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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.spark.sql.hive.thriftserver.server
import java.util.{Map => JMap}
import scala.collection.mutable.Map
import org.apache.hive.service.cli._
import org.apache.hive.service.cli.operation.{ExecuteStatementOperation, Operation, OperationManager}
import org.apache.hive.service.cli.session.HiveSession
import org.apache.spark.internal.Logging
import org.apache.spark.sql.SQLContext
import org.apache.spark.sql.hive.HiveSessionState
import org.apache.spark.sql.hive.thriftserver.{ReflectionUtils, SparkExecuteStatementOperation}
/**
* Executes queries using Spark SQL, and maintains a list of handles to active queries.
*/
private[thriftserver] class SparkSQLOperationManager()
extends OperationManager with Logging {
val handleToOperation = ReflectionUtils
.getSuperField[JMap[OperationHandle, Operation]](this, "handleToOperation")
val sessionToActivePool = Map[SessionHandle, String]()
val sessionToContexts = Map[SessionHandle, SQLContext]()
override def newExecuteStatementOperation(
parentSession: HiveSession,
statement: String,
confOverlay: JMap[String, String],
async: Boolean): ExecuteStatementOperation = synchronized {
val sqlContext = sessionToContexts(parentSession.getSessionHandle)
val sessionState = sqlContext.sessionState.asInstanceOf[HiveSessionState]
val runInBackground = async && sessionState.hiveThriftServerAsync
val operation = new SparkExecuteStatementOperation(parentSession, statement, confOverlay,
runInBackground)(sqlContext, sessionToActivePool)
handleToOperation.put(operation.getHandle, operation)
logDebug(s"Created Operation for $statement with session=$parentSession, " +
s"runInBackground=$runInBackground")
operation
}
}
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