package org.apache.lucene.facet.sampling;
import java.util.ArrayList;
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.FacetResultNode;
import org.apache.lucene.facet.search.FacetsCollector;
import org.apache.lucene.facet.taxonomy.CategoryPath;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.junit.After;
import org.junit.Before;
/*
* 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 SamplerTest extends FacetTestBase {
private FacetIndexingParams fip;
@Override
@Before
public void setUp() throws Exception {
super.setUp();
fip = getFacetIndexingParams(Integer.MAX_VALUE);
initIndex(fip);
}
@Override
protected int numDocsToIndex() {
return 100;
}
@Override
protected List<CategoryPath> getCategories(final int doc) {
return new ArrayList<CategoryPath>() {
{
add(new CategoryPath("root", "a", Integer.toString(doc % 10)));
}
};
}
@Override
protected String getContent(int doc) {
return "";
}
@Override
@After
public void tearDown() throws Exception {
closeAll();
super.tearDown();
}
public void testDefaultFixer() throws Exception {
RandomSampler randomSampler = new RandomSampler();
SampleFixer fixer = randomSampler.samplingParams.getSampleFixer();
assertEquals(null, fixer);
}
public void testCustomFixer() throws Exception {
SamplingParams sp = new SamplingParams();
sp.setSampleFixer(new TakmiSampleFixer(null, null, null));
assertEquals(TakmiSampleFixer.class, sp.getSampleFixer().getClass());
}
public void testNoFixing() throws Exception {
SamplingParams sp = new SamplingParams();
sp.setMaxSampleSize(10);
sp.setMinSampleSize(5);
sp.setSampleRatio(0.01d);
sp.setSamplingThreshold(50);
sp.setOversampleFactor(5d);
assertNull("Fixer should be null as the test is for no-fixing",
sp.getSampleFixer());
FacetSearchParams fsp = new FacetSearchParams(fip, new CountFacetRequest(
new CategoryPath("root", "a"), 1));
SamplingAccumulator accumulator = new SamplingAccumulator(
new RandomSampler(sp, random()), fsp, indexReader, taxoReader);
// Make sure no complements are in action
accumulator
.setComplementThreshold(OldFacetsAccumulator.DISABLE_COMPLEMENT);
FacetsCollector fc = FacetsCollector.create(accumulator);
searcher.search(new MatchAllDocsQuery(), fc);
FacetResultNode node = fc.getFacetResults().get(0).getFacetResultNode();
assertTrue(node.value < numDocsToIndex());
}
}