SizeMappingTests.java example

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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.index.mapper.size;

import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;

import java.util.Collections;

import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.index.IndexService;
import org.elasticsearch.index.mapper.DocumentMapper;
import org.elasticsearch.index.mapper.DocumentMapperParser;
import org.elasticsearch.index.mapper.Mapper;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.mapper.MetadataFieldMapper;
import org.elasticsearch.index.mapper.ParsedDocument;
import org.elasticsearch.index.mapper.SourceToParse;
import org.elasticsearch.indices.IndicesModule;
import org.elasticsearch.indices.mapper.MapperRegistry;
import org.elasticsearch.test.ESSingleNodeTestCase;
import org.junit.Before;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.hamcrest.Matchers.nullValue;

public class SizeMappingTests extends ESSingleNodeTestCase {

    IndexService indexService;
    MapperService mapperService;
    DocumentMapperParser parser;

    @Before
    public void before() {
        indexService = createIndex("test");
        Map<String, MetadataFieldMapper.TypeParser> metadataMappers = new HashMap<>();
        IndicesModule indices = new IndicesModule();
        indices.registerMetadataMapper(SizeFieldMapper.NAME, new SizeFieldMapper.TypeParser());
        mapperService = new MapperService(indexService.index(), indexService.indexSettings(), indexService.analysisService(), indexService.similarityService().similarityLookupService(), null, indices.getMapperRegistry());
        parser = mapperService.documentMapperParser();
    }

    public void testSizeEnabled() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startObject("_size").field("enabled", true).endObject()
                .endObject().endObject().string();
        DocumentMapper docMapper = parser.parse("type", new CompressedXContent(mapping));

        BytesReference source = XContentFactory.jsonBuilder()
                .startObject()
                .field("field", "value")
                .endObject()
                .bytes();
        ParsedDocument doc = docMapper.parse(SourceToParse.source(source).type("type").id("1"));

        assertThat(doc.rootDoc().getField("_size").fieldType().stored(), equalTo(true));
        assertThat(doc.rootDoc().getField("_size").tokenStream(docMapper.mappers().indexAnalyzer(), null), notNullValue());
    }
    
    public void testSizeEnabledAndStoredBackcompat() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startObject("_size").field("enabled", true).field("store", "yes").endObject()
                .endObject().endObject().string();
        Settings indexSettings = Settings.builder().put(IndexMetaData.SETTING_VERSION_CREATED, Version.V_1_4_2.id).build();

        indexService = createIndex("test2", indexSettings);
        MapperRegistry mapperRegistry = new MapperRegistry(
                Collections.<String, Mapper.TypeParser>emptyMap(),
                Collections.<String, MetadataFieldMapper.TypeParser>singletonMap(SizeFieldMapper.NAME, new SizeFieldMapper.TypeParser()));
        parser = new DocumentMapperParser(indexService.indexSettings(), indexService.mapperService(),
                indexService.analysisService(), indexService.similarityService().similarityLookupService(), null, mapperRegistry);
        DocumentMapper docMapper = parser.parse("type", new CompressedXContent(mapping));

        BytesReference source = XContentFactory.jsonBuilder()
                .startObject()
                .field("field", "value")
                .endObject()
                .bytes();
        ParsedDocument doc = docMapper.parse(SourceToParse.source(source).type("type").id("1"));

        assertThat(doc.rootDoc().getField("_size").fieldType().stored(), equalTo(true));
        assertThat(doc.rootDoc().getField("_size").tokenStream(docMapper.mappers().indexAnalyzer(), null), notNullValue());
    }
    
    public void testSizeDisabled() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startObject("_size").field("enabled", false).endObject()
                .endObject().endObject().string();
        DocumentMapper docMapper = parser.parse("type", new CompressedXContent(mapping));

        BytesReference source = XContentFactory.jsonBuilder()
                .startObject()
                .field("field", "value")
                .endObject()
                .bytes();
        ParsedDocument doc = docMapper.parse(SourceToParse.source(source).type("type").id("1"));

        assertThat(doc.rootDoc().getField("_size"), nullValue());
    }
    
    public void testSizeNotSet() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .endObject().endObject().string();
        DocumentMapper docMapper = parser.parse("type", new CompressedXContent(mapping));

        BytesReference source = XContentFactory.jsonBuilder()
                .startObject()
                .field("field", "value")
                .endObject()
                .bytes();
        ParsedDocument doc = docMapper.parse(SourceToParse.source(source).type("type").id("1"));

        assertThat(doc.rootDoc().getField("_size"), nullValue());
    }
    
    public void testThatDisablingWorksWhenMerging() throws Exception {
        String enabledMapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startObject("_size").field("enabled", true).endObject()
                .endObject().endObject().string();
        DocumentMapper enabledMapper = mapperService.merge("type", new CompressedXContent(enabledMapping), MapperService.MergeReason.MAPPING_UPDATE, false);

        String disabledMapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startObject("_size").field("enabled", false).endObject()
                .endObject().endObject().string();
        DocumentMapper disabledMapper = mapperService.merge("type", new CompressedXContent(disabledMapping), MapperService.MergeReason.MAPPING_UPDATE, false);

        assertThat(disabledMapper.metadataMapper(SizeFieldMapper.class).enabled(), is(false));
    }
}