/**
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 26, 2007
*/
package com.bigdata.rdf.rules;
import java.util.Properties;
import org.openrdf.model.Literal;
import org.openrdf.model.URI;
import org.openrdf.model.impl.LiteralImpl;
import org.openrdf.model.impl.URIImpl;
import org.openrdf.model.vocabulary.RDF;
import org.openrdf.model.vocabulary.RDFS;
import com.bigdata.rdf.axioms.NoAxioms;
import com.bigdata.rdf.rules.InferenceEngine.Options;
import com.bigdata.rdf.spo.ISPO;
import com.bigdata.rdf.store.AbstractTripleStore;
import com.bigdata.rdf.vocab.Vocabulary;
import com.bigdata.relation.accesspath.IElementFilter;
import com.bigdata.relation.rule.Rule;
/**
* Test suite for {@link RuleRdfs04a} and {@link RuleRdfs04b}
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestRuleRdfs04 extends AbstractRuleTestCase {
/**
*
*/
public TestRuleRdfs04() {
super();
}
/**
* @param name
*/
public TestRuleRdfs04(String name) {
super(name);
}
/**
* Extended to explicitly turn on
* {@link Options#FORWARD_CHAIN_RDF_TYPE_RDFS_RESOURCE} for testing
* {@link RuleRdfs04}.
*/
public Properties getProperties() {
Properties properties = new Properties(super.getProperties());
properties.setProperty(Options.FORWARD_CHAIN_RDF_TYPE_RDFS_RESOURCE, "true");
return properties;
}
/**
* Test of the basic semantics.
* @throws Exception
*/
public void test_rdfs4a() throws Exception {
final Properties properties = super.getProperties();
// override the default axiom model.
properties.setProperty(com.bigdata.rdf.store.AbstractTripleStore.Options.AXIOMS_CLASS, NoAxioms.class.getName());
final AbstractTripleStore store = getStore(properties);
try {
URI U = new URIImpl("http://www.foo.org/U");
URI A = new URIImpl("http://www.foo.org/A");
URI X = new URIImpl("http://www.foo.org/X");
URI rdfType = RDF.TYPE;
URI rdfsResource = RDFS.RESOURCE;
store.addStatement(U, A, X);
assertTrue(store.hasStatement(U, A, X));
assertEquals(1,store.getStatementCount());
final Vocabulary vocab = store.getVocabulary();
final Rule r = new RuleRdfs04a(store.getSPORelation()
.getNamespace(), vocab);
applyRule(store, r, -1/*solutionCount*/,1/* mutationCount*/);
/*
* validate the state of the primary store.
*
* Note: There is no entailment for (A rdf:type rdfsResource) since
* it was not used in either a subject or object position.
*/
assertTrue(store.hasStatement(U, A, X));
assertTrue(store.hasStatement(U, rdfType, rdfsResource));
assertFalse(store.hasStatement(X, rdfType, rdfsResource));
assertEquals(2,store.getStatementCount());
} finally {
store.__tearDownUnitTest();
}
}
/**
* Test of the basic semantics.
* @throws Exception
*/
public void test_rdfs4b() throws Exception {
final Properties properties = super.getProperties();
// override the default axiom model.
properties.setProperty(com.bigdata.rdf.store.AbstractTripleStore.Options.AXIOMS_CLASS, NoAxioms.class.getName());
final AbstractTripleStore store = getStore(properties);
try {
URI U = new URIImpl("http://www.foo.org/U");
URI A = new URIImpl("http://www.foo.org/A");
URI V = new URIImpl("http://www.foo.org/V");
URI rdfType = RDF.TYPE;
URI rdfsResource = RDFS.RESOURCE;
store.addStatement(U, A, V);
assertTrue(store.hasStatement(U, A, V));
assertEquals(1,store.getStatementCount());
final Rule r = new RuleRdfs04b(store.getSPORelation()
.getNamespace(), store.getVocabulary());
applyRule(store, r, -1/*solutionCount*/,1/* mutationCount*/);
/*
* validate the state of the primary store.
*
* Note: There is no entailment for (A rdf:type rdfsResource) since
* it was not used in either a subject or object position.
*/
assertTrue(store.hasStatement(U, A, V));
assertFalse(store.hasStatement(U, rdfType, rdfsResource));
assertTrue(store.hasStatement(V, rdfType, rdfsResource));
assertEquals(2,store.getStatementCount());
} finally {
store.__tearDownUnitTest();
}
}
/**
* Literals may not appear in the subject position, but an rdfs4b entailment
* can put them there unless you explicitly filter it out.
* <P>
* Note: {@link RuleRdfs03} is the other way that literals can be entailed
* into the subject position.
*
* @throws Exception
*/
public void test_rdfs4b_filterLiterals() throws Exception {
final Properties properties = super.getProperties();
// override the default axiom model.
properties.setProperty(com.bigdata.rdf.store.AbstractTripleStore.Options.AXIOMS_CLASS, NoAxioms.class.getName());
final AbstractTripleStore store = getStore(properties);
try {
URI A = new URIImpl("http://www.foo.org/A");
Literal C = new LiteralImpl("C");
URI rdfType = RDF.TYPE;
URI rdfsResource = RDFS.RESOURCE;
store.addStatement(A, rdfType, C);
assertTrue(store.hasStatement(A, rdfType, C));
assertEquals(1,store.getStatementCount());
/*
* Note: The rule computes the entailment but it gets whacked by the
* DoNotAddFilter on the InferenceEngine, so it is counted here but
* does not show in the database.
*/
final Vocabulary vocab = store.getVocabulary();
final Rule r = new RuleRdfs04b(store.getSPORelation()
.getNamespace(), vocab);
final IElementFilter<ISPO> filter = new DoNotAddFilter(vocab, store
.getAxioms(), true/* forwardChainRdfTypeRdfsResource */);
applyRule(store, r, filter/*, false /*justified*/,
0/* solutionCount */, 0/* mutationCount*/);
/*
* validate the state of the primary store - there is no entailment
* for (A rdf:type rdfs:Resource) since that would allow a literal
* into the subject position.
*/
assertTrue(store.hasStatement(A, rdfType, C));
assertFalse(store.hasStatement(A, rdfType, rdfsResource));
assertEquals(1,store.getStatementCount());
} finally {
store.__tearDownUnitTest();
}
}
}