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LiveOntologyStatementExecutor.java
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LiveOntologyStatementExecutor.java
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/**
* Copyright (C) 2016 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.Connector;
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;
public class LiveOntologyStatementExecutor implements StatementExecutor {
private final Connector connector;
public LiveOntologyStatementExecutor(Connector connector) {
this.connector = connector;
}
@Override
public ResultSet executeQuery(final String query, final Statement statement) throws OwlapiDriverException {
final ResultSet resultSet = connector.executeRead(snapshot -> {
if (snapshot.getReasoner() == null) {
throw new ReasonerNotAvailableException("Cannot execute query without a reasoner.");
}
final OWLAPIv3OWL2Ontology ont = new OWLAPIv3OWL2Ontology(snapshot.getOntologyManager(),
snapshot.getOntology(), snapshot.getReasoner());
final QueryResult<OWLObject> res = OWL2QueryEngine.exec(query, ont);
return res != null ? AbstractResultSet.createResultSet(res, statement, query) : null;
});
if (resultSet == null) {
throw new OwlapiDriverException("Unable to execute query " + query);
}
return resultSet;
}
@Override
public void executeUpdate(final String update) throws OwlapiDriverException {
connector.executeWrite(snapshot -> {
if (snapshot.getReasoner() == null) {
throw new ReasonerNotAvailableException("Cannot execute query without a reasoner.");
}
final OWLAPIv3OWL2Ontology ont = new OWLAPIv3OWL2Ontology(snapshot.getOntologyManager(),
snapshot.getOntology(), snapshot.getReasoner());
OWL2QueryEngine.exec(update, ont);
});
}
}