/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* Licensed 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 com.linkedin.pinot.core.data.readers;
import com.linkedin.pinot.common.data.Schema;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang.mutable.MutableLong;
public abstract class BaseRecordReader implements RecordReader {
private Map<String, MutableLong> _nullCountMap;
protected BaseRecordReader() {
}
protected void initNullCounters(Schema schema) {
_nullCountMap = new HashMap<String, MutableLong>(schema.getAllFieldSpecs().size());
for (String fieldName : schema.getColumnNames()) {
_nullCountMap.put(fieldName, new MutableLong(0));
}
}
protected void incrementNullCountFor(String fieldName) {
_nullCountMap.get(fieldName).increment();
}
@Override
public Map<String, MutableLong> getNullCountMap() {
return _nullCountMap;
}
}