added

parameter : port

src/main/java/com/loafle/overflow/Server.java

@@ -57,9 +57,9 @@ public class Server {
         return bos.toByteArray();
     }
 
-    public void start() throws IOException {
+    public void start(int port) throws IOException {
     /* The port on which the server should run */
-        int port = 50052;
+//        int port = 50052;
         server = ServerBuilder.forPort(port)
                 .addService(new ConfigImpl())
                 .addService(new DataImpl())
@@ -209,8 +209,17 @@ public class Server {
      * Main launches the server from the command line.
      */
     public static void main(String[] args) throws IOException, InterruptedException {
+
+        if(args.length <= 0) {
+            System.out.println("Port args");
+            System.out.println("first parameter is Port Number");
+            return;
+        }
+
+        int port = Integer.valueOf(args[0]);
+
         final Server server = new Server();
-        server.start();
+        server.start(port);
         server.blockUntilShutdown();
     }
 }

src/test/java/com/loafle/overflow/ServerTest.java

@@ -39,7 +39,7 @@ public class ServerTest {
     public void setUp() throws Exception {
         server = new Server();
         server.addDelegate(Crawlers.REDIS.name(),new TestCrawlerImpl());
-        server.start();
+        server.start(50052);
     }
 
     @After