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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.lucene.document.LatLonDocValuesField;
import org.apache.lucene.index.DocValues;
import org.apache.lucene.index.DocValuesType;
import org.apache.lucene.index.FieldInfo;
import org.apache.lucene.index.LeafReader;
import org.apache.lucene.index.LeafReaderContext;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.fielddata.AtomicGeoPointFieldData;
import org.elasticsearch.index.fielddata.IndexFieldData;
import org.elasticsearch.index.fielddata.IndexFieldDataCache;
import org.elasticsearch.index.fielddata.IndexGeoPointFieldData;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.indices.breaker.CircuitBreakerService;
import org.elasticsearch.search.MultiValueMode;
import java.io.IOException;
public abstract class AbstractLatLonPointDVIndexFieldData extends DocValuesIndexFieldData
implements IndexGeoPointFieldData {
AbstractLatLonPointDVIndexFieldData(Index index, String fieldName) {
super(index, fieldName);
}
@Override
public final XFieldComparatorSource comparatorSource(@Nullable Object missingValue, MultiValueMode sortMode,
XFieldComparatorSource.Nested nested) {
throw new IllegalArgumentException("can't sort on geo_point field without using specific sorting feature, like geo_distance");
}
public static class LatLonPointDVIndexFieldData extends AbstractLatLonPointDVIndexFieldData {
public LatLonPointDVIndexFieldData(Index index, String fieldName) {
super(index, fieldName);
}
@Override
public AtomicGeoPointFieldData load(LeafReaderContext context) {
try {
LeafReader reader = context.reader();
FieldInfo info = reader.getFieldInfos().fieldInfo(fieldName);
if (info != null) {
checkCompatible(info);
}
return new LatLonPointDVAtomicFieldData(DocValues.getSortedNumeric(reader, fieldName));
} catch (IOException e) {
throw new IllegalStateException("Cannot load doc values", e);
}
}
@Override
public AtomicGeoPointFieldData loadDirect(LeafReaderContext context) throws Exception {
return load(context);
}
/** helper: checks a fieldinfo and throws exception if its definitely not a LatLonDocValuesField */
static void checkCompatible(FieldInfo fieldInfo) {
// dv properties could be "unset", if you e.g. used only StoredField with this same name in the segment.
if (fieldInfo.getDocValuesType() != DocValuesType.NONE
&& fieldInfo.getDocValuesType() != LatLonDocValuesField.TYPE.docValuesType()) {
throw new IllegalArgumentException("field=\"" + fieldInfo.name + "\" was indexed with docValuesType="
+ fieldInfo.getDocValuesType() + " but this type has docValuesType="
+ LatLonDocValuesField.TYPE.docValuesType() + ", is the field really a LatLonDocValuesField?");
}
}
}
public static class Builder implements IndexFieldData.Builder {
@Override
public IndexFieldData build(IndexSettings indexSettings, MappedFieldType fieldType, IndexFieldDataCache cache,
CircuitBreakerService breakerService, MapperService mapperService) {
// ignore breaker
return new LatLonPointDVIndexFieldData(indexSettings.getIndex(), fieldType.name());
}
}
}