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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.query;
import org.apache.lucene.index.Term;
import org.apache.lucene.queries.ExtendedCommonTermsQuery;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.BoostQuery;
import org.apache.lucene.search.DisjunctionMaxQuery;
import org.apache.lucene.search.FuzzyQuery;
import org.apache.lucene.search.MatchAllDocsQuery;
import org.apache.lucene.search.MatchNoDocsQuery;
import org.apache.lucene.search.PhraseQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.elasticsearch.common.lucene.all.AllTermQuery;
import org.elasticsearch.common.lucene.search.MultiPhrasePrefixQuery;
import org.elasticsearch.index.search.MatchQuery;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.elasticsearch.index.query.QueryBuilders.multiMatchQuery;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertBooleanSubQuery;
import static org.hamcrest.CoreMatchers.either;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.instanceOf;
public class MultiMatchQueryBuilderTests extends AbstractQueryTestCase<MultiMatchQueryBuilder> {
@Override
protected MultiMatchQueryBuilder doCreateTestQueryBuilder() {
String fieldName = randomFrom(STRING_FIELD_NAME, INT_FIELD_NAME, DOUBLE_FIELD_NAME, BOOLEAN_FIELD_NAME, DATE_FIELD_NAME);
if (fieldName.equals(DATE_FIELD_NAME)) {
assumeTrue("test with date fields runs only when at least a type is registered", getCurrentTypes().length > 0);
}
// creates the query with random value and field name
Object value;
if (fieldName.equals(STRING_FIELD_NAME)) {
value = getRandomQueryText();
} else {
value = getRandomValueForFieldName(fieldName);
}
MultiMatchQueryBuilder query = new MultiMatchQueryBuilder(value, fieldName);
// field with random boost
if (randomBoolean()) {
query.field(fieldName, randomFloat() * 10);
}
// sets other parameters of the multi match query
if (randomBoolean()) {
query.type(randomFrom(MultiMatchQueryBuilder.Type.values()));
}
if (randomBoolean()) {
query.operator(randomFrom(Operator.values()));
}
if (randomBoolean()) {
query.analyzer(randomAnalyzer());
}
if (randomBoolean()) {
query.slop(randomIntBetween(0, 5));
}
if (randomBoolean()) {
query.fuzziness(randomFuzziness(fieldName));
}
if (randomBoolean()) {
query.prefixLength(randomIntBetween(0, 5));
}
if (randomBoolean()) {
query.maxExpansions(randomIntBetween(1, 5));
}
if (randomBoolean()) {
query.minimumShouldMatch(randomMinimumShouldMatch());
}
if (randomBoolean()) {
query.fuzzyRewrite(getRandomRewriteMethod());
}
if (randomBoolean()) {
query.useDisMax(randomBoolean());
}
if (randomBoolean()) {
query.tieBreaker(randomFloat());
}
if (randomBoolean()) {
query.lenient(randomBoolean());
}
if (randomBoolean()) {
query.cutoffFrequency((float) 10 / randomIntBetween(1, 100));
}
if (randomBoolean()) {
query.zeroTermsQuery(randomFrom(MatchQuery.ZeroTermsQuery.values()));
}
// test with fields with boost and patterns delegated to the tests further below
return query;
}
@Override
protected Map<String, MultiMatchQueryBuilder> getAlternateVersions() {
Map<String, MultiMatchQueryBuilder> alternateVersions = new HashMap<>();
String query = "{\n" +
" \"multi_match\": {\n" +
" \"query\": \"foo bar\",\n" +
" \"fields\": \"myField\"\n" +
" }\n" +
"}";
alternateVersions.put(query, new MultiMatchQueryBuilder("foo bar", "myField"));
return alternateVersions;
}
@Override
protected void doAssertLuceneQuery(MultiMatchQueryBuilder queryBuilder, Query query, QueryShardContext context) throws IOException {
// we rely on integration tests for deeper checks here
assertThat(query, either(instanceOf(BoostQuery.class)).or(instanceOf(TermQuery.class)).or(instanceOf(AllTermQuery.class))
.or(instanceOf(BooleanQuery.class)).or(instanceOf(DisjunctionMaxQuery.class))
.or(instanceOf(FuzzyQuery.class)).or(instanceOf(MultiPhrasePrefixQuery.class))
.or(instanceOf(MatchAllDocsQuery.class)).or(instanceOf(ExtendedCommonTermsQuery.class))
.or(instanceOf(MatchNoDocsQuery.class)).or(instanceOf(PhraseQuery.class)));
}
public void testIllegaArguments() {
try {
new MultiMatchQueryBuilder(null, "field");
fail("value must not be null");
} catch (IllegalArgumentException e) {
// expected
}
try {
new MultiMatchQueryBuilder("value", (String[]) null);
fail("initial fields must be supplied at construction time must not be null");
} catch (IllegalArgumentException e) {
// expected
}
try {
new MultiMatchQueryBuilder("value", new String[]{""});
fail("field names cannot be empty");
} catch (IllegalArgumentException e) {
// expected
}
try {
new MultiMatchQueryBuilder("value", "field").type(null);
fail("type must not be null");
} catch (IllegalArgumentException e) {
// expected
}
}
public void testToQueryBoost() throws IOException {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
QueryShardContext shardContext = createShardContext();
MultiMatchQueryBuilder multiMatchQueryBuilder = new MultiMatchQueryBuilder("test");
multiMatchQueryBuilder.field(STRING_FIELD_NAME, 5f);
Query query = multiMatchQueryBuilder.toQuery(shardContext);
assertTermOrBoostQuery(query, STRING_FIELD_NAME, "test", 5f);
multiMatchQueryBuilder = new MultiMatchQueryBuilder("test");
multiMatchQueryBuilder.field(STRING_FIELD_NAME, 5f);
multiMatchQueryBuilder.boost(2f);
query = multiMatchQueryBuilder.toQuery(shardContext);
assertThat(query, instanceOf(BoostQuery.class));
BoostQuery boostQuery = (BoostQuery) query;
assertThat(boostQuery.getBoost(), equalTo(2f));
assertTermOrBoostQuery(boostQuery.getQuery(), STRING_FIELD_NAME, "test", 5f);
}
public void testToQueryMultipleTermsBooleanQuery() throws Exception {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
Query query = multiMatchQuery("test1 test2").field(STRING_FIELD_NAME).useDisMax(false).toQuery(createShardContext());
assertThat(query, instanceOf(BooleanQuery.class));
BooleanQuery bQuery = (BooleanQuery) query;
assertThat(bQuery.clauses().size(), equalTo(2));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 0).getTerm(), equalTo(new Term(STRING_FIELD_NAME, "test1")));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 1).getTerm(), equalTo(new Term(STRING_FIELD_NAME, "test2")));
}
public void testToQueryMultipleFieldsBooleanQuery() throws Exception {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
Query query = multiMatchQuery("test").field(STRING_FIELD_NAME).field(STRING_FIELD_NAME_2).useDisMax(false).toQuery(createShardContext());
assertThat(query, instanceOf(BooleanQuery.class));
BooleanQuery bQuery = (BooleanQuery) query;
assertThat(bQuery.clauses().size(), equalTo(2));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 0).getTerm(), equalTo(new Term(STRING_FIELD_NAME, "test")));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 1).getTerm(), equalTo(new Term(STRING_FIELD_NAME_2, "test")));
}
public void testToQueryMultipleFieldsDisMaxQuery() throws Exception {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
Query query = multiMatchQuery("test").field(STRING_FIELD_NAME).field(STRING_FIELD_NAME_2).useDisMax(true).toQuery(createShardContext());
assertThat(query, instanceOf(DisjunctionMaxQuery.class));
DisjunctionMaxQuery disMaxQuery = (DisjunctionMaxQuery) query;
List<Query> disjuncts = disMaxQuery.getDisjuncts();
assertThat(disjuncts.get(0), instanceOf(TermQuery.class));
assertThat(((TermQuery) disjuncts.get(0)).getTerm(), equalTo(new Term(STRING_FIELD_NAME, "test")));
assertThat(disjuncts.get(1), instanceOf(TermQuery.class));
assertThat(((TermQuery) disjuncts.get(1)).getTerm(), equalTo(new Term(STRING_FIELD_NAME_2, "test")));
}
public void testToQueryFieldsWildcard() throws Exception {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
Query query = multiMatchQuery("test").field("mapped_str*").useDisMax(false).toQuery(createShardContext());
assertThat(query, instanceOf(BooleanQuery.class));
BooleanQuery bQuery = (BooleanQuery) query;
assertThat(bQuery.clauses().size(), equalTo(2));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 0).getTerm(), equalTo(new Term(STRING_FIELD_NAME, "test")));
assertThat(assertBooleanSubQuery(query, TermQuery.class, 1).getTerm(), equalTo(new Term(STRING_FIELD_NAME_2, "test")));
}
public void testFromJson() throws IOException {
String json =
"{\n" +
" \"multi_match\" : {\n" +
" \"query\" : \"quick brown fox\",\n" +
" \"fields\" : [ \"title^1.0\", \"title.original^1.0\", \"title.shingles^1.0\" ],\n" +
" \"type\" : \"most_fields\",\n" +
" \"operator\" : \"OR\",\n" +
" \"slop\" : 0,\n" +
" \"prefix_length\" : 0,\n" +
" \"max_expansions\" : 50,\n" +
" \"lenient\" : false,\n" +
" \"zero_terms_query\" : \"NONE\",\n" +
" \"boost\" : 1.0\n" +
" }\n" +
"}";
MultiMatchQueryBuilder parsed = (MultiMatchQueryBuilder) parseQuery(json);
checkGeneratedJson(json, parsed);
assertEquals(json, "quick brown fox", parsed.value());
assertEquals(json, 3, parsed.fields().size());
assertEquals(json, MultiMatchQueryBuilder.Type.MOST_FIELDS, parsed.type());
assertEquals(json, Operator.OR, parsed.operator());
}
}
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