core/src/main/java/org/apache/carbondata/core/stats/DriverQueryStatisticsRecorderDummy.java

/*
 * 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.stats;

/**
 * Class will be used to record and log the query statistics
 */
public class DriverQueryStatisticsRecorderDummy implements QueryStatisticsRecorder {

  private DriverQueryStatisticsRecorderDummy() {

  }

  private static DriverQueryStatisticsRecorderDummy carbonLoadStatisticsImplInstance =
      new DriverQueryStatisticsRecorderDummy();

  public static DriverQueryStatisticsRecorderDummy getInstance() {
    return carbonLoadStatisticsImplInstance;
  }

  public void recordStatistics(QueryStatistic statistic) {

  }

  public void logStatistics() {

  }

  public TaskStatistics statisticsForTask(long taskId, long startTime) {
    return null;
  }

  public void logStatisticsForTask(TaskStatistics task) {

  }

  /**
   * Below method will be used to add the statistics
   */
  public synchronized void recordStatisticsForDriver(QueryStatistic statistic, String queryId) {

  }

  /**
   * Below method will be used to show statistic log as table
   */
  public void logStatisticsAsTableDriver() {

  }

}