1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/launcher/http/src/main/java/org/apidesign/bck2brwsr/launcher/impl/Console.java Sun Apr 28 10:14:31 2013 +0200
1.3 @@ -0,0 +1,356 @@
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.impl;
1.22 +
1.23 +import java.io.IOException;
1.24 +import java.io.InputStream;
1.25 +import java.io.UnsupportedEncodingException;
1.26 +import java.lang.reflect.InvocationTargetException;
1.27 +import java.lang.reflect.Method;
1.28 +import java.lang.reflect.Modifier;
1.29 +import java.net.URL;
1.30 +import java.util.Enumeration;
1.31 +import org.apidesign.bck2brwsr.core.JavaScriptBody;
1.32 +
1.33 +/**
1.34 + *
1.35 + * @author Jaroslav Tulach <jtulach@netbeans.org>
1.36 + */
1.37 +public class Console {
1.38 + private Console() {
1.39 + }
1.40 + static {
1.41 + turnAssetionStatusOn();
1.42 + }
1.43 +
1.44 + @JavaScriptBody(args = {"id", "attr"}, body =
1.45 + "return window.document.getElementById(id)[attr].toString();")
1.46 + private static native Object getAttr(String id, String attr);
1.47 + @JavaScriptBody(args = {"elem", "attr"}, body =
1.48 + "return elem[attr].toString();")
1.49 + private static native Object getAttr(Object elem, String attr);
1.50 +
1.51 + @JavaScriptBody(args = {"id", "attr", "value"}, body =
1.52 + "window.document.getElementById(id)[attr] = value;")
1.53 + private static native void setAttr(String id, String attr, Object value);
1.54 + @JavaScriptBody(args = {"elem", "attr", "value"}, body =
1.55 + "elem[attr] = value;")
1.56 + private static native void setAttr(Object id, String attr, Object value);
1.57 +
1.58 + @JavaScriptBody(args = {}, body = "return; window.close();")
1.59 + private static native void closeWindow();
1.60 +
1.61 + private static Object textArea;
1.62 + private static Object statusArea;
1.63 +
1.64 + private static void log(String newText) {
1.65 + if (textArea == null) {
1.66 + return;
1.67 + }
1.68 + String attr = "value";
1.69 + setAttr(textArea, attr, getAttr(textArea, attr) + "\n" + newText);
1.70 + setAttr(textArea, "scrollTop", getAttr(textArea, "scrollHeight"));
1.71 + }
1.72 +
1.73 + private static void beginTest(Case c) {
1.74 + Object[] arr = new Object[2];
1.75 + beginTest(c.getClassName() + "." + c.getMethodName(), c, arr);
1.76 + textArea = arr[0];
1.77 + statusArea = arr[1];
1.78 + }
1.79 +
1.80 + private static void finishTest(Case c, Object res) {
1.81 + if ("null".equals(res)) {
1.82 + setAttr(statusArea, "innerHTML", "Success");
1.83 + } else {
1.84 + setAttr(statusArea, "innerHTML", "Result " + res);
1.85 + }
1.86 + statusArea = null;
1.87 + textArea = null;
1.88 + }
1.89 +
1.90 + @JavaScriptBody(args = { "test", "c", "arr" }, body =
1.91 + "var ul = window.document.getElementById('bck2brwsr.result');\n"
1.92 + + "var li = window.document.createElement('li');\n"
1.93 + + "var span = window.document.createElement('span');"
1.94 + + "span.innerHTML = test + ' - ';\n"
1.95 + + "var details = window.document.createElement('a');\n"
1.96 + + "details.innerHTML = 'Details';\n"
1.97 + + "details.href = '#';\n"
1.98 + + "var p = window.document.createElement('p');\n"
1.99 + + "var status = window.document.createElement('a');\n"
1.100 + + "status.innerHTML = 'running';"
1.101 + + "details.onclick = function() { li.appendChild(p); li.removeChild(details); status.innerHTML = 'Run Again'; status.href = '#'; };\n"
1.102 + + "status.onclick = function() { c.again__V_3Ljava_lang_Object_2(arr); }\n"
1.103 + + "var pre = window.document.createElement('textarea');\n"
1.104 + + "pre.cols = 100;"
1.105 + + "pre.rows = 10;"
1.106 + + "li.appendChild(span);\n"
1.107 + + "li.appendChild(status);\n"
1.108 + + "var span = window.document.createElement('span');"
1.109 + + "span.innerHTML = ' ';\n"
1.110 + + "li.appendChild(span);\n"
1.111 + + "li.appendChild(details);\n"
1.112 + + "p.appendChild(pre);\n"
1.113 + + "ul.appendChild(li);\n"
1.114 + + "arr[0] = pre;\n"
1.115 + + "arr[1] = status;\n"
1.116 + )
1.117 + private static native void beginTest(String test, Case c, Object[] arr);
1.118 +
1.119 + @JavaScriptBody(args = { "url", "callback", "arr" }, body = ""
1.120 + + "var request = new XMLHttpRequest();\n"
1.121 + + "request.open('GET', url, true);\n"
1.122 + + "request.setRequestHeader('Content-Type', 'text/plain; charset=utf-8');\n"
1.123 + + "request.onreadystatechange = function() {\n"
1.124 + + " if (this.readyState!==4) return;\n"
1.125 + + " arr[0] = this.responseText;\n"
1.126 + + " callback.run__V();\n"
1.127 + + "};"
1.128 + + "request.send();"
1.129 + )
1.130 + private static native void loadText(String url, Runnable callback, String[] arr) throws IOException;
1.131 +
1.132 + public static void harness(String url) throws IOException {
1.133 + log("Connecting to " + url);
1.134 + Request r = new Request(url);
1.135 + }
1.136 +
1.137 + private static class Request implements Runnable {
1.138 + private final String[] arr = { null };
1.139 + private final String url;
1.140 + private Case c;
1.141 + private int retries;
1.142 +
1.143 + private Request(String url) throws IOException {
1.144 + this.url = url;
1.145 + loadText(url, this, arr);
1.146 + }
1.147 + private Request(String url, String u) throws IOException {
1.148 + this.url = url;
1.149 + loadText(u, this, arr);
1.150 + }
1.151 +
1.152 + @Override
1.153 + public void run() {
1.154 + try {
1.155 + if (c == null) {
1.156 + String data = arr[0];
1.157 +
1.158 + if (data == null) {
1.159 + log("Some error exiting");
1.160 + closeWindow();
1.161 + return;
1.162 + }
1.163 +
1.164 + if (data.isEmpty()) {
1.165 + log("No data, exiting");
1.166 + closeWindow();
1.167 + return;
1.168 + }
1.169 +
1.170 + c = Case.parseData(data);
1.171 + beginTest(c);
1.172 + log("Got \"" + data + "\"");
1.173 + } else {
1.174 + log("Processing \"" + arr[0] + "\" for " + retries + " time");
1.175 + }
1.176 + Object result = retries++ >= 10 ? "java.lang.InterruptedException:timeout" : c.runTest();
1.177 + finishTest(c, result);
1.178 +
1.179 + String u = url + "?request=" + c.getRequestId() + "&result=" + result;
1.180 + new Request(url, u);
1.181 + } catch (Exception ex) {
1.182 + if (ex instanceof InterruptedException) {
1.183 + log("Re-scheduling in 100ms");
1.184 + schedule(this, 100);
1.185 + return;
1.186 + }
1.187 + log(ex.getClass().getName() + ":" + ex.getMessage());
1.188 + }
1.189 + }
1.190 + }
1.191 +
1.192 + private static String encodeURL(String r) throws UnsupportedEncodingException {
1.193 + final String SPECIAL = "%$&+,/:;=?@";
1.194 + StringBuilder sb = new StringBuilder();
1.195 + byte[] utf8 = r.getBytes("UTF-8");
1.196 + for (int i = 0; i < utf8.length; i++) {
1.197 + int ch = utf8[i] & 0xff;
1.198 + if (ch < 32 || ch > 127 || SPECIAL.indexOf(ch) >= 0) {
1.199 + final String numbers = "0" + Integer.toHexString(ch);
1.200 + sb.append("%").append(numbers.substring(numbers.length() - 2));
1.201 + } else {
1.202 + if (ch == 32) {
1.203 + sb.append("+");
1.204 + } else {
1.205 + sb.append((char)ch);
1.206 + }
1.207 + }
1.208 + }
1.209 + return sb.toString();
1.210 + }
1.211 +
1.212 + static String invoke(String clazz, String method) throws
1.213 + ClassNotFoundException, InvocationTargetException, IllegalAccessException,
1.214 + InstantiationException, InterruptedException {
1.215 + final Object r = new Case(null).invokeMethod(clazz, method);
1.216 + return r == null ? "null" : r.toString().toString();
1.217 + }
1.218 +
1.219 + /** Helper method that inspects the classpath and loads given resource
1.220 + * (usually a class file). Used while running tests in Rhino.
1.221 + *
1.222 + * @param name resource name to find
1.223 + * @return the array of bytes in the given resource
1.224 + * @throws IOException I/O in case something goes wrong
1.225 + */
1.226 + public static byte[] read(String name) throws IOException {
1.227 + URL u = null;
1.228 + Enumeration<URL> en = Console.class.getClassLoader().getResources(name);
1.229 + while (en.hasMoreElements()) {
1.230 + u = en.nextElement();
1.231 + }
1.232 + if (u == null) {
1.233 + throw new IOException("Can't find " + name);
1.234 + }
1.235 + try (InputStream is = u.openStream()) {
1.236 + byte[] arr;
1.237 + arr = new byte[is.available()];
1.238 + int offset = 0;
1.239 + while (offset < arr.length) {
1.240 + int len = is.read(arr, offset, arr.length - offset);
1.241 + if (len == -1) {
1.242 + throw new IOException("Can't read " + name);
1.243 + }
1.244 + offset += len;
1.245 + }
1.246 + return arr;
1.247 + }
1.248 + }
1.249 +
1.250 + @JavaScriptBody(args = {}, body = "vm.desiredAssertionStatus = true;")
1.251 + private static void turnAssetionStatusOn() {
1.252 + }
1.253 +
1.254 + @JavaScriptBody(args = {"r", "time"}, body =
1.255 + "return window.setTimeout(function() { r.run__V(); }, time);")
1.256 + private static native Object schedule(Runnable r, int time);
1.257 +
1.258 + private static final class Case {
1.259 + private final Object data;
1.260 + private Object inst;
1.261 +
1.262 + private Case(Object data) {
1.263 + this.data = data;
1.264 + }
1.265 +
1.266 + public static Case parseData(String s) {
1.267 + return new Case(toJSON(s));
1.268 + }
1.269 +
1.270 + public String getMethodName() {
1.271 + return value("methodName", data);
1.272 + }
1.273 +
1.274 + public String getClassName() {
1.275 + return value("className", data);
1.276 + }
1.277 +
1.278 + public String getRequestId() {
1.279 + return value("request", data);
1.280 + }
1.281 +
1.282 + public String getHtmlFragment() {
1.283 + return value("html", data);
1.284 + }
1.285 +
1.286 + void again(Object[] arr) {
1.287 + try {
1.288 + textArea = arr[0];
1.289 + statusArea = arr[1];
1.290 + setAttr(textArea, "value", "");
1.291 + runTest();
1.292 + } catch (Exception ex) {
1.293 + log(ex.getClass().getName() + ":" + ex.getMessage());
1.294 + }
1.295 + }
1.296 +
1.297 + private Object runTest() throws IllegalAccessException,
1.298 + IllegalArgumentException, ClassNotFoundException, UnsupportedEncodingException,
1.299 + InvocationTargetException, InstantiationException, InterruptedException {
1.300 + if (this.getHtmlFragment() != null) {
1.301 + setAttr("bck2brwsr.fragment", "innerHTML", this.getHtmlFragment());
1.302 + }
1.303 + log("Invoking " + this.getClassName() + '.' + this.getMethodName() + " as request: " + this.getRequestId());
1.304 + Object result = invokeMethod(this.getClassName(), this.getMethodName());
1.305 + setAttr("bck2brwsr.fragment", "innerHTML", "");
1.306 + log("Result: " + result);
1.307 + result = encodeURL("" + result);
1.308 + log("Sending back: ...?request=" + this.getRequestId() + "&result=" + result);
1.309 + return result;
1.310 + }
1.311 +
1.312 + private Object invokeMethod(String clazz, String method)
1.313 + throws ClassNotFoundException, InvocationTargetException,
1.314 + InterruptedException, IllegalAccessException, IllegalArgumentException,
1.315 + InstantiationException {
1.316 + Method found = null;
1.317 + Class<?> c = Class.forName(clazz);
1.318 + for (Method m : c.getMethods()) {
1.319 + if (m.getName().equals(method)) {
1.320 + found = m;
1.321 + }
1.322 + }
1.323 + Object res;
1.324 + if (found != null) {
1.325 + try {
1.326 + if ((found.getModifiers() & Modifier.STATIC) != 0) {
1.327 + res = found.invoke(null);
1.328 + } else {
1.329 + if (inst == null) {
1.330 + inst = c.newInstance();
1.331 + }
1.332 + res = found.invoke(inst);
1.333 + }
1.334 + } catch (Throwable ex) {
1.335 + if (ex instanceof InvocationTargetException) {
1.336 + ex = ((InvocationTargetException) ex).getTargetException();
1.337 + }
1.338 + if (ex instanceof InterruptedException) {
1.339 + throw (InterruptedException)ex;
1.340 + }
1.341 + res = ex.getClass().getName() + ":" + ex.getMessage();
1.342 + }
1.343 + } else {
1.344 + res = "Can't find method " + method + " in " + clazz;
1.345 + }
1.346 + return res;
1.347 + }
1.348 +
1.349 + @JavaScriptBody(args = "s", body = "return eval('(' + s + ')');")
1.350 + private static native Object toJSON(String s);
1.351 +
1.352 + @JavaScriptBody(args = {"p", "d"}, body =
1.353 + "var v = d[p];\n"
1.354 + + "if (typeof v === 'undefined') return null;\n"
1.355 + + "return v.toString();"
1.356 + )
1.357 + private static native String value(String p, Object d);
1.358 + }
1.359 +}