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/*
* Licensed to ElasticSearch and Shay Banon 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.internal;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.index.FieldInfo.IndexOptions;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.lucene.Lucene;
import org.elasticsearch.common.lucene.all.AllField;
import org.elasticsearch.common.lucene.all.AllTermQuery;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.index.analysis.NamedAnalyzer;
import org.elasticsearch.index.codec.postingsformat.PostingsFormatProvider;
import org.elasticsearch.index.fielddata.FieldDataType;
import org.elasticsearch.index.mapper.*;
import org.elasticsearch.index.mapper.core.AbstractFieldMapper;
import org.elasticsearch.index.query.QueryParseContext;
import org.elasticsearch.index.similarity.SimilarityProvider;
import java.io.IOException;
import java.util.Map;
import static org.elasticsearch.common.xcontent.support.XContentMapValues.nodeBooleanValue;
import static org.elasticsearch.index.mapper.MapperBuilders.all;
import static org.elasticsearch.index.mapper.core.TypeParsers.parseField;
/**
*
*/
public class AllFieldMapper extends AbstractFieldMapper implements InternalMapper, RootMapper {
public interface IncludeInAll extends Mapper {
void includeInAll(Boolean includeInAll);
void includeInAllIfNotSet(Boolean includeInAll);
}
public static final String NAME = "_all";
public static final String CONTENT_TYPE = "_all";
public static class Defaults extends AbstractFieldMapper.Defaults {
public static final String NAME = AllFieldMapper.NAME;
public static final String INDEX_NAME = AllFieldMapper.NAME;
public static final boolean ENABLED = true;
public static final FieldType FIELD_TYPE = new FieldType();
static {
FIELD_TYPE.setIndexed(true);
FIELD_TYPE.setTokenized(true);
FIELD_TYPE.freeze();
}
}
public static class Builder extends AbstractFieldMapper.Builder {
private boolean enabled = Defaults.ENABLED;
// an internal flag, automatically set if we encounter boosting
boolean autoBoost = false;
public Builder() {
super(Defaults.NAME, new FieldType(Defaults.FIELD_TYPE));
builder = this;
indexName = Defaults.INDEX_NAME;
}
public Builder enabled(boolean enabled) {
this.enabled = enabled;
return this;
}
@Override
public AllFieldMapper build(BuilderContext context) {
// In case the mapping overrides these
fieldType.setIndexed(true);
fieldType.setTokenized(true);
return new AllFieldMapper(name, fieldType, indexAnalyzer, searchAnalyzer, enabled, autoBoost, provider, similarity, fieldDataSettings);
}
}
public static class TypeParser implements Mapper.TypeParser {
@Override
public Mapper.Builder parse(String name, Map node, ParserContext parserContext) throws MapperParsingException {
AllFieldMapper.Builder builder = all();
parseField(builder, builder.name, node, parserContext);
for (Map.Entry entry : node.entrySet()) {
String fieldName = Strings.toUnderscoreCase(entry.getKey());
Object fieldNode = entry.getValue();
if (fieldName.equals("enabled")) {
builder.enabled(nodeBooleanValue(fieldNode));
} else if (fieldName.equals("auto_boost")) {
builder.autoBoost = nodeBooleanValue(fieldNode);
}
}
return builder;
}
}
private boolean enabled;
// The autoBoost flag is automatically set based on indexed docs on the mappings
// if a doc is indexed with a specific boost value and part of _all, it is automatically
// set to true. This allows to optimize (automatically, which we like) for the common case
// where fields don't usually have boost associated with them, and we don't need to use the
// special SpanTermQuery to look at payloads
private volatile boolean autoBoost;
public AllFieldMapper() {
this(Defaults.NAME, new FieldType(Defaults.FIELD_TYPE), null, null, Defaults.ENABLED, false, null, null, null);
}
protected AllFieldMapper(String name, FieldType fieldType, NamedAnalyzer indexAnalyzer, NamedAnalyzer searchAnalyzer,
boolean enabled, boolean autoBoost, PostingsFormatProvider provider, SimilarityProvider similarity, @Nullable Settings fieldDataSettings) {
super(new Names(name, name, name, name), 1.0f, fieldType, indexAnalyzer, searchAnalyzer, provider, similarity, fieldDataSettings);
this.enabled = enabled;
this.autoBoost = autoBoost;
}
public boolean enabled() {
return this.enabled;
}
@Override
public FieldType defaultFieldType() {
return Defaults.FIELD_TYPE;
}
@Override
public FieldDataType defaultFieldDataType() {
return new FieldDataType("string");
}
@Override
public Query queryStringTermQuery(Term term) {
if (!autoBoost) {
return new TermQuery(term);
}
if (fieldType.indexOptions() == IndexOptions.DOCS_AND_FREQS_AND_POSITIONS) {
return new AllTermQuery(term);
}
return new TermQuery(term);
}
@Override
public Query termQuery(Object value, QueryParseContext context) {
return queryStringTermQuery(names().createIndexNameTerm(indexedValueForSearch(value)));
}
@Override
public void preParse(ParseContext context) throws IOException {
}
@Override
public void postParse(ParseContext context) throws IOException {
super.parse(context);
}
@Override
public void parse(ParseContext context) throws IOException {
// we parse in post parse
}
@Override
public void validate(ParseContext context) throws MapperParsingException {
}
@Override
public boolean includeInObject() {
return true;
}
@Override
protected Field parseCreateField(ParseContext context) throws IOException {
if (!enabled) {
return null;
}
// reset the entries
context.allEntries().reset();
// if the autoBoost flag is not set, and we indexed a doc with custom boost, make
// sure to update the flag, and notify mappings on change
if (!autoBoost && context.allEntries().customBoost()) {
autoBoost = true;
context.setMappingsModified();
}
Analyzer analyzer = findAnalyzer(context);
return new AllField(names.indexName(), context.allEntries(), analyzer, fieldType);
}
private Analyzer findAnalyzer(ParseContext context) {
Analyzer analyzer = indexAnalyzer;
if (analyzer == null) {
analyzer = context.analyzer();
if (analyzer == null) {
analyzer = context.docMapper().indexAnalyzer();
if (analyzer == null) {
// This should not happen, should we log warn it?
analyzer = Lucene.STANDARD_ANALYZER;
}
}
}
return analyzer;
}
@Override
public Void value(Object value) {
return null;
}
@Override
public Object valueForSearch(Object value) {
return null;
}
@Override
protected String contentType() {
return CONTENT_TYPE;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
// if all are defaults, no need to write it at all
if (enabled == Defaults.ENABLED && fieldType.stored() == Defaults.FIELD_TYPE.stored() &&
fieldType.storeTermVectors() == Defaults.FIELD_TYPE.storeTermVectors() &&
indexAnalyzer == null && searchAnalyzer == null) {
return builder;
}
builder.startObject(CONTENT_TYPE);
if (enabled != Defaults.ENABLED) {
builder.field("enabled", enabled);
}
if (autoBoost != false) {
builder.field("auto_boost", autoBoost);
}
if (fieldType.stored() != Defaults.FIELD_TYPE.stored()) {
builder.field("store", fieldType.stored());
}
if (fieldType.storeTermVectors() != Defaults.FIELD_TYPE.storeTermVectors()) {
builder.field("store_term_vector", fieldType.storeTermVectors());
}
if (fieldType.storeTermVectorOffsets() != Defaults.FIELD_TYPE.storeTermVectorOffsets()) {
builder.field("store_term_vector_offsets", fieldType.storeTermVectorOffsets());
}
if (fieldType.storeTermVectorPositions() != Defaults.FIELD_TYPE.storeTermVectorPositions()) {
builder.field("store_term_vector_positions", fieldType.storeTermVectorPositions());
}
if (fieldType.storeTermVectorPayloads() != Defaults.FIELD_TYPE.storeTermVectorPayloads()) {
builder.field("store_term_vector_payloads", fieldType.storeTermVectorPayloads());
}
if (indexAnalyzer != null && searchAnalyzer != null && indexAnalyzer.name().equals(searchAnalyzer.name()) && !indexAnalyzer.name().startsWith("_")) {
// same analyzers, output it once
builder.field("analyzer", indexAnalyzer.name());
} else {
if (indexAnalyzer != null && !indexAnalyzer.name().startsWith("_")) {
builder.field("index_analyzer", indexAnalyzer.name());
}
if (searchAnalyzer != null && !searchAnalyzer.name().startsWith("_")) {
builder.field("search_analyzer", searchAnalyzer.name());
}
}
if (similarity() != null) {
builder.field("similarity", similarity().name());
}
builder.endObject();
return builder;
}
@Override
public void merge(Mapper mergeWith, MergeContext mergeContext) throws MergeMappingException {
// do nothing here, no merging, but also no exception
}
}
