rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java
Hacky way (relies on singleton) to get FX working. Can attach @On(event=CLICK) and show alert in FX WebView now
2 * Back 2 Browser Bytecode Translator
3 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. Look for COPYING file in the top folder.
16 * If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.bck2brwsr.launcher;
20 import java.io.Closeable;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.io.InterruptedIOException;
25 import java.io.OutputStream;
26 import java.io.UnsupportedEncodingException;
27 import java.io.Writer;
29 import java.net.URISyntaxException;
31 import java.util.ArrayList;
32 import java.util.Arrays;
33 import java.util.Enumeration;
34 import java.util.LinkedHashSet;
35 import java.util.List;
37 import java.util.concurrent.BlockingQueue;
38 import java.util.concurrent.CountDownLatch;
39 import java.util.concurrent.LinkedBlockingQueue;
40 import java.util.concurrent.TimeUnit;
41 import java.util.logging.Level;
42 import java.util.logging.Logger;
43 import org.apidesign.bck2brwsr.launcher.InvocationContext.Resource;
44 import org.apidesign.vm4brwsr.Bck2Brwsr;
45 import org.glassfish.grizzly.PortRange;
46 import org.glassfish.grizzly.http.server.HttpHandler;
47 import org.glassfish.grizzly.http.server.HttpServer;
48 import org.glassfish.grizzly.http.server.NetworkListener;
49 import org.glassfish.grizzly.http.server.Request;
50 import org.glassfish.grizzly.http.server.Response;
51 import org.glassfish.grizzly.http.server.ServerConfiguration;
52 import org.glassfish.grizzly.http.util.HttpStatus;
55 * Lightweight server to launch Bck2Brwsr applications and tests.
56 * Supports execution in native browser as well as Java's internal
59 class Bck2BrwsrLauncher extends Launcher implements Closeable {
60 private static final Logger LOG = Logger.getLogger(Bck2BrwsrLauncher.class.getName());
61 private static final InvocationContext END = new InvocationContext(null, null, null);
62 private final Set<ClassLoader> loaders = new LinkedHashSet<>();
63 private final BlockingQueue<InvocationContext> methods = new LinkedBlockingQueue<>();
65 private final Res resources = new Res();
66 private final String cmd;
67 private Object[] brwsr;
68 private HttpServer server;
69 private CountDownLatch wait;
71 public Bck2BrwsrLauncher(String cmd) {
76 InvocationContext runMethod(InvocationContext c) throws IOException {
77 loaders.add(c.clazz.getClassLoader());
81 } catch (InterruptedException ex) {
82 throw new IOException(ex);
87 public void setTimeout(long ms) {
91 public void addClassLoader(ClassLoader url) {
92 this.loaders.add(url);
95 ClassLoader[] loaders() {
96 return loaders.toArray(new ClassLoader[loaders.size()]);
99 public void showURL(String startpage) throws IOException {
100 if (!startpage.startsWith("/")) {
101 startpage = "/" + startpage;
103 HttpServer s = initServer(".", true);
104 int last = startpage.lastIndexOf('/');
105 String simpleName = startpage.substring(last);
106 s.getServerConfiguration().addHttpHandler(new Page(resources, startpage), simpleName);
107 s.getServerConfiguration().addHttpHandler(new Page(resources, null), "/");
109 launchServerAndBrwsr(s, simpleName);
110 } catch (URISyntaxException | InterruptedException ex) {
111 throw new IOException(ex);
115 void showDirectory(File dir, String startpage) throws IOException {
116 if (!startpage.startsWith("/")) {
117 startpage = "/" + startpage;
119 HttpServer s = initServer(dir.getPath(), false);
121 launchServerAndBrwsr(s, startpage);
122 } catch (URISyntaxException | InterruptedException ex) {
123 throw new IOException(ex);
128 public void initialize() throws IOException {
131 } catch (InterruptedException ex) {
132 final InterruptedIOException iio = new InterruptedIOException(ex.getMessage());
135 } catch (Exception ex) {
136 if (ex instanceof IOException) {
137 throw (IOException)ex;
139 if (ex instanceof RuntimeException) {
140 throw (RuntimeException)ex;
142 throw new IOException(ex);
146 private HttpServer initServer(String path, boolean addClasses) throws IOException {
147 HttpServer s = HttpServer.createSimpleServer(path, new PortRange(8080, 65535));
149 final ServerConfiguration conf = s.getServerConfiguration();
151 conf.addHttpHandler(new VM(this, resources), "/bck2brwsr.js");
152 conf.addHttpHandler(new Classes(resources), "/classes/");
157 private void executeInBrowser() throws InterruptedException, URISyntaxException, IOException {
158 wait = new CountDownLatch(1);
159 server = initServer(".", true);
160 final ServerConfiguration conf = server.getServerConfiguration();
162 class DynamicResourceHandler extends HttpHandler {
163 private final InvocationContext ic;
164 public DynamicResourceHandler(InvocationContext ic) {
165 if (ic == null || ic.resources.isEmpty()) {
166 throw new NullPointerException();
169 for (Resource r : ic.resources) {
170 conf.addHttpHandler(this, r.httpPath);
174 public void close() {
175 conf.removeHttpHandler(this);
179 public void service(Request request, Response response) throws Exception {
180 for (Resource r : ic.resources) {
181 if (r.httpPath.equals(request.getRequestURI())) {
182 LOG.log(Level.INFO, "Serving HttpResource for {0}", request.getRequestURI());
183 response.setContentType(r.httpType);
184 copyStream(r.httpContent, response.getOutputStream(), null);
190 conf.addHttpHandler(new Page(resources,
191 "org/apidesign/bck2brwsr/launcher/harness.xhtml"
194 conf.addHttpHandler(new HttpHandler() {
196 List<InvocationContext> cases = new ArrayList<>();
197 DynamicResourceHandler prev;
199 public void service(Request request, Response response) throws Exception {
200 String id = request.getParameter("request");
201 String value = request.getParameter("result");
202 if (value != null && value.indexOf((char)0xC5) != -1) {
203 value = toUTF8(value);
207 InvocationContext mi = null;
210 if (id != null && value != null) {
211 LOG.log(Level.INFO, "Received result for case {0} = {1}", new Object[]{id, value});
212 value = decodeURL(value);
213 int indx = Integer.parseInt(id);
214 cases.get(indx).result(value, null);
215 if (++indx < cases.size()) {
216 mi = cases.get(indx);
217 LOG.log(Level.INFO, "Re-executing case {0}", indx);
221 if (!cases.isEmpty()) {
222 LOG.info("Re-executing test cases");
238 response.getWriter().write("");
241 LOG.log(Level.INFO, "End of data reached. Exiting.");
245 if (!mi.resources.isEmpty()) {
246 prev = new DynamicResourceHandler(mi);
250 final String cn = mi.clazz.getName();
251 final String mn = mi.methodName;
252 LOG.log(Level.INFO, "Request for {0} case. Sending {1}.{2}", new Object[]{caseNmbr, cn, mn});
253 response.getWriter().write("{"
254 + "className: '" + cn + "', "
255 + "methodName: '" + mn + "', "
256 + "request: " + caseNmbr
258 if (mi.html != null) {
259 response.getWriter().write(", html: '");
260 response.getWriter().write(encodeJSON(mi.html));
261 response.getWriter().write("'");
263 response.getWriter().write("}");
267 this.brwsr = launchServerAndBrwsr(server, "/execute");
270 private static String encodeJSON(String in) {
271 StringBuilder sb = new StringBuilder();
272 for (int i = 0; i < in.length(); i++) {
273 char ch = in.charAt(i);
274 if (ch < 32 || ch == '\'' || ch == '"') {
276 String hs = "0000" + Integer.toHexString(ch);
277 hs = hs.substring(hs.length() - 4);
283 return sb.toString();
287 public void shutdown() throws IOException {
290 int prev = methods.size();
292 if (wait != null && wait.await(timeOut, TimeUnit.MILLISECONDS)) {
295 } catch (InterruptedException ex) {
296 throw new IOException(ex);
298 if (prev == methods.size()) {
301 "Timeout and no test has been executed meanwhile (at {0}). Giving up.",
307 "Timeout, but tests got from {0} to {1}. Trying again.",
308 new Object[]{prev, methods.size()}
311 stopServerAndBrwsr(server, brwsr);
314 static void copyStream(InputStream is, OutputStream os, String baseURL, String... params) throws IOException {
320 if (ch == '$' && params.length > 0) {
321 int cnt = is.read() - '0';
322 if (cnt == 'U' - '0') {
323 os.write(baseURL.getBytes("UTF-8"));
325 if (cnt >= 0 && cnt < params.length) {
326 os.write(params[cnt].getBytes("UTF-8"));
334 private Object[] launchServerAndBrwsr(HttpServer server, final String page) throws IOException, URISyntaxException, InterruptedException {
336 NetworkListener listener = server.getListeners().iterator().next();
337 int port = listener.getPort();
339 URI uri = new URI("http://localhost:" + port + page);
340 return showBrwsr(uri);
342 private static String toUTF8(String value) throws UnsupportedEncodingException {
343 byte[] arr = new byte[value.length()];
344 for (int i = 0; i < arr.length; i++) {
345 arr[i] = (byte)value.charAt(i);
347 return new String(arr, "UTF-8");
350 private static String decodeURL(String s) {
352 int pos = s.indexOf('%');
356 int i = Integer.parseInt(s.substring(pos + 1, pos + 2), 16);
357 s = s.substring(0, pos) + (char)i + s.substring(pos + 2);
361 private void stopServerAndBrwsr(HttpServer server, Object[] brwsr) throws IOException {
365 Process process = (Process)brwsr[0];
368 InputStream stdout = process.getInputStream();
369 InputStream stderr = process.getErrorStream();
370 drain("StdOut", stdout);
371 drain("StdErr", stderr);
375 res = process.waitFor();
376 } catch (InterruptedException ex) {
377 throw new IOException(ex);
379 LOG.log(Level.INFO, "Exit code: {0}", res);
381 deleteTree((File)brwsr[1]);
384 private static void drain(String name, InputStream is) throws IOException {
385 int av = is.available();
387 StringBuilder sb = new StringBuilder();
388 sb.append("v== ").append(name).append(" ==v\n");
390 sb.append((char)is.read());
392 sb.append("\n^== ").append(name).append(" ==^");
393 LOG.log(Level.INFO, sb.toString());
397 private void deleteTree(File file) {
401 File[] arr = file.listFiles();
411 public void close() throws IOException {
415 protected Object[] showBrwsr(URI uri) throws IOException {
416 LOG.log(Level.INFO, "Showing {0}", uri);
419 LOG.log(Level.INFO, "Trying Desktop.browse on {0} {2} by {1}", new Object[] {
420 System.getProperty("java.vm.name"),
421 System.getProperty("java.vm.vendor"),
422 System.getProperty("java.vm.version"),
424 java.awt.Desktop.getDesktop().browse(uri);
425 LOG.log(Level.INFO, "Desktop.browse successfully finished");
427 } catch (UnsupportedOperationException ex) {
428 LOG.log(Level.INFO, "Desktop.browse not supported: {0}", ex.getMessage());
429 LOG.log(Level.FINE, null, ex);
433 String cmdName = cmd == null ? "xdg-open" : cmd;
435 cmdName, uri.toString()
437 LOG.log(Level.INFO, "Launching {0}", Arrays.toString(cmdArr));
438 final Process process = Runtime.getRuntime().exec(cmdArr);
439 return new Object[] { process, null };
443 void generateBck2BrwsrJS(StringBuilder sb, Bck2Brwsr.Resources loader) throws IOException {
444 Bck2Brwsr.generate(sb, loader);
446 "(function WrapperVM(global) {"
447 + " function ldCls(res) {\n"
448 + " var request = new XMLHttpRequest();\n"
449 + " request.open('GET', '/classes/' + res, false);\n"
450 + " request.send();\n"
451 + " if (request.status !== 200) return null;\n"
452 + " var arr = eval('(' + request.responseText + ')');\n"
455 + " var prevvm = global.bck2brwsr;\n"
456 + " global.bck2brwsr = function() {\n"
457 + " var args = Array.prototype.slice.apply(arguments);\n"
458 + " args.unshift(ldCls);\n"
459 + " return prevvm.apply(null, args);\n"
464 private class Res implements Bck2Brwsr.Resources {
466 public InputStream get(String resource) throws IOException {
467 for (ClassLoader l : loaders) {
469 Enumeration<URL> en = l.getResources(resource);
470 while (en.hasMoreElements()) {
471 u = en.nextElement();
474 return u.openStream();
477 throw new IOException("Can't find " + resource);
481 private static class Page extends HttpHandler {
482 private final String resource;
483 private final String[] args;
484 private final Res res;
486 public Page(Res res, String resource, String... args) {
488 this.resource = resource;
489 this.args = args.length == 0 ? new String[] { "$0" } : args;
493 public void service(Request request, Response response) throws Exception {
496 r = request.getHttpHandlerPath();
498 if (r.startsWith("/")) {
501 String[] replace = {};
502 if (r.endsWith(".html")) {
503 response.setContentType("text/html");
504 LOG.info("Content type text/html");
507 if (r.endsWith(".xhtml")) {
508 response.setContentType("application/xhtml+xml");
509 LOG.info("Content type application/xhtml+xml");
512 OutputStream os = response.getOutputStream();
513 try (InputStream is = res.get(r)) {
514 copyStream(is, os, request.getRequestURL().toString(), replace);
515 } catch (IOException ex) {
516 response.setDetailMessage(ex.getLocalizedMessage());
518 response.setStatus(404);
523 private static class VM extends HttpHandler {
524 private final String bck2brwsr;
526 public VM(Bck2BrwsrLauncher l, Res loader) throws IOException {
527 StringBuilder sb = new StringBuilder();
528 l.generateBck2BrwsrJS(
530 this.bck2brwsr = sb.toString();
534 public void service(Request request, Response response) throws Exception {
535 response.setCharacterEncoding("UTF-8");
536 response.setContentType("text/javascript");
537 response.getWriter().write(bck2brwsr);
541 private static class Classes extends HttpHandler {
542 private final Res loader;
544 public Classes(Res loader) {
545 this.loader = loader;
549 public void service(Request request, Response response) throws Exception {
550 String res = request.getHttpHandlerPath();
551 if (res.startsWith("/")) {
552 res = res.substring(1);
554 try (InputStream is = loader.get(res)) {
555 response.setContentType("text/javascript");
556 Writer w = response.getWriter();
558 for (int i = 0;; i++) {
572 w.append(Integer.toString(b));
575 } catch (IOException ex) {
576 response.setStatus(HttpStatus.NOT_FOUND_404);
578 response.setDetailMessage(ex.getMessage());