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* 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.
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package org.apache.lucene.search;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.document.StringField;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.IOUtils;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
public class TestDocValuesTermsQuery extends LuceneTestCase {
public void testEquals() {
assertEquals(new DocValuesTermsQuery("foo", "bar"), new DocValuesTermsQuery("foo", "bar"));
assertEquals(new DocValuesTermsQuery("foo", "bar"), new DocValuesTermsQuery("foo", "bar", "bar"));
assertEquals(new DocValuesTermsQuery("foo", "bar", "baz"), new DocValuesTermsQuery("foo", "baz", "bar"));
assertFalse(new DocValuesTermsQuery("foo", "bar").equals(new DocValuesTermsQuery("foo2", "bar")));
assertFalse(new DocValuesTermsQuery("foo", "bar").equals(new DocValuesTermsQuery("foo", "baz")));
}
public void testDuelTermsQuery() throws IOException {
final int iters = atLeast(2);
for (int iter = 0; iter < iters; ++iter) {
final List<Term> allTerms = new ArrayList<>();
final int numTerms = TestUtil.nextInt(random(), 1, 1 << TestUtil.nextInt(random(), 1, 10));
for (int i = 0; i < numTerms; ++i) {
final String value = TestUtil.randomAnalysisString(random(), 10, true);
allTerms.add(new Term("f", value));
}
Directory dir = newDirectory();
RandomIndexWriter iw = new RandomIndexWriter(random(), dir);
final int numDocs = atLeast(100);
for (int i = 0; i < numDocs; ++i) {
Document doc = new Document();
final Term term = allTerms.get(random().nextInt(allTerms.size()));
doc.add(new StringField(term.field(), term.text(), Store.NO));
doc.add(new SortedDocValuesField(term.field(), new BytesRef(term.text())));
iw.addDocument(doc);
}
if (numTerms > 1 && random().nextBoolean()) {
iw.deleteDocuments(new TermQuery(allTerms.get(0)));
}
iw.commit();
final IndexReader reader = iw.getReader();
final IndexSearcher searcher = newSearcher(reader);
iw.close();
if (reader.numDocs() == 0) {
// may occasionally happen if all documents got the same term
IOUtils.close(reader, dir);
continue;
}
for (int i = 0; i < 100; ++i) {
final float boost = random().nextFloat() * 10;
final int numQueryTerms = TestUtil.nextInt(random(), 1, 1 << TestUtil.nextInt(random(), 1, 8));
List<Term> queryTerms = new ArrayList<>();
for (int j = 0; j < numQueryTerms; ++j) {
queryTerms.add(allTerms.get(random().nextInt(allTerms.size())));
}
final BooleanQuery.Builder bq = new BooleanQuery.Builder();
for (Term term : queryTerms) {
bq.add(new TermQuery(term), Occur.SHOULD);
}
Query q1 = new BoostQuery(new ConstantScoreQuery(bq.build()), boost);
List<String> bytesTerms = new ArrayList<>();
for (Term term : queryTerms) {
bytesTerms.add(term.text());
}
final Query q2 = new BoostQuery(new DocValuesTermsQuery("f", bytesTerms.toArray(new String[0])), boost);
assertSameMatches(searcher, q1, q2, true);
}
reader.close();
dir.close();
}
}
public void testApproximation() throws IOException {
final int iters = atLeast(2);
for (int iter = 0; iter < iters; ++iter) {
final List<Term> allTerms = new ArrayList<>();
final int numTerms = TestUtil.nextInt(random(), 1, 1 << TestUtil.nextInt(random(), 1, 10));
for (int i = 0; i < numTerms; ++i) {
final String value = TestUtil.randomAnalysisString(random(), 10, true);
allTerms.add(new Term("f", value));
}
Directory dir = newDirectory();
RandomIndexWriter iw = new RandomIndexWriter(random(), dir);
final int numDocs = atLeast(100);
for (int i = 0; i < numDocs; ++i) {
Document doc = new Document();
final Term term = allTerms.get(random().nextInt(allTerms.size()));
doc.add(new StringField(term.field(), term.text(), Store.NO));
doc.add(new SortedDocValuesField(term.field(), new BytesRef(term.text())));
iw.addDocument(doc);
}
if (numTerms > 1 && random().nextBoolean()) {
iw.deleteDocuments(new TermQuery(allTerms.get(0)));
}
iw.commit();
final IndexReader reader = iw.getReader();
final IndexSearcher searcher = newSearcher(reader);
iw.close();
if (reader.numDocs() == 0) {
// may occasionally happen if all documents got the same term
IOUtils.close(reader, dir);
continue;
}
for (int i = 0; i < 100; ++i) {
final float boost = random().nextFloat() * 10;
final int numQueryTerms = TestUtil.nextInt(random(), 1, 1 << TestUtil.nextInt(random(), 1, 8));
List<Term> queryTerms = new ArrayList<>();
for (int j = 0; j < numQueryTerms; ++j) {
queryTerms.add(allTerms.get(random().nextInt(allTerms.size())));
}
final BooleanQuery.Builder bq = new BooleanQuery.Builder();
for (Term term : queryTerms) {
bq.add(new TermQuery(term), Occur.SHOULD);
}
Query q1 = new BoostQuery(new ConstantScoreQuery(bq.build()), boost);
List<String> bytesTerms = new ArrayList<>();
for (Term term : queryTerms) {
bytesTerms.add(term.text());
}
final Query q2 = new BoostQuery(new DocValuesTermsQuery("f", bytesTerms.toArray(new String[0])), boost);
BooleanQuery.Builder bq1 = new BooleanQuery.Builder();
bq1.add(q1, Occur.MUST);
bq1.add(new TermQuery(allTerms.get(0)), Occur.FILTER);
BooleanQuery.Builder bq2 = new BooleanQuery.Builder();
bq2.add(q2, Occur.MUST);
bq2.add(new TermQuery(allTerms.get(0)), Occur.FILTER);
assertSameMatches(searcher, bq1.build(), bq2.build(), true);
}
reader.close();
dir.close();
}
}
private void assertSameMatches(IndexSearcher searcher, Query q1, Query q2, boolean scores) throws IOException {
final int maxDoc = searcher.getIndexReader().maxDoc();
final TopDocs td1 = searcher.search(q1, maxDoc, scores ? Sort.RELEVANCE : Sort.INDEXORDER);
final TopDocs td2 = searcher.search(q2, maxDoc, scores ? Sort.RELEVANCE : Sort.INDEXORDER);
assertEquals(td1.totalHits, td2.totalHits);
for (int i = 0; i < td1.scoreDocs.length; ++i) {
assertEquals(td1.scoreDocs[i].doc, td2.scoreDocs[i].doc);
if (scores) {
assertEquals(td1.scoreDocs[i].score, td2.scoreDocs[i].score, 10e-7);
}
}
}
}