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/*
* 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.fielddata.plain;
import org.apache.logging.log4j.Logger;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomAccessOrds;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.fielddata.IndexFieldData;
import org.elasticsearch.index.fielddata.IndexFieldDataCache;
import org.elasticsearch.index.fielddata.IndexNumericFieldData.NumericType;
import org.elasticsearch.index.fielddata.ScriptDocValues;
import org.elasticsearch.index.mapper.IdFieldMapper;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.index.mapper.UidFieldMapper;
import org.elasticsearch.indices.breaker.CircuitBreakerService;
import java.util.Set;
import java.util.function.Function;
import static java.util.Collections.unmodifiableSet;
import static org.elasticsearch.common.util.set.Sets.newHashSet;
/** {@link IndexFieldData} impl based on Lucene's doc values. Caching is done on the Lucene side. */
public abstract class DocValuesIndexFieldData {
protected final Index index;
protected final String fieldName;
protected final Logger logger;
public DocValuesIndexFieldData(Index index, String fieldName) {
super();
this.index = index;
this.fieldName = fieldName;
this.logger = Loggers.getLogger(getClass());
}
public final String getFieldName() {
return fieldName;
}
public final void clear() {
// can't do
}
public final void clear(IndexReader reader) {
// can't do
}
public final Index index() {
return index;
}
public static class Builder implements IndexFieldData.Builder {
private static final Set<String> BINARY_INDEX_FIELD_NAMES = unmodifiableSet(newHashSet(UidFieldMapper.NAME, IdFieldMapper.NAME));
private NumericType numericType;
private Function<RandomAccessOrds, ScriptDocValues<?>> scriptFunction = AbstractAtomicOrdinalsFieldData.DEFAULT_SCRIPT_FUNCTION;
public Builder numericType(NumericType type) {
this.numericType = type;
return this;
}
public Builder scriptFunction(Function<RandomAccessOrds, ScriptDocValues<?>> scriptFunction) {
this.scriptFunction = scriptFunction;
return this;
}
@Override
public IndexFieldData<?> build(IndexSettings indexSettings, MappedFieldType fieldType, IndexFieldDataCache cache,
CircuitBreakerService breakerService, MapperService mapperService) {
// Ignore Circuit Breaker
final String fieldName = fieldType.name();
if (BINARY_INDEX_FIELD_NAMES.contains(fieldName)) {
assert numericType == null;
return new BinaryDVIndexFieldData(indexSettings.getIndex(), fieldName);
} else if (numericType != null) {
return new SortedNumericDVIndexFieldData(indexSettings.getIndex(), fieldName, numericType);
} else {
return new SortedSetDVOrdinalsIndexFieldData(indexSettings, cache, fieldName, breakerService, scriptFunction);
}
}
}
}
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