stream()) .filter(t -> t instanceof ImmutableFunctionalTerm) .map(t -> (ImmutableFunctionalTerm) t), termFactory); return ppMappingFactory.createSQLPreProcessedMapping(triplesMaps, // TODO: give an immutable prefix manager!! specificationFactory.createMetadata(prefixManager, uriTemplateMatcher)); /** * No mapping so should never happen */ } catch(DuplicateMappingException e) { throw new RuntimeException("A DuplicateMappingException has been thrown while no mapping has been given." + "What is going on? Message: " + e.getMessage()); } }
public SQLPPMapping createMappings() { OntopMappingConfiguration defaultConfiguration = OntopMappingConfiguration.defaultBuilder() .build(); SpecificationFactory specificationFactory = defaultConfiguration.getInjector().getInstance(SpecificationFactory.class); PrefixManager prefixManager = specificationFactory.createPrefixManager(ImmutableMap.of()); ImmutableList<SQLPPTriplesMap> mappingAxioms = dataRepository.getMappings(); UriTemplateMatcher uriTemplateMatcher = UriTemplateMatcher.create( mappingAxioms.stream() .flatMap(ax -> ax.getTargetAtoms().stream()) .flatMap(atom -> atom.getSubstitution().getImmutableMap().values().stream()) .filter(t -> t instanceof ImmutableFunctionalTerm) .map(t -> (ImmutableFunctionalTerm) t), termFactory); try { return new SQLPPMappingImpl(mappingAxioms, specificationFactory.createMetadata(prefixManager, uriTemplateMatcher)); } catch (DuplicateMappingException e) { throw new IllegalStateException(e.getMessage()); } } }
private SQLPPMapping parse(R2RMLManager manager) throws DuplicateMappingException, InvalidMappingException { try { //TODO: make the R2RMLManager simpler. ImmutableList<SQLPPTriplesMap> sourceMappings = manager.getMappings(manager.getModel()); UriTemplateMatcher uriTemplateMatcher = UriTemplateMatcher.create( sourceMappings.stream() .flatMap(ax -> ax.getTargetAtoms().stream()) .flatMap(atom -> atom.getSubstitution().getImmutableMap().values().stream()) .filter(t -> t instanceof ImmutableFunctionalTerm) .map(t -> (ImmutableFunctionalTerm) t), termFactory); //TODO: try to extract prefixes from the R2RML mappings PrefixManager prefixManager = specificationFactory.createPrefixManager(ImmutableMap.of()); MappingMetadata mappingMetadata = specificationFactory.createMetadata(prefixManager, uriTemplateMatcher); return ppMappingFactory.createSQLPreProcessedMapping(sourceMappings, mappingMetadata); } catch (InvalidR2RMLMappingException e) { throw new InvalidMappingException(e.getMessage()); } }
mappingAxioms.stream() .flatMap(ax -> ax.getTargetAtoms().stream()) .flatMap(atom -> atom.getSubstitution().getImmutableMap().values().stream()) .filter(t -> t instanceof ImmutableFunctionalTerm) .map(t -> (ImmutableFunctionalTerm) t),
ImmutableSubstitution<ImmutableTerm> newSubstitution = m.target.getSubstitution() .composeWith(substitutionFactory.getSubstitution(predicateVariable, predicateTerm));
a.getSubstitution().getImmutableMap().entrySet().stream() .map(e -> e.getKey().equals(predicateVariable) ? Maps.immutableEntry(predicateVariable,
/** * TODO: describe */ public IQ convertDatalogRule(CQIE datalogRule, Collection<Predicate> tablePredicates, Optional<ImmutableQueryModifiers> optionalModifiers, IntermediateQueryFactory iqFactory) throws DatalogProgram2QueryConverterImpl.InvalidDatalogProgramException { TargetAtom targetAtom = datalogConversionTools.convertFromDatalogDataAtom(datalogRule.getHead()); DistinctVariableOnlyDataAtom projectionAtom = targetAtom.getProjectionAtom(); ConstructionNode topConstructionNode = iqFactory.createConstructionNode(projectionAtom.getVariables(), targetAtom.getSubstitution()); List<Function> bodyAtoms = List.iterableList(datalogRule.getBody()); if (bodyAtoms.isEmpty()) { return createFact(topConstructionNode, optionalModifiers, projectionAtom, iqFactory); } else { return createDefinition(topConstructionNode, optionalModifiers, projectionAtom, tablePredicates, bodyAtoms, iqFactory); } }
ImmutableSubstitution<ImmutableTerm> bindings = targetAtom.getSubstitution(); DataAtom dataAtom = bindings.applyToDataAtom(targetAtom.getProjectionAtom()); return datalogConversionTools.createDataNode(iqFactory, dataAtom, tablePredicates);