sbtorgpolicies.rules.syntax.scala Maven / Gradle / Ivy
/*
* Copyright 2017-2018 47 Degrees, LLC.
*
* 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 sbtorgpolicies.rules
import cats.syntax.either._
import sbtorgpolicies.exceptions.YamlException
import scala.language.implicitConversions
object syntax {
import net.jcazevedo.moultingyaml._
import sbtorgpolicies.model.YamlFormats._
type YamlResult[T] = Either[YamlException, T]
implicit def yamlStringOpsSyntax(yamlObject: YamlObject): YamlStringOps =
new YamlStringOps(yamlObject)
implicit def resultConversionOpsSyntax(result: YamlResult[Seq[YamlValue]]): YamlResultOps =
new YamlResultOps(result)
final class YamlStringOps(yamlObject: YamlObject) {
def getFieldsEither(fields: String*): YamlResult[Seq[YamlValue]] =
Either
.catchNonFatal(yamlObject.getFields(fields.toList map YamlString: _*))
.leftMap(e => YamlException(s"Error reading fields $fields from yaml", Some(e)))
}
final class YamlResultOps(result: YamlResult[Seq[YamlValue]]) {
def toList: List[String] = mapToString.getOrElse(Nil)
def mapToString: YamlResult[List[String]] =
result.map(_.flatMap(_.convertTo[List[String]]).toList)
}
}