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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.solr.handler.export;
import java.io.IOException;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.NumericDocValues;
import org.apache.solr.common.MapWriter;
import org.apache.solr.search.DocValuesIteratorCache;
class LongFieldWriter extends FieldWriter {
protected final String field;
private final DocValuesIteratorCache.FieldDocValuesSupplier docValuesCache;
public LongFieldWriter(
String field, DocValuesIteratorCache.FieldDocValuesSupplier docValuesCache) {
this.field = field;
this.docValuesCache = docValuesCache;
}
@Override
public boolean write(
SortDoc sortDoc, LeafReaderContext readerContext, MapWriter.EntryWriter ew, int fieldIndex)
throws IOException {
long val;
SortValue sortValue = sortDoc.getSortValue(this.field);
if (sortValue != null) {
if (sortValue.isPresent()) {
val = (long) sortValue.getCurrentValue();
} else { // empty-value
return false;
}
} else {
// field is not part of 'sort' param, but part of 'fl' param
NumericDocValues vals =
docValuesCache.getNumericDocValues(
sortDoc.docId, readerContext.reader(), readerContext.ord);
if (vals != null) {
val = vals.longValue();
} else {
return false;
}
}
doWrite(ew, val);
return true;
}
protected void doWrite(MapWriter.EntryWriter ew, long val) throws IOException {
ew.put(field, val);
}
}