Examples with DocumentMapper org.opensearch.index.mapper.DocumentMapper used on opensource projects

Example 16 with DocumentMapper

use of org.opensearch.index.mapper.DocumentMapper in project OpenSearch by opensearch-project.

the class FetchPhase method prepareNonNestedHitContext.

/**
 * Resets the provided {@link HitContext} with information on the current
 * document. This includes the following:
 *   - Adding an initial {@link SearchHit} instance.
 *   - Loading the document source and setting it on {@link SourceLookup}. This allows
 *     fetch subphases that use the hit context to access the preloaded source.
 */
private HitContext prepareNonNestedHitContext(SearchContext context, SearchLookup lookup, FieldsVisitor fieldsVisitor, int docId, Map<String, Set<String>> storedToRequestedFields, LeafReaderContext subReaderContext, CheckedBiConsumer<Integer, FieldsVisitor, IOException> fieldReader) throws IOException {
    int subDocId = docId - subReaderContext.docBase;
    DocumentMapper documentMapper = context.mapperService().documentMapper();
    Text typeText = documentMapper.typeText();
    if (fieldsVisitor == null) {
        SearchHit hit = new SearchHit(docId, null, null, null);
        return new HitContext(hit, subReaderContext, subDocId, lookup.source());
    } else {
        SearchHit hit;
        loadStoredFields(context.mapperService(), fieldReader, fieldsVisitor, subDocId);
        Uid uid = fieldsVisitor.uid();
        if (fieldsVisitor.fields().isEmpty() == false) {
            Map<String, DocumentField> docFields = new HashMap<>();
            Map<String, DocumentField> metaFields = new HashMap<>();
            fillDocAndMetaFields(context, fieldsVisitor, storedToRequestedFields, docFields, metaFields);
            hit = new SearchHit(docId, uid.id(), docFields, metaFields);
        } else {
            hit = new SearchHit(docId, uid.id(), emptyMap(), emptyMap());
        }
        HitContext hitContext = new HitContext(hit, subReaderContext, subDocId, lookup.source());
        if (fieldsVisitor.source() != null) {
            hitContext.sourceLookup().setSource(fieldsVisitor.source());
        }
        return hitContext;
    }
}

Example 17 with DocumentMapper

use of org.opensearch.index.mapper.DocumentMapper in project OpenSearch by opensearch-project.

the class FetchPhase method prepareNestedHitContext.

/**
 * Resets the provided {@link HitContext} with information on the current
 * nested document. This includes the following:
 *   - Adding an initial {@link SearchHit} instance.
 *   - Loading the document source, filtering it based on the nested document ID, then
 *     setting it on {@link SourceLookup}. This allows fetch subphases that use the hit
 *     context to access the preloaded source.
 */
@SuppressWarnings("unchecked")
private HitContext prepareNestedHitContext(SearchContext context, int nestedTopDocId, int rootDocId, Map<String, Set<String>> storedToRequestedFields, LeafReaderContext subReaderContext, CheckedBiConsumer<Integer, FieldsVisitor, IOException> storedFieldReader) throws IOException {
    // Also if highlighting is requested on nested documents we need to fetch the _source from the root document,
    // otherwise highlighting will attempt to fetch the _source from the nested doc, which will fail,
    // because the entire _source is only stored with the root document.
    boolean needSource = sourceRequired(context) || context.highlight() != null;
    Uid rootId;
    Map<String, Object> rootSourceAsMap = null;
    XContentType rootSourceContentType = null;
    int nestedDocId = nestedTopDocId - subReaderContext.docBase;
    if (context instanceof InnerHitsContext.InnerHitSubContext) {
        InnerHitsContext.InnerHitSubContext innerHitsContext = (InnerHitsContext.InnerHitSubContext) context;
        rootId = innerHitsContext.getRootId();
        if (needSource) {
            SourceLookup rootLookup = innerHitsContext.getRootLookup();
            rootSourceAsMap = rootLookup.loadSourceIfNeeded();
            rootSourceContentType = rootLookup.sourceContentType();
        }
    } else {
        FieldsVisitor rootFieldsVisitor = new FieldsVisitor(needSource);
        loadStoredFields(context.mapperService(), storedFieldReader, rootFieldsVisitor, rootDocId);
        rootFieldsVisitor.postProcess(context.mapperService());
        rootId = rootFieldsVisitor.uid();
        if (needSource) {
            if (rootFieldsVisitor.source() != null) {
                Tuple<XContentType, Map<String, Object>> tuple = XContentHelper.convertToMap(rootFieldsVisitor.source(), false);
                rootSourceAsMap = tuple.v2();
                rootSourceContentType = tuple.v1();
            } else {
                rootSourceAsMap = Collections.emptyMap();
            }
        }
    }
    Map<String, DocumentField> docFields = emptyMap();
    Map<String, DocumentField> metaFields = emptyMap();
    if (context.hasStoredFields() && !context.storedFieldsContext().fieldNames().isEmpty()) {
        FieldsVisitor nestedFieldsVisitor = new CustomFieldsVisitor(storedToRequestedFields.keySet(), false);
        loadStoredFields(context.mapperService(), storedFieldReader, nestedFieldsVisitor, nestedDocId);
        if (nestedFieldsVisitor.fields().isEmpty() == false) {
            docFields = new HashMap<>();
            metaFields = new HashMap<>();
            fillDocAndMetaFields(context, nestedFieldsVisitor, storedToRequestedFields, docFields, metaFields);
        }
    }
    DocumentMapper documentMapper = context.mapperService().documentMapper();
    ObjectMapper nestedObjectMapper = documentMapper.findNestedObjectMapper(nestedDocId, context, subReaderContext);
    assert nestedObjectMapper != null;
    SearchHit.NestedIdentity nestedIdentity = getInternalNestedIdentity(context, nestedDocId, subReaderContext, context.mapperService(), nestedObjectMapper);
    SearchHit hit = new SearchHit(nestedTopDocId, rootId.id(), nestedIdentity, docFields, metaFields);
    // Use a clean, fresh SourceLookup
    HitContext hitContext = new HitContext(hit, subReaderContext, nestedDocId, new SourceLookup());
    if (rootSourceAsMap != null && rootSourceAsMap.isEmpty() == false) {
        // Isolate the nested json array object that matches with nested hit and wrap it back into the same json
        // structure with the nested json array object being the actual content. The latter is important, so that
        // features like source filtering and highlighting work consistent regardless of whether the field points
        // to a json object array for consistency reasons on how we refer to fields
        Map<String, Object> nestedSourceAsMap = new HashMap<>();
        Map<String, Object> current = nestedSourceAsMap;
        for (SearchHit.NestedIdentity nested = nestedIdentity; nested != null; nested = nested.getChild()) {
            String nestedPath = nested.getField().string();
            current.put(nestedPath, new HashMap<>());
            Object extractedValue = XContentMapValues.extractValue(nestedPath, rootSourceAsMap);
            List<?> nestedParsedSource;
            if (extractedValue instanceof List) {
                // nested field has an array value in the _source
                nestedParsedSource = (List<?>) extractedValue;
            } else if (extractedValue instanceof Map) {
                // nested field has an object value in the _source. This just means the nested field has just one inner object,
                // which is valid, but uncommon.
                nestedParsedSource = Collections.singletonList(extractedValue);
            } else {
                throw new IllegalStateException("extracted source isn't an object or an array");
            }
            if ((nestedParsedSource.get(0) instanceof Map) == false && nestedObjectMapper.parentObjectMapperAreNested(context.mapperService()) == false) {
                // This is why only the first element of nestedParsedSource needs to be checked.
                throw new IllegalArgumentException("Cannot execute inner hits. One or more parent object fields of nested field [" + nestedObjectMapper.name() + "] are not nested. All parent fields need to be nested fields too");
            }
            rootSourceAsMap = (Map<String, Object>) nestedParsedSource.get(nested.getOffset());
            if (nested.getChild() == null) {
                current.put(nestedPath, rootSourceAsMap);
            } else {
                Map<String, Object> next = new HashMap<>();
                current.put(nestedPath, next);
                current = next;
            }
        }
        hitContext.sourceLookup().setSource(nestedSourceAsMap);
        hitContext.sourceLookup().setSourceContentType(rootSourceContentType);
    }
    return hitContext;
}

Example 18 with DocumentMapper

use of org.opensearch.index.mapper.DocumentMapper in project OpenSearch by opensearch-project.

the class IndexShard method get.

public Engine.GetResult get(Engine.Get get) {
    readAllowed();
    DocumentMapper mapper = mapperService.documentMapper();
    if (mapper == null) {
        return GetResult.NOT_EXISTS;
    }
    return getEngine().get(get, this::acquireSearcher);
}

Example 19 with DocumentMapper

use of org.opensearch.index.mapper.DocumentMapper in project OpenSearch by opensearch-project.

the class LeafFieldsLookup method loadFieldData.

private FieldLookup loadFieldData(String name) {
    FieldLookup data = cachedFieldData.get(name);
    if (data == null) {
        MappedFieldType fieldType = mapperService.fieldType(name);
        if (fieldType == null) {
            throw new IllegalArgumentException("No field found for [" + name + "] in mapping");
        }
        data = new FieldLookup(fieldType);
        cachedFieldData.put(name, data);
    }
    if (data.fields() == null) {
        List<Object> values;
        if (TypeFieldMapper.NAME.equals(data.fieldType().name())) {
            TypeFieldMapper.emitTypesDeprecationWarning();
            values = new ArrayList<>(1);
            final DocumentMapper mapper = mapperService.documentMapper();
            if (mapper != null) {
                values.add(mapper.type());
            }
        } else {
            values = new ArrayList<Object>(2);
            SingleFieldsVisitor visitor = new SingleFieldsVisitor(data.fieldType(), values);
            try {
                reader.document(docId, visitor);
            } catch (IOException e) {
                throw new OpenSearchParseException("failed to load field [{}]", e, name);
            }
        }
        data.fields(singletonMap(data.fieldType().name(), values));
    }
    return data;
}

Example 20 with DocumentMapper

use of org.opensearch.index.mapper.DocumentMapper in project OpenSearch by opensearch-project.

the class CompositeAggregatorTests method mapperServiceMock.

@Override
protected MapperService mapperServiceMock() {
    MapperService mapperService = mock(MapperService.class);
    DocumentMapper mapper = mock(DocumentMapper.class);
    when(mapper.typeText()).thenReturn(new Text("_doc"));
    when(mapper.type()).thenReturn("_doc");
    when(mapperService.documentMapper()).thenReturn(mapper);
    return mapperService;
}