/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Mar 29, 2011
*/
package com.bigdata.rdf.sail;
import java.util.Collection;
import java.util.LinkedList;
import java.util.Properties;
import org.openrdf.model.Value;
import org.openrdf.model.impl.LiteralImpl;
import org.openrdf.model.impl.URIImpl;
import org.openrdf.query.BindingSet;
import org.openrdf.query.MalformedQueryException;
import org.openrdf.query.QueryEvaluationException;
import org.openrdf.query.QueryLanguage;
import org.openrdf.query.TupleQuery;
import org.openrdf.query.TupleQueryResult;
import org.openrdf.query.impl.MapBindingSet;
import org.openrdf.repository.RepositoryException;
import org.openrdf.sail.SailException;
import com.bigdata.rdf.axioms.NoAxioms;
import com.bigdata.rdf.model.BigdataValue;
import com.bigdata.rdf.vocab.NoVocabulary;
/**
* Test suite for the logic which rewrites a query, replacing {@link Value}
* constants with {@link BigdataValue} constants which have been resolved
* against the database.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
*/
public class TestBigdataValueReplacer extends ProxyBigdataSailTestCase {
/**
*
*/
public TestBigdataValueReplacer() {
}
/**
* @param name
*/
public TestBigdataValueReplacer(String name) {
super(name);
}
@Override
public Properties getProperties() {
// Logger.getLogger(BigdataValueReplacer.class).setLevel(Level.ALL);
final Properties props = super.getProperties();
props.setProperty(BigdataSail.Options.TRUTH_MAINTENANCE, "false");
props.setProperty(BigdataSail.Options.AXIOMS_CLASS, NoAxioms.class.getName());
props.setProperty(BigdataSail.Options.VOCABULARY_CLASS, NoVocabulary.class.getName());
props.setProperty(BigdataSail.Options.JUSTIFY, "false");
props.setProperty(BigdataSail.Options.TEXT_INDEX, "false");
return props;
}
/**
* Unit test for bindings passed into a query which are not used by the
* query.
*
* @throws RepositoryException
* @throws SailException
* @throws MalformedQueryException
* @throws QueryEvaluationException
*
* @see https://sourceforge.net/apps/trac/bigdata/ticket/271
*/
public void test_dropUnusedBindings() throws RepositoryException,
SailException, MalformedQueryException, QueryEvaluationException {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final BigdataSailRepositoryConnection cxn = (BigdataSailRepositoryConnection) repo
.getConnection();
try {
cxn.setAutoCommit(false);
/*
* Add a statement so the query does not get short circuited
* because some of the terms in the query are undefined in the
* database.
*/
cxn.add(new URIImpl("s:1"), new URIImpl("p:1"), new URIImpl(
"s:2"));
final String query = "select ?a ?b WHERE {?a <p:1> ?b}";
final TupleQuery q = cxn.prepareTupleQuery(
QueryLanguage.SPARQL, query);
/*
* Setup some bindings.
*/
// bind to a term in the database.
q.setBinding("a", new URIImpl("s:1"));
// bind to a term in the database.
q.setBinding("b", new URIImpl("s:2"));
// bind to a term NOT found in the database.
q.setBinding("notused", new LiteralImpl("lit"));
/*
* Evaluate the query and verify that the correct solution
* is produced.
*/
final Collection<BindingSet> expected = new LinkedList<BindingSet>();
{
final MapBindingSet bset = new MapBindingSet();
bset.addBinding("a", new URIImpl("s:1"));
bset.addBinding("b", new URIImpl("s:2"));
expected.add(bset);
}
final TupleQueryResult result = q.evaluate();
try {
compare(result, expected);
} finally {
result.close();
}
} finally {
cxn.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
}