org.elasticsearch.index.mapper.MapperService Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch - Open Source, Distributed, RESTful Search Engine
/*
* 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 com.carrotsearch.hppc.ObjectHashSet;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterators;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.DelegatingAnalyzerWrapper;
import org.apache.lucene.index.IndexOptions;
import org.apache.lucene.index.Term;
import org.apache.lucene.queries.TermsQuery;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.ConstantScoreQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.ElasticsearchGenerationException;
import org.elasticsearch.Version;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.lucene.search.Queries;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.index.AbstractIndexComponent;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.analysis.AnalysisService;
import org.elasticsearch.index.mapper.Mapper.BuilderContext;
import org.elasticsearch.index.mapper.internal.TypeFieldMapper;
import org.elasticsearch.index.mapper.object.ObjectMapper;
import org.elasticsearch.index.settings.IndexSettingsService;
import org.elasticsearch.index.similarity.SimilarityLookupService;
import org.elasticsearch.indices.InvalidTypeNameException;
import org.elasticsearch.indices.TypeMissingException;
import org.elasticsearch.indices.mapper.MapperRegistry;
import org.elasticsearch.percolator.PercolatorService;
import org.elasticsearch.script.ScriptService;
import java.io.Closeable;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.HashSet;
import java.util.IdentityHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
import static org.elasticsearch.common.collect.MapBuilder.newMapBuilder;
/**
*
*/
public class MapperService extends AbstractIndexComponent implements Closeable {
/**
* The reason why a mapping is being merged.
*/
public enum MergeReason {
/**
* Create or update a mapping.
*/
MAPPING_UPDATE,
/**
* Recovery of an existing mapping, for instance because of a restart,
* if a shard was moved to a different node or for administrative
* purposes.
*/
MAPPING_RECOVERY;
}
public static final String DEFAULT_MAPPING = "_default_";
public static final String INDEX_MAPPER_DYNAMIC_SETTING = "index.mapper.dynamic";
public static final String INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING = "index.mapping.nested_fields.limit";
public static final boolean INDEX_MAPPER_DYNAMIC_DEFAULT = true;
private static ObjectHashSet META_FIELDS = ObjectHashSet.from(
"_uid", "_id", "_type", "_all", "_parent", "_routing", "_index",
"_size", "_timestamp", "_ttl"
);
private static final Function INDEX_ANALYZER_EXTRACTOR = new Function() {
public Analyzer apply(MappedFieldType fieldType) {
return fieldType.indexAnalyzer();
}
};
private static final Function SEARCH_ANALYZER_EXTRACTOR = new Function() {
public Analyzer apply(MappedFieldType fieldType) {
return fieldType.searchAnalyzer();
}
};
private static final Function SEARCH_QUOTE_ANALYZER_EXTRACTOR = new Function() {
public Analyzer apply(MappedFieldType fieldType) {
return fieldType.searchQuoteAnalyzer();
}
};
private final Settings indexSettings;
private final IndexSettingsService indexSettingsService;
private final AnalysisService analysisService;
/**
* Will create types automatically if they do not exists in the mapping definition yet
*/
private final boolean dynamic;
private volatile String defaultMappingSource;
private volatile String defaultPercolatorMappingSource;
private volatile Map mappers = ImmutableMap.of();
private volatile FieldTypeLookup fieldTypes;
private volatile Map fullPathObjectMappers = new HashMap<>();
private boolean hasNested = false; // updated dynamically to true when a nested object is added
private final DocumentMapperParser documentParser;
private final MapperAnalyzerWrapper indexAnalyzer;
private final MapperAnalyzerWrapper searchAnalyzer;
private final MapperAnalyzerWrapper searchQuoteAnalyzer;
private final List typeListeners = new CopyOnWriteArrayList<>();
private volatile ImmutableMap unmappedFieldTypes = ImmutableMap.of();
private volatile Set parentTypes = ImmutableSet.of();
final MapperRegistry mapperRegistry;
@Inject
public MapperService(Index index, IndexSettingsService indexSettingsService, AnalysisService analysisService,
SimilarityLookupService similarityLookupService,
ScriptService scriptService, MapperRegistry mapperRegistry) {
super(index, indexSettingsService.getSettings());
this.indexSettings = indexSettingsService.getSettings();
this.indexSettingsService = indexSettingsService;
this.analysisService = analysisService;
this.mapperRegistry = mapperRegistry;
this.fieldTypes = new FieldTypeLookup();
this.documentParser = new DocumentMapperParser(indexSettings, this, analysisService, similarityLookupService, scriptService, mapperRegistry);
this.indexAnalyzer = new MapperAnalyzerWrapper(analysisService.defaultIndexAnalyzer(), INDEX_ANALYZER_EXTRACTOR);
this.searchAnalyzer = new MapperAnalyzerWrapper(analysisService.defaultSearchAnalyzer(), SEARCH_ANALYZER_EXTRACTOR);
this.searchQuoteAnalyzer = new MapperAnalyzerWrapper(analysisService.defaultSearchQuoteAnalyzer(), SEARCH_QUOTE_ANALYZER_EXTRACTOR);
this.dynamic = this.indexSettings.getAsBoolean(INDEX_MAPPER_DYNAMIC_SETTING, INDEX_MAPPER_DYNAMIC_DEFAULT);
defaultPercolatorMappingSource = "{\n" +
"\"_default_\":{\n" +
"\"properties\" : {\n" +
"\"query\" : {\n" +
"\"type\" : \"object\",\n" +
"\"enabled\" : false\n" +
"}\n" +
"}\n" +
"}\n" +
"}";
if (index.getName().equals(ScriptService.SCRIPT_INDEX)){
defaultMappingSource = "{" +
"\"_default_\": {" +
"\"properties\": {" +
"\"script\": { \"enabled\": false }," +
"\"template\": { \"enabled\": false }" +
"}" +
"}" +
"}";
} else {
defaultMappingSource = "{\"_default_\":{}}";
}
if (logger.isTraceEnabled()) {
logger.trace("using dynamic[{}], default mapping source[{}], default percolator mapping source[{}]", dynamic, defaultMappingSource, defaultPercolatorMappingSource);
} else if (logger.isDebugEnabled()) {
logger.debug("using dynamic[{}]", dynamic);
}
}
public MapperService(Index index, Settings indexSettings, AnalysisService analysisService,
SimilarityLookupService similarityLookupService,
ScriptService scriptService, MapperRegistry mapperRegistry) {
this(index, new IndexSettingsService(index, indexSettings), analysisService, similarityLookupService, scriptService, mapperRegistry);
}
public void close() {
for (DocumentMapper documentMapper : mappers.values()) {
documentMapper.close();
}
}
public boolean hasNested() {
return this.hasNested;
}
/**
* returns an immutable iterator over current document mappers.
*
* @param includingDefaultMapping indicates whether the iterator should contain the {@link #DEFAULT_MAPPING} document mapper.
* As is this not really an active type, you would typically set this to false
*/
public Iterable docMappers(final boolean includingDefaultMapping) {
return new Iterable() {
@Override
public Iterator iterator() {
final Iterator iterator;
if (includingDefaultMapping) {
iterator = mappers.values().iterator();
} else {
iterator = Iterators.filter(mappers.values().iterator(), NOT_A_DEFAULT_DOC_MAPPER);
}
return Iterators.unmodifiableIterator(iterator);
}
};
}
private static final Predicate NOT_A_DEFAULT_DOC_MAPPER = new Predicate() {
@Override
public boolean apply(DocumentMapper input) {
return !DEFAULT_MAPPING.equals(input.type());
}
};
public AnalysisService analysisService() {
return this.analysisService;
}
public DocumentMapperParser documentMapperParser() {
return this.documentParser;
}
public void addTypeListener(DocumentTypeListener listener) {
typeListeners.add(listener);
}
public void removeTypeListener(DocumentTypeListener listener) {
typeListeners.remove(listener);
}
public static Map parseMapping(String mappingSource) throws Exception {
try (XContentParser parser = XContentFactory.xContent(mappingSource).createParser(mappingSource)) {
return parser.map();
}
}
//TODO: make this atomic
public void merge(Map> mappings, boolean updateAllTypes) throws MapperParsingException {
// first, add the default mapping
if (mappings.containsKey(DEFAULT_MAPPING)) {
try {
this.merge(DEFAULT_MAPPING, new CompressedXContent(XContentFactory.jsonBuilder().map(mappings.get(DEFAULT_MAPPING)).string()), MergeReason.MAPPING_UPDATE, updateAllTypes);
} catch (Exception e) {
throw new MapperParsingException("Failed to parse mapping [{}]: {}", e, DEFAULT_MAPPING, e.getMessage());
}
}
for (Map.Entry> entry : mappings.entrySet()) {
if (entry.getKey().equals(DEFAULT_MAPPING)) {
continue;
}
try {
// apply the default here, its the first time we parse it
this.merge(entry.getKey(), new CompressedXContent(XContentFactory.jsonBuilder().map(entry.getValue()).string()), MergeReason.MAPPING_UPDATE, updateAllTypes);
} catch (Exception e) {
throw new MapperParsingException("Failed to parse mapping [{}]: {}", e, entry.getKey(), e.getMessage());
}
}
}
public DocumentMapper merge(String type, CompressedXContent mappingSource, MergeReason reason, boolean updateAllTypes) {
if (DEFAULT_MAPPING.equals(type)) {
// verify we can parse it
// NOTE: never apply the default here
DocumentMapper mapper = documentParser.parse(type, mappingSource);
// still add it as a document mapper so we have it registered and, for example, persisted back into
// the cluster meta data if needed, or checked for existence
synchronized (this) {
mappers = newMapBuilder(mappers).put(type, mapper).map();
}
try {
defaultMappingSource = mappingSource.string();
} catch (IOException e) {
throw new ElasticsearchGenerationException("failed to un-compress", e);
}
return mapper;
} else {
synchronized (this) {
final boolean applyDefault =
// the default was already applied if we are recovering
reason != MergeReason.MAPPING_RECOVERY
// only apply the default mapping if we don't have the type yet
&& mappers.containsKey(type) == false;
DocumentMapper mergeWith = parse(type, mappingSource, applyDefault);
return merge(mergeWith, reason, updateAllTypes);
}
}
}
private synchronized DocumentMapper merge(DocumentMapper mapper, MergeReason reason, boolean updateAllTypes) {
if (mapper.type().length() == 0) {
throw new InvalidTypeNameException("mapping type name is empty");
}
if (Version.indexCreated(indexSettings).onOrAfter(Version.V_2_0_0_beta1) && mapper.type().length() > 255) {
throw new InvalidTypeNameException("mapping type name [" + mapper.type() + "] is too long; limit is length 255 but was [" + mapper.type().length() + "]");
}
if (mapper.type().charAt(0) == '_') {
throw new InvalidTypeNameException("mapping type name [" + mapper.type() + "] can't start with '_'");
}
if (mapper.type().contains("#")) {
throw new InvalidTypeNameException("mapping type name [" + mapper.type() + "] should not include '#' in it");
}
if (mapper.type().contains(",")) {
throw new InvalidTypeNameException("mapping type name [" + mapper.type() + "] should not include ',' in it");
}
if (Version.indexCreated(indexSettings).onOrAfter(Version.V_2_0_0_beta1) && mapper.type().equals(mapper.parentFieldMapper().type())) {
throw new IllegalArgumentException("The [_parent.type] option can't point to the same type");
}
if (typeNameStartsWithIllegalDot(mapper)) {
if (Version.indexCreated(indexSettings).onOrAfter(Version.V_2_0_0_beta1)) {
throw new IllegalArgumentException("mapping type name [" + mapper.type() + "] must not start with a '.'");
} else {
logger.warn("Type [{}] starts with a '.', it is recommended not to start a type name with a '.'", mapper.type());
}
}
if (reason == MergeReason.MAPPING_UPDATE) {
if (mapper.timestampFieldMapper().enabled()) {
deprecationLogger.deprecated("[_timestamp] will be removed in 5.0. As a replacement, you should explicitly populate a date "
+ "field with the current timestamp in your documents.");
}
if (mapper.TTLFieldMapper().enabled()) {
deprecationLogger.deprecated("[_ttl] will be removed in 5.0. As a replacement, you should use time based indexes or cron "
+ "a delete-by-query with a range query on a timestamp field.");
}
}
// 1. compute the merged DocumentMapper
DocumentMapper oldMapper = mappers.get(mapper.type());
DocumentMapper newMapper;
if (oldMapper != null) {
newMapper = oldMapper.merge(mapper.mapping(), updateAllTypes);
} else {
newMapper = mapper;
}
// 2. check basic sanity of the new mapping
List objectMappers = new ArrayList<>();
List fieldMappers = new ArrayList<>();
Collections.addAll(fieldMappers, newMapper.mapping().metadataMappers);
MapperUtils.collect(newMapper.mapping().root(), objectMappers, fieldMappers);
checkFieldUniqueness(newMapper.type(), objectMappers, fieldMappers);
checkObjectsCompatibility(newMapper.type(), objectMappers, fieldMappers, updateAllTypes);
// 3. update lookup data-structures
// this will in particular make sure that the merged fields are compatible with other types
FieldTypeLookup fieldTypes = this.fieldTypes.copyAndAddAll(newMapper.type(), fieldMappers, updateAllTypes);
boolean hasNested = this.hasNested;
Map fullPathObjectMappers = new HashMap<>(this.fullPathObjectMappers);
for (ObjectMapper objectMapper : objectMappers) {
fullPathObjectMappers.put(objectMapper.fullPath(), objectMapper);
if (objectMapper.nested().isNested()) {
hasNested = true;
}
}
fullPathObjectMappers = Collections.unmodifiableMap(fullPathObjectMappers);
if (reason == MergeReason.MAPPING_UPDATE) {
checkNestedFieldsLimit(fullPathObjectMappers);
}
Set parentTypes = this.parentTypes;
if (oldMapper == null && newMapper.parentFieldMapper().active()) {
parentTypes = new HashSet<>(parentTypes.size() + 1);
parentTypes.addAll(this.parentTypes);
parentTypes.add(mapper.parentFieldMapper().type());
parentTypes = Collections.unmodifiableSet(parentTypes);
}
Map mappers = new HashMap<>(this.mappers);
mappers.put(newMapper.type(), newMapper);
for (Map.Entry entry : mappers.entrySet()) {
if (entry.getKey().equals(DEFAULT_MAPPING)) {
continue;
}
DocumentMapper m = entry.getValue();
// apply changes to the field types back
m = m.updateFieldType(fieldTypes.fullNameToFieldType);
entry.setValue(m);
}
mappers = Collections.unmodifiableMap(mappers);
// 4. commit the change
this.mappers = mappers;
this.fieldTypes = fieldTypes;
this.hasNested = hasNested;
this.fullPathObjectMappers = fullPathObjectMappers;
this.parentTypes = parentTypes;
// 5. send notifications about the change
if (oldMapper == null) {
// means the mapping was created
for (DocumentTypeListener typeListener : typeListeners) {
typeListener.beforeCreate(mapper);
}
}
assert assertSerialization(newMapper);
assert assertMappersShareSameFieldType();
return newMapper;
}
private boolean assertMappersShareSameFieldType() {
for (DocumentMapper mapper : docMappers(false)) {
List fieldMappers = new ArrayList<>();
Collections.addAll(fieldMappers, mapper.mapping().metadataMappers);
MapperUtils.collect(mapper.root(), new ArrayList(), fieldMappers);
for (FieldMapper fieldMapper : fieldMappers) {
assert fieldMapper.fieldType() == fieldTypes.get(fieldMapper.name()) : fieldMapper.name();
}
}
return true;
}
private boolean typeNameStartsWithIllegalDot(DocumentMapper mapper) {
return mapper.type().startsWith(".") && !PercolatorService.TYPE_NAME.equals(mapper.type());
}
private boolean assertSerialization(DocumentMapper mapper) {
// capture the source now, it may change due to concurrent parsing
final CompressedXContent mappingSource = mapper.mappingSource();
DocumentMapper newMapper = parse(mapper.type(), mappingSource, false);
if (newMapper.mappingSource().equals(mappingSource) == false) {
throw new IllegalStateException("DocumentMapper serialization result is different from source. \n--> Source ["
+ mappingSource + "]\n--> Result ["
+ newMapper.mappingSource() + "]");
}
return true;
}
private void checkFieldUniqueness(String type, Collection objectMappers, Collection fieldMappers) {
assert Thread.holdsLock(this);
// first check within mapping
final Set objectFullNames = new HashSet<>();
for (ObjectMapper objectMapper : objectMappers) {
final String fullPath = objectMapper.fullPath();
if (objectFullNames.add(fullPath) == false) {
throw new IllegalArgumentException("Object mapper [" + fullPath + "] is defined twice in mapping for type [" + type + "]");
}
}
{
// Before 3.0 some metadata mappers are also registered under the root object mapper
// So we avoid false positives by deduplicating mappers
// given that we check exact equality, this would still catch the case that a mapper
// is defined under the root object
Collection uniqueFieldMappers = Collections.newSetFromMap(new IdentityHashMap());
uniqueFieldMappers.addAll(fieldMappers);
fieldMappers = uniqueFieldMappers;
}
final Set fieldNames = new HashSet<>();
for (FieldMapper fieldMapper : fieldMappers) {
final String name = fieldMapper.name();
if (objectFullNames.contains(name)) {
throw new IllegalArgumentException("Field [" + name + "] is defined both as an object and a field in [" + type + "]");
} else if (fieldNames.add(name) == false) {
throw new IllegalArgumentException("Field [" + name + "] is defined twice in [" + type + "]");
}
}
// then check other types
for (String fieldName : fieldNames) {
if (fullPathObjectMappers.containsKey(fieldName)) {
throw new IllegalArgumentException("[" + fieldName + "] is defined as a field in mapping [" + type
+ "] but this name is already used for an object in other types");
}
}
for (String objectPath : objectFullNames) {
if (fieldTypes.get(objectPath) != null) {
throw new IllegalArgumentException("[" + objectPath + "] is defined as an object in mapping [" + type
+ "] but this name is already used for a field in other types");
}
}
}
private void checkObjectsCompatibility(String type, Collection objectMappers, Collection fieldMappers, boolean updateAllTypes) {
assert Thread.holdsLock(this);
for (ObjectMapper newObjectMapper : objectMappers) {
ObjectMapper existingObjectMapper = fullPathObjectMappers.get(newObjectMapper.fullPath());
if (existingObjectMapper != null) {
// simulate a merge and ignore the result, we are just interested
// in exceptions here
existingObjectMapper.merge(newObjectMapper, updateAllTypes);
}
}
}
private void checkNestedFieldsLimit(Map fullPathObjectMappers) {
long allowedNestedFields = indexSettingsService.getSettings().getAsLong(INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING, 50L);
long actualNestedFields = 0;
for (ObjectMapper objectMapper : fullPathObjectMappers.values()) {
if (objectMapper.nested().isNested()) {
actualNestedFields++;
}
}
if (allowedNestedFields >= 0 && actualNestedFields > allowedNestedFields) {
throw new IllegalArgumentException("Limit of nested fields [" + allowedNestedFields + "] in index [" + index().name() + "] has been exceeded");
}
}
public DocumentMapper parse(String mappingType, CompressedXContent mappingSource, boolean applyDefault) throws MapperParsingException {
String defaultMappingSource;
if (PercolatorService.TYPE_NAME.equals(mappingType)) {
defaultMappingSource = this.defaultPercolatorMappingSource;
} else {
defaultMappingSource = this.defaultMappingSource;
}
return documentParser.parse(mappingType, mappingSource, applyDefault ? defaultMappingSource : null);
}
public boolean hasMapping(String mappingType) {
return mappers.containsKey(mappingType);
}
/**
* Return the set of concrete types that have a mapping.
* NOTE: this does not return the default mapping.
*/
public Collection types() {
final Set types = new HashSet<>(mappers.keySet());
types.remove(DEFAULT_MAPPING);
return Collections.unmodifiableSet(types);
}
/**
* Return the {@link DocumentMapper} for the given type. By using the special
* {@value #DEFAULT_MAPPING} type, you can get a {@link DocumentMapper} for
* the default mapping.
*/
public DocumentMapper documentMapper(String type) {
return mappers.get(type);
}
/**
* Returns the document mapper created, including a mapping update if the
* type has been dynamically created.
*/
public DocumentMapperForType documentMapperWithAutoCreate(String type) {
DocumentMapper mapper = mappers.get(type);
if (mapper != null) {
return new DocumentMapperForType(mapper, null);
}
if (!dynamic) {
throw new TypeMissingException(index,
new IllegalStateException("trying to auto create mapping, but dynamic mapping is disabled"), type);
}
mapper = parse(type, null, true);
return new DocumentMapperForType(mapper, mapper.mapping());
}
/**
* A filter for search. If a filter is required, will return it, otherwise, will return null.
*/
@Nullable
public Query searchFilter(String... types) {
boolean filterPercolateType = hasMapping(PercolatorService.TYPE_NAME);
if (types != null && filterPercolateType) {
for (String type : types) {
if (PercolatorService.TYPE_NAME.equals(type)) {
filterPercolateType = false;
break;
}
}
}
Query percolatorType = null;
if (filterPercolateType) {
percolatorType = documentMapper(PercolatorService.TYPE_NAME).typeFilter();
}
if (types == null || types.length == 0) {
if (hasNested && filterPercolateType) {
BooleanQuery.Builder bq = new BooleanQuery.Builder();
bq.add(percolatorType, Occur.MUST_NOT);
bq.add(Queries.newNonNestedFilter(), Occur.MUST);
return new ConstantScoreQuery(bq.build());
} else if (hasNested) {
return Queries.newNonNestedFilter();
} else if (filterPercolateType) {
return new ConstantScoreQuery(Queries.not(percolatorType));
} else {
return null;
}
}
// if we filter by types, we don't need to filter by non nested docs
// since they have different types (starting with __)
if (types.length == 1) {
DocumentMapper docMapper = documentMapper(types[0]);
Query filter = docMapper != null ? docMapper.typeFilter() : new TermQuery(new Term(TypeFieldMapper.NAME, types[0]));
if (filterPercolateType) {
BooleanQuery.Builder bq = new BooleanQuery.Builder();
bq.add(percolatorType, Occur.MUST_NOT);
bq.add(filter, Occur.MUST);
return new ConstantScoreQuery(bq.build());
} else {
return filter;
}
}
// see if we can use terms filter
boolean useTermsFilter = true;
for (String type : types) {
DocumentMapper docMapper = documentMapper(type);
if (docMapper == null) {
useTermsFilter = false;
break;
}
if (docMapper.typeMapper().fieldType().indexOptions() == IndexOptions.NONE) {
useTermsFilter = false;
break;
}
}
// We only use terms filter is there is a type filter, this means we don't need to check for hasNested here
if (useTermsFilter) {
BytesRef[] typesBytes = new BytesRef[types.length];
for (int i = 0; i < typesBytes.length; i++) {
typesBytes[i] = new BytesRef(types[i]);
}
TermsQuery termsFilter = new TermsQuery(TypeFieldMapper.NAME, typesBytes);
if (filterPercolateType) {
BooleanQuery.Builder bq = new BooleanQuery.Builder();
bq.add(percolatorType, Occur.MUST_NOT);
bq.add(termsFilter, Occur.MUST);
return new ConstantScoreQuery(bq.build());
} else {
return termsFilter;
}
} else {
BooleanQuery.Builder typesBool = new BooleanQuery.Builder();
for (String type : types) {
DocumentMapper docMapper = documentMapper(type);
if (docMapper == null) {
typesBool.add(new TermQuery(new Term(TypeFieldMapper.NAME, type)), BooleanClause.Occur.SHOULD);
} else {
typesBool.add(docMapper.typeFilter(), BooleanClause.Occur.SHOULD);
}
}
BooleanQuery.Builder bool = new BooleanQuery.Builder();
bool.add(typesBool.build(), Occur.MUST);
if (filterPercolateType) {
bool.add(percolatorType, BooleanClause.Occur.MUST_NOT);
}
if (hasNested) {
bool.add(Queries.newNonNestedFilter(), BooleanClause.Occur.MUST);
}
return new ConstantScoreQuery(bool.build());
}
}
/**
* Returns an {@link MappedFieldType} which has the given index name.
*
* If multiple types have fields with the same index name, the first is returned.
*/
public MappedFieldType indexName(String indexName) {
return fieldTypes.getByIndexName(indexName);
}
/**
* Returns the {@link MappedFieldType} for the give fullName.
*
* If multiple types have fields with the same full name, the first is returned.
*/
public MappedFieldType fullName(String fullName) {
return fieldTypes.get(fullName);
}
/**
* Returns all the fields that match the given pattern. If the pattern is prefixed with a type
* then the fields will be returned with a type prefix.
*/
public Collection simpleMatchToIndexNames(String pattern) {
if (Regex.isSimpleMatchPattern(pattern) == false) {
// no wildcards
return Collections.singletonList(pattern);
}
return fieldTypes.simpleMatchToIndexNames(pattern);
}
// TODO: remove this since the underlying index names are now the same across all types
public Collection simpleMatchToIndexNames(String pattern, @Nullable String[] types) {
return simpleMatchToIndexNames(pattern);
}
// TODO: remove types param, since the object mapper must be the same across all types
public ObjectMapper getObjectMapper(String name, @Nullable String[] types) {
return fullPathObjectMappers.get(name);
}
public MappedFieldType smartNameFieldType(String smartName) {
MappedFieldType fieldType = fullName(smartName);
if (fieldType != null) {
return fieldType;
}
return indexName(smartName);
}
// TODO: remove this since the underlying index names are now the same across all types
public MappedFieldType smartNameFieldType(String smartName, @Nullable String[] types) {
return smartNameFieldType(smartName);
}
/**
* Given a type (eg. long, string, ...), return an anonymous field mapper that can be used for search operations.
*/
public MappedFieldType unmappedFieldType(String type) {
final ImmutableMap unmappedFieldMappers = this.unmappedFieldTypes;
MappedFieldType fieldType = unmappedFieldMappers.get(type);
if (fieldType == null) {
final Mapper.TypeParser.ParserContext parserContext = documentMapperParser().parserContext(type);
Mapper.TypeParser typeParser = parserContext.typeParser(type);
if (typeParser == null) {
throw new IllegalArgumentException("No mapper found for type [" + type + "]");
}
final Mapper.Builder builder = typeParser.parse("__anonymous_" + type, ImmutableMap.of(), parserContext);
final BuilderContext builderContext = new BuilderContext(indexSettings, new ContentPath(1));
fieldType = ((FieldMapper)builder.build(builderContext)).fieldType();
// There is no need to synchronize writes here. In the case of concurrent access, we could just
// compute some mappers several times, which is not a big deal
this.unmappedFieldTypes = ImmutableMap.builder()
.putAll(unmappedFieldMappers)
.put(type, fieldType)
.build();
}
return fieldType;
}
public Analyzer indexAnalyzer() {
return this.indexAnalyzer;
}
public Analyzer searchAnalyzer() {
return this.searchAnalyzer;
}
public Analyzer searchQuoteAnalyzer() {
return this.searchQuoteAnalyzer;
}
/**
* Resolves the closest inherited {@link ObjectMapper} that is nested.
*/
public ObjectMapper resolveClosestNestedObjectMapper(String fieldName) {
int indexOf = fieldName.lastIndexOf('.');
if (indexOf == -1) {
return null;
} else {
do {
String objectPath = fieldName.substring(0, indexOf);
ObjectMapper objectMapper = fullPathObjectMappers.get(objectPath);
if (objectMapper == null) {
indexOf = objectPath.lastIndexOf('.');
continue;
}
if (objectMapper.nested().isNested()) {
return objectMapper;
}
indexOf = objectPath.lastIndexOf('.');
} while (indexOf != -1);
}
return null;
}
public Set getParentTypes() {
return parentTypes;
}
/**
* @return Whether a field is a metadata field.
*/
public static boolean isMetadataField(String fieldName) {
return META_FIELDS.contains(fieldName);
}
public static String[] getAllMetaFields() {
return META_FIELDS.toArray(String.class);
}
/** An analyzer wrapper that can lookup fields within the index mappings */
final class MapperAnalyzerWrapper extends DelegatingAnalyzerWrapper {
private final Analyzer defaultAnalyzer;
private final Function extractAnalyzer;
MapperAnalyzerWrapper(Analyzer defaultAnalyzer, Function extractAnalyzer) {
super(Analyzer.PER_FIELD_REUSE_STRATEGY);
this.defaultAnalyzer = defaultAnalyzer;
this.extractAnalyzer = extractAnalyzer;
}
@Override
protected Analyzer getWrappedAnalyzer(String fieldName) {
MappedFieldType fieldType = smartNameFieldType(fieldName);
if (fieldType != null) {
Analyzer analyzer = extractAnalyzer.apply(fieldType);
if (analyzer != null) {
return analyzer;
}
}
return defaultAnalyzer;
}
}
}