za.co.absa.enceladus.conformance.interpreter.rules.ArrayExplodeInterpreter.scala Maven / Gradle / Ivy
/*
* Copyright 2018 ABSA Group Limited
*
* 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 za.co.absa.enceladus.conformance.interpreter.rules
import org.apache.spark.sql.{Dataset, Row, SparkSession}
import za.co.absa.enceladus.conformance.interpreter.{ExplosionState, InterpreterContextArgs}
import za.co.absa.enceladus.dao.MenasDAO
import za.co.absa.enceladus.model.conformanceRule.ConformanceRule
import za.co.absa.enceladus.utils.explode.ExplodeTools
/**
* This conformance interpreter explodes a given array.
*/
class ArrayExplodeInterpreter(columnName: String) extends RuleInterpreter {
override def conformanceRule: Option[ConformanceRule] = None
override def conform(df: Dataset[Row])
(implicit spark: SparkSession, explosionState: ExplosionState, dao: MenasDAO,
progArgs: InterpreterContextArgs): Dataset[Row] = {
val (dfOut, ctx) = ExplodeTools.explodeAllArraysInPath(columnName, df, explosionState.explodeContext)
explosionState.explodeContext = ctx
dfOut
}
}