[Japi-cvs] SF.net SVN: japi: [54] trunk/src/app/net/sf/japi/net/Forwarder.java

[<chr...@us...>]

Revision: 54
Author:   christianhujer
Date:     2006-04-14 08:36:34 -0700 (Fri, 14 Apr 2006)
ViewCVS:  http://svn.sourceforge.net/japi/?rev=54&view=rev

Log Message:
-----------
Added Socket Forwarder. Primitive, needs refactoring.

Added Paths:
-----------
    trunk/src/app/net/sf/japi/net/Forwarder.java
Added: trunk/src/app/net/sf/japi/net/Forwarder.java
===================================================================
--- trunk/src/app/net/sf/japi/net/Forwarder.java	                        (rev 0)
+++ trunk/src/app/net/sf/japi/net/Forwarder.java	2006-04-14 15:36:34 UTC (rev 54)
@@ -0,0 +1,83 @@
+/*
+ * JAPI - (Yet another (hopefully) useful) Java API
+ *
+ * Copyright (C) 2006 Christian Hujer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+package net.sf.japi.net;
+
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.io.IOException;
+import net.sf.japi.io.Copier;
+
+/** This class forwards incoming TCP connections to another host and port.
+ * @author <a href="mailto:ch...@it...">Christian Hujer</a>
+ */
+public class Forwarder implements Runnable {
+
+    /** Main program.
+     * @param args command line arguments (currently ignored)
+     */
+    public static void main(final String... args) throws IOException {
+        ServerSocket server = null;
+        server = new ServerSocket(Integer.parseInt(args[0]));
+        while (true) {
+            final Socket client = new Socket(args[1], Integer.parseInt(args[2]));
+            new Forwarder(client, server.accept()).start();
+        }
+    }
+
+    /** First socket. */
+    private final Socket s1;
+
+    /** Second socket. */
+    private final Socket s2;
+
+    /** Create a new Forwarder.
+     * @param s1 first socket
+     * @param s2 second socket
+     */
+    public Forwarder(final Socket s1, final Socket s2) {
+        this.s1 = s1;
+        this.s2 = s2;
+    }
+
+    /** Start the forwarder. */
+    public void start() {
+        new Thread(this).start();
+    }
+
+    /** {@inheritDoc} */
+    public void run() {
+        try {
+            final Thread c1 = new Copier(s1.getInputStream(), s2.getOutputStream()).start();
+            final Thread c2 = new Copier(s2.getInputStream(), s1.getOutputStream()).start();
+            c1.join();
+            c2.join();
+        } catch (final InterruptedException ignore) {
+            /* ignore */
+        } catch (final IOException e) {
+            e.printStackTrace();  //TODO
+        } finally {
+            try { s1.close(); } catch (final Exception ignore) { /* ignore */ }
+            try { s2.close(); } catch (final Exception ignore) { /* ignore */ }
+        }
+    }
+
+} // class Forwarder


Property changes on: trunk/src/app/net/sf/japi/net/Forwarder.java
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