org.apache.druid.sql.SqlToolbox Maven / Gradle / Ivy

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/*
 * 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.druid.sql;

import com.google.common.base.Preconditions;
import org.apache.druid.java.util.emitter.service.ServiceEmitter;
import org.apache.druid.query.DefaultQueryConfig;
import org.apache.druid.server.QueryScheduler;
import org.apache.druid.server.log.RequestLogger;
import org.apache.druid.sql.calcite.planner.PlannerFactory;
import org.apache.druid.sql.calcite.run.SqlEngine;

/**
 * Provides the plan and execution resources to process SQL queries.
 */
public class SqlToolbox
{
  final SqlEngine engine;
  final PlannerFactory plannerFactory;
  final ServiceEmitter emitter;
  final RequestLogger requestLogger;
  final QueryScheduler queryScheduler;
  final DefaultQueryConfig defaultQueryConfig;
  final SqlLifecycleManager sqlLifecycleManager;

  public SqlToolbox(
      final SqlEngine engine,
      final PlannerFactory plannerFactory,
      final ServiceEmitter emitter,
      final RequestLogger requestLogger,
      final QueryScheduler queryScheduler,
      final DefaultQueryConfig defaultQueryConfig,
      final SqlLifecycleManager sqlLifecycleManager
  )
  {
    this.engine = engine;
    this.plannerFactory = plannerFactory;
    this.emitter = emitter;
    this.requestLogger = requestLogger;
    this.queryScheduler = queryScheduler;
    this.defaultQueryConfig = defaultQueryConfig;
    this.sqlLifecycleManager = Preconditions.checkNotNull(sqlLifecycleManager, "sqlLifecycleManager");
  }

  public SqlToolbox withEngine(final SqlEngine engine)
  {
    return new SqlToolbox(
        engine,
        plannerFactory,
        emitter,
        requestLogger,
        queryScheduler,
        defaultQueryConfig,
        sqlLifecycleManager
    );
  }
}