za.co.absa.standardization.validation.field.NumericFieldValidator.scala Maven / Gradle / Ivy

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Data Standardization library (originally part of the Enceladus project)

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/*
 * Copyright 2021 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.standardization.validation.field

import za.co.absa.standardization.schema.MetadataKeys
import za.co.absa.standardization.types.TypedStructField
import za.co.absa.standardization.types.TypedStructField.NumericTypeStructField
import za.co.absa.standardization.{ValidationError, ValidationIssue}

object NumericFieldValidator extends NumericFieldValidator

class NumericFieldValidator  extends ScalarFieldValidator {
  private def validateNumericTypeStructField(field: NumericTypeStructField[_]): Seq[ValidationIssue] = {
    tryToValidationIssues(field.parser)
  }

  override def validate(field: TypedStructField): Seq[ValidationIssue] = {
    super.validate(field) ++
      checkMetadataKey[String](field, MetadataKeys.Pattern) ++
      checkMetadataKey[Char](field, MetadataKeys.DecimalSeparator) ++
      checkMetadataKey[Char](field, MetadataKeys.MinusSign) ++
      checkMetadataKey[Char](field, MetadataKeys.GroupingSeparator) ++ (
      field match {
        case numericField: NumericTypeStructField[_] => validateNumericTypeStructField(numericField)
        case _ => Seq(ValidationError("NumericFieldValidator can validate only fields of numeric types"))
      })
  }
}