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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.fieldvisitor;
import org.apache.lucene.index.FieldInfo;
import org.elasticsearch.index.mapper.MappedFieldType;
import org.elasticsearch.index.mapper.internal.IdFieldMapper;
import org.elasticsearch.index.mapper.internal.TypeFieldMapper;
import org.elasticsearch.index.mapper.internal.UidFieldMapper;
import java.io.IOException;
import java.util.List;
/**
*/
public class SingleFieldsVisitor extends FieldsVisitor {
private String field;
public SingleFieldsVisitor(String field) {
super(false);
this.field = field;
}
@Override
public Status needsField(FieldInfo fieldInfo) throws IOException {
if (fieldInfo.name.equals(field)) {
return Status.YES;
}
if (fieldInfo.name.equals(UidFieldMapper.NAME)) {
if (TypeFieldMapper.NAME.equals(field) || IdFieldMapper.NAME.equals(field)) {
return Status.YES;
}
}
return Status.NO;
}
public void reset(String field) {
this.field = field;
super.reset();
}
public void postProcess(MappedFieldType fieldType) {
if (uid != null) {
// TODO: this switch seems very wrong...either each case should be breaking, or this should not be a switch
switch (field) {
case UidFieldMapper.NAME: addValue(field, uid.toString());
case IdFieldMapper.NAME: addValue(field, uid.id());
case TypeFieldMapper.NAME: addValue(field, uid.type());
}
}
if (fieldsValues == null) {
return;
}
List<Object> fieldValues = fieldsValues.get(fieldType.names().indexName());
if (fieldValues == null) {
return;
}
for (int i = 0; i < fieldValues.size(); i++) {
fieldValues.set(i, fieldType.valueForSearch(fieldValues.get(i)));
}
}
}
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