Main : Implement basic http server.

src/main/scala/main.scala

@@ -1,6 +1,52 @@
 package com.voronind.doublegis.test
 
-@main
-def main(): Unit = {
-  println("Hello world!")
+import com.sun.net.httpserver.{HttpExchange, HttpHandler, HttpServer}
+
+import java.io.{InputStream, OutputStream}
+import java.net.InetSocketAddress
+import scala.language.postfixOps
+
+@main def main(): Unit = {
+	println("Hello world!")
+	val server = HttpServer.create(new InetSocketAddress(8000), 0)
+	server.createContext("/", new RootHandler())
+	server.setExecutor(null)
+
+	server.start()
+
+	println("Hit any key to exit...")
+	System.in.read()
+	server.stop(0)
+}
+
+class RootHandler extends HttpHandler {
+	def handle(t: HttpExchange): Unit = {
+		displayPayload(t.getRequestBody)
+		sendResponse(t)
+	}
+
+	private def displayPayload(body: InputStream): Unit = {
+		println()
+		println("**** Start ****")
+		println()
+		copyStream(body, System.out)
+		println()
+		println("**** End ****")
+		println()
+	}
+
+	private def copyStream(in: InputStream, out: OutputStream): Unit = {
+		Iterator
+			.continually(in.read)
+			.takeWhile(-1 !=)
+			.foreach(out.write)
+	}
+
+	private def sendResponse(t: HttpExchange): Unit = {
+		val response = "Ack!"
+		t.sendResponseHeaders(200, response.length())
+		val os = t.getResponseBody
+		os.write(response.getBytes)
+		os.close()
+	}
 }