/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sindice.siren.search.node;
import static org.sindice.siren.search.AbstractTestSirenScorer.NodeTermQueryBuilder.ntq;
import java.io.IOException;
import org.apache.lucene.analysis.core.WhitespaceAnalyzer;
import org.apache.lucene.index.AtomicReaderContext;
import org.apache.lucene.search.Explanation;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.Weight;
import org.junit.Test;
import org.sindice.siren.analysis.AnyURIAnalyzer;
import org.sindice.siren.analysis.TupleAnalyzer;
import org.sindice.siren.index.codecs.RandomSirenCodec.PostingsFormatType;
import org.sindice.siren.util.BasicSirenTestCase;
import org.sindice.siren.util.XSDDatatype;
public class TestNodeTermQuery extends BasicSirenTestCase {
@Override
protected void configure() throws IOException {
this.setAnalyzer(AnalyzerType.TUPLE);
final AnyURIAnalyzer uriAnalyzer = new AnyURIAnalyzer(TEST_VERSION_CURRENT);
((TupleAnalyzer) analyzer).registerDatatype(XSDDatatype.XSD_ANY_URI.toCharArray(), uriAnalyzer);
this.setPostingsFormat(PostingsFormatType.RANDOM);
}
/**
* Ensures simple term queries match all the documents
*/
@Test
public void testSimpleMatch() throws Exception {
this.addDocument("\"Renaud Delbru\" . ");
this.addDocument("\"Renaud\" . ");
Query query = ntq("renaud").getLuceneProxyQuery();
TopDocs hits = searcher.search(query, 100);
assertEquals(2, hits.totalHits);
query = ntq("delbru").getLuceneProxyQuery();
hits = searcher.search(query, 100);
assertEquals(1, hits.totalHits);
}
@Test
public void testSimpleMatchWithConstraint() throws Exception {
this.addDocument("\"Renaud Delbru\" . ");
this.addDocument("\"Delbru\" \"Renaud\" . ");
this.addDocument("\"Delbru\" . \"Renaud\" . ");
Query query = ntq("renaud").level(1).getLuceneProxyQuery();
TopDocs hits = searcher.search(query, 100);
assertEquals(0, hits.totalHits);
query = ntq("renaud").bound(0,0).getLuceneProxyQuery();
hits = searcher.search(query, 100);
assertEquals(2, hits.totalHits);
}
/**
* Ensures simple term queries match all the documents
* <br>
* Test with no norms [SRN-44]
*/
@Test
public void testSimpleMatchWithNoNorms() throws Exception {
this.addDocumentNoNorms("\"Renaud Delbru\" . ");
this.addDocumentNoNorms("\"Renaud\" . ");
Query query = ntq("renaud").getLuceneProxyQuery();
TopDocs hits = searcher.search(query, 100);
assertEquals(2, hits.totalHits);
query = ntq("delbru").getLuceneProxyQuery();
hits = searcher.search(query, 100);
assertEquals(1, hits.totalHits);
}
/**
* Ensures simple term queries does not match
*/
@Test
public void testSimpleDontMatch() throws Exception {
this.addDocument("\"Renaud Delbru\" . ");
final Query query = ntq("nomatch").getLuceneProxyQuery();
final TopDocs hits = searcher.search(query, 100);
assertEquals(0, hits.totalHits);
}
@Test
public void testExplain() throws IOException {
this.addDocumentNoNorms("<http://renaud.delbru.fr/rdf/foaf#me> <http://xmlns.com/foaf/0.1/name> \"Renaud Delbru\" . ");
final Query query = ntq("renaud").getLuceneProxyQuery();
final Weight w = searcher.createNormalizedWeight(query);
assertTrue(searcher.getTopReaderContext() instanceof AtomicReaderContext);
final AtomicReaderContext context = (AtomicReaderContext) searcher.getTopReaderContext();
// Explain entity 0
Explanation explanation = w.explain(context, 0);
assertNotNull("explanation is null and it shouldn't be", explanation);
// TODO: the similarity is random
// All this Explain does is return the term frequency
// final float termFreq = explanation.getDetails()[0].getDetails()[0].getValue();
// assertEquals("term frq is not 2", 2f, termFreq, 0f);
// Explain non existing entity
explanation = w.explain(context, 1);
assertNotNull("explanation is null and it shouldn't be", explanation);
//All this Explain does is return the term frequency
assertEquals("term frq is not 0", 0f, explanation.getValue(), 0f);
}
}