jaroslav@323: /**
jaroslav@323:  * Back 2 Browser Bytecode Translator
jaroslav@323:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@323:  *
jaroslav@323:  * This program is free software: you can redistribute it and/or modify
jaroslav@323:  * it under the terms of the GNU General Public License as published by
jaroslav@323:  * the Free Software Foundation, version 2 of the License.
jaroslav@323:  *
jaroslav@323:  * This program is distributed in the hope that it will be useful,
jaroslav@323:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@323:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@323:  * GNU General Public License for more details.
jaroslav@323:  *
jaroslav@323:  * You should have received a copy of the GNU General Public License
jaroslav@323:  * along with this program. Look for COPYING file in the top folder.
jaroslav@323:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@323:  */
jaroslav@323: package org.apidesign.bck2brwsr.launcher;
jaroslav@323: 
jaroslav@323: import java.awt.Desktop;
jaroslav@323: import java.io.InputStream;
jaroslav@323: import java.io.OutputStream;
jaroslav@323: import java.io.Writer;
jaroslav@323: import java.net.URI;
jaroslav@323: import java.net.URL;
jaroslav@323: import java.util.Enumeration;
jaroslav@323: import org.apidesign.vm4brwsr.Bck2Brwsr;
jaroslav@323: import org.glassfish.grizzly.PortRange;
jaroslav@323: import org.glassfish.grizzly.http.server.HttpHandler;
jaroslav@323: import org.glassfish.grizzly.http.server.HttpServer;
jaroslav@323: import org.glassfish.grizzly.http.server.NetworkListener;
jaroslav@323: import org.glassfish.grizzly.http.server.Request;
jaroslav@323: import org.glassfish.grizzly.http.server.Response;
jaroslav@323: import org.glassfish.grizzly.http.server.ServerConfiguration;
jaroslav@323: 
jaroslav@323: /**
jaroslav@323:  * Lightweight server to launch Bck2Brwsr applications in real browser.
jaroslav@323:  */
jaroslav@323: public class Bck2BrwsrLauncher {
jaroslav@323:     public static void main( String[] args ) throws Exception {
jaroslav@323:         HttpServer server = HttpServer.createSimpleServer(".", new PortRange(8080, 65535));
jaroslav@323:         final ClassLoader loader = Bck2BrwsrLauncher.class.getClassLoader();
jaroslav@323:         
jaroslav@323:         final ServerConfiguration conf = server.getServerConfiguration();
jaroslav@323:         conf.addHttpHandler(new HttpHandler() {
jaroslav@323:             @Override
jaroslav@323:             public void service(Request request, Response response) throws Exception {
jaroslav@323:                 response.setContentType("text/html");
jaroslav@323:                 OutputStream os = response.getOutputStream();
jaroslav@323:                 InputStream is = Bck2BrwsrLauncher.class.getResourceAsStream("console.xhtml");
jaroslav@323:                 for (;;) {
jaroslav@323:                     int ch = is.read();
jaroslav@323:                     if (ch == -1) {
jaroslav@323:                         break;
jaroslav@323:                     }
jaroslav@323:                     os.write(ch);
jaroslav@323:                 }
jaroslav@323:             }
jaroslav@323:         }, "/console");
jaroslav@323:         conf.addHttpHandler(new HttpHandler() {
jaroslav@323:             @Override
jaroslav@323:             public void service(Request request, Response response) throws Exception {
jaroslav@323:                 response.setCharacterEncoding("UTF-8");
jaroslav@323:                 response.setContentType("text/javascript");
jaroslav@323:                 Bck2Brwsr.generate(response.getWriter(), loader);
jaroslav@323:             }
jaroslav@323:         }, "/bck2brwsr.js");
jaroslav@323:         conf.addHttpHandler(new HttpHandler() {
jaroslav@323:             @Override
jaroslav@323:             public void service(Request request, Response response) throws Exception {
jaroslav@323:                 String res = request.getHttpHandlerPath();
jaroslav@323:                 if (res.startsWith("/")) {
jaroslav@323:                     res = res.substring(1);
jaroslav@323:                 }
jaroslav@323:                 Enumeration<URL> en = loader.getResources(res);
jaroslav@323:                 URL u = null;
jaroslav@323:                 while (en.hasMoreElements()) {
jaroslav@323:                     u = en.nextElement();
jaroslav@323:                 }
jaroslav@323:                 if (u == null) {
jaroslav@323:                     response.setError();
jaroslav@323:                     response.setDetailMessage("Can't find resource " + res);
jaroslav@323:                 }
jaroslav@323:                 response.setContentType("text/javascript");
jaroslav@323:                 InputStream is = u.openStream();
jaroslav@323:                 Writer w = response.getWriter();
jaroslav@323:                 w.append("[");
jaroslav@323:                 for (int i = 0;; i++) {
jaroslav@323:                     int b = is.read();
jaroslav@323:                     if (b == -1) {
jaroslav@323:                         break;
jaroslav@323:                     }
jaroslav@323:                     if (i > 0) {
jaroslav@323:                         w.append(", ");
jaroslav@323:                     }
jaroslav@323:                     if (i % 20 == 0) {
jaroslav@323:                         w.write("\n");
jaroslav@323:                     }
jaroslav@323:                     if (b > 127) {
jaroslav@323:                         b = b - 256;
jaroslav@323:                     }
jaroslav@323:                     w.append(Integer.toString(b));
jaroslav@323:                 }
jaroslav@323:                 w.append("\n]");
jaroslav@323:             }
jaroslav@323:         }, "/classes/");
jaroslav@323:         
jaroslav@323:         server.start();
jaroslav@323:         NetworkListener listener = server.getListeners().iterator().next();
jaroslav@323:         int port = listener.getPort();
jaroslav@323:         
jaroslav@323:         URI uri = new URI("http://localhost:" + port + "/console");
jaroslav@323:         try {
jaroslav@323:             Desktop.getDesktop().browse(uri);
jaroslav@323:         } catch (UnsupportedOperationException ex) {
jaroslav@323:             String[] cmd = { 
jaroslav@323:                 "xdg-open", uri.toString()
jaroslav@323:             };
jaroslav@323:             Runtime.getRuntime().exec(cmd).waitFor();
jaroslav@323:         }
jaroslav@323:         
jaroslav@323:         System.in.read();
jaroslav@323:     }
jaroslav@323: }