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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
package org.elasticsearch.index.search;
import org.apache.lucene.index.Term;
import org.apache.lucene.queries.BlendedTermQuery;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.BoostQuery;
import org.apache.lucene.search.DisjunctionMaxQuery;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.SynonymQuery;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.lucene.search.MultiPhrasePrefixQuery;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.index.engine.Engine;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.mapper.MockFieldMapper.FakeFieldType;
import org.elasticsearch.index.query.MultiMatchQueryBuilder;
import org.elasticsearch.index.query.QueryShardContext;
import org.elasticsearch.index.search.MultiMatchQuery.FieldAndFieldType;
import org.elasticsearch.test.ESSingleNodeTestCase;
import org.junit.Before;
import java.io.IOException;
import java.util.Arrays;
import static org.elasticsearch.index.query.QueryBuilders.multiMatchQuery;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
public class MultiMatchQueryTests extends ESSingleNodeTestCase {
private IndexService indexService;
@Before
public void setup() throws IOException {
Settings settings = Settings.builder()
.put("index.analysis.filter.syns.type","synonym")
.putArray("index.analysis.filter.syns.synonyms","quick,fast")
.put("index.analysis.analyzer.syns.tokenizer","standard")
.put("index.analysis.analyzer.syns.filter","syns").build();
IndexService indexService = createIndex("test", settings);
MapperService mapperService = indexService.mapperService();
String mapping = "{\n" +
" \"person\":{\n" +
" \"properties\":{\n" +
" \"name\":{\n" +
" \"properties\":{\n" +
" \"first\": {\n" +
" \"type\":\"text\",\n" +
" \"analyzer\":\"syns\"\n" +
" }," +
" \"last\": {\n" +
" \"type\":\"text\",\n" +
" \"analyzer\":\"syns\"\n" +
" }" +
" }" +
" }\n" +
" }\n" +
" }\n" +
"}";
mapperService.merge("person", new CompressedXContent(mapping), MapperService.MergeReason.MAPPING_UPDATE, false);
this.indexService = indexService;
}
public void testCrossFieldMultiMatchQuery() throws IOException {
QueryShardContext queryShardContext = indexService.newQueryShardContext(
randomInt(20), null, () -> { throw new UnsupportedOperationException(); });
queryShardContext.setAllowUnmappedFields(true);
Query parsedQuery = multiMatchQuery("banon").field("name.first", 2).field("name.last", 3).field("foobar").type(MultiMatchQueryBuilder.Type.CROSS_FIELDS).toQuery(queryShardContext);
try (Engine.Searcher searcher = indexService.getShard(0).acquireSearcher("test")) {
Query rewrittenQuery = searcher.searcher().rewrite(parsedQuery);
BooleanQuery.Builder expected = new BooleanQuery.Builder();
expected.add(new TermQuery(new Term("foobar", "banon")), BooleanClause.Occur.SHOULD);
Query tq1 = new BoostQuery(new TermQuery(new Term("name.first", "banon")), 2);
Query tq2 = new BoostQuery(new TermQuery(new Term("name.last", "banon")), 3);
expected.add(new DisjunctionMaxQuery(Arrays.<Query>asList(tq1, tq2), 0f), BooleanClause.Occur.SHOULD);
assertEquals(expected.build(), rewrittenQuery);
}
}
public void testBlendTerms() {
FakeFieldType ft1 = new FakeFieldType();
ft1.setName("foo");
FakeFieldType ft2 = new FakeFieldType();
ft2.setName("bar");
Term[] terms = new Term[] { new Term("foo", "baz"), new Term("bar", "baz") };
float[] boosts = new float[] {2, 3};
Query expected = BlendedTermQuery.booleanBlendedQuery(terms, boosts, false);
Query actual = MultiMatchQuery.blendTerm(
indexService.newQueryShardContext(randomInt(20), null, () -> { throw new UnsupportedOperationException(); }),
new BytesRef("baz"), null, 1f, new FieldAndFieldType(ft1, 2), new FieldAndFieldType(ft2, 3));
assertEquals(expected, actual);
}
public void testBlendTermsWithFieldBoosts() {
FakeFieldType ft1 = new FakeFieldType();
ft1.setName("foo");
ft1.setBoost(100);
FakeFieldType ft2 = new FakeFieldType();
ft2.setName("bar");
ft2.setBoost(10);
Term[] terms = new Term[] { new Term("foo", "baz"), new Term("bar", "baz") };
float[] boosts = new float[] {200, 30};
Query expected = BlendedTermQuery.booleanBlendedQuery(terms, boosts, false);
Query actual = MultiMatchQuery.blendTerm(
indexService.newQueryShardContext(randomInt(20), null, () -> { throw new UnsupportedOperationException(); }),
new BytesRef("baz"), null, 1f, new FieldAndFieldType(ft1, 2), new FieldAndFieldType(ft2, 3));
assertEquals(expected, actual);
}
public void testBlendTermsUnsupportedValue() {
FakeFieldType ft1 = new FakeFieldType();
ft1.setName("foo");
FakeFieldType ft2 = new FakeFieldType() {
@Override
public Query termQuery(Object value, QueryShardContext context) {
throw new IllegalArgumentException();
}
};
ft2.setName("bar");
Term[] terms = new Term[] { new Term("foo", "baz") };
float[] boosts = new float[] {2};
Query expected = BlendedTermQuery.booleanBlendedQuery(terms, boosts, false);
Query actual = MultiMatchQuery.blendTerm(
indexService.newQueryShardContext(randomInt(20), null, () -> { throw new UnsupportedOperationException(); }),
new BytesRef("baz"), null, 1f, new FieldAndFieldType(ft1, 2), new FieldAndFieldType(ft2, 3));
assertEquals(expected, actual);
}
public void testBlendNoTermQuery() {
FakeFieldType ft1 = new FakeFieldType();
ft1.setName("foo");
FakeFieldType ft2 = new FakeFieldType() {
@Override
public Query termQuery(Object value, QueryShardContext context) {
return new MatchAllDocsQuery();
}
};
ft2.setName("bar");
Term[] terms = new Term[] { new Term("foo", "baz") };
float[] boosts = new float[] {2};
Query expectedClause1 = BlendedTermQuery.booleanBlendedQuery(terms, boosts, false);
Query expectedClause2 = new BoostQuery(new MatchAllDocsQuery(), 3);
Query expected = new BooleanQuery.Builder().setDisableCoord(true)
.add(expectedClause1, Occur.SHOULD)
.add(expectedClause2, Occur.SHOULD)
.build();
Query actual = MultiMatchQuery.blendTerm(
indexService.newQueryShardContext(randomInt(20), null, () -> { throw new UnsupportedOperationException(); }),
new BytesRef("baz"), null, 1f, new FieldAndFieldType(ft1, 2), new FieldAndFieldType(ft2, 3));
assertEquals(expected, actual);
}
public void testMultiMatchPrefixWithAllField() throws IOException {
QueryShardContext queryShardContext = indexService.newQueryShardContext(
randomInt(20), null, () -> { throw new UnsupportedOperationException(); });
queryShardContext.setAllowUnmappedFields(true);
Query parsedQuery =
multiMatchQuery("foo").field("_all").type(MultiMatchQueryBuilder.Type.PHRASE_PREFIX).toQuery(queryShardContext);
assertThat(parsedQuery, instanceOf(MultiPhrasePrefixQuery.class));
assertThat(parsedQuery.toString(), equalTo("_all:\"foo*\""));
}
public void testMultiMatchCrossFieldsWithSynonyms() throws IOException {
QueryShardContext queryShardContext = indexService.newQueryShardContext(
randomInt(20), null, () -> { throw new UnsupportedOperationException(); });
// check that synonym query is used for a single field
Query parsedQuery =
multiMatchQuery("quick").field("name.first")
.type(MultiMatchQueryBuilder.Type.CROSS_FIELDS).toQuery(queryShardContext);
Term[] terms = new Term[2];
terms[0] = new Term("name.first", "quick");
terms[1] = new Term("name.first", "fast");
Query expectedQuery = new SynonymQuery(terms);
assertThat(parsedQuery, equalTo(expectedQuery));
// check that blended term query is used for multiple fields
parsedQuery =
multiMatchQuery("quick").field("name.first").field("name.last")
.type(MultiMatchQueryBuilder.Type.CROSS_FIELDS).toQuery(queryShardContext);
terms = new Term[4];
terms[0] = new Term("name.first", "quick");
terms[1] = new Term("name.first", "fast");
terms[2] = new Term("name.last", "quick");
terms[3] = new Term("name.last", "fast");
float[] boosts = new float[4];
Arrays.fill(boosts, 1.0f);
expectedQuery = BlendedTermQuery.dismaxBlendedQuery(terms, boosts, 1.0f);
assertThat(parsedQuery, equalTo(expectedQuery));
}
}
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