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package cask.model
import java.io.{InputStream, OutputStream, OutputStreamWriter}
import cask.internal.Util
trait Response{
def data: Response.Data
def statusCode: Int
def headers: Seq[(String, String)]
def cookies: Seq[Cookie]
}
object Response{
def apply(data: Data,
statusCode: Int = 200,
headers: Seq[(String, String)] = Nil,
cookies: Seq[Cookie] = Nil) = Simple(data, statusCode, headers, cookies)
case class Simple(data: Data,
statusCode: Int = 200,
headers: Seq[(String, String)] = Nil,
cookies: Seq[Cookie] = Nil) extends Response
implicit def dataResponse[T](t: T)(implicit c: T => Data) = Response(t)
trait Data{
def write(out: OutputStream): Unit
}
object Data{
implicit class StringData(s: String) extends Data{
def write(out: OutputStream) = out.write(s.getBytes)
}
implicit class BytesData(b: Array[Byte]) extends Data{
def write(out: OutputStream) = out.write(b)
}
implicit class StreamData(b: InputStream) extends Data{
def write(out: OutputStream) = Util.transferTo(b, out)
}
implicit def JsonResponse[T: upickle.default.Writer](t: T) = new Data{
def write(out: OutputStream) = implicitly[upickle.default.Writer[T]].write(
new ujson.BaseRenderer(new OutputStreamWriter(out)),
t
)
}
}
}
case class Redirect(url: String) extends Response{
override def data = ""
override def statusCode = 301
override def headers = Seq("Location" -> url)
override def cookies = Nil
}
case class Abort(code: Int) extends Response {
override def data = ""
override def statusCode = code
override def headers = Nil
override def cookies = Nil
}
case class StaticFile(path: String) extends Response {
val relPath = java.nio.file.Paths.get(path)
val (data0, statusCode0) =
if (java.nio.file.Files.exists(relPath) && java.nio.file.Files.isRegularFile(relPath)){
(java.nio.file.Files.newInputStream(relPath): Response.Data, 200)
}else{
("": Response.Data, 404)
}
override def data = data0
override def statusCode = statusCode0
override def headers = Nil
override def cookies = Nil
}
case class StaticResource(path: String, resourceRoot: ClassLoader) extends Response {
val relPath = java.nio.file.Paths.get(path)
val (data0, statusCode0) = resourceRoot.getResourceAsStream(path) match{
case null => ("": Response.Data, 404)
case res => (res: Response.Data, 200)
}
override def data = data0
override def statusCode = statusCode0
override def headers = Nil
override def cookies = Nil
}
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