com.nvidia.spark.rapids.GpuGenerateExecMeta.scala Maven / Gradle / Ivy

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The RAPIDS SQL plugin for Apache Spark Base Meta Information

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/*
 * Copyright (c) 2022, NVIDIA CORPORATION.
 *
 * Licensed 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 com.nvidia.spark.rapids

import org.apache.spark.sql.catalyst.expressions.Generator
import org.apache.spark.sql.execution.GenerateExec

class GpuGenerateExecSparkPlanMeta(
    gen: GenerateExec,
    conf: RapidsConf,
    p: Option[RapidsMeta[_, _]],
    r: DataFromReplacementRule) extends SparkPlanMeta[GenerateExec](gen, conf, p, r) {

  override val childExprs: Seq[BaseExprMeta[_]] = {
    (Seq(gen.generator) ++ gen.requiredChildOutput).map(
      GpuOverrides.wrapExpr(_, conf, Some(this)))
  }

  override def tagPlanForGpu(): Unit = {
    if (gen.outer &&
      !childExprs.head.asInstanceOf[GeneratorExprMeta[Generator]].supportOuter) {
      willNotWorkOnGpu(s"outer is not currently supported with ${gen.generator.nodeName}")
    }
  }
}

abstract class GeneratorExprMeta[INPUT <: Generator](
    gen: INPUT,
    conf: RapidsConf,
    p: Option[RapidsMeta[_, _]],
    r: DataFromReplacementRule) extends ExprMeta[INPUT](gen, conf, p, r) {
  /* whether supporting outer generate or not */
  val supportOuter: Boolean = false
}