/**
 * 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.common.metrics;

import com.linkedin.pinot.common.Utils;


/**
* Enumeration containing all the query phases executed by the server.
*
*/
public enum ServerQueryPhase implements AbstractMetrics.QueryPhase {
  REQUEST_DESERIALIZATION,
  TOTAL_QUERY_TIME,
  SEGMENT_PRUNING,
  BUILD_QUERY_PLAN,
  QUERY_PLAN_EXECUTION,
  RESPONSE_SERIALIZATION,
  QUERY_PROCESSING,
  SCHEDULER_WAIT;

  // NOTE: update query.context.TimerContext toString() method if you
  // time more phases of query execution
  private final String queryPhaseName;

  ServerQueryPhase() {
    queryPhaseName = Utils.toCamelCase(name().toLowerCase());
  }

  @Override
  public String getQueryPhaseName() {
    return queryPhaseName;
  }
}