za.co.absa.enceladus.common.plugin.PostProcessingService.scala Maven / Gradle / Ivy

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/*
 * 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.common.plugin

import com.typesafe.config.Config
import org.apache.log4j.LogManager
import org.apache.spark.sql.{DataFrame, SparkSession}
import za.co.absa.enceladus.plugins.api.postprocessor.PostProcessor
import za.co.absa.enceladus.plugins.builtin.errorsender.params.ErrorSenderPluginParams
import za.co.absa.enceladus.utils.modules.SourcePhase._

case class PostProcessingService private(config: Config, additionalParams: ErrorSenderPluginParams) {

  private val log = LogManager.getLogger(classOf[PostProcessingService])

  log.info(s"PostProcessingService initialized with config=$config and additionalParams=$additionalParams")

  private val postProcessorPluginKey = additionalParams.sourceId match {
    case Standardization => "standardization.plugin.postprocessor"
    case Conformance => "conformance.plugin.postprocessor"
  }

  private val postProcessingPlugins: Seq[PostProcessor] = new PluginLoader[PostProcessor].loadPlugins(config, postProcessorPluginKey)
  /** Called when a dataset is saved. */
  def onSaveOutput(dataFrame: DataFrame)(implicit spark: SparkSession): Unit = {
    postProcessingPlugins.foreach { plugin =>
      plugin.onDataReady(dataFrame, additionalParams.toMap)
    }
  }

}