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package scala.actors.remote
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)
}
}
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