diff -r 3392f250c784 -r ecbd252fd3a7 launcher/src/main/java/org/apidesign/bck2brwsr/launcher/impl/Console.java --- a/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/impl/Console.java Fri Mar 22 16:59:47 2013 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,255 +0,0 @@ -/** - * Back 2 Browser Bytecode Translator - * Copyright (C) 2012 Jaroslav Tulach - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. Look for COPYING file in the top folder. - * If not, see http://opensource.org/licenses/GPL-2.0. - */ -package org.apidesign.bck2brwsr.launcher.impl; - -import java.io.IOException; -import java.io.InputStream; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.lang.reflect.Modifier; -import java.net.URL; -import java.util.Enumeration; -import org.apidesign.bck2brwsr.core.JavaScriptBody; - -/** - * - * @author Jaroslav Tulach - */ -public class Console { - private Console() { - } - static { - turnAssetionStatusOn(); - } - - @JavaScriptBody(args = {"id", "attr"}, body = - "return window.document.getElementById(id)[attr].toString();") - private static native Object getAttr(String id, String attr); - - @JavaScriptBody(args = {"id", "attr", "value"}, body = - "window.document.getElementById(id)[attr] = value;") - private static native void setAttr(String id, String attr, Object value); - - @JavaScriptBody(args = {}, body = "return; window.close();") - private static native void closeWindow(); - - private static void log(String newText) { - String id = "bck2brwsr.result"; - String attr = "value"; - setAttr(id, attr, getAttr(id, attr) + "\n" + newText); - setAttr(id, "scrollTop", getAttr(id, "scrollHeight")); - } - - public static void execute() throws Exception { - String clazz = (String) getAttr("clazz", "value"); - String method = (String) getAttr("method", "value"); - Object res = invokeMethod(clazz, method); - setAttr("bck2brwsr.result", "value", res); - } - - @JavaScriptBody(args = { "url", "callback", "arr" }, body = "" - + "var request = new XMLHttpRequest();\n" - + "request.open('GET', url, true);\n" - + "request.onreadystatechange = function() {\n" - + " if (this.readyState!==4) return;\n" - + " arr[0] = this.responseText;\n" - + " callback.run__V();\n" - + "};" - + "request.send();" - ) - private static native void loadText(String url, Runnable callback, String[] arr) throws IOException; - - public static void harness(String url) throws IOException { - log("Connecting to " + url); - Request r = new Request(url); - } - - private static class Request implements Runnable { - private final String[] arr = { null }; - private final String url; - - private Request(String url) throws IOException { - this.url = url; - loadText(url, this, arr); - } - - @Override - public void run() { - try { - String data = arr[0]; - log("\nGot \"" + data + "\""); - - if (data == null) { - log("Some error exiting"); - closeWindow(); - return; - } - - if (data.isEmpty()) { - log("No data, exiting"); - closeWindow(); - return; - } - - Case c = Case.parseData(data); - if (c.getHtmlFragment() != null) { - setAttr("bck2brwsr.fragment", "innerHTML", c.getHtmlFragment()); - } - log("Invoking " + c.getClassName() + '.' + c.getMethodName() + " as request: " + c.getRequestId()); - - Object result = invokeMethod(c.getClassName(), c.getMethodName()); - - setAttr("bck2brwsr.fragment", "innerHTML", ""); - log("Result: " + result); - - result = encodeURL("" + result); - - log("Sending back: " + url + "?request=" + c.getRequestId() + "&result=" + result); - String u = url + "?request=" + c.getRequestId() + "&result=" + result; - - loadText(u, this, arr); - - } catch (Exception ex) { - log(ex.getClass().getName() + ":" + ex.getMessage()); - } - } - } - - private static String encodeURL(String r) { - StringBuilder sb = new StringBuilder(); - for (int i = 0; i < r.length(); i++) { - int ch = r.charAt(i); - if (ch < 32 || ch == '%' || ch == '+') { - sb.append("%").append(("0" + Integer.toHexString(ch)).substring(0, 2)); - } else { - if (ch == 32) { - sb.append("+"); - } else { - sb.append((char)ch); - } - } - } - return sb.toString(); - } - - static String invoke(String clazz, String method) throws ClassNotFoundException, InvocationTargetException, IllegalAccessException, InstantiationException { - final Object r = invokeMethod(clazz, method); - return r == null ? "null" : r.toString().toString(); - } - - /** Helper method that inspects the classpath and loads given resource - * (usually a class file). Used while running tests in Rhino. - * - * @param name resource name to find - * @return the array of bytes in the given resource - * @throws IOException I/O in case something goes wrong - */ - public static byte[] read(String name) throws IOException { - URL u = null; - Enumeration en = Console.class.getClassLoader().getResources(name); - while (en.hasMoreElements()) { - u = en.nextElement(); - } - if (u == null) { - throw new IOException("Can't find " + name); - } - try (InputStream is = u.openStream()) { - byte[] arr; - arr = new byte[is.available()]; - int offset = 0; - while (offset < arr.length) { - int len = is.read(arr, offset, arr.length - offset); - if (len == -1) { - throw new IOException("Can't read " + name); - } - offset += len; - } - return arr; - } - } - - private static Object invokeMethod(String clazz, String method) - throws ClassNotFoundException, InvocationTargetException, - SecurityException, IllegalAccessException, IllegalArgumentException, - InstantiationException { - Method found = null; - Class c = Class.forName(clazz); - for (Method m : c.getMethods()) { - if (m.getName().equals(method)) { - found = m; - } - } - Object res; - if (found != null) { - try { - if ((found.getModifiers() & Modifier.STATIC) != 0) { - res = found.invoke(null); - } else { - res = found.invoke(c.newInstance()); - } - } catch (Throwable ex) { - res = ex.getClass().getName() + ":" + ex.getMessage(); - } - } else { - res = "Can't find method " + method + " in " + clazz; - } - return res; - } - - @JavaScriptBody(args = {}, body = "vm.desiredAssertionStatus = true;") - private static void turnAssetionStatusOn() { - } - - private static final class Case { - private final Object data; - - private Case(Object data) { - this.data = data; - } - - public static Case parseData(String s) { - return new Case(toJSON(s)); - } - - public String getMethodName() { - return value("methodName", data); - } - - public String getClassName() { - return value("className", data); - } - - public String getRequestId() { - return value("request", data); - } - - public String getHtmlFragment() { - return value("html", data); - } - - @JavaScriptBody(args = "s", body = "return eval('(' + s + ')');") - private static native Object toJSON(String s); - - @JavaScriptBody(args = {"p", "d"}, body = - "var v = d[p];\n" - + "if (typeof v === 'undefined') return null;\n" - + "return v.toString();" - ) - private static native String value(String p, Object d); - } -}