jaroslav@323: /** jaroslav@323: * Back 2 Browser Bytecode Translator jaroslav@323: * Copyright (C) 2012 Jaroslav Tulach 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@331: import java.io.IOException; 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@348: import java.net.URISyntaxException; jaroslav@323: import java.net.URL; jaroslav@348: import java.util.ArrayList; jaroslav@323: import java.util.Enumeration; jaroslav@348: import java.util.LinkedHashSet; jaroslav@348: import java.util.List; jaroslav@348: import java.util.Set; jaroslav@342: import java.util.concurrent.CountDownLatch; jaroslav@331: import static org.apidesign.bck2brwsr.launcher.Bck2BrwsrLauncher.copyStream; 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@348: private Set loaders = new LinkedHashSet<>(); jaroslav@348: private List methods = new ArrayList<>(); jaroslav@348: jaroslav@348: jaroslav@348: public MethodInvocation addMethod(Class clazz, String method) { jaroslav@348: loaders.add(clazz.getClassLoader()); jaroslav@348: MethodInvocation c = new MethodInvocation(clazz.getName(), method); jaroslav@348: methods.add(c); jaroslav@348: return c; jaroslav@348: } jaroslav@348: jaroslav@348: jaroslav@348: jaroslav@323: public static void main( String[] args ) throws Exception { jaroslav@348: Bck2BrwsrLauncher l = new Bck2BrwsrLauncher(); jaroslav@348: jaroslav@348: final MethodInvocation[] cases = { jaroslav@348: l.addMethod(Console.class, "welcome"), jaroslav@348: l.addMethod(Console.class, "multiply"), jaroslav@342: }; jaroslav@348: jaroslav@348: l.execute(); jaroslav@348: jaroslav@348: for (MethodInvocation c : cases) { jaroslav@348: System.err.println(c.className + "." + c.methodName + " = " + c.result); jaroslav@348: } jaroslav@348: } jaroslav@348: jaroslav@348: jaroslav@348: public void execute() throws URISyntaxException, IOException, InterruptedException { jaroslav@342: final CountDownLatch wait = new CountDownLatch(1); jaroslav@348: final MethodInvocation[] cases = this.methods.toArray(new MethodInvocation[0]); jaroslav@342: jaroslav@323: HttpServer server = HttpServer.createSimpleServer(".", new PortRange(8080, 65535)); jaroslav@348: jaroslav@348: Res resources = new Res(); jaroslav@323: jaroslav@323: final ServerConfiguration conf = server.getServerConfiguration(); jaroslav@332: conf.addHttpHandler(new Page("console.xhtml", jaroslav@332: "org.apidesign.bck2brwsr.launcher.Console", "welcome", "false" jaroslav@332: ), "/console"); jaroslav@348: conf.addHttpHandler(new VM(resources), "/bck2brwsr.js"); jaroslav@332: conf.addHttpHandler(new VMInit(), "/vm.js"); jaroslav@348: conf.addHttpHandler(new Classes(resources), "/classes/"); jaroslav@332: conf.addHttpHandler(new HttpHandler() { jaroslav@332: int cnt; jaroslav@332: @Override jaroslav@332: public void service(Request request, Response response) throws Exception { jaroslav@342: String id = request.getParameter("request"); jaroslav@342: String value = request.getParameter("result"); jaroslav@342: if (id != null && value != null) { jaroslav@342: value = value.replace("%20", " "); jaroslav@342: cases[Integer.parseInt(id)].result = value; jaroslav@342: } jaroslav@342: jaroslav@342: if (cnt >= cases.length) { jaroslav@342: response.getWriter().write(""); jaroslav@342: wait.countDown(); jaroslav@342: cnt = 0; jaroslav@342: return; jaroslav@342: } jaroslav@342: jaroslav@332: response.getWriter().write("{" jaroslav@342: + "className: '" + cases[cnt].className + "', " jaroslav@342: + "methodName: '" + cases[cnt].methodName + "', " jaroslav@332: + "request: " + cnt jaroslav@332: + "}"); jaroslav@342: cnt++; jaroslav@332: } jaroslav@342: }, "/data"); jaroslav@348: conf.addHttpHandler(new Page("harness.xhtml"), "/"); jaroslav@323: jaroslav@323: server.start(); jaroslav@323: NetworkListener listener = server.getListeners().iterator().next(); jaroslav@323: int port = listener.getPort(); jaroslav@323: jaroslav@332: URI uri = new URI("http://localhost:" + port + "/execute"); 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@342: wait.await(); jaroslav@323: } jaroslav@331: jaroslav@342: static void copyStream(InputStream is, OutputStream os, String baseURL, String... params) throws IOException { jaroslav@331: for (;;) { jaroslav@331: int ch = is.read(); jaroslav@331: if (ch == -1) { jaroslav@331: break; jaroslav@331: } jaroslav@331: if (ch == '$') { jaroslav@331: int cnt = is.read() - '0'; jaroslav@342: if (cnt == 'U' - '0') { jaroslav@342: os.write(baseURL.getBytes()); jaroslav@342: } jaroslav@331: if (cnt < params.length) { jaroslav@331: os.write(params[cnt].getBytes()); jaroslav@331: } jaroslav@331: } else { jaroslav@331: os.write(ch); jaroslav@331: } jaroslav@331: } jaroslav@331: } jaroslav@348: jaroslav@348: private class Res implements Bck2Brwsr.Resources { jaroslav@348: @Override jaroslav@348: public InputStream get(String resource) throws IOException { jaroslav@348: for (ClassLoader l : loaders) { jaroslav@348: URL u = null; jaroslav@348: Enumeration en = l.getResources(resource); jaroslav@348: while (en.hasMoreElements()) { jaroslav@348: u = en.nextElement(); jaroslav@348: } jaroslav@348: if (u != null) { jaroslav@348: return u.openStream(); jaroslav@348: } jaroslav@348: } jaroslav@348: throw new IOException("Can't find " + resource); jaroslav@348: } jaroslav@348: } jaroslav@330: jaroslav@332: private static class Page extends HttpHandler { jaroslav@332: private final String resource; jaroslav@331: private final String[] args; jaroslav@331: jaroslav@332: public Page(String resource, String... args) { jaroslav@332: this.resource = resource; jaroslav@331: this.args = args; jaroslav@330: } jaroslav@330: jaroslav@330: @Override jaroslav@330: public void service(Request request, Response response) throws Exception { jaroslav@330: response.setContentType("text/html"); jaroslav@330: OutputStream os = response.getOutputStream(); jaroslav@332: InputStream is = Bck2BrwsrLauncher.class.getResourceAsStream(resource); jaroslav@342: copyStream(is, os, request.getRequestURL().toString(), args); jaroslav@330: } jaroslav@330: } jaroslav@330: jaroslav@330: private static class VM extends HttpHandler { jaroslav@348: private final Res loader; jaroslav@330: jaroslav@348: public VM(Res loader) { jaroslav@330: this.loader = loader; jaroslav@330: } jaroslav@330: jaroslav@330: @Override jaroslav@330: public void service(Request request, Response response) throws Exception { jaroslav@330: response.setCharacterEncoding("UTF-8"); jaroslav@330: response.setContentType("text/javascript"); jaroslav@330: Bck2Brwsr.generate(response.getWriter(), loader); jaroslav@330: } jaroslav@330: } jaroslav@332: private static class VMInit extends HttpHandler { jaroslav@332: public VMInit() { jaroslav@332: } jaroslav@332: jaroslav@332: @Override jaroslav@332: public void service(Request request, Response response) throws Exception { jaroslav@332: response.setCharacterEncoding("UTF-8"); jaroslav@332: response.setContentType("text/javascript"); jaroslav@332: response.getWriter().append( jaroslav@332: "function ldCls(res) {\n" jaroslav@332: + " var request = new XMLHttpRequest();\n" jaroslav@332: + " request.open('GET', 'classes/' + res, false);\n" jaroslav@332: + " request.send();\n" jaroslav@332: + " var arr = eval('(' + request.responseText + ')');\n" jaroslav@332: + " return arr;\n" jaroslav@332: + "}\n" jaroslav@332: + "var vm = new bck2brwsr(ldCls);\n"); jaroslav@332: } jaroslav@332: } jaroslav@330: jaroslav@330: private static class Classes extends HttpHandler { jaroslav@348: private final Res loader; jaroslav@330: jaroslav@348: public Classes(Res loader) { jaroslav@330: this.loader = loader; jaroslav@330: } jaroslav@330: jaroslav@330: @Override jaroslav@330: public void service(Request request, Response response) throws Exception { jaroslav@330: String res = request.getHttpHandlerPath(); jaroslav@330: if (res.startsWith("/")) { jaroslav@330: res = res.substring(1); jaroslav@330: } jaroslav@348: try (InputStream is = loader.get(res)) { jaroslav@348: response.setContentType("text/javascript"); jaroslav@348: Writer w = response.getWriter(); jaroslav@348: w.append("["); jaroslav@348: for (int i = 0;; i++) { jaroslav@348: int b = is.read(); jaroslav@348: if (b == -1) { jaroslav@348: break; jaroslav@348: } jaroslav@348: if (i > 0) { jaroslav@348: w.append(", "); jaroslav@348: } jaroslav@348: if (i % 20 == 0) { jaroslav@348: w.write("\n"); jaroslav@348: } jaroslav@348: if (b > 127) { jaroslav@348: b = b - 256; jaroslav@348: } jaroslav@348: w.append(Integer.toString(b)); jaroslav@348: } jaroslav@348: w.append("\n]"); jaroslav@348: } catch (IOException ex) { jaroslav@348: response.setError(); jaroslav@348: response.setDetailMessage(ex.getMessage()); jaroslav@330: } jaroslav@330: } jaroslav@330: } jaroslav@342: jaroslav@348: public static final class MethodInvocation { jaroslav@342: final String className; jaroslav@342: final String methodName; jaroslav@342: String result; jaroslav@342: jaroslav@348: MethodInvocation(String className, String methodName) { jaroslav@342: this.className = className; jaroslav@342: this.methodName = methodName; jaroslav@342: } jaroslav@348: jaroslav@348: @Override jaroslav@348: public String toString() { jaroslav@348: return result; jaroslav@348: } jaroslav@342: } jaroslav@323: }