From c4b72fdf2718845b80dae8e1cb09dac962c657e7 Mon Sep 17 00:00:00 2001
From: "John Barton (joho)" <jrbarton@gmail.com>
Date: Mon, 3 Jan 2011 18:38:11 +1100
Subject: [PATCH] typing up the more real world actor example

---
 scala/sizer.scala | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 scala/sizer.scala

diff --git a/scala/sizer.scala b/scala/sizer.scala
new file mode 100644
index 0000000..032b523
--- /dev/null
+++ b/scala/sizer.scala
@@ -0,0 +1,44 @@
+import scala.io._
+import scala.actors._
+import Actor._
+
+object PageLoader {
+  def getPageSize(url : String) = Source.fromURL(url).mkString.length
+}
+
+val urls = List("http://twitter.com",
+                "http://amazon.com",
+                "http://themeforest.net")
+
+def timeMethod(method: () => Unit) = {
+  val start = System.nanoTime
+  method()
+  val end = System.nanoTime
+  println("Mthod took " + (end - start)/1000000000.0 + "seconds.")
+}
+
+def getPageSizeSequentially() = {
+  for(url <- urls) {
+    println("Size for " + url + ": " + PageLoader.getPageSize(url))
+  }
+}
+
+def getPageSizeConcurrently() = {
+  val caller = self
+
+  for(url <- urls) {
+    actor { caller ! (url, PageLoader.getPageSize(url)) }
+  }
+
+  for(i <- 1 to urls.size) {
+    receive {
+      case (url, size) => println("Size for " + url + ": " + size)
+    }
+  }
+}
+
+println("Sequential")
+timeMethod { getPageSizeSequentially }
+println("Concurrent")
+timeMethod { getPageSizeConcurrently }
+