Code reduction with Option

after.scala

// candidate.mimeType and candidate.uri are both Options
candidate.mimeType.exists(_.equalsIgnoreCase(MimeTypes.PDF)) ||
candidate.uri.exists(_.getPath.toLowerCase.endsWith(FileExtensions.PDF))

Before.scala

val mimeTypeIsPdf = candidate.mimeType match {
  case None => false
  case Some(candidateMimeType) => candidateMimeType.equalsIgnoreCase(MimeTypes.PDF)
}

val urlHasPdfExtension = candidate.uri match {
  case None => true
  LowerCase().endsWith(FileExtensions.PDF)
}

mimeTypeIsPdf || urlHasPdfExtension