package net.stargraph.core; /*- * ==========================License-Start============================= * stargraph-core * -------------------------------------------------------------------- * Copyright (C) 2017 Lambda^3 * -------------------------------------------------------------------- * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * ==========================License-End=============================== */ import net.stargraph.data.Indexable; import net.stargraph.model.*; import org.apache.jena.rdf.model.Literal; import org.apache.jena.rdf.model.Statement; import static net.stargraph.ModelUtils.createInstance; import static net.stargraph.ModelUtils.createProperty; final class FactIterator extends TripleIterator<Indexable> { FactIterator(Stargraph core, KBId kbId) { super(core, kbId); } @Override protected Indexable buildNext(Statement statement) { InstanceEntity instanceEntity = createInstance(applyNS(statement.getSubject().getURI())); PropertyEntity propertyEntity = createProperty(applyNS(statement.getPredicate().getURI())); LabeledEntity labeledEntity; if (!statement.getObject().isLiteral()) { //Is created as an instance but can be changed to a class down on the workflow in EntityClassifierProcessor. labeledEntity = createInstance(applyNS(statement.getObject().asResource().getURI())); } else { Literal literal = statement.getObject().asLiteral(); String dataType = literal.getDatatypeURI(); String langTag = literal.getLanguage(); String value = literal.getLexicalForm(); labeledEntity = new ValueEntity(value, dataType, langTag); } return new Indexable(new Fact(kbId, instanceEntity, propertyEntity, labeledEntity), kbId); } }