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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.search;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchType;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.DeprecationHandler;
import org.elasticsearch.common.xcontent.NamedXContentRegistry;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.search.aggregations.AggregationBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.collapse.CollapseBuilder;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.rescore.RescorerBuilder;
import org.elasticsearch.search.searchafter.SearchAfterBuilder;
import org.elasticsearch.search.slice.SliceBuilder;
import org.elasticsearch.search.sort.ScriptSortBuilder;
import org.elasticsearch.search.sort.SortBuilders;
import org.elasticsearch.search.sort.SortOrder;
import org.elasticsearch.search.suggest.SuggestBuilder;
import org.elasticsearch.test.AbstractQueryTestCase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Supplier;
import static java.util.Collections.emptyMap;
import static org.elasticsearch.test.ESTestCase.between;
import static org.elasticsearch.test.ESTestCase.generateRandomStringArray;
import static org.elasticsearch.test.ESTestCase.mockScript;
import static org.elasticsearch.test.ESTestCase.randomAlphaOfLengthBetween;
import static org.elasticsearch.test.ESTestCase.randomBoolean;
import static org.elasticsearch.test.ESTestCase.randomByte;
import static org.elasticsearch.test.ESTestCase.randomDouble;
import static org.elasticsearch.test.ESTestCase.randomFloat;
import static org.elasticsearch.test.ESTestCase.randomFrom;
import static org.elasticsearch.test.ESTestCase.randomInt;
import static org.elasticsearch.test.ESTestCase.randomIntBetween;
import static org.elasticsearch.test.ESTestCase.randomLong;
import static org.elasticsearch.test.ESTestCase.randomPositiveTimeValue;
import static org.elasticsearch.test.ESTestCase.randomShort;
import static org.elasticsearch.test.ESTestCase.randomTimeValue;
/**
* Builds random search requests.
*/
public class RandomSearchRequestGenerator {
private RandomSearchRequestGenerator() {}
/**
* Build a random search request.
*
* @param randomSearchSourceBuilder builds a random {@link SearchSourceBuilder}. You can use
* {@link #randomSearchSourceBuilder(Supplier, Supplier, Supplier, Supplier, Supplier)}.
*/
public static SearchRequest randomSearchRequest(Supplier randomSearchSourceBuilder) {
return randomSearchRequest(new SearchRequest(), randomSearchSourceBuilder);
}
/**
* Set random fields to the provided search request.
*
* @param searchRequest the search request
* @param randomSearchSourceBuilder builds a random {@link SearchSourceBuilder}. You can use
* {@link #randomSearchSourceBuilder(Supplier, Supplier, Supplier, Supplier, Supplier)}.
*/
public static SearchRequest randomSearchRequest(SearchRequest searchRequest, Supplier randomSearchSourceBuilder) {
searchRequest.allowPartialSearchResults(true);
if (randomBoolean()) {
searchRequest.indices(generateRandomStringArray(10, 10, false, false));
}
if (randomBoolean()) {
searchRequest.indicesOptions(IndicesOptions.fromOptions(randomBoolean(), randomBoolean(), randomBoolean(), randomBoolean()));
}
if (randomBoolean()) {
searchRequest.types(generateRandomStringArray(10, 10, false, false));
}
if (randomBoolean()) {
searchRequest.preference(randomAlphaOfLengthBetween(3, 10));
}
if (randomBoolean()) {
searchRequest.requestCache(randomBoolean());
}
if (randomBoolean()) {
searchRequest.routing(randomAlphaOfLengthBetween(3, 10));
}
if (randomBoolean()) {
searchRequest.scroll(randomPositiveTimeValue());
}
if (randomBoolean()) {
searchRequest.searchType(randomFrom(SearchType.DFS_QUERY_THEN_FETCH, SearchType.QUERY_THEN_FETCH));
}
if (randomBoolean()) {
searchRequest.source(randomSearchSourceBuilder.get());
}
return searchRequest;
}
public static SearchSourceBuilder randomSearchSourceBuilder(
Supplier randomHighlightBuilder,
Supplier randomSuggestBuilder,
Supplier> randomRescoreBuilder,
Supplier> randomExtBuilders,
Supplier randomCollapseBuilder) {
SearchSourceBuilder builder = new SearchSourceBuilder();
if (randomBoolean()) {
builder.from(randomIntBetween(0, 10000));
}
if (randomBoolean()) {
builder.size(randomIntBetween(0, 10000));
}
if (randomBoolean()) {
builder.explain(randomBoolean());
}
if (randomBoolean()) {
builder.version(randomBoolean());
}
if (randomBoolean()) {
builder.seqNoAndPrimaryTerm(randomBoolean());
}
if (randomBoolean()) {
builder.trackScores(randomBoolean());
}
if (randomBoolean()) {
builder.minScore(randomFloat() * 1000);
}
if (randomBoolean()) {
builder.timeout(TimeValue.parseTimeValue(randomTimeValue(), null, "timeout"));
}
if (randomBoolean()) {
builder.terminateAfter(randomIntBetween(1, 100000));
}
if (randomBoolean()) {
builder.trackTotalHits(randomBoolean());
}
switch(randomInt(2)) {
case 0:
builder.storedFields();
break;
case 1:
builder.storedField("_none_");
break;
case 2:
int fieldsSize = randomInt(25);
List fields = new ArrayList<>(fieldsSize);
for (int i = 0; i < fieldsSize; i++) {
fields.add(randomAlphaOfLengthBetween(5, 50));
}
builder.storedFields(fields);
break;
default:
throw new IllegalStateException();
}
if (randomBoolean()) {
int scriptFieldsSize = randomInt(25);
for (int i = 0; i < scriptFieldsSize; i++) {
if (randomBoolean()) {
builder.scriptField(randomAlphaOfLengthBetween(5, 50), mockScript("foo"), randomBoolean());
} else {
builder.scriptField(randomAlphaOfLengthBetween(5, 50), mockScript("foo"));
}
}
}
if (randomBoolean()) {
FetchSourceContext fetchSourceContext;
int branch = randomInt(5);
String[] includes = new String[randomIntBetween(0, 20)];
for (int i = 0; i < includes.length; i++) {
includes[i] = randomAlphaOfLengthBetween(5, 20);
}
String[] excludes = new String[randomIntBetween(0, 20)];
for (int i = 0; i < excludes.length; i++) {
excludes[i] = randomAlphaOfLengthBetween(5, 20);
}
switch (branch) {
case 0:
fetchSourceContext = new FetchSourceContext(randomBoolean());
break;
case 1:
fetchSourceContext = new FetchSourceContext(true, includes, excludes);
break;
case 2:
fetchSourceContext = new FetchSourceContext(true, new String[]{randomAlphaOfLengthBetween(5, 20)},
new String[]{randomAlphaOfLengthBetween(5, 20)});
break;
case 3:
fetchSourceContext = new FetchSourceContext(true, includes, excludes);
break;
case 4:
fetchSourceContext = new FetchSourceContext(true, includes, null);
break;
case 5:
fetchSourceContext = new FetchSourceContext(true, new String[] {randomAlphaOfLengthBetween(5, 20)}, null);
break;
default:
throw new IllegalStateException();
}
builder.fetchSource(fetchSourceContext);
}
if (randomBoolean()) {
int size = randomIntBetween(0, 20);
List statsGroups = new ArrayList<>(size);
for (int i = 0; i < size; i++) {
statsGroups.add(randomAlphaOfLengthBetween(5, 20));
}
builder.stats(statsGroups);
}
if (randomBoolean()) {
int indexBoostSize = randomIntBetween(1, 10);
for (int i = 0; i < indexBoostSize; i++) {
builder.indexBoost(randomAlphaOfLengthBetween(5, 20), randomFloat() * 10);
}
}
if (randomBoolean()) {
builder.query(QueryBuilders.termQuery(randomAlphaOfLengthBetween(5, 20), randomAlphaOfLengthBetween(5, 20)));
}
if (randomBoolean()) {
builder.postFilter(QueryBuilders.termQuery(randomAlphaOfLengthBetween(5, 20), randomAlphaOfLengthBetween(5, 20)));
}
if (randomBoolean()) {
int numSorts = randomIntBetween(1, 5);
for (int i = 0; i < numSorts; i++) {
int branch = randomInt(5);
switch (branch) {
case 0:
builder.sort(SortBuilders.fieldSort(randomAlphaOfLengthBetween(5, 20)).order(randomFrom(SortOrder.values())));
break;
case 1:
builder.sort(SortBuilders.geoDistanceSort(randomAlphaOfLengthBetween(5, 20),
AbstractQueryTestCase.randomGeohash(1, 12)).order(randomFrom(SortOrder.values())));
break;
case 2:
builder.sort(SortBuilders.scoreSort().order(randomFrom(SortOrder.values())));
break;
case 3:
builder.sort(SortBuilders
.scriptSort(
new Script(ScriptType.INLINE, Script.DEFAULT_SCRIPT_LANG, "foo", emptyMap()),
ScriptSortBuilder.ScriptSortType.NUMBER)
.order(randomFrom(SortOrder.values())));
break;
case 4:
builder.sort(randomAlphaOfLengthBetween(5, 20));
break;
case 5:
builder.sort(randomAlphaOfLengthBetween(5, 20), randomFrom(SortOrder.values()));
break;
}
}
}
if (randomBoolean()) {
int numSearchFrom = randomIntBetween(1, 5);
try {
// We build a json version of the search_from first in order to
// ensure that every number type remain the same before/after xcontent (de)serialization.
// This is not a problem because the final type of each field value is extracted from associated sort field.
// This little trick ensure that equals and hashcode are the same when using the xcontent serialization.
XContentBuilder jsonBuilder = XContentFactory.jsonBuilder();
jsonBuilder.startObject();
jsonBuilder.startArray("search_from");
for (int i = 0; i < numSearchFrom; i++) {
int branch = randomInt(8);
switch (branch) {
case 0:
jsonBuilder.value(randomInt());
break;
case 1:
jsonBuilder.value(randomFloat());
break;
case 2:
jsonBuilder.value(randomLong());
break;
case 3:
jsonBuilder.value(randomDouble());
break;
case 4:
jsonBuilder.value(randomAlphaOfLengthBetween(5, 20));
break;
case 5:
jsonBuilder.value(randomBoolean());
break;
case 6:
jsonBuilder.value(randomByte());
break;
case 7:
jsonBuilder.value(randomShort());
break;
case 8:
jsonBuilder.value(new Text(randomAlphaOfLengthBetween(5, 20)));
break;
}
}
jsonBuilder.endArray();
jsonBuilder.endObject();
XContentParser parser = XContentFactory.xContent(XContentType.JSON)
.createParser(NamedXContentRegistry.EMPTY, DeprecationHandler.THROW_UNSUPPORTED_OPERATION,
BytesReference.bytes(jsonBuilder).streamInput());
parser.nextToken();
parser.nextToken();
parser.nextToken();
builder.searchAfter(SearchAfterBuilder.fromXContent(parser).getSortValues());
} catch (IOException e) {
throw new RuntimeException("Error building search_from", e);
}
}
if (randomBoolean()) {
builder.highlighter(randomHighlightBuilder.get());
}
if (randomBoolean()) {
builder.suggest(randomSuggestBuilder.get());
}
if (randomBoolean()) {
int numRescores = randomIntBetween(1, 5);
for (int i = 0; i < numRescores; i++) {
builder.addRescorer(randomRescoreBuilder.get());
}
}
if (randomBoolean()) {
builder.aggregation(AggregationBuilders.avg(randomAlphaOfLengthBetween(5, 20)));
}
if (randomBoolean()) {
builder.ext(randomExtBuilders.get());
}
if (randomBoolean()) {
String field = randomBoolean() ? null : randomAlphaOfLengthBetween(5, 20);
int max = between(2, 1000);
int id = randomInt(max-1);
if (field == null) {
builder.slice(new SliceBuilder(id, max));
} else {
builder.slice(new SliceBuilder(field, id, max));
}
}
if (randomBoolean()) {
builder.collapse(randomCollapseBuilder.get());
}
return builder;
}
}
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