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/* NSC -- new Scala compiler
* Copyright 2005-2013 LAMP/EPFL
* @author Paul Phillips
*/
package scala.tools.nsc
package io
import java.io.{ IOException, InputStreamReader, BufferedReader, PrintWriter, Closeable }
import java.io.{ BufferedOutputStream, BufferedReader }
import java.net.{ ServerSocket, SocketException, SocketTimeoutException, InetAddress, Socket => JSocket }
import scala.io.Codec
/** A skeletal only-as-much-as-I-need Socket wrapper.
*/
object Socket {
class Box[+T](f: () => T) {
private def handlerFn[U](f: Throwable => U): PartialFunction[Throwable, U] = {
case x @ (_: IOException | _: SecurityException) => f(x)
}
private val optHandler = handlerFn[Option[T]](_ => None)
private val eitherHandler = handlerFn[Either[Throwable, T]](x => Left(x))
def either: Either[Throwable, T] = try Right(f()) catch eitherHandler
def opt: Option[T] = try Some(f()) catch optHandler
}
def localhost(port: Int) = apply(InetAddress.getLocalHost(), port)
def apply(host: InetAddress, port: Int) = new Box(() => new Socket(new JSocket(host, port)))
def apply(host: String, port: Int) = new Box(() => new Socket(new JSocket(host, port)))
}
class Socket(jsocket: JSocket) extends Streamable.Bytes with Closeable {
def inputStream() = jsocket.getInputStream()
def outputStream() = jsocket.getOutputStream()
def getPort() = jsocket.getPort()
def close() = jsocket.close()
def printWriter() = new PrintWriter(outputStream(), true)
def bufferedReader(implicit codec: Codec) = new BufferedReader(new InputStreamReader(inputStream()))
def bufferedOutput(size: Int) = new BufferedOutputStream(outputStream(), size)
/** Creates an InputStream and applies the closure, automatically closing it on completion.
*/
def applyReaderAndWriter[T](f: (BufferedReader, PrintWriter) => T): T = {
val out = printWriter()
val in = bufferedReader
try f(in, out)
finally {
in.close()
out.close()
}
}
}
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