io.github.simplifier_ag.scala.spdf.DestinationDocumentLike.scala Maven / Gradle / Ivy
package io.github.simplifier_ag.scala.spdf
import java.io.{OutputStream, File}
import scala.sys.process._
import scala.annotation.implicitNotFound
/**
* Type class that describes the kind of destination type we can write the
* resulting PDF documents to.
*/
@implicitNotFound(msg = "Cannot find DestinationDocumentLike type class for ${A}")
trait DestinationDocumentLike[-A] {
/**
* The destination argument to supply to `wkhtmltopdf`
*/
def commandParameter(destinationDocument: A): String = "-"
/**
* Sink the process output into this document
*/
def sinkTo(destinationDocument: A)(process: ProcessBuilder): ProcessBuilder =
process
}
object DestinationDocumentLike {
implicit object FileDestinationDocument extends DestinationDocumentLike[File] {
override def commandParameter(destinationDocument: File): String =
destinationDocument.getAbsolutePath
}
implicit object OutputStreamDestinationDocument extends DestinationDocumentLike[OutputStream] {
override def sinkTo(destinationDocument: OutputStream)(process: ProcessBuilder) =
process #> destinationDocument
}
}