integration/spark/src/main/scala/org/apache/spark/sql/hive/CarbonSqlAstBuilder.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
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package org.apache.spark.sql.hive

import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.catalyst.parser.ParserUtils.string
import org.apache.spark.sql.catalyst.parser.SqlBaseParser.{AddTableColumnsContext, CreateHiveTableContext}
import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
import org.apache.spark.sql.execution.SparkSqlAstBuilder
import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.sql.parser.{CarbonHelperSqlAstBuilder, CarbonSpark2SqlParser, CarbonSparkSqlParserUtil}

class CarbonSqlAstBuilder(conf: SQLConf, parser: CarbonSpark2SqlParser, sparkSession: SparkSession)
  extends SparkSqlAstBuilder(conf) with SqlAstBuilderHelper {

  val helper = new CarbonHelperSqlAstBuilder(conf, parser, sparkSession)

  override def visitCreateHiveTable(ctx: CreateHiveTableContext): LogicalPlan = {
    val fileStorage = CarbonSparkSqlParserUtil.getFileStorage(ctx.createFileFormat(0))

    if (fileStorage.equalsIgnoreCase("'carbondata'") ||
        fileStorage.equalsIgnoreCase("carbondata") ||
        fileStorage.equalsIgnoreCase("'carbonfile'") ||
        fileStorage.equalsIgnoreCase("'org.apache.carbondata.format'")) {
      val createTableTuple = (ctx.createTableHeader, ctx.skewSpec(0),
        ctx.bucketSpec(0), ctx.partitionColumns, ctx.columns, ctx.tablePropertyList(0),
        ctx.locationSpec(0), Option(ctx.STRING(0)).map(string), ctx.AS, ctx.query, fileStorage)
      helper.createCarbonTable(createTableTuple)
    } else {
      super.visitCreateHiveTable(ctx)
    }
  }

  override def visitAddTableColumns(ctx: AddTableColumnsContext): LogicalPlan = {
    visitAddTableColumns(parser, ctx)
  }
}