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TransactionalStatementExecutor.java
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TransactionalStatementExecutor.java
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/**
* Copyright (C) 2020 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.ontodriver.owlapi.query;
import cz.cvut.kbss.ontodriver.owlapi.connector.OntologySnapshot;
import cz.cvut.kbss.ontodriver.owlapi.exception.OwlapiDriverException;
import cz.cvut.kbss.ontodriver.owlapi.exception.ReasonerNotAvailableException;
import cz.cvut.kbss.ontodriver.ResultSet;
import cz.cvut.kbss.ontodriver.Statement;
import cz.cvut.kbss.owl2query.engine.OWL2QueryEngine;
import cz.cvut.kbss.owl2query.model.QueryResult;
import cz.cvut.kbss.owl2query.model.owlapi.OWLAPIv3OWL2Ontology;
import org.semanticweb.owlapi.model.OWLObject;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyManager;
import org.semanticweb.owlapi.reasoner.OWLReasoner;
public class TransactionalStatementExecutor implements StatementExecutor {
private final OWLOntology ontology;
private final OWLOntologyManager ontologyManager;
private final OWLReasoner reasoner;
public TransactionalStatementExecutor(OntologySnapshot snapshot) {
this.ontology = snapshot.getOntology();
this.ontologyManager = snapshot.getOntologyManager();
this.reasoner = snapshot.getReasoner();
}
@Override
public ResultSet executeQuery(String query, Statement statement) throws OwlapiDriverException {
if (reasoner == null) {
throw new ReasonerNotAvailableException("Cannot execute query without a reasoner.");
}
final OWLAPIv3OWL2Ontology ont = new OWLAPIv3OWL2Ontology(ontologyManager, ontology, reasoner);
final QueryResult<OWLObject> res = OWL2QueryEngine.exec(query, ont);
if (res == null) {
throw new OwlapiDriverException("Unable to evaluate statement " + query);
}
return AbstractResultSet.createResultSet(res, statement, query);
}
@Override
public void executeUpdate(String update) throws OwlapiDriverException {
if (reasoner == null) {
throw new ReasonerNotAvailableException("Cannot execute query without a reasoner.");
}
final OWLAPIv3OWL2Ontology ont = new OWLAPIv3OWL2Ontology(ontologyManager, ontology, reasoner);
final QueryResult<OWLObject> res = OWL2QueryEngine.exec(update, ont);
if (res == null) {
throw new OwlapiDriverException("Unable to evaluate statement " + update);
}
}
}