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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.dinky.shaded.paimon.statistics;

import org.dinky.shaded.paimon.data.serializer.Serializer;
import org.dinky.shaded.paimon.format.FieldStats;

/** The counts stats collector, which will only report null count stats. */
public class CountsFieldStatsCollector extends AbstractFieldStatsCollector {

    @Override
    public void collect(Object field, Serializer serializer) {
        if (field == null) {
            nullCount++;
        }
    }

    @Override
    public FieldStats convert(FieldStats source) {
        return new FieldStats(null, null, source.nullCount());
    }
}