/*
* Copyright Aduna (http://www.aduna-software.com/) (c) 2007.
*
* Licensed under the Aduna BSD-style license.
*/
package org.openrdf.query.dawg;
import org.openrdf.model.Model;
import org.openrdf.model.Statement;
import org.openrdf.model.impl.LinkedHashModel;
import org.openrdf.query.TupleQueryResultHandlerException;
import org.openrdf.result.TupleResult;
import org.openrdf.result.util.TupleQueryResultBuilder;
import org.openrdf.rio.RDFHandlerException;
import org.openrdf.rio.helpers.StatementCollector;
import org.openrdf.store.StoreException;
/**
* @author Arjohn Kampman
*/
public class DAWGTestResultSetUtil {
public static TupleResult toTupleQueryResult(Iterable<? extends Statement> dawgGraph)
throws DAWGTestResultSetParseException
{
TupleQueryResultBuilder tqrBuilder = new TupleQueryResultBuilder();
DAWGTestResultSetParser parser = new DAWGTestResultSetParser(tqrBuilder);
try {
parser.startRDF();
for (Statement st : dawgGraph) {
parser.handleStatement(st);
}
parser.endRDF();
return tqrBuilder.getQueryResult();
}
catch (RDFHandlerException e) {
throw new DAWGTestResultSetParseException(e.getMessage(), e);
}
}
public static Model toGraph(TupleResult tqr)
throws StoreException
{
Model model = new LinkedHashModel();
DAWGTestResultSetWriter writer = new DAWGTestResultSetWriter(new StatementCollector(model));
try {
writer.startQueryResult(tqr.getBindingNames());
while (tqr.hasNext()) {
writer.handleSolution(tqr.next());
}
writer.endQueryResult();
}
catch (TupleQueryResultHandlerException e) {
// No exceptions expected from DAWGTestResultSetWriter or
// StatementCollector, foud a bug?
throw new RuntimeException(e);
}
return model;
}
public static boolean toBooleanQueryResult(Iterable<? extends Statement> dawgGraph)
throws DAWGTestResultSetParseException
{
DAWGTestBooleanParser parser = new DAWGTestBooleanParser();
try {
parser.startRDF();
for (Statement st : dawgGraph) {
parser.handleStatement(st);
}
parser.endRDF();
return parser.getValue();
}
catch (RDFHandlerException e) {
throw new DAWGTestResultSetParseException(e.getMessage(), e);
}
}
}