jaroslav@323
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/**
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jaroslav@323
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* Back 2 Browser Bytecode Translator
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* Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. Look for COPYING file in the top folder.
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* If not, see http://opensource.org/licenses/GPL-2.0.
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*/
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package org.apidesign.bck2brwsr.launcher;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InterruptedIOException;
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import java.io.OutputStream;
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import java.io.Writer;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Enumeration;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.TimeUnit;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.apidesign.vm4brwsr.Bck2Brwsr;
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import org.glassfish.grizzly.PortRange;
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import org.glassfish.grizzly.http.server.HttpHandler;
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import org.glassfish.grizzly.http.server.HttpServer;
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import org.glassfish.grizzly.http.server.NetworkListener;
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import org.glassfish.grizzly.http.server.Request;
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import org.glassfish.grizzly.http.server.Response;
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import org.glassfish.grizzly.http.server.ServerConfiguration;
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/**
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* Lightweight server to launch Bck2Brwsr applications and tests.
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* Supports execution in native browser as well as Java's internal
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* execution engine.
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*/
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public class Bck2BrwsrLauncher {
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private static final Logger LOG = Logger.getLogger(Bck2BrwsrLauncher.class.getName());
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private Set<ClassLoader> loaders = new LinkedHashSet<>();
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private BlockingQueue<MethodInvocation> methods = new LinkedBlockingQueue<>();
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private long timeOut;
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private final Res resources = new Res();
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private Object[] brwsr;
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private HttpServer server;
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private CountDownLatch wait;
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public MethodInvocation addMethod(Class<?> clazz, String method) throws IOException {
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loaders.add(clazz.getClassLoader());
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MethodInvocation c = new MethodInvocation(clazz.getName(), method);
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methods.add(c);
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try {
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c.await(timeOut);
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} catch (InterruptedException ex) {
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throw new IOException(ex);
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}
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return c;
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}
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public void setTimeout(long ms) {
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timeOut = ms;
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}
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public void addClassLoader(ClassLoader url) {
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this.loaders.add(url);
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}
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public static void main( String[] args ) throws Exception {
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Bck2BrwsrLauncher l = new Bck2BrwsrLauncher();
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l.addClassLoader(Bck2BrwsrLauncher.class.getClassLoader());
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l.showURL("org/apidesign/bck2brwsr/launcher/console.xhtml");
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System.in.read();
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}
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public void showURL(String startpage) throws URISyntaxException, InterruptedException, IOException {
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if (!startpage.startsWith("/")) {
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startpage = "/" + startpage;
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}
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HttpServer s = initServer();
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s.getServerConfiguration().addHttpHandler(new Page(resources, null), "/");
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launchServerAndBrwsr(s, startpage);
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}
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public void initialize() throws IOException {
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try {
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executeInBrowser();
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} catch (InterruptedException ex) {
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final InterruptedIOException iio = new InterruptedIOException(ex.getMessage());
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iio.initCause(ex);
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throw iio;
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} catch (Exception ex) {
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if (ex instanceof IOException) {
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throw (IOException)ex;
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}
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if (ex instanceof RuntimeException) {
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throw (RuntimeException)ex;
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}
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throw new IOException(ex);
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}
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}
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private HttpServer initServer() {
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HttpServer s = HttpServer.createSimpleServer(".", new PortRange(8080, 65535));
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final ServerConfiguration conf = s.getServerConfiguration();
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conf.addHttpHandler(new Page(resources,
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"org/apidesign/bck2brwsr/launcher/console.xhtml",
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"org.apidesign.bck2brwsr.launcher.Console", "welcome", "false"
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), "/console");
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conf.addHttpHandler(new VM(resources), "/bck2brwsr.js");
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conf.addHttpHandler(new VMInit(), "/vm.js");
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conf.addHttpHandler(new Classes(resources), "/classes/");
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return s;
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}
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private void executeInBrowser() throws InterruptedException, URISyntaxException, IOException {
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jaroslav@371
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wait = new CountDownLatch(1);
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server = initServer();
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ServerConfiguration conf = server.getServerConfiguration();
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conf.addHttpHandler(new Page(resources,
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"org/apidesign/bck2brwsr/launcher/harness.xhtml"
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), "/execute");
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conf.addHttpHandler(new HttpHandler() {
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jaroslav@332
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int cnt;
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jaroslav@371
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List<MethodInvocation> cases = new ArrayList<>();
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jaroslav@332
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@Override
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public void service(Request request, Response response) throws Exception {
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jaroslav@342
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String id = request.getParameter("request");
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jaroslav@342
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String value = request.getParameter("result");
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jaroslav@364
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jaroslav@342
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if (id != null && value != null) {
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LOG.log(Level.INFO, "Received result for case {0} = {1}", new Object[]{id, value});
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value = value.replace("%20", " ");
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jaroslav@371
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cases.get(Integer.parseInt(id)).result(value, null);
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jaroslav@342
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}
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jaroslav@342
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jaroslav@371
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MethodInvocation mi = methods.take();
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jaroslav@371
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if (mi == null) {
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jaroslav@342
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response.getWriter().write("");
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jaroslav@342
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wait.countDown();
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jaroslav@342
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cnt = 0;
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jaroslav@342
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return;
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jaroslav@342
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}
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jaroslav@342
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jaroslav@371
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cases.add(mi);
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jaroslav@371
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final String cn = mi.className;
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jaroslav@371
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final String mn = mi.methodName;
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jaroslav@364
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LOG.log(Level.INFO, "Request for {0} case. Sending {1}.{2}", new Object[]{cnt, cn, mn});
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jaroslav@332
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response.getWriter().write("{"
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jaroslav@364
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+ "className: '" + cn + "', "
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jaroslav@364
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+ "methodName: '" + mn + "', "
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jaroslav@332
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+ "request: " + cnt
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jaroslav@332
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+ "}");
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jaroslav@342
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cnt++;
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jaroslav@332
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}
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jaroslav@342
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}, "/data");
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jaroslav@357
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jaroslav@371
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this.brwsr = launchServerAndBrwsr(server, "/execute");
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jaroslav@371
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}
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jaroslav@371
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jaroslav@371
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public void shutdown() throws InterruptedException, IOException {
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jaroslav@363
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for (;;) {
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jaroslav@371
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int prev = methods.size();
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jaroslav@363
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if (wait.await(timeOut, TimeUnit.MILLISECONDS)) {
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jaroslav@363
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break;
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jaroslav@363
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}
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jaroslav@371
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if (prev == methods.size()) {
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jaroslav@363
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LOG.log(
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jaroslav@363
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Level.WARNING,
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jaroslav@363
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"Timeout and no test has been executed meanwhile (at {0}). Giving up.",
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jaroslav@371
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methods.size()
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jaroslav@363
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);
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jaroslav@363
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break;
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jaroslav@363
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192 |
}
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jaroslav@363
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193 |
LOG.log(Level.INFO,
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jaroslav@363
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"Timeout, but tests got from {0} to {1}. Trying again.",
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jaroslav@371
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new Object[]{prev, methods.size()}
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jaroslav@363
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);
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jaroslav@363
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}
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jaroslav@365
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stopServerAndBrwsr(server, brwsr);
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jaroslav@323
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}
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jaroslav@331
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jaroslav@342
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static void copyStream(InputStream is, OutputStream os, String baseURL, String... params) throws IOException {
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jaroslav@331
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for (;;) {
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jaroslav@331
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int ch = is.read();
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jaroslav@331
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if (ch == -1) {
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jaroslav@331
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break;
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jaroslav@331
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}
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jaroslav@331
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207 |
if (ch == '$') {
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jaroslav@331
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int cnt = is.read() - '0';
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jaroslav@342
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209 |
if (cnt == 'U' - '0') {
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jaroslav@342
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os.write(baseURL.getBytes());
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jaroslav@342
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}
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jaroslav@331
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212 |
if (cnt < params.length) {
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jaroslav@331
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os.write(params[cnt].getBytes());
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jaroslav@331
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}
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jaroslav@331
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} else {
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jaroslav@331
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os.write(ch);
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jaroslav@331
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}
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jaroslav@331
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}
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jaroslav@331
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}
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jaroslav@356
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jaroslav@365
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private Object[] launchServerAndBrwsr(HttpServer server, final String page) throws IOException, URISyntaxException, InterruptedException {
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jaroslav@357
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server.start();
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jaroslav@357
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NetworkListener listener = server.getListeners().iterator().next();
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jaroslav@357
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int port = listener.getPort();
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jaroslav@357
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jaroslav@357
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226 |
URI uri = new URI("http://localhost:" + port + page);
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jaroslav@362
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227 |
LOG.log(Level.INFO, "Showing {0}", uri);
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jaroslav@367
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// try {
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jaroslav@367
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229 |
// Desktop.getDesktop().browse(uri);
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jaroslav@367
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230 |
// return null;
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jaroslav@367
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// } catch (UnsupportedOperationException ex)
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jaroslav@367
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{
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jaroslav@369
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// File dir = File.createTempFile("chrome", ".dir");
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jaroslav@369
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// dir.delete();
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jaroslav@369
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235 |
// dir.mkdirs();
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jaroslav@369
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// String[] cmd = {
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jaroslav@369
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// "google-chrome", "--user-data-dir=" + dir, "--app=" + uri.toString()
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jaroslav@369
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// };
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jaroslav@369
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// LOG.log(Level.INFO, "Launching {0}", Arrays.toString(cmd));
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jaroslav@369
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240 |
// final Process process = Runtime.getRuntime().exec(cmd);
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jaroslav@369
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241 |
// return new Object[] { process, dir };
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jaroslav@369
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242 |
}
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jaroslav@369
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243 |
{
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jaroslav@357
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String[] cmd = {
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jaroslav@369
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"xdg-open", uri.toString()
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jaroslav@357
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};
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jaroslav@362
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247 |
LOG.log(Level.INFO, "Launching {0}", Arrays.toString(cmd));
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jaroslav@361
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248 |
final Process process = Runtime.getRuntime().exec(cmd);
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jaroslav@369
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249 |
return new Object[] { process, null };
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jaroslav@357
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250 |
}
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jaroslav@361
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251 |
}
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jaroslav@361
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252 |
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jaroslav@365
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253 |
private void stopServerAndBrwsr(HttpServer server, Object[] brwsr) throws IOException, InterruptedException {
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jaroslav@365
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254 |
Process process = (Process)brwsr[0];
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jaroslav@365
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255 |
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jaroslav@365
|
256 |
server.stop();
|
jaroslav@365
|
257 |
InputStream stdout = process.getInputStream();
|
jaroslav@365
|
258 |
InputStream stderr = process.getErrorStream();
|
jaroslav@365
|
259 |
drain("StdOut", stdout);
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jaroslav@365
|
260 |
drain("StdErr", stderr);
|
jaroslav@365
|
261 |
process.destroy();
|
jaroslav@365
|
262 |
int res = process.waitFor();
|
jaroslav@365
|
263 |
LOG.log(Level.INFO, "Exit code: {0}", res);
|
jaroslav@365
|
264 |
|
jaroslav@365
|
265 |
deleteTree((File)brwsr[1]);
|
jaroslav@365
|
266 |
}
|
jaroslav@365
|
267 |
|
jaroslav@361
|
268 |
private static void drain(String name, InputStream is) throws IOException {
|
jaroslav@361
|
269 |
int av = is.available();
|
jaroslav@361
|
270 |
if (av > 0) {
|
jaroslav@362
|
271 |
StringBuilder sb = new StringBuilder();
|
jaroslav@362
|
272 |
sb.append("v== ").append(name).append(" ==v\n");
|
jaroslav@361
|
273 |
while (av-- > 0) {
|
jaroslav@362
|
274 |
sb.append((char)is.read());
|
jaroslav@361
|
275 |
}
|
jaroslav@362
|
276 |
sb.append("\n^== ").append(name).append(" ==^");
|
jaroslav@362
|
277 |
LOG.log(Level.INFO, sb.toString());
|
jaroslav@361
|
278 |
}
|
jaroslav@357
|
279 |
}
|
jaroslav@357
|
280 |
|
jaroslav@365
|
281 |
private void deleteTree(File file) {
|
jaroslav@369
|
282 |
if (file == null) {
|
jaroslav@369
|
283 |
return;
|
jaroslav@369
|
284 |
}
|
jaroslav@365
|
285 |
File[] arr = file.listFiles();
|
jaroslav@365
|
286 |
if (arr != null) {
|
jaroslav@365
|
287 |
for (File s : arr) {
|
jaroslav@365
|
288 |
deleteTree(s);
|
jaroslav@365
|
289 |
}
|
jaroslav@365
|
290 |
}
|
jaroslav@365
|
291 |
file.delete();
|
jaroslav@365
|
292 |
}
|
jaroslav@365
|
293 |
|
jaroslav@348
|
294 |
private class Res implements Bck2Brwsr.Resources {
|
jaroslav@348
|
295 |
@Override
|
jaroslav@348
|
296 |
public InputStream get(String resource) throws IOException {
|
jaroslav@348
|
297 |
for (ClassLoader l : loaders) {
|
jaroslav@348
|
298 |
URL u = null;
|
jaroslav@348
|
299 |
Enumeration<URL> en = l.getResources(resource);
|
jaroslav@348
|
300 |
while (en.hasMoreElements()) {
|
jaroslav@348
|
301 |
u = en.nextElement();
|
jaroslav@348
|
302 |
}
|
jaroslav@348
|
303 |
if (u != null) {
|
jaroslav@348
|
304 |
return u.openStream();
|
jaroslav@348
|
305 |
}
|
jaroslav@348
|
306 |
}
|
jaroslav@348
|
307 |
throw new IOException("Can't find " + resource);
|
jaroslav@348
|
308 |
}
|
jaroslav@348
|
309 |
}
|
jaroslav@330
|
310 |
|
jaroslav@332
|
311 |
private static class Page extends HttpHandler {
|
jaroslav@332
|
312 |
private final String resource;
|
jaroslav@331
|
313 |
private final String[] args;
|
jaroslav@357
|
314 |
private final Res res;
|
jaroslav@331
|
315 |
|
jaroslav@357
|
316 |
public Page(Res res, String resource, String... args) {
|
jaroslav@357
|
317 |
this.res = res;
|
jaroslav@332
|
318 |
this.resource = resource;
|
jaroslav@331
|
319 |
this.args = args;
|
jaroslav@330
|
320 |
}
|
jaroslav@330
|
321 |
|
jaroslav@330
|
322 |
@Override
|
jaroslav@330
|
323 |
public void service(Request request, Response response) throws Exception {
|
jaroslav@357
|
324 |
String r = resource;
|
jaroslav@357
|
325 |
if (r == null) {
|
jaroslav@357
|
326 |
r = request.getHttpHandlerPath();
|
jaroslav@357
|
327 |
if (r.startsWith("/")) {
|
jaroslav@357
|
328 |
r = r.substring(1);
|
jaroslav@357
|
329 |
}
|
jaroslav@357
|
330 |
}
|
jaroslav@357
|
331 |
if (r.endsWith(".html") || r.endsWith(".xhtml")) {
|
jaroslav@357
|
332 |
response.setContentType("text/html");
|
jaroslav@357
|
333 |
}
|
jaroslav@330
|
334 |
OutputStream os = response.getOutputStream();
|
jaroslav@357
|
335 |
try (InputStream is = res.get(r)) {
|
jaroslav@357
|
336 |
copyStream(is, os, request.getRequestURL().toString(), args);
|
jaroslav@357
|
337 |
} catch (IOException ex) {
|
jaroslav@357
|
338 |
response.setDetailMessage(ex.getLocalizedMessage());
|
jaroslav@357
|
339 |
response.setError();
|
jaroslav@357
|
340 |
response.setStatus(404);
|
jaroslav@357
|
341 |
}
|
jaroslav@330
|
342 |
}
|
jaroslav@330
|
343 |
}
|
jaroslav@330
|
344 |
|
jaroslav@330
|
345 |
private static class VM extends HttpHandler {
|
jaroslav@348
|
346 |
private final Res loader;
|
jaroslav@330
|
347 |
|
jaroslav@348
|
348 |
public VM(Res loader) {
|
jaroslav@330
|
349 |
this.loader = loader;
|
jaroslav@330
|
350 |
}
|
jaroslav@330
|
351 |
|
jaroslav@330
|
352 |
@Override
|
jaroslav@330
|
353 |
public void service(Request request, Response response) throws Exception {
|
jaroslav@330
|
354 |
response.setCharacterEncoding("UTF-8");
|
jaroslav@330
|
355 |
response.setContentType("text/javascript");
|
jaroslav@330
|
356 |
Bck2Brwsr.generate(response.getWriter(), loader);
|
jaroslav@330
|
357 |
}
|
jaroslav@330
|
358 |
}
|
jaroslav@332
|
359 |
private static class VMInit extends HttpHandler {
|
jaroslav@332
|
360 |
public VMInit() {
|
jaroslav@332
|
361 |
}
|
jaroslav@332
|
362 |
|
jaroslav@332
|
363 |
@Override
|
jaroslav@332
|
364 |
public void service(Request request, Response response) throws Exception {
|
jaroslav@332
|
365 |
response.setCharacterEncoding("UTF-8");
|
jaroslav@332
|
366 |
response.setContentType("text/javascript");
|
jaroslav@332
|
367 |
response.getWriter().append(
|
jaroslav@332
|
368 |
"function ldCls(res) {\n"
|
jaroslav@332
|
369 |
+ " var request = new XMLHttpRequest();\n"
|
jaroslav@357
|
370 |
+ " request.open('GET', '/classes/' + res, false);\n"
|
jaroslav@332
|
371 |
+ " request.send();\n"
|
jaroslav@332
|
372 |
+ " var arr = eval('(' + request.responseText + ')');\n"
|
jaroslav@332
|
373 |
+ " return arr;\n"
|
jaroslav@332
|
374 |
+ "}\n"
|
jaroslav@332
|
375 |
+ "var vm = new bck2brwsr(ldCls);\n");
|
jaroslav@332
|
376 |
}
|
jaroslav@332
|
377 |
}
|
jaroslav@330
|
378 |
|
jaroslav@330
|
379 |
private static class Classes extends HttpHandler {
|
jaroslav@348
|
380 |
private final Res loader;
|
jaroslav@330
|
381 |
|
jaroslav@348
|
382 |
public Classes(Res loader) {
|
jaroslav@330
|
383 |
this.loader = loader;
|
jaroslav@330
|
384 |
}
|
jaroslav@330
|
385 |
|
jaroslav@330
|
386 |
@Override
|
jaroslav@330
|
387 |
public void service(Request request, Response response) throws Exception {
|
jaroslav@330
|
388 |
String res = request.getHttpHandlerPath();
|
jaroslav@330
|
389 |
if (res.startsWith("/")) {
|
jaroslav@330
|
390 |
res = res.substring(1);
|
jaroslav@330
|
391 |
}
|
jaroslav@348
|
392 |
try (InputStream is = loader.get(res)) {
|
jaroslav@348
|
393 |
response.setContentType("text/javascript");
|
jaroslav@348
|
394 |
Writer w = response.getWriter();
|
jaroslav@348
|
395 |
w.append("[");
|
jaroslav@348
|
396 |
for (int i = 0;; i++) {
|
jaroslav@348
|
397 |
int b = is.read();
|
jaroslav@348
|
398 |
if (b == -1) {
|
jaroslav@348
|
399 |
break;
|
jaroslav@348
|
400 |
}
|
jaroslav@348
|
401 |
if (i > 0) {
|
jaroslav@348
|
402 |
w.append(", ");
|
jaroslav@348
|
403 |
}
|
jaroslav@348
|
404 |
if (i % 20 == 0) {
|
jaroslav@348
|
405 |
w.write("\n");
|
jaroslav@348
|
406 |
}
|
jaroslav@348
|
407 |
if (b > 127) {
|
jaroslav@348
|
408 |
b = b - 256;
|
jaroslav@348
|
409 |
}
|
jaroslav@348
|
410 |
w.append(Integer.toString(b));
|
jaroslav@348
|
411 |
}
|
jaroslav@348
|
412 |
w.append("\n]");
|
jaroslav@348
|
413 |
} catch (IOException ex) {
|
jaroslav@348
|
414 |
response.setError();
|
jaroslav@348
|
415 |
response.setDetailMessage(ex.getMessage());
|
jaroslav@330
|
416 |
}
|
jaroslav@330
|
417 |
}
|
jaroslav@330
|
418 |
}
|
jaroslav@323
|
419 |
}
|