Scala example source code file (Client.scala)

This example Scala source code file (Client.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

array, array, bar, client, clienthelper, clienthelper, foo, int, int, server, string, string

The Scala Client.scala source code

/*
 *  @author Stephane Micheloud
 */

import scala.actors.Actor._, ClientHelper._
import scala.actors.remote._, RemoteActor._
import scala.remoting._, Debug._

object Foo {
  def trace(msg: String) { info("[Foo.trace] "+msg)}
}
object Client {
  val yInstVal: Int = 10
  var yInstVar: Int = 99
  object Bar {
    def trace(msg: String) { info("[Bar.trace] "+msg) }
  }
  def main(args: Array[String]) {
    init(args)
    actor {
      val server = select(Node(host, port), 'Server)
      val zLocVal: Int = 1000
      var zLocVar: Int = 9998
      server ! detach(
        (x: Int) => {
          println("yInstVal = "+yInstVal)
          this.trace("yInstVar = "+yInstVar)
          Bar.trace("zLocVal = "+zLocVal)
          Foo.trace("zLocVar = "+zLocVar)
          zLocVar += 2
          System.out.println("zLocVal = "+zLocVal)
          Debug.info("zLocVar = "+zLocVar)
          x + yInstVal + yInstVar + zLocVal + zLocVar
        })
      react {
        case result: Int =>
          println("result received: " + result)
          Predef.exit(0)        
      }
    }
  }
  private def trace(msg: String) { info("[Client.trace] "+msg) }
}

object ClientHelper {
  private var _host = "127.0.0.1"
  private var _port = 8888
  def host = _host
  def port = _port
  def init(args: Array[String]) {
    try { _host = args(0) } catch { case _ => }
    try { _port = args(1).toInt } catch { case _ => }
  }
}