no way to compare when less than two revisions

Differenze

Queste sono le differenze tra la revisione selezionata e la versione attuale della pagina.

@@ Linea 1: / Linea 1: @@
+<code java>
+package nslookup;
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.Executor;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+public class NameServer {
+        public static final int NAMESERVERPORT = 54321;
+        public static final int MAXTHREADS = 4;
+        /**
+         * @param args
+         */
+        public static void main(String[] args) {
+                /** this is the cache, accessed through the host name ... */
+                HashMap<String,InetAddress> uscache = new HashMap<String,InetAddress>();
+                Map cache = Collections.synchronizedMap(uscache);
+                /** this is the thread pool aimed at serving the requests ... */
+                ExecutorService tp = Executors.newFixedThreadPool(MAXTHREADS);
+                /** prepare the server socket to accept request ... */
+                ServerSocket ss = null;
+                try { ss = new ServerSocket(NAMESERVERPORT); } catch(IOException e) {e.printStackTrace(); return;
+}
+                while (true) {  /** main server loop */
+                        System.out.println("NameServer: looping ... ");
+                        Socket s = null;
+                        try { s = ss.accept(); } catch (IOException e) {e.printStackTrace(); return; }
+                        System.out.println("Connessione accettata");
+                        tp.execute(new ServerThread(cache,s));
+                }
+        }
+}
+</code>