TitleCrawler : Use scala-scraper.

src/main/scala/model/crawler/TitleCrawler.scala

@@ -1,11 +1,24 @@
 package com.voronind.doublegis.test
 package model.crawler
 
+import model.crawler.TitleCrawler.TITLE_UNKNOWN
+
+import net.ruippeixotog.scalascraper.browser.JsoupBrowser
+
 /**
  * A crawler that extracts Http Head Title.
  */
 class TitleCrawler extends Crawler {
 	override def crawl(url: String): String = {
-		"Mock title."
+		try {
+			val browser = JsoupBrowser()
+			val html    = browser.get(url)
+			html.title
+		} catch
+			case e: Exception => TITLE_UNKNOWN
 	}
 }
+
+object TitleCrawler {
+	private val TITLE_UNKNOWN = "Unable to extract the title."
+}

src/main/scala/model/handler/TitleCrawlerHandler.scala

@@ -1,12 +1,12 @@
 package com.voronind.doublegis.test
 package model.handler
 
+import model.crawler.TitleCrawler
 import model.lib.{HttpUtil, StreamUtil}
 
 import com.sun.net.httpserver.{HttpExchange, HttpHandler}
-import com.voronind.doublegis.test.model.crawler.TitleCrawler
 
-import java.io.{BufferedReader, ByteArrayInputStream, InputStream, InputStreamReader}
+import java.io.{BufferedReader, ByteArrayInputStream, InputStreamReader}
 import scala.language.postfixOps
 
 /**
@@ -28,20 +28,20 @@ class TitleCrawlerHandler extends HttpHandler, Handler {
 	// I don't know if this one is ugly, but I wanted to show off a bit.
 	extension (exchange: HttpExchange) private def sendResponse(request: Array[Byte]): Unit = {
 		val reader = new BufferedReader(new InputStreamReader(ByteArrayInputStream(request)))
-
-		val result = Iterator
+		val response = Iterator
 			.continually(reader.readLine)
 			.takeWhile(null !=)
 			.filter(HttpUtil.isUrl)
-			.map({ url => f"$url => ${runCrawler(url)}" })
-			.toList
+			.map({ url => s"$url => ${runCrawler(url)}" })
+			.mkString("\n")
+			.getBytes()
 
-		val response = result.mkString("\n")
-		exchange.sendResponseHeaders(200, response.length())
+		exchange.sendResponseHeaders(200, response.length)
 
-		val out = exchange.getResponseBody
-		out.write(response.getBytes)
-		out.close()
+		val output = exchange.getResponseBody
+
+		StreamUtil.copyStream(new ByteArrayInputStream(response), output)
+		output.close()
 	}
 
 	private def runCrawler(url: String): String = {