vikramahuja1001 commented on a change in pull request #4141: URL: https://github.com/apache/carbondata/pull/4141#discussion_r647120455
########## File path: integration/spark/src/main/spark3.1/org/apache/spark/sql/parser/CarbonSparkSqlParser.scala ########## @@ -0,0 +1,154 @@ +/* + * 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.parser + +import scala.collection.mutable + +import org.antlr.v4.runtime.tree.TerminalNode +import org.apache.spark.sql.{CarbonThreadUtil, SparkSession, SparkVersionAdapter} +import org.apache.spark.sql.catalyst.parser.{AbstractSqlParser, SqlBaseParser} +import org.apache.spark.sql.catalyst.parser.SqlBaseParser._ +import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan +import org.apache.spark.sql.execution.{SparkSqlAstBuilder, SparkSqlParser} +import org.apache.spark.sql.internal.{SQLConf, VariableSubstitution} +import org.apache.spark.sql.types.StructField +import org.apache.spark.sql.util.CarbonException +import org.apache.spark.util.CarbonReflectionUtils + +import org.apache.carbondata.common.exceptions.sql.MalformedCarbonCommandException +import org.apache.carbondata.spark.util.CarbonScalaUtil + +/** + * Concrete parser for Spark SQL statements and carbon specific + * statements + */ +class CarbonSparkSqlParser(conf: SQLConf, sparkSession: SparkSession) extends SparkSqlParser { + + val parser = new CarbonSpark2SqlParser + + override val astBuilder = CarbonReflectionUtils.getAstBuilder(conf, parser, sparkSession) + + private val substitutor = new VariableSubstitution + + override def parsePlan(sqlText: String): LogicalPlan = { + CarbonThreadUtil.updateSessionInfoToCurrentThread(sparkSession) + try { + val parsedPlan = super.parsePlan(sqlText) + CarbonScalaUtil.cleanParserThreadLocals + parsedPlan + } catch { + case ce: MalformedCarbonCommandException => + CarbonScalaUtil.cleanParserThreadLocals + throw ce + case ex: Throwable => + try { + parser.parse(sqlText) + } catch { + case mce: MalformedCarbonCommandException => + throw mce + case e: Throwable => + CarbonException.analysisException( + s"""== Parse1 == + |${ex.getMessage} + |== Parse2 == + |${e.getMessage} + """.stripMargin.trim) + } + } + } + + protected override def parse[T](command: String)(toResult: SqlBaseParser => T): T = { + super.parse(substitutor.substitute(command))(toResult) + } +} + +class CarbonHelperSqlAstBuilder(conf: SQLConf, + parser: CarbonSpark2SqlParser, + sparkSession: SparkSession) + extends SparkSqlAstBuilderWrapper(conf) { + /** + * Parse a key-value map from a [[TablePropertyListContext]], assuming all values are specified. + */ + override def visitPropertyKeyValues(ctx: TablePropertyListContext): Map[String, String] = { + val props = visitTablePropertyList(ctx) + CarbonSparkSqlParserUtil.visitPropertyKeyValues(ctx, props) + } + + def getPropertyKeyValues(ctx: TablePropertyListContext): Map[String, String] + = { + Option(ctx).map(visitPropertyKeyValues) + .getOrElse(Map.empty) + } + + def createCarbonTable(createTableTuple: (CreateTableHeaderContext, SkewSpecContext, + BucketSpecContext, PartitionFieldListContext, ColTypeListContext, TablePropertyListContext, + LocationSpecContext, Option[String], TerminalNode, QueryContext, String)): LogicalPlan = { + // val parser = new CarbonSpark2SqlParser Review comment: done -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
