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Several field mappers have a null_value parameter, that allows you to specify a placeholder value to insert into a document if the incoming value for that field is null. The default value for this is always null, meaning "add no placeholder". However, we explicitly bar users from setting this parameter directly to null (done in #7978, in order to fix an NPE). This exclusion means that if a mapper is serialized with include_defaults, then we either need to special-case null_value to ensure that it is not output when it holds the default value, or we find that the resulting serialized form cannot be used to create a mapping. This stops us doing some useful generic testing of mappers. This commit permits null as a parameter value for null_value, and changes the tests to check that it is a) permissible and b) applied without throwing errors. As part of the testing changes, a new base class MapperServiceTestCase is refactored from MapperTestCase, holding the various helper methods related to building mappings but not the single-mapper specific abstract methods. Closes #58823
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test/framework/src/main/java/org/elasticsearch/index/mapper/MapperServiceTestCase.java
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|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| /* | ||
| * 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.mapper; | ||
|
|
||
| import org.apache.lucene.analysis.standard.StandardAnalyzer; | ||
| import org.apache.lucene.index.IndexReader; | ||
| import org.apache.lucene.index.IndexWriterConfig; | ||
| import org.apache.lucene.index.RandomIndexWriter; | ||
| import org.apache.lucene.store.Directory; | ||
| import org.elasticsearch.Version; | ||
| import org.elasticsearch.cluster.metadata.IndexMetadata; | ||
| import org.elasticsearch.common.CheckedConsumer; | ||
| import org.elasticsearch.common.bytes.BytesReference; | ||
| import org.elasticsearch.common.compress.CompressedXContent; | ||
| import org.elasticsearch.common.settings.Settings; | ||
| import org.elasticsearch.common.xcontent.XContentBuilder; | ||
| import org.elasticsearch.common.xcontent.XContentFactory; | ||
| import org.elasticsearch.common.xcontent.XContentType; | ||
| import org.elasticsearch.common.xcontent.json.JsonXContent; | ||
| import org.elasticsearch.index.IndexSettings; | ||
| import org.elasticsearch.index.analysis.AnalyzerScope; | ||
| import org.elasticsearch.index.analysis.IndexAnalyzers; | ||
| import org.elasticsearch.index.analysis.NamedAnalyzer; | ||
| import org.elasticsearch.index.query.QueryShardContext; | ||
| import org.elasticsearch.index.similarity.SimilarityService; | ||
| import org.elasticsearch.indices.IndicesModule; | ||
| import org.elasticsearch.indices.mapper.MapperRegistry; | ||
| import org.elasticsearch.plugins.MapperPlugin; | ||
| import org.elasticsearch.plugins.Plugin; | ||
| import org.elasticsearch.script.ScriptService; | ||
| import org.elasticsearch.test.ESTestCase; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.Collection; | ||
|
|
||
| import static java.util.Collections.emptyList; | ||
| import static java.util.Collections.emptyMap; | ||
| import static java.util.Collections.singletonMap; | ||
| import static java.util.stream.Collectors.toList; | ||
| import static org.mockito.Matchers.anyObject; | ||
| import static org.mockito.Matchers.anyString; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.when; | ||
|
|
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| public abstract class MapperServiceTestCase extends ESTestCase { | ||
|
|
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| protected static final Settings SETTINGS = Settings.builder().put("index.version.created", Version.CURRENT).build(); | ||
|
|
||
| protected Collection<? extends Plugin> getPlugins() { | ||
| return emptyList(); | ||
| } | ||
|
|
||
| protected Settings getIndexSettings() { | ||
| return SETTINGS; | ||
| } | ||
|
|
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| protected IndexAnalyzers createIndexAnalyzers(IndexSettings indexSettings) { | ||
| return new IndexAnalyzers( | ||
| singletonMap("default", new NamedAnalyzer("default", AnalyzerScope.INDEX, new StandardAnalyzer())), | ||
| emptyMap(), | ||
| emptyMap() | ||
| ); | ||
| } | ||
|
|
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| protected final String randomIndexOptions() { | ||
| return randomFrom("docs", "freqs", "positions", "offsets"); | ||
| } | ||
|
|
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| protected final DocumentMapper createDocumentMapper(XContentBuilder mappings) throws IOException { | ||
| return createMapperService(mappings).documentMapper(); | ||
| } | ||
|
|
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| protected final MapperService createMapperService(XContentBuilder mappings) throws IOException { | ||
| return createMapperService(getIndexSettings(), mappings); | ||
| } | ||
|
|
||
| /** | ||
| * Create a {@link MapperService} like we would for an index. | ||
| */ | ||
| protected final MapperService createMapperService(Settings settings, XContentBuilder mapping) throws IOException { | ||
| IndexMetadata meta = IndexMetadata.builder("index") | ||
| .settings(Settings.builder().put("index.version.created", Version.CURRENT)) | ||
| .numberOfReplicas(0) | ||
| .numberOfShards(1) | ||
| .build(); | ||
| IndexSettings indexSettings = new IndexSettings(meta, settings); | ||
| MapperRegistry mapperRegistry = new IndicesModule( | ||
| getPlugins().stream().filter(p -> p instanceof MapperPlugin).map(p -> (MapperPlugin) p).collect(toList()) | ||
| ).getMapperRegistry(); | ||
| ScriptService scriptService = new ScriptService(settings, emptyMap(), emptyMap()); | ||
| SimilarityService similarityService = new SimilarityService(indexSettings, scriptService, emptyMap()); | ||
| MapperService mapperService = new MapperService( | ||
| indexSettings, | ||
| createIndexAnalyzers(indexSettings), | ||
| xContentRegistry(), | ||
| similarityService, | ||
| mapperRegistry, | ||
| () -> { throw new UnsupportedOperationException(); }, | ||
| () -> true | ||
| ); | ||
| merge(mapperService, mapping); | ||
| return mapperService; | ||
| } | ||
|
|
||
| protected final void withLuceneIndex( | ||
| MapperService mapperService, | ||
| CheckedConsumer<RandomIndexWriter, IOException> builder, | ||
| CheckedConsumer<IndexReader, IOException> test | ||
| ) throws IOException { | ||
| try ( | ||
| Directory dir = newDirectory(); | ||
| RandomIndexWriter iw = new RandomIndexWriter(random(), dir, new IndexWriterConfig(mapperService.indexAnalyzer())) | ||
| ) { | ||
| builder.accept(iw); | ||
| try (IndexReader reader = iw.getReader()) { | ||
| test.accept(reader); | ||
| } | ||
| } | ||
| } | ||
|
|
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| protected final SourceToParse source(CheckedConsumer<XContentBuilder, IOException> build) throws IOException { | ||
| XContentBuilder builder = JsonXContent.contentBuilder().startObject(); | ||
| build.accept(builder); | ||
| builder.endObject(); | ||
| return new SourceToParse("test", "_doc", "1", BytesReference.bytes(builder), XContentType.JSON); | ||
| } | ||
|
|
||
| /** | ||
| * Merge a new mapping into the one in the provided {@link MapperService}. | ||
| */ | ||
| protected final void merge(MapperService mapperService, XContentBuilder mapping) throws IOException { | ||
| mapperService.merge("_doc", new CompressedXContent(BytesReference.bytes(mapping)), MapperService.MergeReason.MAPPING_UPDATE); | ||
| } | ||
|
|
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| protected final XContentBuilder mapping(CheckedConsumer<XContentBuilder, IOException> buildFields) throws IOException { | ||
| XContentBuilder builder = XContentFactory.jsonBuilder().startObject().startObject("_doc").startObject("properties"); | ||
| buildFields.accept(builder); | ||
| return builder.endObject().endObject().endObject(); | ||
| } | ||
|
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| protected final XContentBuilder fieldMapping(CheckedConsumer<XContentBuilder, IOException> buildField) throws IOException { | ||
| return mapping(b -> { | ||
| b.startObject("field"); | ||
| buildField.accept(b); | ||
| b.endObject(); | ||
| }); | ||
| } | ||
|
|
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| QueryShardContext createQueryShardContext(MapperService mapperService) { | ||
| QueryShardContext queryShardContext = mock(QueryShardContext.class); | ||
| when(queryShardContext.getMapperService()).thenReturn(mapperService); | ||
| when(queryShardContext.fieldMapper(anyString())).thenAnswer(inv -> mapperService.fieldType(inv.getArguments()[0].toString())); | ||
| when(queryShardContext.getIndexAnalyzers()).thenReturn(mapperService.getIndexAnalyzers()); | ||
| when(queryShardContext.getSearchQuoteAnalyzer(anyObject())).thenCallRealMethod(); | ||
| when(queryShardContext.getSearchAnalyzer(anyObject())).thenCallRealMethod(); | ||
| when(queryShardContext.getIndexSettings()).thenReturn(mapperService.getIndexSettings()); | ||
| when(queryShardContext.simpleMatchToIndexNames(anyObject())).thenAnswer( | ||
| inv -> mapperService.simpleMatchToFullName(inv.getArguments()[0].toString()) | ||
| ); | ||
| return queryShardContext; | ||
| } | ||
| } |
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