scala.actors.remote.Serializer.scala Maven / Gradle / Ivy
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2005-2007, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id: Serializer.scala 10059 2007-02-20 16:37:44Z michelou $
package scala.actors.remote
import java.lang.ClassNotFoundException
import java.io.{DataInputStream, DataOutputStream, EOFException, IOException}
abstract class Serializer(val service: Service) {
def serialize(o: AnyRef): Array[byte]
def deserialize(a: Array[byte]): AnyRef
@throws(classOf[IOException])
def readBytes(inputStream: DataInputStream): Array[byte] = {
try {
val length = inputStream.readInt()
val bytes = new Array[byte](length)
inputStream.readFully(bytes, 0, length)
return bytes
}
catch {
case npe: NullPointerException =>
throw new EOFException("Connection closed.")
}
}
@throws(classOf[IOException]) @throws(classOf[ClassNotFoundException])
def readObject(inputStream: DataInputStream): AnyRef = {
val bytes = readBytes(inputStream)
deserialize(bytes)
}
@throws(classOf[IOException])
def writeBytes(outputStream: DataOutputStream, bytes: Array[byte]): unit = {
val length = bytes.length;
// original length
outputStream.writeInt(length)
outputStream.write(bytes, 0, length)
outputStream.flush()
}
@throws(classOf[IOException])
def writeObject(outputStream: DataOutputStream, obj: AnyRef) = {
val bytes = serialize(obj)
writeBytes(outputStream, bytes)
}
}