measure/src/main/scala/org/apache/griffin/measure/step/builder/dsl/transform/Expr2DQSteps.scala

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to you under the Apache License, Version 2.0 (the
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  http://www.apache.org/licenses/LICENSE-2.0

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package org.apache.griffin.measure.step.builder.dsl.transform

import org.apache.griffin.measure.Loggable
import org.apache.griffin.measure.configuration.dqdefinition.RuleParam
import org.apache.griffin.measure.configuration.enums._
import org.apache.griffin.measure.context.DQContext
import org.apache.griffin.measure.step.DQStep
import org.apache.griffin.measure.step.builder.dsl.expr.Expr
import org.apache.griffin.measure.step.write.{MetricWriteStep, RecordWriteStep, WriteStep}

trait Expr2DQSteps extends Loggable with Serializable {

  protected val emtptDQSteps = Seq[DQStep]()
  protected val emptyMap = Map[String, Any]()

  def getDQSteps(): Seq[DQStep]
}

/**
  * get dq steps generator for griffin dsl rule
  */
object Expr2DQSteps {
  private val emtptExpr2DQSteps = new Expr2DQSteps {
    def getDQSteps(): Seq[DQStep] = emtptDQSteps
  }

  def apply(context: DQContext,
            expr: Expr,
            ruleParam: RuleParam
           ): Expr2DQSteps = {
    ruleParam.getDqType match {
      case AccuracyType => AccuracyExpr2DQSteps(context, expr, ruleParam)
      case ProfilingType => ProfilingExpr2DQSteps(context, expr, ruleParam)
      case UniquenessType => UniquenessExpr2DQSteps(context, expr, ruleParam)
      case DistinctnessType => DistinctnessExpr2DQSteps(context, expr, ruleParam)
      case TimelinessType => TimelinessExpr2DQSteps(context, expr, ruleParam)
      case CompletenessType => CompletenessExpr2DQSteps(context, expr, ruleParam)
      case _ => emtptExpr2DQSteps
    }
  }
}