com.ebiznext.comet.schema.model.package.scala Maven / Gradle / Ivy
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*
* * Licensed to the Apache Software Foundation (ASF) under one or more
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* * this work for additional information regarding copyright ownership.
* * The ASF licenses this file to You under the Apache License, Version 2.0
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* * 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
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package com.ebiznext.comet.schema
import scala.collection.mutable
package object model {
/**
* Utility to extract duplicates and their number of occurrences
*
* @param values : Liste of strings
* @param errorMessage : Error Message that should contains placeholders for the value(%s) and number of occurrences (%d)
* @return List of tuples contains for ea ch duplicate the number of occurrences
*/
def duplicates(values: List[String], errorMessage: String): Either[List[String], Boolean] = {
val errorList: mutable.MutableList[String] = mutable.MutableList.empty
val duplicates = values.groupBy(identity).mapValues(_.size).filter {
case (key, size) => size > 1
}
duplicates.foreach {
case (key, size) =>
errorList += errorMessage.format(key, size)
}
if (errorList.nonEmpty)
Left(errorList.toList)
else
Right(true)
}
def combine(
errors1: Either[List[String], Boolean],
errors2: Either[List[String], Boolean]*
): Either[List[String], Boolean] = {
val allErrors = errors1 :: List(errors2: _*)
val errors = allErrors.collect {
case Left(err) => err
}.flatten
if (errors.isEmpty) Right(true) else Left(errors)
}
}