package org.apache.lucene.facet.complements;
import java.io.IOException;
import java.util.List;
import org.apache.lucene.facet.FacetTestBase;
import org.apache.lucene.facet.old.OldFacetsAccumulator;
import org.apache.lucene.facet.params.FacetIndexingParams;
import org.apache.lucene.facet.params.FacetSearchParams;
import org.apache.lucene.facet.search.CountFacetRequest;
import org.apache.lucene.facet.search.FacetResult;
import org.apache.lucene.facet.search.FacetResultNode;
import org.apache.lucene.facet.search.FacetsCollector;
import org.apache.lucene.facet.taxonomy.CategoryPath;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.MultiReader;
import org.apache.lucene.index.ParallelAtomicReader;
import org.apache.lucene.index.SlowCompositeReaderWrapper;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
public class TestFacetsAccumulatorWithComplement extends FacetTestBase {
private FacetIndexingParams fip;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
fip = getFacetIndexingParams(Integer.MAX_VALUE);
initIndex(fip);
}
@Override
@After
public void tearDown() throws Exception {
closeAll();
super.tearDown();
}
/**
* Test that complements does not cause a failure when using a parallel reader
*/
@Test
public void testComplementsWithParallerReader() throws Exception {
IndexReader origReader = indexReader;
ParallelAtomicReader pr = new ParallelAtomicReader(SlowCompositeReaderWrapper.wrap(origReader));
indexReader = pr;
try {
doTestComplements();
} finally {
indexReader = origReader;
}
}
/**
* Test that complements works with MultiReader
*/
@Test
public void testComplementsWithMultiReader() throws Exception {
final IndexReader origReader = indexReader;
indexReader = new MultiReader(origReader);
try {
doTestComplements();
} finally {
indexReader = origReader;
}
}
/**
* Test that score is indeed constant when using a constant score
*/
@Test
public void testComplements() throws Exception {
doTestComplements();
}
private void doTestComplements() throws Exception {
// verify by facet values
List<FacetResult> countResWithComplement = findFacets(true);
List<FacetResult> countResNoComplement = findFacets(false);
assertEquals("Wrong number of facet count results with complement!",1,countResWithComplement.size());
assertEquals("Wrong number of facet count results no complement!",1,countResNoComplement.size());
FacetResultNode parentResWithComp = countResWithComplement.get(0).getFacetResultNode();
FacetResultNode parentResNoComp = countResWithComplement.get(0).getFacetResultNode();
assertEquals("Wrong number of top count aggregated categories with complement!",3,parentResWithComp.subResults.size());
assertEquals("Wrong number of top count aggregated categories no complement!",3,parentResNoComp.subResults.size());
}
/** compute facets with certain facet requests and docs */
private List<FacetResult> findFacets(boolean withComplement) throws IOException {
FacetSearchParams fsp = new FacetSearchParams(fip, new CountFacetRequest(new CategoryPath("root","a"), 10));
OldFacetsAccumulator sfa = new OldFacetsAccumulator(fsp, indexReader, taxoReader);
sfa.setComplementThreshold(withComplement ? OldFacetsAccumulator.FORCE_COMPLEMENT : OldFacetsAccumulator.DISABLE_COMPLEMENT);
FacetsCollector fc = FacetsCollector.create(sfa);
searcher.search(new MatchAllDocsQuery(), fc);
List<FacetResult> res = fc.getFacetResults();
// Results are ready, printing them...
int i = 0;
if (VERBOSE) {
for (FacetResult facetResult : res) {
System.out.println("Res "+(i++)+": "+facetResult);
}
}
assertEquals(withComplement, sfa.isUsingComplements());
return res;
}
}