pinot-core/src/main/java/org/apache/pinot/core/plan/GlobalPlanImplV0.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.pinot.core.plan;

import java.util.concurrent.TimeoutException;
import org.apache.pinot.common.utils.DataTable;
import org.apache.pinot.core.operator.InstanceResponseOperator;
import org.apache.pinot.core.operator.blocks.InstanceResponseBlock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * GlobalPlan for a query applied to all the pruned segments.
 *
 *
 */
public class GlobalPlanImplV0 implements Plan {
  private static final Logger LOGGER = LoggerFactory.getLogger(GlobalPlanImplV0.class);

  private final InstanceResponsePlanNode _instanceResponsePlanNode;

  public GlobalPlanImplV0(InstanceResponsePlanNode instanceResponsePlanNode) {
    _instanceResponsePlanNode = instanceResponsePlanNode;
  }

  @Override
  public PlanNode getPlanNode() {
    return _instanceResponsePlanNode;
  }

  @Override
  public DataTable execute()
      throws TimeoutException {
    long startTime = System.currentTimeMillis();
    InstanceResponseOperator instanceResponseOperator = _instanceResponsePlanNode.run();
    long endTime1 = System.currentTimeMillis();
    LOGGER.debug("InstanceResponsePlanNode.run() took: {}ms", endTime1 - startTime);
    if (endTime1 > _instanceResponsePlanNode._queryContext.getEndTimeMs()) {
      throw new TimeoutException("Query timed out while generating physical execution plan");
    }
    InstanceResponseBlock instanceResponseBlock = instanceResponseOperator.nextBlock();
    long endTime2 = System.currentTimeMillis();
    LOGGER.debug("InstanceResponseOperator.nextBlock() took: {}ms", endTime2 - endTime1);
    return instanceResponseBlock.getInstanceResponseDataTable();
  }
}