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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.collapse;
import org.apache.lucene.analysis.MockAnalyzer;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexOptions;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.search.Query;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.NamedXContentRegistry;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.mapper.KeywordFieldMapper;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.NumberFieldMapper;
import org.elasticsearch.index.query.InnerHitBuilder;
import org.elasticsearch.index.query.InnerHitBuilderTests;
import org.elasticsearch.index.query.QueryShardContext;
import org.elasticsearch.search.SearchContextException;
import org.elasticsearch.search.SearchModule;
import org.elasticsearch.search.internal.SearchContext;
import org.elasticsearch.test.AbstractSerializingTestCase;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static java.util.Collections.emptyList;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class CollapseBuilderTests extends AbstractSerializingTestCase<CollapseBuilder> {
private static NamedWriteableRegistry namedWriteableRegistry;
private static NamedXContentRegistry xContentRegistry;
@BeforeClass
public static void init() {
SearchModule searchModule = new SearchModule(Settings.EMPTY, false, emptyList());
namedWriteableRegistry = new NamedWriteableRegistry(searchModule.getNamedWriteables());
xContentRegistry = new NamedXContentRegistry(searchModule.getNamedXContents());
}
@AfterClass
public static void afterClass() throws Exception {
namedWriteableRegistry = null;
xContentRegistry = null;
}
public static CollapseBuilder randomCollapseBuilder() {
return randomCollapseBuilder(true);
}
public static CollapseBuilder randomCollapseBuilder(boolean multiInnerHits) {
CollapseBuilder builder = new CollapseBuilder(randomAlphaOfLength(10));
builder.setMaxConcurrentGroupRequests(randomIntBetween(1, 48));
int numInnerHits = randomIntBetween(0, multiInnerHits ? 5 : 1);
if (numInnerHits == 1) {
InnerHitBuilder innerHit = InnerHitBuilderTests.randomInnerHits();
builder.setInnerHits(innerHit);
} else if (numInnerHits > 1) {
List<InnerHitBuilder> innerHits = new ArrayList<>(numInnerHits);
for (int i = 0; i < numInnerHits; i++) {
innerHits.add(InnerHitBuilderTests.randomInnerHits());
}
builder.setInnerHits(innerHits);
}
return builder;
}
@Override
protected CollapseBuilder createTestInstance() {
return randomCollapseBuilder();
}
@Override
protected Writeable.Reader<CollapseBuilder> instanceReader() {
return CollapseBuilder::new;
}
@Override
protected NamedWriteableRegistry getNamedWriteableRegistry() {
return namedWriteableRegistry;
}
@Override
protected NamedXContentRegistry xContentRegistry() {
return xContentRegistry;
}
private SearchContext mockSearchContext() {
SearchContext context = mock(SearchContext.class);
QueryShardContext shardContext = mock(QueryShardContext.class);
when(context.getQueryShardContext()).thenReturn(shardContext);
when(context.scrollContext()).thenReturn(null);
when(context.rescore()).thenReturn(null);
when(context.searchAfter()).thenReturn(null);
return context;
}
public void testBuild() throws IOException {
Directory dir = new RAMDirectory();
try (IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random())))) {
writer.commit();
}
SearchContext searchContext = mockSearchContext();
try (IndexReader reader = DirectoryReader.open(dir)) {
when(searchContext.getQueryShardContext().getIndexReader()).thenReturn(reader);
MappedFieldType numberFieldType =
new NumberFieldMapper.NumberFieldType(NumberFieldMapper.NumberType.LONG);
MappedFieldType keywordFieldType =
new KeywordFieldMapper.KeywordFieldType();
for (MappedFieldType fieldType : new MappedFieldType[] {numberFieldType, keywordFieldType}) {
fieldType.setName("field");
fieldType.setHasDocValues(true);
when(searchContext.getQueryShardContext().fieldMapper("field")).thenReturn(fieldType);
CollapseBuilder builder = new CollapseBuilder("field");
CollapseContext collapseContext = builder.build(searchContext);
assertEquals(collapseContext.getFieldType(), fieldType);
fieldType.setIndexOptions(IndexOptions.NONE);
collapseContext = builder.build(searchContext);
assertEquals(collapseContext.getFieldType(), fieldType);
fieldType.setHasDocValues(false);
SearchContextException exc = expectThrows(SearchContextException.class, () -> builder.build(searchContext));
assertEquals(exc.getMessage(), "cannot collapse on field `field` without `doc_values`");
fieldType.setHasDocValues(true);
builder.setInnerHits(new InnerHitBuilder());
exc = expectThrows(SearchContextException.class, () -> builder.build(searchContext));
assertEquals(exc.getMessage(),
"cannot expand `inner_hits` for collapse field `field`, " +
"only indexed field can retrieve `inner_hits`");
}
}
}
public void testBuildWithSearchContextExceptions() throws IOException {
SearchContext context = mockSearchContext();
{
CollapseBuilder builder = new CollapseBuilder("unknown_field");
SearchContextException exc = expectThrows(SearchContextException.class, () -> builder.build(context));
assertEquals(exc.getMessage(), "no mapping found for `unknown_field` in order to collapse on");
}
{
MappedFieldType fieldType = new MappedFieldType() {
@Override
public MappedFieldType clone() {
return null;
}
@Override
public String typeName() {
return null;
}
@Override
public Query termQuery(Object value, QueryShardContext context) {
return null;
}
};
fieldType.setName("field");
fieldType.setHasDocValues(true);
when(context.getQueryShardContext().fieldMapper("field")).thenReturn(fieldType);
CollapseBuilder builder = new CollapseBuilder("field");
SearchContextException exc = expectThrows(SearchContextException.class, () -> builder.build(context));
assertEquals(exc.getMessage(), "unknown type for collapse field `field`, only keywords and numbers are accepted");
}
}
@Override
protected CollapseBuilder doParseInstance(XContentParser parser) throws IOException {
return CollapseBuilder.fromXContent(parser);
}
/**
* Rewrite this test to disable xcontent shuffling on the highlight builder
*/
@Override
public void testFromXContent() throws IOException {
for (int runs = 0; runs < NUMBER_OF_TEST_RUNS; runs++) {
CollapseBuilder testInstance = createTestInstance();
XContentType xContentType = randomFrom(XContentType.values());
XContentBuilder builder = toXContent(testInstance, xContentType);
XContentBuilder shuffled = shuffleXContent(builder, "fields");
assertParsedInstance(xContentType, shuffled.bytes(), testInstance);
for (Map.Entry<String, CollapseBuilder> alternateVersion : getAlternateVersions().entrySet()) {
String instanceAsString = alternateVersion.getKey();
assertParsedInstance(XContentType.JSON, new BytesArray(instanceAsString), alternateVersion.getValue());
}
}
}
}
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