Github user skonto commented on a diff in the pull request: https://github.com/apache/spark/pull/21669#discussion_r199935864 --- Diff: resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/OptionRequirements.scala --- @@ -0,0 +1,40 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.spark.deploy.k8s.features + +private[spark] object OptionRequirements { + + def requireBothOrNeitherDefined( + opt1: Option[_], + opt2: Option[_], + errMessageWhenFirstIsMissing: String, + errMessageWhenSecondIsMissing: String): Unit = { + requireSecondIfFirstIsDefined(opt1, opt2, errMessageWhenSecondIsMissing) + requireSecondIfFirstIsDefined(opt2, opt1, errMessageWhenFirstIsMissing) + } + + def requireSecondIfFirstIsDefined( + opt1: Option[_], opt2: Option[_], errMessageWhenSecondIsMissing: String): Unit = { + opt1.foreach { _ => + require(opt2.isDefined, errMessageWhenSecondIsMissing) + } + } + + def requireNandDefined(opt1: Option[_], opt2: Option[_], errMessage: String): Unit = { --- End diff -- `requireNandDefined` is spelling ok?
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