scalaz.http.InputStreamer.scala Maven / Gradle / Ivy
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package scalaz
package http
import java.io.InputStream
import Scalaz._
/**
* Takes an input-stream to an environment for bytes.
*
* @author Tony Morris
*/
sealed trait InputStreamer[I[_]] {
/**
* Transforms the given input-stream to an environment for bytes.
*/
def apply(in: InputStream): I[Byte]
}
/**
* Functions over values that take an input-stream to an environment for bytes.
*
* @author Tony Morris
*/
object InputStreamer {
/**
* Constructs an input-streamer from the given function.
*/
def inputStreamer[I[_]](f: InputStream => I[Byte]) = new InputStreamer[I] {
def apply(in: InputStream) = f(in)
}
/**
* An input-streamer for scala.Stream that reads off the input-stream.
*/
implicit val StreamInputStreamer: InputStreamer[Stream] = inputStreamer[Stream](_.stream)
/**
* An input-streamer for scala.Iterator that reads off the input-stream.
*/
implicit val IteratorInputStreamer: InputStreamer[Iterator] = inputStreamer[Iterator](_.elements)
}