001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.commons.rdf.jsonldjava;
019
020import java.util.List;
021import java.util.Optional;
022import java.util.function.Predicate;
023import java.util.stream.Collectors;
024import java.util.stream.Stream;
025
026import org.apache.commons.rdf.api.BlankNodeOrIRI;
027import org.apache.commons.rdf.api.Dataset;
028import org.apache.commons.rdf.api.Graph;
029import org.apache.commons.rdf.api.IRI;
030import org.apache.commons.rdf.api.Quad;
031import org.apache.commons.rdf.api.RDFTerm;
032
033import com.github.jsonldjava.core.RDFDataset;
034
035public interface JsonLdDataset extends JsonLdGraphLike<org.apache.commons.rdf.api.Quad>, Dataset {
036}
037
038class JsonLdDatasetImpl extends AbstractJsonLdGraphLike<org.apache.commons.rdf.api.Quad> implements JsonLdDataset {
039
040    JsonLdDatasetImpl(final RDFDataset rdfDataSet) {
041        super(rdfDataSet);
042    }
043
044    JsonLdDatasetImpl(final RDFDataset rdfDataset, final String bnodePrefix) {
045        super(rdfDataset, bnodePrefix);
046    }
047
048    JsonLdDatasetImpl(final String bnodePrefix) {
049        super(bnodePrefix);
050    }
051
052    @Override
053    public void add(final BlankNodeOrIRI graphName, final BlankNodeOrIRI subject, final IRI predicate, final RDFTerm object) {
054        super.add(graphName, subject, predicate, object);
055    }
056
057    @Override
058    public boolean contains(final Optional<BlankNodeOrIRI> graphName, final BlankNodeOrIRI subject, final IRI predicate, final RDFTerm object) {
059        return super.contains(graphName, subject, predicate, object);
060    }
061
062    @Override
063    public Graph getGraph() {
064        return new JsonLdGraphImpl(rdfDataSet, Optional.empty(), bnodePrefix);
065    }
066
067    @Override
068    public Optional<Graph> getGraph(final BlankNodeOrIRI graphName) {
069        if (graphName == null) {
070            return Optional.of(getGraph());
071        }
072
073        return Optional.of(new JsonLdGraphImpl(rdfDataSet, Optional.of(graphName), bnodePrefix));
074    }
075
076    @Override
077    public Stream<BlankNodeOrIRI> getGraphNames() {
078        return rdfDataSet.graphNames().parallelStream().filter(Predicate.isEqual("@default").negate())
079                .map(s -> s.startsWith("_:") ? new RDFDataset.BlankNode(s) : new RDFDataset.IRI(s))
080                .map(n -> (BlankNodeOrIRI) factory.asRDFTerm(n));
081    }
082
083    @Override
084    public void remove(final Optional<BlankNodeOrIRI> graphName, final BlankNodeOrIRI subject, final IRI predicate, final RDFTerm object) {
085        super.remove(graphName, subject, predicate, object);
086    }
087
088    @Override
089    public void remove(final Quad q) {
090        remove(q.getGraphName(), q.getSubject(), q.getPredicate(), q.getObject());
091    }
092
093    @Override
094    public Stream<? extends Quad> stream(final Optional<BlankNodeOrIRI> graphName, final BlankNodeOrIRI subject, final IRI predicate,
095            final RDFTerm object) {
096        return filteredGraphs(graphName).flatMap(List::stream).filter(quadFilter(subject, predicate, object))
097                .map(factory::asQuad);
098    }
099
100    @Override
101    public long size() {
102        return rdfDataSet.graphNames().stream().map(rdfDataSet::getQuads)
103                .collect(Collectors.summingLong(List::size));
104    }
105
106    @Override
107    Quad asTripleOrQuad(final com.github.jsonldjava.core.RDFDataset.Quad jsonldQuad) {
108        return factory.asQuad(jsonldQuad);
109    }
110
111}