content: /*
   * 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.carbondata.hadoop;
  
  import org.apache.carbondata.core.scan.model.QueryModel;
  import org.apache.carbondata.core.stats.QueryStatistic;
  import org.apache.carbondata.core.stats.QueryStatisticsConstants;
  import org.apache.carbondata.core.stats.QueryStatisticsRecorder;
  
  import org.apache.hadoop.mapreduce.RecordReader;
  
  /**
   * This class will have all the common methods for vector and row based reader
   */
  public abstract class AbstractRecordReader<T> extends RecordReader<Void, T> {
  
    protected int rowCount = 0;
  
    /**
     * This method will log query result count and query time
     */
    public void logStatistics(int recordCount, QueryStatisticsRecorder recorder) {
      // result size
      if (null != recorder) {
        QueryStatistic queryStatistic = new QueryStatistic();
        queryStatistic.addCountStatistic(QueryStatisticsConstants.RESULT_SIZE, recordCount);
        recorder.recordStatistics(queryStatistic);
      }
    }
  
    public abstract QueryModel getQueryModel();
  }
  