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.core.util;
  
  import org.apache.carbondata.core.constants.CarbonCommonConstants;
  import org.apache.carbondata.core.stats.DriverQueryStatisticsRecorderDummy;
  import org.apache.carbondata.core.stats.DriverQueryStatisticsRecorderImpl;
  import org.apache.carbondata.core.stats.QueryStatisticsRecorder;
  import org.apache.carbondata.core.stats.QueryStatisticsRecorderDummy;
  import org.apache.carbondata.core.stats.QueryStatisticsRecorderImpl;
  
  public class CarbonTimeStatisticsFactory {
    private static String loadStatisticsInstanceType;
    private static LoadStatistics loadStatisticsInstance;
    private static String driverRecorderType;
    private static QueryStatisticsRecorder driverRecorder;
  
    static {
      CarbonTimeStatisticsFactory.updateTimeStatisticsUtilStatus();
      loadStatisticsInstance = genLoadStatisticsInstance();
      driverRecorder = genDriverRecorder();
    }
  
    private static void updateTimeStatisticsUtilStatus() {
      loadStatisticsInstanceType = CarbonProperties.getInstance()
          .getProperty(CarbonCommonConstants.ENABLE_DATA_LOADING_STATISTICS,
              CarbonCommonConstants.ENABLE_DATA_LOADING_STATISTICS_DEFAULT);
      driverRecorderType = CarbonProperties.getInstance()
              .getProperty(CarbonCommonConstants.ENABLE_QUERY_STATISTICS,
                      CarbonCommonConstants.ENABLE_QUERY_STATISTICS_DEFAULT);
    }
  
    private static LoadStatistics genLoadStatisticsInstance() {
      if (loadStatisticsInstanceType.equalsIgnoreCase("true")) {
        return CarbonLoadStatisticsImpl.getInstance();
      } else {
        return CarbonLoadStatisticsDummy.getInstance();
      }
    }
  
    public static LoadStatistics getLoadStatisticsInstance() {
      return loadStatisticsInstance;
    }
  
    private static QueryStatisticsRecorder genDriverRecorder() {
      if (driverRecorderType.equalsIgnoreCase("true")) {
        return DriverQueryStatisticsRecorderImpl.getInstance();
      } else {
        return DriverQueryStatisticsRecorderDummy.getInstance();
      }
    }
  
    public static QueryStatisticsRecorder createDriverRecorder() {
      return driverRecorder;
    }
  
    public static QueryStatisticsRecorder createExecutorRecorder(String queryId) {
      String queryStatisticsRecorderType = CarbonProperties.getInstance()
              .getProperty(CarbonCommonConstants.ENABLE_QUERY_STATISTICS,
                      CarbonCommonConstants.ENABLE_QUERY_STATISTICS_DEFAULT);
      if (queryStatisticsRecorderType.equalsIgnoreCase("true")) {
        return new QueryStatisticsRecorderImpl(queryId);
      } else {
        return new QueryStatisticsRecorderDummy();
      }
    }
  
  }