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case class Parameters(userId: UserId, | |
device: Option[Device] = None, | |
additionalParameters: Map[String, Iterable[String]] = Map.empty) { | |
def getParameter[T](name: String, default: T)(implicit converter: (Iterable[String]) => Option[T]): T = { | |
additionalParameters.get(name).flatMap(converter).getOrElse(default) | |
} | |
} | |
object Parameters { | |
implicit val strings2Int = (values: Iterable[String]) => { | |
import scala.util.control.Exception.catching | |
catching(classOf[NumberFormatException]) opt values.head.trim.toInt | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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case class Parameters(userId: UserId, | |
device: Option[Device] = None, | |
additionalParameters: Map[String, Iterable[String]] = Map.empty) { | |
def getParameter[T](name: String, default: T)(implicit converter: SafeConverter[Iterable[String], T]): T = { | |
additionalParameters.get(name).flatMap(converter.convert).getOrElse(default) | |
} | |
} | |
case class SafeConverter[A, B](val convert: A => Option[B]) extends AnyVal | |
object SafeConverter { | |
implicit val strings2Int = SafeConverter((values: Iterable[String]) => { | |
import scala.util.control.Exception.catching | |
catching(classOf[NumberFormatException]) opt values.head.trim.toInt | |
}) | |
} |
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