submarine-security/spark-security/src/main/scala/org/apache/submarine/spark/security/parser/SubmarineSqlAstBuilder.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
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package org.apache.submarine.spark.security.parser

import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan

import org.apache.submarine.spark.security.command.{CreateRoleCommand, DropRoleCommand, ShowRolesCommand}
import org.apache.submarine.spark.security.parser.SubmarineSqlBaseParser.{CreateRoleContext, DropRoleContext, ShowRolesContext, SingleStatementContext}

class SubmarineSqlAstBuilder extends SubmarineSqlBaseBaseVisitor[AnyRef] {

  override def visitSingleStatement(ctx: SingleStatementContext): LogicalPlan = {
    visit(ctx.statement()).asInstanceOf[LogicalPlan]
  }

  override def visitCreateRole(ctx: CreateRoleContext): AnyRef = {
    CreateRoleCommand(ctx.identifier().getText)
  }

  override def visitDropRole(ctx: DropRoleContext): AnyRef = {
    DropRoleCommand(ctx.identifier().getText)
  }

  override def visitShowRoles(ctx: ShowRolesContext): AnyRef = {
    ShowRolesCommand()
  }
}