rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java
1.1 --- a/rt/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java Tue Apr 02 15:40:51 2013 +0200
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,570 +0,0 @@
1.4 -/**
1.5 - * Back 2 Browser Bytecode Translator
1.6 - * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
1.7 - *
1.8 - * This program is free software: you can redistribute it and/or modify
1.9 - * it under the terms of the GNU General Public License as published by
1.10 - * the Free Software Foundation, version 2 of the License.
1.11 - *
1.12 - * This program is distributed in the hope that it will be useful,
1.13 - * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.14 - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.15 - * GNU General Public License for more details.
1.16 - *
1.17 - * You should have received a copy of the GNU General Public License
1.18 - * along with this program. Look for COPYING file in the top folder.
1.19 - * If not, see http://opensource.org/licenses/GPL-2.0.
1.20 - */
1.21 -package org.apidesign.bck2brwsr.launcher;
1.22 -
1.23 -import java.io.Closeable;
1.24 -import java.io.File;
1.25 -import java.io.IOException;
1.26 -import java.io.InputStream;
1.27 -import java.io.InterruptedIOException;
1.28 -import java.io.OutputStream;
1.29 -import java.io.UnsupportedEncodingException;
1.30 -import java.io.Writer;
1.31 -import java.net.URI;
1.32 -import java.net.URISyntaxException;
1.33 -import java.net.URL;
1.34 -import java.util.ArrayList;
1.35 -import java.util.Arrays;
1.36 -import java.util.Enumeration;
1.37 -import java.util.LinkedHashSet;
1.38 -import java.util.List;
1.39 -import java.util.Set;
1.40 -import java.util.concurrent.BlockingQueue;
1.41 -import java.util.concurrent.CountDownLatch;
1.42 -import java.util.concurrent.LinkedBlockingQueue;
1.43 -import java.util.concurrent.TimeUnit;
1.44 -import java.util.logging.Level;
1.45 -import java.util.logging.Logger;
1.46 -import org.apidesign.bck2brwsr.launcher.InvocationContext.Resource;
1.47 -import org.apidesign.vm4brwsr.Bck2Brwsr;
1.48 -import org.glassfish.grizzly.PortRange;
1.49 -import org.glassfish.grizzly.http.server.HttpHandler;
1.50 -import org.glassfish.grizzly.http.server.HttpServer;
1.51 -import org.glassfish.grizzly.http.server.NetworkListener;
1.52 -import org.glassfish.grizzly.http.server.Request;
1.53 -import org.glassfish.grizzly.http.server.Response;
1.54 -import org.glassfish.grizzly.http.server.ServerConfiguration;
1.55 -import org.glassfish.grizzly.http.util.HttpStatus;
1.56 -
1.57 -/**
1.58 - * Lightweight server to launch Bck2Brwsr applications and tests.
1.59 - * Supports execution in native browser as well as Java's internal
1.60 - * execution engine.
1.61 - */
1.62 -final class Bck2BrwsrLauncher extends Launcher implements Closeable {
1.63 - private static final Logger LOG = Logger.getLogger(Bck2BrwsrLauncher.class.getName());
1.64 - private static final InvocationContext END = new InvocationContext(null, null, null);
1.65 - private final Set<ClassLoader> loaders = new LinkedHashSet<>();
1.66 - private final BlockingQueue<InvocationContext> methods = new LinkedBlockingQueue<>();
1.67 - private long timeOut;
1.68 - private final Res resources = new Res();
1.69 - private final String cmd;
1.70 - private Object[] brwsr;
1.71 - private HttpServer server;
1.72 - private CountDownLatch wait;
1.73 -
1.74 - public Bck2BrwsrLauncher(String cmd) {
1.75 - this.cmd = cmd;
1.76 - }
1.77 -
1.78 - @Override
1.79 - InvocationContext runMethod(InvocationContext c) throws IOException {
1.80 - loaders.add(c.clazz.getClassLoader());
1.81 - methods.add(c);
1.82 - try {
1.83 - c.await(timeOut);
1.84 - } catch (InterruptedException ex) {
1.85 - throw new IOException(ex);
1.86 - }
1.87 - return c;
1.88 - }
1.89 -
1.90 - public void setTimeout(long ms) {
1.91 - timeOut = ms;
1.92 - }
1.93 -
1.94 - public void addClassLoader(ClassLoader url) {
1.95 - this.loaders.add(url);
1.96 - }
1.97 -
1.98 - public void showURL(String startpage) throws IOException {
1.99 - if (!startpage.startsWith("/")) {
1.100 - startpage = "/" + startpage;
1.101 - }
1.102 - HttpServer s = initServer(".", true);
1.103 - int last = startpage.lastIndexOf('/');
1.104 - String simpleName = startpage.substring(last);
1.105 - s.getServerConfiguration().addHttpHandler(new Page(resources, startpage), simpleName);
1.106 - s.getServerConfiguration().addHttpHandler(new Page(resources, null), "/");
1.107 - try {
1.108 - launchServerAndBrwsr(s, simpleName);
1.109 - } catch (URISyntaxException | InterruptedException ex) {
1.110 - throw new IOException(ex);
1.111 - }
1.112 - }
1.113 -
1.114 - void showDirectory(File dir, String startpage) throws IOException {
1.115 - if (!startpage.startsWith("/")) {
1.116 - startpage = "/" + startpage;
1.117 - }
1.118 - HttpServer s = initServer(dir.getPath(), false);
1.119 - try {
1.120 - launchServerAndBrwsr(s, startpage);
1.121 - } catch (URISyntaxException | InterruptedException ex) {
1.122 - throw new IOException(ex);
1.123 - }
1.124 - }
1.125 -
1.126 - @Override
1.127 - public void initialize() throws IOException {
1.128 - try {
1.129 - executeInBrowser();
1.130 - } catch (InterruptedException ex) {
1.131 - final InterruptedIOException iio = new InterruptedIOException(ex.getMessage());
1.132 - iio.initCause(ex);
1.133 - throw iio;
1.134 - } catch (Exception ex) {
1.135 - if (ex instanceof IOException) {
1.136 - throw (IOException)ex;
1.137 - }
1.138 - if (ex instanceof RuntimeException) {
1.139 - throw (RuntimeException)ex;
1.140 - }
1.141 - throw new IOException(ex);
1.142 - }
1.143 - }
1.144 -
1.145 - private HttpServer initServer(String path, boolean addClasses) throws IOException {
1.146 - HttpServer s = HttpServer.createSimpleServer(path, new PortRange(8080, 65535));
1.147 -
1.148 - final ServerConfiguration conf = s.getServerConfiguration();
1.149 - if (addClasses) {
1.150 - conf.addHttpHandler(new VM(resources), "/bck2brwsr.js");
1.151 - conf.addHttpHandler(new Classes(resources), "/classes/");
1.152 - }
1.153 - return s;
1.154 - }
1.155 -
1.156 - private void executeInBrowser() throws InterruptedException, URISyntaxException, IOException {
1.157 - wait = new CountDownLatch(1);
1.158 - server = initServer(".", true);
1.159 - final ServerConfiguration conf = server.getServerConfiguration();
1.160 -
1.161 - class DynamicResourceHandler extends HttpHandler {
1.162 - private final InvocationContext ic;
1.163 - public DynamicResourceHandler(InvocationContext ic) {
1.164 - if (ic == null || ic.resources.isEmpty()) {
1.165 - throw new NullPointerException();
1.166 - }
1.167 - this.ic = ic;
1.168 - for (Resource r : ic.resources) {
1.169 - conf.addHttpHandler(this, r.httpPath);
1.170 - }
1.171 - }
1.172 -
1.173 - public void close() {
1.174 - conf.removeHttpHandler(this);
1.175 - }
1.176 -
1.177 - @Override
1.178 - public void service(Request request, Response response) throws Exception {
1.179 - for (Resource r : ic.resources) {
1.180 - if (r.httpPath.equals(request.getRequestURI())) {
1.181 - LOG.log(Level.INFO, "Serving HttpResource for {0}", request.getRequestURI());
1.182 - response.setContentType(r.httpType);
1.183 - copyStream(r.httpContent, response.getOutputStream(), null);
1.184 - }
1.185 - }
1.186 - }
1.187 - }
1.188 -
1.189 - conf.addHttpHandler(new Page(resources,
1.190 - "org/apidesign/bck2brwsr/launcher/harness.xhtml"
1.191 - ), "/execute");
1.192 -
1.193 - conf.addHttpHandler(new HttpHandler() {
1.194 - int cnt;
1.195 - List<InvocationContext> cases = new ArrayList<>();
1.196 - DynamicResourceHandler prev;
1.197 - @Override
1.198 - public void service(Request request, Response response) throws Exception {
1.199 - String id = request.getParameter("request");
1.200 - String value = request.getParameter("result");
1.201 - if (value != null && value.indexOf((char)0xC5) != -1) {
1.202 - value = toUTF8(value);
1.203 - }
1.204 -
1.205 -
1.206 - InvocationContext mi = null;
1.207 - int caseNmbr = -1;
1.208 -
1.209 - if (id != null && value != null) {
1.210 - LOG.log(Level.INFO, "Received result for case {0} = {1}", new Object[]{id, value});
1.211 - value = decodeURL(value);
1.212 - int indx = Integer.parseInt(id);
1.213 - cases.get(indx).result(value, null);
1.214 - if (++indx < cases.size()) {
1.215 - mi = cases.get(indx);
1.216 - LOG.log(Level.INFO, "Re-executing case {0}", indx);
1.217 - caseNmbr = indx;
1.218 - }
1.219 - } else {
1.220 - if (!cases.isEmpty()) {
1.221 - LOG.info("Re-executing test cases");
1.222 - mi = cases.get(0);
1.223 - caseNmbr = 0;
1.224 - }
1.225 - }
1.226 -
1.227 - if (prev != null) {
1.228 - prev.close();
1.229 - prev = null;
1.230 - }
1.231 -
1.232 - if (mi == null) {
1.233 - mi = methods.take();
1.234 - caseNmbr = cnt++;
1.235 - }
1.236 - if (mi == END) {
1.237 - response.getWriter().write("");
1.238 - wait.countDown();
1.239 - cnt = 0;
1.240 - LOG.log(Level.INFO, "End of data reached. Exiting.");
1.241 - return;
1.242 - }
1.243 -
1.244 - if (!mi.resources.isEmpty()) {
1.245 - prev = new DynamicResourceHandler(mi);
1.246 - }
1.247 -
1.248 - cases.add(mi);
1.249 - final String cn = mi.clazz.getName();
1.250 - final String mn = mi.methodName;
1.251 - LOG.log(Level.INFO, "Request for {0} case. Sending {1}.{2}", new Object[]{caseNmbr, cn, mn});
1.252 - response.getWriter().write("{"
1.253 - + "className: '" + cn + "', "
1.254 - + "methodName: '" + mn + "', "
1.255 - + "request: " + caseNmbr
1.256 - );
1.257 - if (mi.html != null) {
1.258 - response.getWriter().write(", html: '");
1.259 - response.getWriter().write(encodeJSON(mi.html));
1.260 - response.getWriter().write("'");
1.261 - }
1.262 - response.getWriter().write("}");
1.263 - }
1.264 - }, "/data");
1.265 -
1.266 - this.brwsr = launchServerAndBrwsr(server, "/execute");
1.267 - }
1.268 -
1.269 - private static String encodeJSON(String in) {
1.270 - StringBuilder sb = new StringBuilder();
1.271 - for (int i = 0; i < in.length(); i++) {
1.272 - char ch = in.charAt(i);
1.273 - if (ch < 32 || ch == '\'' || ch == '"') {
1.274 - sb.append("\\u");
1.275 - String hs = "0000" + Integer.toHexString(ch);
1.276 - hs = hs.substring(hs.length() - 4);
1.277 - sb.append(hs);
1.278 - } else {
1.279 - sb.append(ch);
1.280 - }
1.281 - }
1.282 - return sb.toString();
1.283 - }
1.284 -
1.285 - @Override
1.286 - public void shutdown() throws IOException {
1.287 - methods.offer(END);
1.288 - for (;;) {
1.289 - int prev = methods.size();
1.290 - try {
1.291 - if (wait != null && wait.await(timeOut, TimeUnit.MILLISECONDS)) {
1.292 - break;
1.293 - }
1.294 - } catch (InterruptedException ex) {
1.295 - throw new IOException(ex);
1.296 - }
1.297 - if (prev == methods.size()) {
1.298 - LOG.log(
1.299 - Level.WARNING,
1.300 - "Timeout and no test has been executed meanwhile (at {0}). Giving up.",
1.301 - methods.size()
1.302 - );
1.303 - break;
1.304 - }
1.305 - LOG.log(Level.INFO,
1.306 - "Timeout, but tests got from {0} to {1}. Trying again.",
1.307 - new Object[]{prev, methods.size()}
1.308 - );
1.309 - }
1.310 - stopServerAndBrwsr(server, brwsr);
1.311 - }
1.312 -
1.313 - static void copyStream(InputStream is, OutputStream os, String baseURL, String... params) throws IOException {
1.314 - for (;;) {
1.315 - int ch = is.read();
1.316 - if (ch == -1) {
1.317 - break;
1.318 - }
1.319 - if (ch == '$' && params.length > 0) {
1.320 - int cnt = is.read() - '0';
1.321 - if (cnt == 'U' - '0') {
1.322 - os.write(baseURL.getBytes("UTF-8"));
1.323 - }
1.324 - if (cnt >= 0 && cnt < params.length) {
1.325 - os.write(params[cnt].getBytes("UTF-8"));
1.326 - }
1.327 - } else {
1.328 - os.write(ch);
1.329 - }
1.330 - }
1.331 - }
1.332 -
1.333 - private Object[] launchServerAndBrwsr(HttpServer server, final String page) throws IOException, URISyntaxException, InterruptedException {
1.334 - server.start();
1.335 - NetworkListener listener = server.getListeners().iterator().next();
1.336 - int port = listener.getPort();
1.337 -
1.338 - URI uri = new URI("http://localhost:" + port + page);
1.339 - LOG.log(Level.INFO, "Showing {0}", uri);
1.340 - if (cmd == null) {
1.341 - try {
1.342 - LOG.log(Level.INFO, "Trying Desktop.browse on {0} {2} by {1}", new Object[] {
1.343 - System.getProperty("java.vm.name"),
1.344 - System.getProperty("java.vm.vendor"),
1.345 - System.getProperty("java.vm.version"),
1.346 - });
1.347 - java.awt.Desktop.getDesktop().browse(uri);
1.348 - LOG.log(Level.INFO, "Desktop.browse successfully finished");
1.349 - return null;
1.350 - } catch (UnsupportedOperationException ex) {
1.351 - LOG.log(Level.INFO, "Desktop.browse not supported: {0}", ex.getMessage());
1.352 - LOG.log(Level.FINE, null, ex);
1.353 - }
1.354 - }
1.355 - {
1.356 - String cmdName = cmd == null ? "xdg-open" : cmd;
1.357 - String[] cmdArr = {
1.358 - cmdName, uri.toString()
1.359 - };
1.360 - LOG.log(Level.INFO, "Launching {0}", Arrays.toString(cmdArr));
1.361 - final Process process = Runtime.getRuntime().exec(cmdArr);
1.362 - return new Object[] { process, null };
1.363 - }
1.364 - }
1.365 - private static String toUTF8(String value) throws UnsupportedEncodingException {
1.366 - byte[] arr = new byte[value.length()];
1.367 - for (int i = 0; i < arr.length; i++) {
1.368 - arr[i] = (byte)value.charAt(i);
1.369 - }
1.370 - return new String(arr, "UTF-8");
1.371 - }
1.372 -
1.373 - private static String decodeURL(String s) {
1.374 - for (;;) {
1.375 - int pos = s.indexOf('%');
1.376 - if (pos == -1) {
1.377 - return s;
1.378 - }
1.379 - int i = Integer.parseInt(s.substring(pos + 1, pos + 2), 16);
1.380 - s = s.substring(0, pos) + (char)i + s.substring(pos + 2);
1.381 - }
1.382 - }
1.383 -
1.384 - private void stopServerAndBrwsr(HttpServer server, Object[] brwsr) throws IOException {
1.385 - if (brwsr == null) {
1.386 - return;
1.387 - }
1.388 - Process process = (Process)brwsr[0];
1.389 -
1.390 - server.stop();
1.391 - InputStream stdout = process.getInputStream();
1.392 - InputStream stderr = process.getErrorStream();
1.393 - drain("StdOut", stdout);
1.394 - drain("StdErr", stderr);
1.395 - process.destroy();
1.396 - int res;
1.397 - try {
1.398 - res = process.waitFor();
1.399 - } catch (InterruptedException ex) {
1.400 - throw new IOException(ex);
1.401 - }
1.402 - LOG.log(Level.INFO, "Exit code: {0}", res);
1.403 -
1.404 - deleteTree((File)brwsr[1]);
1.405 - }
1.406 -
1.407 - private static void drain(String name, InputStream is) throws IOException {
1.408 - int av = is.available();
1.409 - if (av > 0) {
1.410 - StringBuilder sb = new StringBuilder();
1.411 - sb.append("v== ").append(name).append(" ==v\n");
1.412 - while (av-- > 0) {
1.413 - sb.append((char)is.read());
1.414 - }
1.415 - sb.append("\n^== ").append(name).append(" ==^");
1.416 - LOG.log(Level.INFO, sb.toString());
1.417 - }
1.418 - }
1.419 -
1.420 - private void deleteTree(File file) {
1.421 - if (file == null) {
1.422 - return;
1.423 - }
1.424 - File[] arr = file.listFiles();
1.425 - if (arr != null) {
1.426 - for (File s : arr) {
1.427 - deleteTree(s);
1.428 - }
1.429 - }
1.430 - file.delete();
1.431 - }
1.432 -
1.433 - @Override
1.434 - public void close() throws IOException {
1.435 - shutdown();
1.436 - }
1.437 -
1.438 - private class Res implements Bck2Brwsr.Resources {
1.439 - @Override
1.440 - public InputStream get(String resource) throws IOException {
1.441 - for (ClassLoader l : loaders) {
1.442 - URL u = null;
1.443 - Enumeration<URL> en = l.getResources(resource);
1.444 - while (en.hasMoreElements()) {
1.445 - u = en.nextElement();
1.446 - }
1.447 - if (u != null) {
1.448 - return u.openStream();
1.449 - }
1.450 - }
1.451 - throw new IOException("Can't find " + resource);
1.452 - }
1.453 - }
1.454 -
1.455 - private static class Page extends HttpHandler {
1.456 - private final String resource;
1.457 - private final String[] args;
1.458 - private final Res res;
1.459 -
1.460 - public Page(Res res, String resource, String... args) {
1.461 - this.res = res;
1.462 - this.resource = resource;
1.463 - this.args = args.length == 0 ? new String[] { "$0" } : args;
1.464 - }
1.465 -
1.466 - @Override
1.467 - public void service(Request request, Response response) throws Exception {
1.468 - String r = resource;
1.469 - if (r == null) {
1.470 - r = request.getHttpHandlerPath();
1.471 - }
1.472 - if (r.startsWith("/")) {
1.473 - r = r.substring(1);
1.474 - }
1.475 - String[] replace = {};
1.476 - if (r.endsWith(".html")) {
1.477 - response.setContentType("text/html");
1.478 - LOG.info("Content type text/html");
1.479 - replace = args;
1.480 - }
1.481 - if (r.endsWith(".xhtml")) {
1.482 - response.setContentType("application/xhtml+xml");
1.483 - LOG.info("Content type application/xhtml+xml");
1.484 - replace = args;
1.485 - }
1.486 - OutputStream os = response.getOutputStream();
1.487 - try (InputStream is = res.get(r)) {
1.488 - copyStream(is, os, request.getRequestURL().toString(), replace);
1.489 - } catch (IOException ex) {
1.490 - response.setDetailMessage(ex.getLocalizedMessage());
1.491 - response.setError();
1.492 - response.setStatus(404);
1.493 - }
1.494 - }
1.495 - }
1.496 -
1.497 - private static class VM extends HttpHandler {
1.498 - private final String bck2brwsr;
1.499 -
1.500 - public VM(Res loader) throws IOException {
1.501 - StringBuilder sb = new StringBuilder();
1.502 - Bck2Brwsr.generate(sb, loader);
1.503 - sb.append(
1.504 - "(function WrapperVM(global) {"
1.505 - + " function ldCls(res) {\n"
1.506 - + " var request = new XMLHttpRequest();\n"
1.507 - + " request.open('GET', '/classes/' + res, false);\n"
1.508 - + " request.send();\n"
1.509 - + " if (request.status !== 200) return null;\n"
1.510 - + " var arr = eval('(' + request.responseText + ')');\n"
1.511 - + " return arr;\n"
1.512 - + " }\n"
1.513 - + " var prevvm = global.bck2brwsr;\n"
1.514 - + " global.bck2brwsr = function() {\n"
1.515 - + " var args = Array.prototype.slice.apply(arguments);\n"
1.516 - + " args.unshift(ldCls);\n"
1.517 - + " return prevvm.apply(null, args);\n"
1.518 - + " };\n"
1.519 - + "})(this);\n"
1.520 - );
1.521 - this.bck2brwsr = sb.toString();
1.522 - }
1.523 -
1.524 - @Override
1.525 - public void service(Request request, Response response) throws Exception {
1.526 - response.setCharacterEncoding("UTF-8");
1.527 - response.setContentType("text/javascript");
1.528 - response.getWriter().write(bck2brwsr);
1.529 - }
1.530 - }
1.531 -
1.532 - private static class Classes extends HttpHandler {
1.533 - private final Res loader;
1.534 -
1.535 - public Classes(Res loader) {
1.536 - this.loader = loader;
1.537 - }
1.538 -
1.539 - @Override
1.540 - public void service(Request request, Response response) throws Exception {
1.541 - String res = request.getHttpHandlerPath();
1.542 - if (res.startsWith("/")) {
1.543 - res = res.substring(1);
1.544 - }
1.545 - try (InputStream is = loader.get(res)) {
1.546 - response.setContentType("text/javascript");
1.547 - Writer w = response.getWriter();
1.548 - w.append("[");
1.549 - for (int i = 0;; i++) {
1.550 - int b = is.read();
1.551 - if (b == -1) {
1.552 - break;
1.553 - }
1.554 - if (i > 0) {
1.555 - w.append(", ");
1.556 - }
1.557 - if (i % 20 == 0) {
1.558 - w.write("\n");
1.559 - }
1.560 - if (b > 127) {
1.561 - b = b - 256;
1.562 - }
1.563 - w.append(Integer.toString(b));
1.564 - }
1.565 - w.append("\n]");
1.566 - } catch (IOException ex) {
1.567 - response.setStatus(HttpStatus.NOT_FOUND_404);
1.568 - response.setError();
1.569 - response.setDetailMessage(ex.getMessage());
1.570 - }
1.571 - }
1.572 - }
1.573 -}