/**
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 Oct 1, 2010
*/
package com.bigdata.rdf.rules;
import java.util.Properties;
import junit.framework.TestCase2;
import org.openrdf.model.vocabulary.RDF;
import com.bigdata.bop.BOp;
import com.bigdata.bop.NV;
import com.bigdata.bop.Var;
import com.bigdata.bop.IPredicate.Annotations;
import com.bigdata.bop.ap.Predicate;
import com.bigdata.bop.rdf.filter.StripContextFilter;
import com.bigdata.btree.IRangeQuery;
import com.bigdata.journal.BufferMode;
import com.bigdata.journal.ITx;
import com.bigdata.journal.Journal;
import com.bigdata.rdf.model.BigdataStatement;
import com.bigdata.rdf.model.BigdataURI;
import com.bigdata.rdf.model.BigdataValue;
import com.bigdata.rdf.model.BigdataValueFactory;
import com.bigdata.rdf.model.StatementEnum;
import com.bigdata.rdf.spo.ContextAdvancer;
import com.bigdata.rdf.spo.ISPO;
import com.bigdata.rdf.spo.SPOKeyOrder;
import com.bigdata.rdf.spo.SPOPredicate;
import com.bigdata.rdf.store.AbstractTestCase;
import com.bigdata.rdf.store.AbstractTripleStore;
import com.bigdata.rdf.store.LocalTripleStore;
import com.bigdata.relation.accesspath.IAccessPath;
/**
* Test suite for the {@link ContextAdvancer}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestContextAdvancer extends TestCase2 {
/**
*
*/
public TestContextAdvancer() {
}
public TestContextAdvancer(String name) {
super(name);
}
/**
* Unit test verifies the {@link ContextAdvancer} against the
* {@link SPOKeyOrder#SPOC} index.
*/
public void test_contextAdvancer() {
final Properties properties = new Properties();
properties.setProperty(AbstractTripleStore.Options.QUADS_MODE, "true");
properties.setProperty(Journal.Options.BUFFER_MODE,
BufferMode.Transient.toString());
final Journal store = new Journal(properties);
try {
final LocalTripleStore db = new LocalTripleStore(store, "test",
ITx.UNISOLATED, properties);
db.create();
// final StatementBuffer<BigdataStatement> sb = new StatementBuffer<BigdataStatement>(
// db, 100/* capacity */);
final BigdataValueFactory f = db.getValueFactory();
final BigdataURI u1 = f.createURI("http://www.bigdata.com/u1");
final BigdataURI u2 = f.createURI("http://www.bigdata.com/u2");
final BigdataURI v1 = f.createURI("http://www.bigdata.com/v1");
final BigdataURI v2 = f.createURI("http://www.bigdata.com/v2");
final BigdataURI c1 = f.createURI("http://www.bigdata.com/c1");
final BigdataURI c2 = f.createURI("http://www.bigdata.com/c2");
final BigdataURI rdfType = f.createURI(RDF.TYPE.stringValue());
final BigdataValue[] terms = new BigdataValue[] {
u1,u2,//
v1,v2,//
c1,c2,//
rdfType//
};
db.getLexiconRelation()
.addTerms(terms, terms.length, false/* readOnly */);
final StatementEnum explicit = StatementEnum.Explicit;
final BigdataStatement[] stmts = new BigdataStatement[]{
f.createStatement(u1, rdfType, v1, c1, explicit),
f.createStatement(u1, rdfType, v1, c2, explicit),
f.createStatement(u1, rdfType, v2, c1, explicit),
f.createStatement(u1, rdfType, v2, c2, explicit),
f.createStatement(u2, rdfType, v1, c1, explicit),
f.createStatement(u2, rdfType, v1, c2, explicit),
f.createStatement(u2, rdfType, v2, c1, explicit),
f.createStatement(u2, rdfType, v2, c2, explicit),
};
db.addStatements(stmts, stmts.length);
db.commit();
if (log.isInfoEnabled())
log.info(db.dumpStore());
// The expected distinct statements w/o their context info.
final BigdataStatement[] expectedDistinct = new BigdataStatement[]{
f.createStatement(u1, rdfType, v1),
f.createStatement(u1, rdfType, v2),
f.createStatement(u2, rdfType, v1),
f.createStatement(u2, rdfType, v2),
};
// predicate using the SPOC index.
Predicate<ISPO> pred = new SPOPredicate(new BOp[] { Var.var("s"),
Var.var("p"), Var.var("o"), Var.var("c") }, NV
.asMap(new NV[] {//
// new NV(Predicate.Annotations.KEY_ORDER,
// SPOKeyOrder.SPOC), //
new NV(Annotations.TIMESTAMP,
ITx.UNISOLATED),//
}));
// final BOpContextBase context = new BOpContextBase(null/* fed */,
// store/* indexManager */);
// First verify assumptions without the advancer.
{
final IAccessPath<ISPO> ap = db.getSPORelation().getAccessPath(
SPOKeyOrder.SPOC, pred);
// final IAccessPath<ISPO> ap = db.getSPORelation().getAccessPath(
// SPOKeyOrder.SPOC, pred);
assertEquals(SPOKeyOrder.SPOC, ap.getKeyOrder());
assertEquals(stmts.length, ap.rangeCount(true/* exact */));
}
// Now verify assumptions with the advancer.
{
pred = (Predicate) pred.setProperty(
Predicate.Annotations.FLAGS, IRangeQuery.DEFAULT
| IRangeQuery.CURSOR);
pred = pred.addIndexLocalFilter(new ContextAdvancer());
pred = pred.addAccessPathFilter(StripContextFilter
.newInstance());
final IAccessPath<ISPO> ap = db.getSPORelation().getAccessPath(
SPOKeyOrder.SPOC, pred);
// final IAccessPath<ISPO> ap = context.getAccessPath(db
// .getSPORelation(), pred);
assertEquals(SPOKeyOrder.SPOC, ap.getKeyOrder());
assertEquals(4, ap.rangeCount(true/* exact */));
AbstractTestCase.assertSameSPOsAnyOrder(db, expectedDistinct,
ap.iterator());
}
} finally {
store.destroy();
}
}
}