Java Code Examples for org.eclipse.rdf4j.query.algebra.StatementPattern#replaceWith()
The following examples show how to use
org.eclipse.rdf4j.query.algebra.StatementPattern#replaceWith() .
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Example 1
| Source File: TransitivePropertyVisitor.java From rya with Apache License 2.0 | 6 votes |
|
@Override
protected void meetSP(final StatementPattern node) throws Exception {
final StatementPattern sp = node.clone();
final Var predVar = sp.getPredicateVar();
final IRI pred = (IRI) predVar.getValue();
final String predNamespace = pred.getNamespace();
final Var objVar = sp.getObjectVar();
final Var cntxtVar = sp.getContextVar();
if (objVar != null &&
!RDF.NAMESPACE.equals(predNamespace) &&
!SESAME.NAMESPACE.equals(predNamespace) &&
!RDFS.NAMESPACE.equals(predNamespace)
&& !EXPANDED.equals(cntxtVar)) {
final IRI transPropIri = (IRI) predVar.getValue();
if (inferenceEngine.isTransitiveProperty(transPropIri)) {
node.replaceWith(new TransitivePropertySP(sp.getSubjectVar(), sp.getPredicateVar(), sp.getObjectVar(), sp.getContextVar()));
}
}
}
Example 2
| Source File: ReflexivePropertyVisitor.java From rya with Apache License 2.0 | 6 votes |
|
/**
* Check whether any solution for the {@link StatementPattern} could be derived from
* reflexive property inference, and if so, replace the pattern with a union of itself and the
* reflexive solution.
*/
@Override
protected void meetSP(StatementPattern node) throws Exception {
// Only applies when the predicate is defined and reflexive
final Var predVar = node.getPredicateVar();
if (predVar.getValue() != null && inferenceEngine.isReflexiveProperty((IRI) predVar.getValue())) {
final StatementPattern originalSP = node.clone();
// The reflexive solution is a ZeroLengthPath between subject and
// object: they can be matched to one another, whether constants or
// variables.
final Var subjVar = node.getSubjectVar();
final Var objVar = node.getObjectVar();
final ZeroLengthPath reflexiveSolution = new ZeroLengthPath(subjVar, objVar);
node.replaceWith(new InferUnion(originalSP, reflexiveSolution));
}
}
Example 3
| Source File: EmptyPatternOptimizer.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
@Override
public void meet(StatementPattern node) throws RepositoryException {
Resource subj = (Resource) node.getSubjectVar().getValue();
IRI pred = (IRI) node.getPredicateVar().getValue();
Value obj = node.getObjectVar().getValue();
Resource[] ctx = getContexts(node.getContextVar());
for (RepositoryConnection member : members) {
RepositoryBloomFilter bloomFilter = MoreObjects.firstNonNull(bloomFilters.apply(member.getRepository()),
AccurateRepositoryBloomFilter.INCLUDE_INFERRED_INSTANCE);
if (bloomFilter.mayHaveStatement(member, subj, pred, obj, ctx)) {
return;
}
}
node.replaceWith(new EmptySet());
}
Example 4
| Source File: InverseOfVisitor.java From rya with Apache License 2.0 | 5 votes |
|
@Override
protected void meetSP(StatementPattern node) throws Exception {
StatementPattern sp = node.clone();
final Var predVar = sp.getPredicateVar();
IRI pred = (IRI) predVar.getValue();
String predNamespace = pred.getNamespace();
final Var objVar = sp.getObjectVar();
final Var cntxtVar = sp.getContextVar();
if (objVar != null &&
!RDF.NAMESPACE.equals(predNamespace) &&
!SESAME.NAMESPACE.equals(predNamespace) &&
!RDFS.NAMESPACE.equals(predNamespace)
&& !EXPANDED.equals(cntxtVar)) {
/**
*
* { ?a ?pred ?b .}\n" +
" UNION " +
" { ?b ?pred ?a }
*/
IRI predIri = (IRI) predVar.getValue();
IRI invPropIri = inferenceEngine.findInverseOf(predIri);
if (invPropIri != null) {
Var subjVar = sp.getSubjectVar();
Union union = new InferUnion();
union.setLeftArg(sp);
union.setRightArg(new StatementPattern(objVar, new Var(predVar.getName(), invPropIri), subjVar, cntxtVar));
node.replaceWith(union);
}
}
}
Example 5
| Source File: IntersectionOfVisitor.java From rya with Apache License 2.0 | 5 votes |
|
@Override
protected void meetSP(final StatementPattern node) throws Exception {
final StatementPattern currentNode = node.clone();
final Var subVar = node.getSubjectVar();
final Var predVar = node.getPredicateVar();
final Var objVar = node.getObjectVar();
final Var conVar = node.getContextVar();
if (predVar != null && objVar != null && objVar.getValue() != null && RDF.TYPE.equals(predVar.getValue()) && !EXPANDED.equals(conVar)) {
final List<Set<Resource>> intersections = inferenceEngine.getIntersectionsImplying((IRI) objVar.getValue());
if (intersections != null && !intersections.isEmpty()) {
final List<TupleExpr> joins = new ArrayList<>();
for (final Set<Resource> intersection : intersections) {
final Set<Resource> sortedIntersection = new TreeSet<>(new ResourceComparator());
sortedIntersection.addAll(intersection);
// Create a join tree of all statement patterns in the
// current intersection.
final TupleExpr joinTree = createJoinTree(new ArrayList<>(sortedIntersection), subVar, conVar);
if (joinTree != null) {
joins.add(joinTree);
}
}
if (!joins.isEmpty()) {
// Combine all the intersection join trees for the type
// together into a union tree. This will be a join tree if
// only one intersection exists.
final TupleExpr unionTree = createUnionTree(joins);
// Union the above union tree of intersections with the
// original node.
final Union union = new InferUnion(unionTree, currentNode);
node.replaceWith(union);
log.trace("Replacing node with inferred intersection union: " + union);
}
}
}
}
Example 6
| Source File: SomeValuesFromVisitor.java From rya with Apache License 2.0 | 5 votes |
|
/**
* Checks whether the StatementPattern is a type query whose solutions could be inferred by
* someValuesFrom inference, and if so, replaces the node with a union of itself and any
* possible inference.
*/
@Override
protected void meetSP(StatementPattern node) throws Exception {
final Var subjVar = node.getSubjectVar();
final Var predVar = node.getPredicateVar();
final Var objVar = node.getObjectVar();
// Only applies to type queries where the type is defined
if (predVar != null && RDF.TYPE.equals(predVar.getValue()) && objVar != null && objVar.getValue() instanceof Resource) {
final Resource typeToInfer = (Resource) objVar.getValue();
Map<Resource, Set<IRI>> relevantSvfRestrictions = inferenceEngine.getSomeValuesFromByRestrictionType(typeToInfer);
if (!relevantSvfRestrictions.isEmpty()) {
// We can infer the queried type if it is to a someValuesFrom restriction (or a
// supertype of one), and the node in question (subjVar) is the subject of a triple
// whose predicate is the restriction's property and whose object is an arbitrary
// node of the restriction's value type.
final Var valueTypeVar = new Var("t-" + UUID.randomUUID());
final Var svfPredVar = new Var("p-" + UUID.randomUUID());
final Var neighborVar = new Var("n-" + UUID.randomUUID());
neighborVar.setAnonymous(true);
final StatementPattern membershipPattern = new DoNotExpandSP(neighborVar,
new Var(RDF.TYPE.stringValue(), RDF.TYPE), valueTypeVar);
final StatementPattern valuePattern = new StatementPattern(subjVar, svfPredVar, neighborVar);
final InferJoin svfPattern = new InferJoin(membershipPattern, valuePattern);
// Use a FixedStatementPattern to contain the appropriate (predicate, value type)
// pairs, and check each one against the general pattern.
final FixedStatementPattern svfPropertyTypes = new FixedStatementPattern(svfPredVar,
new Var(OWL.SOMEVALUESFROM.stringValue(), OWL.SOMEVALUESFROM), valueTypeVar);
for (Resource svfValueType : relevantSvfRestrictions.keySet()) {
for (IRI svfProperty : relevantSvfRestrictions.get(svfValueType)) {
svfPropertyTypes.statements.add(new NullableStatementImpl(svfProperty,
OWL.SOMEVALUESFROM, svfValueType));
}
}
final InferJoin svfInferenceQuery = new InferJoin(svfPropertyTypes, svfPattern);
node.replaceWith(new InferUnion(node.clone(), svfInferenceQuery));
}
}
}
Example 7
| Source File: AllValuesFromVisitor.java From rya with Apache License 2.0 | 5 votes |
|
/**
* Checks whether the StatementPattern is a type query whose solutions could be inferred
* by allValuesFrom inference, and if so, replaces the node with a union of itself and any
* possible inference.
*/
@Override
protected void meetSP(StatementPattern node) throws Exception {
final Var subjVar = node.getSubjectVar();
final Var predVar = node.getPredicateVar();
final Var objVar = node.getObjectVar();
// Only applies to type queries where the type is defined
if (predVar != null && RDF.TYPE.equals(predVar.getValue()) && objVar != null && objVar.getValue() instanceof Resource) {
final Resource typeToInfer = (Resource) objVar.getValue();
Map<Resource, Set<IRI>> relevantAvfRestrictions = inferenceEngine.getAllValuesFromByValueType(typeToInfer);
if (!relevantAvfRestrictions.isEmpty()) {
// We can infer the queried type if, for an allValuesFrom restriction type
// associated with the queried type, some anonymous neighboring node belongs to the
// restriction type and has the node in question (subjVar) as a value for the
// restriction's property.
final Var avfTypeVar = new Var("t-" + UUID.randomUUID());
final Var avfPredVar = new Var("p-" + UUID.randomUUID());
final Var neighborVar = new Var("n-" + UUID.randomUUID());
neighborVar.setAnonymous(true);
final StatementPattern membershipPattern = new DoNotExpandSP(neighborVar,
new Var(RDF.TYPE.stringValue(), RDF.TYPE), avfTypeVar);
final StatementPattern valuePattern = new StatementPattern(neighborVar, avfPredVar, subjVar);
final InferJoin avfPattern = new InferJoin(membershipPattern, valuePattern);
// Use a FixedStatementPattern to contain the appropriate (restriction, predicate)
// pairs, and check each one against the general pattern.
final FixedStatementPattern avfPropertyTypes = new FixedStatementPattern(avfTypeVar,
new Var(OWL.ONPROPERTY.stringValue(), OWL.ONPROPERTY), avfPredVar);
for (Resource avfRestrictionType : relevantAvfRestrictions.keySet()) {
for (IRI avfProperty : relevantAvfRestrictions.get(avfRestrictionType)) {
avfPropertyTypes.statements.add(new NullableStatementImpl(avfRestrictionType,
OWL.ONPROPERTY, avfProperty));
}
}
final InferJoin avfInferenceQuery = new InferJoin(avfPropertyTypes, avfPattern);
node.replaceWith(new InferUnion(node.clone(), avfInferenceQuery));
}
}
}
Example 8
| Source File: SymmetricPropertyVisitor.java From rya with Apache License 2.0 | 5 votes |
|
@Override
protected void meetSP(StatementPattern node) throws Exception {
StatementPattern sp = node.clone();
final Var predVar = sp.getPredicateVar();
IRI pred = (IRI) predVar.getValue();
String predNamespace = pred.getNamespace();
final Var objVar = sp.getObjectVar();
final Var cntxtVar = sp.getContextVar();
if (objVar != null &&
!RDF.NAMESPACE.equals(predNamespace) &&
!SESAME.NAMESPACE.equals(predNamespace) &&
!RDFS.NAMESPACE.equals(predNamespace)
&& !EXPANDED.equals(cntxtVar)) {
/**
*
* { ?a ?pred ?b .}\n" +
" UNION " +
" { ?b ?pred ?a }
*/
IRI symmPropIri = (IRI) predVar.getValue();
if(inferenceEngine.isSymmetricProperty(symmPropIri)) {
Var subjVar = sp.getSubjectVar();
Union union = new InferUnion();
union.setLeftArg(sp);
union.setRightArg(new StatementPattern(objVar, predVar, subjVar, cntxtVar));
node.replaceWith(union);
}
}
}
Example 9
| Source File: OneOfVisitor.java From rya with Apache License 2.0 | 5 votes |
|
@Override
protected void meetSP(final StatementPattern node) throws Exception {
final Var subVar = node.getSubjectVar();
final Var predVar = node.getPredicateVar();
final Var objVar = node.getObjectVar();
final Var conVar = node.getContextVar();
if (predVar != null && objVar != null && objVar.getValue() != null && objVar.getValue() instanceof Resource && RDF.TYPE.equals(predVar.getValue()) && !EXPANDED.equals(conVar)) {
final Resource object = (Resource) objVar.getValue();
if (inferenceEngine.isEnumeratedType(object)) {
final Set<BindingSet> solutions = new LinkedHashSet<>();
final Set<Resource> enumeration = inferenceEngine.getEnumeration(object);
for (final Resource enumType : enumeration) {
final QueryBindingSet qbs = new QueryBindingSet();
qbs.addBinding(subVar.getName(), enumType);
solutions.add(qbs);
}
if (!solutions.isEmpty()) {
final BindingSetAssignment enumNode = new BindingSetAssignment();
enumNode.setBindingSets(solutions);
node.replaceWith(enumNode);
log.trace("Replacing node with inferred one of enumeration: " + enumNode);
}
}
}
}
Example 10
| Source File: ServiceOptimizer.java From CostFed with GNU Affero General Public License v3.0 | 4 votes |
|
protected TupleExpr optimizeService(Service service) {
// check if there is a service uri given
if (service.getServiceRef().hasValue()) {
String serviceUri = service.getServiceRef().getValue().stringValue();
GenericInfoOptimizer serviceInfo = new GenericInfoOptimizer(queryInfo);
serviceInfo.optimize(service.getServiceExpr());
Endpoint e = getFedXEndpoint(serviceUri);
// endpoint is not in federation
if (e == null) {
// leave service as is, evaluate with Sesame code
return new FedXService(service, queryInfo);
}
StatementSource source = new StatementSource(e.getId(), StatementSourceType.REMOTE);
List<ExclusiveStatement> stmts = new ArrayList<ExclusiveStatement>();
// convert all statements to exclusive statements
for (List<StatementPattern> sts : serviceInfo.getStatements()) {
for (StatementPattern st : sts) {
ExclusiveStatement est = new ExclusiveStatement(st, source, queryInfo);
st.replaceWith(est);
stmts.add(est);
}
}
// check if we have a simple subquery now (i.e. only a simple BGP)
if (service.getArg() instanceof NJoin) {
NJoin j = (NJoin)service.getArg();
boolean simple = true;
for (TupleExpr t : j.getArgs()) {
if (!(t instanceof ExclusiveStatement)) {
simple = false;
break;
}
}
if (simple) {
return new ExclusiveGroup(stmts, source, queryInfo);
}
}
}
return new FedXService(service, queryInfo);
}
Example 11
| Source File: ServiceOptimizer.java From rdf4j with BSD 3-Clause "New" or "Revised" License | 4 votes |
|
protected TupleExpr optimizeService(Service service) {
// check if there is a service uri given
if (service.getServiceRef().hasValue()) {
String serviceUri = service.getServiceRef().getValue().stringValue();
GenericInfoOptimizer serviceInfo = new GenericInfoOptimizer(queryInfo);
serviceInfo.optimize(service.getServiceExpr());
Endpoint e = getFedXEndpoint(serviceUri);
// endpoint is not in federation
if (e == null) {
// leave service as is, evaluate with Sesame code
return new FedXService(service, queryInfo);
}
StatementSource source = new StatementSource(e.getId(), StatementSourceType.REMOTE);
List<ExclusiveStatement> stmts = new ArrayList<>();
// convert all statements to exclusive statements
for (StatementPattern st : serviceInfo.getStatements()) {
ExclusiveStatement est = new ExclusiveStatement(st, source, queryInfo);
st.replaceWith(est);
stmts.add(est);
}
// check if we have a simple subquery now (i.e. only a simple BGP)
if (service.getArg() instanceof ExclusiveStatement) {
return service.getArg();
}
if (service.getArg() instanceof NJoin) {
NJoin j = (NJoin) service.getArg();
boolean simple = true;
for (TupleExpr t : j.getArgs()) {
if (!(t instanceof ExclusiveStatement)) {
simple = false;
break;
}
}
if (simple) {
return new ExclusiveGroup(stmts, source, queryInfo);
}
}
}
return new FedXService(service, queryInfo);
}
Example 12
| Source File: SubPropertyOfVisitor.java From rya with Apache License 2.0 | 4 votes |
|
@Override
protected void meetSP(final StatementPattern node) throws Exception {
final StatementPattern sp = node.clone();
final Var predVar = sp.getPredicateVar();
final IRI pred = (IRI) predVar.getValue();
final String predNamespace = pred.getNamespace();
final Var objVar = sp.getObjectVar();
final Var cntxtVar = sp.getContextVar();
if (objVar != null &&
!RDF.NAMESPACE.equals(predNamespace) &&
!SESAME.NAMESPACE.equals(predNamespace) &&
!RDFS.NAMESPACE.equals(predNamespace)
&& !EXPANDED.equals(cntxtVar)) {
/**
*
* { ?subProp rdfs:subPropertyOf ub:worksFor . ?y ?subProp <http://www.Department0.University0.edu> }\n" +
" UNION " +
" { ?y ub:worksFor <http://www.Department0.University0.edu> }
*/
// String s = UUID.randomUUID().toString();
// Var subPropVar = new Var(s);
// StatementPattern subPropOf = new StatementPattern(subPropVar, new Var("c-" + s, SESAME.DIRECTSUBPROPERTYOF), predVar, EXPANDED);
// StatementPattern subPropOf2 = new StatementPattern(sp.getSubjectVar(), subPropVar, objVar, EXPANDED);
// InferJoin join = new InferJoin(subPropOf, subPropOf2);
// join.getProperties().put(InferConstants.INFERRED, InferConstants.TRUE);
// node.replaceWith(join);
// Collection<URI> parents = inferenceEngine.findParents(inferenceEngine.subPropertyOfGraph, (URI) predVar.getValue());
// if (parents != null && parents.size() > 0) {
// StatementPatterns statementPatterns = new StatementPatterns();
// statementPatterns.patterns.add(node);
// Var subjVar = node.getSubjectVar();
// for (IRI iri : parents) {
// statementPatterns.patterns.add(new StatementPattern(subjVar, new Var(predVar.getName(), iri), objVar));
// }
// node.replaceWith(statementPatterns);
// }
// if (parents != null && parents.size() > 0) {
// VarCollection vc = new VarCollection();
// vc.setName(predVar.getName());
// vc.values.add(predVar);
// for (IRI iri : parents) {
// vc.values.add(new Var(predVar.getName(), iri));
// }
// Var subjVar = node.getSubjectVar();
// node.replaceWith(new StatementPattern(subjVar, vc, objVar, node.getContextVar()));
// }
final IRI subprop_iri = (IRI) predVar.getValue();
final Set<IRI> parents = InferenceEngine.findParents(inferenceEngine.getSubPropertyOfGraph(), subprop_iri);
if (parents != null && parents.size() > 0) {
final String s = UUID.randomUUID().toString();
final Var typeVar = new Var(s);
final FixedStatementPattern fsp = new FixedStatementPattern(typeVar, new Var("c-" + s, RDFS.SUBPROPERTYOF), predVar, cntxtVar);
// fsp.statements.add(new NullableStatementImpl(subprop_uri, RDFS.SUBPROPERTYOF, subprop_uri));
//add self
parents.add(subprop_iri);
for (final IRI u : parents) {
fsp.statements.add(new NullableStatementImpl(u, RDFS.SUBPROPERTYOF, subprop_iri));
}
final StatementPattern rdfType = new DoNotExpandSP(sp.getSubjectVar(), typeVar, sp.getObjectVar(), cntxtVar);
final InferJoin join = new InferJoin(fsp, rdfType);
join.getProperties().put(InferConstants.INFERRED, InferConstants.TRUE);
node.replaceWith(join);
}
}
}
Example 13
| Source File: HasValueVisitor.java From rya with Apache License 2.0 | 4 votes |
|
/**
* Checks whether facts matching the StatementPattern could be derived using
* has-value inference, and if so, replaces the StatementPattern node with a
* union of itself and any such possible derivations.
*/
@Override
protected void meetSP(StatementPattern node) throws Exception {
final Var subjVar = node.getSubjectVar();
final Var predVar = node.getPredicateVar();
final Var objVar = node.getObjectVar();
// We can reason over two types of statement patterns:
// { ?var rdf:type :Restriction } and { ?var :property ?value }
// Both require defined predicate
if (predVar != null && predVar.getValue() != null) {
final IRI predIRI = (IRI) predVar.getValue();
if (RDF.TYPE.equals(predIRI) && objVar != null && objVar.getValue() != null
&& objVar.getValue() instanceof Resource) {
// If the predicate is rdf:type and the type is specified, check whether it can be
// inferred using any hasValue restriction(s)
final Resource objType = (Resource) objVar.getValue();
final Map<IRI, Set<Value>> sufficientValues = inferenceEngine.getHasValueByType(objType);
if (sufficientValues.size() > 0) {
final Var valueVar = new Var("v-" + UUID.randomUUID());
TupleExpr currentNode = node.clone();
for (IRI property : sufficientValues.keySet()) {
final Var propVar = new Var(property.toString(), property);
final TupleExpr valueSP = new DoNotExpandSP(subjVar, propVar, valueVar);
final FixedStatementPattern relevantValues = new FixedStatementPattern(objVar, propVar, valueVar);
for (Value value : sufficientValues.get(property)) {
relevantValues.statements.add(new NullableStatementImpl(objType, property, value));
}
currentNode = new InferUnion(currentNode, new InferJoin(relevantValues, valueSP));
}
node.replaceWith(currentNode);
}
}
else {
// If the predicate has some hasValue restriction associated with it, then finding
// that the object belongs to the appropriate type implies a value.
final Map<Resource, Set<Value>> impliedValues = inferenceEngine.getHasValueByProperty(predIRI);
if (impliedValues.size() > 0) {
final Var rdfTypeVar = new Var(RDF.TYPE.stringValue(), RDF.TYPE);
final Var typeVar = new Var("t-" + UUID.randomUUID());
final Var hasValueVar = new Var(OWL.HASVALUE.stringValue(), OWL.HASVALUE);
final TupleExpr typeSP = new DoNotExpandSP(subjVar, rdfTypeVar, typeVar);
final FixedStatementPattern typeToValue = new FixedStatementPattern(typeVar, hasValueVar, objVar);
final TupleExpr directValueSP = node.clone();
for (Resource type : impliedValues.keySet()) {
// { ?var rdf:type :type } implies { ?var :property :val } for certain (:type, :val) pairs
for (Value impliedValue : impliedValues.get(type)) {
typeToValue.statements.add(new NullableStatementImpl(type, OWL.HASVALUE, impliedValue));
}
}
node.replaceWith(new InferUnion(new InferJoin(typeToValue, typeSP), directValueSP));
}
}
}
}
Example 14
| Source File: SubClassOfVisitor.java From rya with Apache License 2.0 | 4 votes |
|
@Override
protected void meetSP(final StatementPattern node) throws Exception {
final StatementPattern sp = node.clone();
final Var predVar = sp.getPredicateVar();
final Var objVar = sp.getObjectVar();
final Var conVar = sp.getContextVar();
if (predVar != null && objVar != null && objVar.getValue() != null && RDF.TYPE.equals(predVar.getValue())
&& !EXPANDED.equals(conVar)) {
/**
* ?type sesame:directSubClassOf ub:Student . ?student rdf:type ?type +
*/
// String s = UUID.randomUUID().toString();
// Var typeVar = new Var(s);
// StatementPattern subClassOf = new StatementPattern(typeVar, new Var("c-" + s, SESAME.DIRECTSUBCLASSOF), objVar, SUBCLASS_EXPANDED);
// StatementPattern rdfType = new StatementPattern(sp.getSubjectVar(), sp.getPredicateVar(), typeVar, SUBCLASS_EXPANDED);
// InferJoin join = new InferJoin(subClassOf, rdfType);
// join.getProperties().put(InferConstants.INFERRED, InferConstants.TRUE);
// node.replaceWith(join);
final IRI subclassof_iri = (IRI) objVar.getValue();
final Collection<IRI> parents = InferenceEngine.findParents(inferenceEngine.getSubClassOfGraph(), subclassof_iri);
if (parents != null && parents.size() > 0) {
final String s = UUID.randomUUID().toString();
final Var typeVar = new Var(s);
final FixedStatementPattern fsp = new FixedStatementPattern(typeVar, new Var("c-" + s, RDFS.SUBCLASSOF), objVar, conVar);
parents.add(subclassof_iri);
for (final IRI iri : parents) {
fsp.statements.add(new NullableStatementImpl(iri, RDFS.SUBCLASSOF, subclassof_iri));
}
final StatementPattern rdfType = new DoNotExpandSP(sp.getSubjectVar(), sp.getPredicateVar(), typeVar, conVar);
final InferJoin join = new InferJoin(fsp, rdfType);
join.getProperties().put(InferConstants.INFERRED, InferConstants.TRUE);
node.replaceWith(join);
}
// if (parents != null && parents.size() > 0) {
// StatementPatterns statementPatterns = new StatementPatterns();
// statementPatterns.patterns.add(node);
// Var subjVar = node.getSubjectVar();
// for (IRI iri : parents) {
// statementPatterns.patterns.add(new StatementPattern(subjVar, predVar, new Var(objVar.getName(), iri)));
// }
// node.replaceWith(statementPatterns);
// }
// if (parents != null && parents.size() > 0) {
// VarCollection vc = new VarCollection();
// vc.setName(objVar.getName());
// vc.values.add(objVar);
// for (IRI iri : parents) {
// vc.values.add(new Var(objVar.getName(), iri));
// }
// Var subjVar = node.getSubjectVar();
// node.replaceWith(new StatementPattern(subjVar, predVar, vc, node.getContextVar()));
// }
}
}
Example 15
| Source File: SparqlToPipelineTransformVisitor.java From rya with Apache License 2.0 | 4 votes |
|
@Override
public void meet(StatementPattern sp) {
sp.replaceWith(new AggregationPipelineQueryNode(inputCollection, sp));
}
