spark SparkOperation 源码

spark SparkOperation 代码

文件路径：/sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkOperation.scala

/*
 * 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

import org.apache.hive.service.cli.{HiveSQLException, OperationState}
import org.apache.hive.service.cli.operation.Operation

import org.apache.spark.SparkContext
import org.apache.spark.internal.Logging
import org.apache.spark.sql.{SparkSession, SQLContext}
import org.apache.spark.sql.catalyst.CurrentUserContext.CURRENT_USER
import org.apache.spark.sql.catalyst.catalog.CatalogTableType
import org.apache.spark.sql.catalyst.catalog.CatalogTableType.{EXTERNAL, MANAGED, VIEW}
import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.util.Utils

/**
 * Utils for Spark operations.
 */
private[hive] trait SparkOperation extends Operation with Logging {

  protected def sqlContext: SQLContext

  protected var statementId = getHandle().getHandleIdentifier().getPublicId().toString()

  protected def cleanup(): Unit = () // noop by default

  abstract override def run(): Unit = {
    withLocalProperties {
      super.run()
    }
  }

  abstract override def close(): Unit = {
    super.close()
    cleanup()
    logInfo(s"Close statement with $statementId")
    HiveThriftServer2.eventManager.onOperationClosed(statementId)
  }

  // Set thread local properties for the execution of the operation.
  // This method should be applied during the execution of the operation, by all the child threads.
  // The original spark context local properties will be restored after the operation.
  //
  // It is used to:
  // - set appropriate SparkSession
  // - set scheduler pool for the operation
  def withLocalProperties[T](f: => T): T = {
    val originalProps = Utils.cloneProperties(sqlContext.sparkContext.getLocalProperties)
    val originalSession = SparkSession.getActiveSession

    try {
      // Set active SparkSession
      SparkSession.setActiveSession(sqlContext.sparkSession)

      // Set scheduler pool
      sqlContext.sparkSession.conf.getOption(SQLConf.THRIFTSERVER_POOL.key) match {
        case Some(pool) =>
          sqlContext.sparkContext.setLocalProperty(SparkContext.SPARK_SCHEDULER_POOL, pool)
        case None =>
      }
      CURRENT_USER.set(getParentSession.getUserName)
      // run the body
      f
    } finally {
      CURRENT_USER.remove()
      // reset local properties, will also reset SPARK_SCHEDULER_POOL
      sqlContext.sparkContext.setLocalProperties(originalProps)

      originalSession match {
        case Some(session) => SparkSession.setActiveSession(session)
        case None => SparkSession.clearActiveSession()
      }
    }
  }

  def tableTypeString(tableType: CatalogTableType): String = tableType match {
    case EXTERNAL | MANAGED => "TABLE"
    case VIEW => "VIEW"
    case t =>
      throw new IllegalArgumentException(s"Unknown table type is found: $t")
  }

  protected def onError(): PartialFunction[Throwable, Unit] = {
    case e: Throwable =>
      logError(s"Error operating $getType with $statementId", e)
      super.setState(OperationState.ERROR)
      HiveThriftServer2.eventManager.onStatementError(
        statementId, e.getMessage, Utils.exceptionString(e))
      e match {
        case _: HiveSQLException => throw e
        case _ => throw HiveThriftServerErrors.hiveOperatingError(getType, e)
      }
  }
}

相关信息

spark 源码目录

相关文章

spark FetchIterator 源码

spark HiveThriftServer2 源码

spark HiveThriftServerErrors 源码

spark ReflectionUtils 源码

spark RowSetUtils 源码

spark SparkExecuteStatementOperation 源码

spark SparkGetCatalogsOperation 源码

spark SparkGetColumnsOperation 源码

spark SparkGetFunctionsOperation 源码

spark SparkGetSchemasOperation 源码