# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1355585128 -3600
# Node ID d41cfd77842dca04e3936048bf1be547a78e968d
# Parent  3884815c0629831abb5b744174d3045529639272
Basic sketch of an HTTP server for launching bck2brwsr applications

diff -r 3884815c0629 -r d41cfd77842d launcher/pom.xml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/launcher/pom.xml	Sat Dec 15 16:25:28 2012 +0100
@@ -0,0 +1,36 @@
+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.apidesign</groupId>
+    <artifactId>bck2brwsr</artifactId>
+    <version>0.3-SNAPSHOT</version>
+  </parent>
+  <groupId>org.apidesign.bck2brwsr</groupId>
+  <artifactId>launcher</artifactId>
+  <version>0.3-SNAPSHOT</version>
+  <name>Bck2Brwsr Launcher</name>
+  <url>http://maven.apache.org</url>
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.glassfish.grizzly</groupId>
+      <artifactId>grizzly-http-server</artifactId>
+      <version>2.2.19</version>
+    </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>vm4brwsr</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+  </dependencies>
+</project>
diff -r 3884815c0629 -r d41cfd77842d launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java	Sat Dec 15 16:25:28 2012 +0100
@@ -0,0 +1,124 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * 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;
+
+import java.awt.Desktop;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.net.URI;
+import java.net.URL;
+import java.util.Enumeration;
+import org.apidesign.vm4brwsr.Bck2Brwsr;
+import org.glassfish.grizzly.PortRange;
+import org.glassfish.grizzly.http.server.HttpHandler;
+import org.glassfish.grizzly.http.server.HttpServer;
+import org.glassfish.grizzly.http.server.NetworkListener;
+import org.glassfish.grizzly.http.server.Request;
+import org.glassfish.grizzly.http.server.Response;
+import org.glassfish.grizzly.http.server.ServerConfiguration;
+
+/**
+ * Lightweight server to launch Bck2Brwsr applications in real browser.
+ */
+public class Bck2BrwsrLauncher {
+    public static void main( String[] args ) throws Exception {
+        HttpServer server = HttpServer.createSimpleServer(".", new PortRange(8080, 65535));
+        final ClassLoader loader = Bck2BrwsrLauncher.class.getClassLoader();
+        
+        final ServerConfiguration conf = server.getServerConfiguration();
+        conf.addHttpHandler(new HttpHandler() {
+            @Override
+            public void service(Request request, Response response) throws Exception {
+                response.setContentType("text/html");
+                OutputStream os = response.getOutputStream();
+                InputStream is = Bck2BrwsrLauncher.class.getResourceAsStream("console.xhtml");
+                for (;;) {
+                    int ch = is.read();
+                    if (ch == -1) {
+                        break;
+                    }
+                    os.write(ch);
+                }
+            }
+        }, "/console");
+        conf.addHttpHandler(new HttpHandler() {
+            @Override
+            public void service(Request request, Response response) throws Exception {
+                response.setCharacterEncoding("UTF-8");
+                response.setContentType("text/javascript");
+                Bck2Brwsr.generate(response.getWriter(), loader);
+            }
+        }, "/bck2brwsr.js");
+        conf.addHttpHandler(new HttpHandler() {
+            @Override
+            public void service(Request request, Response response) throws Exception {
+                String res = request.getHttpHandlerPath();
+                if (res.startsWith("/")) {
+                    res = res.substring(1);
+                }
+                Enumeration<URL> en = loader.getResources(res);
+                URL u = null;
+                while (en.hasMoreElements()) {
+                    u = en.nextElement();
+                }
+                if (u == null) {
+                    response.setError();
+                    response.setDetailMessage("Can't find resource " + res);
+                }
+                response.setContentType("text/javascript");
+                InputStream is = u.openStream();
+                Writer w = response.getWriter();
+                w.append("[");
+                for (int i = 0;; i++) {
+                    int b = is.read();
+                    if (b == -1) {
+                        break;
+                    }
+                    if (i > 0) {
+                        w.append(", ");
+                    }
+                    if (i % 20 == 0) {
+                        w.write("\n");
+                    }
+                    if (b > 127) {
+                        b = b - 256;
+                    }
+                    w.append(Integer.toString(b));
+                }
+                w.append("\n]");
+            }
+        }, "/classes/");
+        
+        server.start();
+        NetworkListener listener = server.getListeners().iterator().next();
+        int port = listener.getPort();
+        
+        URI uri = new URI("http://localhost:" + port + "/console");
+        try {
+            Desktop.getDesktop().browse(uri);
+        } catch (UnsupportedOperationException ex) {
+            String[] cmd = { 
+                "xdg-open", uri.toString()
+            };
+            Runtime.getRuntime().exec(cmd).waitFor();
+        }
+        
+        System.in.read();
+    }
+}
diff -r 3884815c0629 -r d41cfd77842d launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java	Sat Dec 15 16:25:28 2012 +0100
@@ -0,0 +1,65 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * 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;
+
+import java.lang.reflect.Method;
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class Console {
+    public static String welcome() {
+        final String msg = "Hello from Bck2Brwsr!";
+        alert(msg);
+        return msg;
+    }
+    
+    @JavaScriptBody(args = "msg", body = "alert(msg);")
+    private static native void alert(String msg);
+    
+    @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);
+    
+    public static void execute() throws Exception {
+        String clazz = (String) getAttr("clazz", "value");
+        String method = (String) getAttr("method", "value");
+
+        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) {
+            res = found.invoke(null);
+        } else {
+            res = "Can't find method " + method + " in " + clazz;
+        }
+        
+        setAttr("result", "value", res);
+    }
+}
diff -r 3884815c0629 -r d41cfd77842d launcher/src/main/resources/org/apidesign/bck2brwsr/launcher/console.xhtml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/launcher/src/main/resources/org/apidesign/bck2brwsr/launcher/console.xhtml	Sat Dec 15 16:25:28 2012 +0100
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Back 2 Browser Bytecode Translator
+    Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+
+    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.
+
+-->
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+    <head>
+        <title>Bck2Brwsr Launcher</title>
+    </head>
+    <body>
+        <script src="bck2brwsr.js"></script>
+        <script type="text/javascript">
+            function ldCls(res) {
+                var request = new XMLHttpRequest();
+                request.open("GET", "classes/" + res, false);
+                request.send();
+                var arr = eval('(' + request.responseText + ')');
+                return arr;
+            }
+            var vm = new bck2brwsr(ldCls);
+        </script>
+        <h1>Bck2Browser Console Launcher</h1>
+        
+        Class Name:
+        <input id="clazz" value="org.apidesign.bck2brwsr.launcher.Console"/>
+        <br/>
+        Method Name:
+
+        <input id="method" value="welcome"/>
+        <br/>
+        
+        <button onclick="vm.loadClass('org.apidesign.bck2brwsr.launcher.Console').execute__V();">Execute!</button>
+        
+        <hr/>
+        <textarea id="result" rows="10" cols="80">
+        </textarea>
+    </body>
+</html>
diff -r 3884815c0629 -r d41cfd77842d pom.xml
--- a/pom.xml	Sat Dec 15 08:17:45 2012 +0100
+++ b/pom.xml	Sat Dec 15 16:25:28 2012 +0100
@@ -14,6 +14,7 @@
     <module>javaquery</module>
     <module>javap</module>
     <module>benchmarks</module>
+    <module>launcher</module>
   </modules>
   <licenses>
       <license>
@@ -109,3 +110,4 @@
       <license>COPYING</license>
   </properties>
 </project>
+