# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1355741928 -3600
# Node ID 60f9aad1273181dcac6e9365ad4ccc5691e3554e
# Parent  4928b51565b21d7e573bf66764dbfd1d63a7d2bf
Using URL.getContent to communicate with the launcher and execute two testing methods

diff -r 4928b51565b2 -r 60f9aad12731 emul/src/main/java/java/net/URL.java
--- a/emul/src/main/java/java/net/URL.java	Mon Dec 17 09:57:22 2012 +0100
+++ b/emul/src/main/java/java/net/URL.java	Mon Dec 17 11:58:48 2012 +0100
@@ -27,6 +27,7 @@
 
 import java.io.IOException;
 import java.io.InputStream;
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
 
 /**
  * Class <code>URL</code> represents a Uniform Resource
@@ -964,9 +965,16 @@
      * @see        java.net.URLConnection#getContent()
      */
     public final Object getContent() throws java.io.IOException {
-        throw new IOException();
-//        return openConnection().getContent();
+        return loadText(toExternalForm());
     }
+    
+    @JavaScriptBody(args = "url", body = ""
+        + "var request = new XMLHttpRequest();\n"
+        + "request.open('GET', url, false);\n"
+        + "request.send();\n"
+        + "return request.responseText;\n"
+    )
+    private static native String loadText(String url) throws IOException;
 
     /**
      * Gets the contents of this URL. This method is a shorthand for:
@@ -984,8 +992,12 @@
      */
     public final Object getContent(Class[] classes)
     throws java.io.IOException {
-        throw new IOException();
-//        return openConnection().getContent(classes);
+        for (Class<?> c : classes) {
+            if (c == String.class) {
+                return getContent();
+            }
+        }
+        return null;
     }
 
     static URLStreamHandler getURLStreamHandler(String protocol) {
diff -r 4928b51565b2 -r 60f9aad12731 launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java
--- a/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java	Mon Dec 17 09:57:22 2012 +0100
+++ b/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java	Mon Dec 17 11:58:48 2012 +0100
@@ -25,6 +25,7 @@
 import java.net.URI;
 import java.net.URL;
 import java.util.Enumeration;
+import java.util.concurrent.CountDownLatch;
 import static org.apidesign.bck2brwsr.launcher.Bck2BrwsrLauncher.copyStream;
 import org.apidesign.vm4brwsr.Bck2Brwsr;
 import org.glassfish.grizzly.PortRange;
@@ -40,6 +41,12 @@
  */
 public class Bck2BrwsrLauncher {
     public static void main( String[] args ) throws Exception {
+        final Case[] cases = { 
+            new Case("org.apidesign.bck2brwsr.launcher.Console", "welcome"),
+            new Case("org.apidesign.bck2brwsr.launcher.Console", "multiply")
+        };
+        final CountDownLatch wait = new CountDownLatch(1);
+        
         HttpServer server = HttpServer.createSimpleServer(".", new PortRange(8080, 65535));
         final ClassLoader loader = Bck2BrwsrLauncher.class.getClassLoader();
         
@@ -70,13 +77,28 @@
             int cnt;
             @Override
             public void service(Request request, Response response) throws Exception {
+                String id = request.getParameter("request");
+                String value = request.getParameter("result");
+                if (id != null && value != null) {
+                    value = value.replace("%20", " ");
+                    cases[Integer.parseInt(id)].result = value;
+                }
+                
+                if (cnt >= cases.length) {
+                    response.getWriter().write("");
+                    wait.countDown();
+                    cnt = 0;
+                    return;
+                }
+                
                 response.getWriter().write("{"
-                    + "className: 'org.apidesign.bck2brwsr.launcher.Console',"
-                    + "methodName: 'welcome',"
+                    + "className: '" + cases[cnt].className + "', "
+                    + "methodName: '" + cases[cnt].methodName + "', "
                     + "request: " + cnt
                     + "}");
+                cnt++;
             }
-        }, "execute/data");
+        }, "/data");
         conf.addHttpHandler(new Page("harness.xhtml"), "/execute");
         
         server.start();
@@ -93,10 +115,14 @@
             Runtime.getRuntime().exec(cmd).waitFor();
         }
         
-        System.in.read();
+        wait.await();
+        
+        for (Case c : cases) {
+            System.err.println(c.className + "." + c.methodName + " = " + c.result);
+        }
     }
     
-    static void copyStream(InputStream is, OutputStream os, String... params) throws IOException {
+    static void copyStream(InputStream is, OutputStream os, String baseURL, String... params) throws IOException {
         for (;;) {
             int ch = is.read();
             if (ch == -1) {
@@ -104,6 +130,9 @@
             }
             if (ch == '$') {
                 int cnt = is.read() - '0';
+                if (cnt == 'U' - '0') {
+                    os.write(baseURL.getBytes());
+                }
                 if (cnt < params.length) {
                     os.write(params[cnt].getBytes());
                 }
@@ -127,7 +156,7 @@
             response.setContentType("text/html");
             OutputStream os = response.getOutputStream();
             InputStream is = Bck2BrwsrLauncher.class.getResourceAsStream(resource);
-            copyStream(is, os, args);
+            copyStream(is, os, request.getRequestURL().toString(), args);
         }
     }
 
@@ -210,4 +239,15 @@
             w.append("\n]");
         }
     }
+    
+    private static final class Case {
+        final String className;
+        final String methodName;
+        String result;
+
+        public Case(String className, String methodName) {
+            this.className = className;
+            this.methodName = methodName;
+        }
+    }
 }
diff -r 4928b51565b2 -r 60f9aad12731 launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java
--- a/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java	Mon Dec 17 09:57:22 2012 +0100
+++ b/launcher/src/main/java/org/apidesign/bck2brwsr/launcher/Console.java	Mon Dec 17 11:58:48 2012 +0100
@@ -17,7 +17,6 @@
  */
 package org.apidesign.bck2brwsr.launcher;
 
-import java.io.InputStream;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.URL;
@@ -29,13 +28,11 @@
  */
 public class Console {
     public static String welcome() {
-        final String msg = "Hello from Bck2Brwsr!";
-        alert(msg);
-        return msg;
+        return "HellofromBck2Brwsr";
     }
-    
-    @JavaScriptBody(args = "msg", body = "alert(msg);")
-    private static native void alert(String msg);
+    public static String multiply() {
+        return String.valueOf(Integer.MAX_VALUE / 2 + Integer.MAX_VALUE);
+    }
     
     @JavaScriptBody(args = {"id", "attr"}, body = 
         "return window.document.getElementById(id)[attr].toString();")
@@ -44,6 +41,10 @@
     @JavaScriptBody(args = {"id", "attr", "value"}, body = 
         "window.document.getElementById(id)[attr] = value;")
     private static native void setAttr(String id, String attr, Object value);
+
+    private static void addAttr(String id, String attr, String newText) {
+        setAttr(id, attr, getAttr(id, attr) + "\n" + newText);
+    }
     
     public static void execute() throws Exception {
         String clazz = (String) getAttr("clazz", "value");
@@ -52,13 +53,41 @@
         setAttr("result", "value", res);
     }
     
-    public static void harness() {
+    public static void harness(String url) {
+        setAttr("result", "value", "Connecting to " + url);
         try {
-            URL u = new URL("/execute/data");
-            String data = (String) u.getContent(new Class[] { String.class });
-            setAttr("result", "value", data);
+            URL u = new URL(url);
+            for (;;) {
+                String data = (String) u.getContent(new Class[] { String.class });
+                addAttr("result", "value", data);
+                if (data.isEmpty()) {
+                    addAttr("result", "value", "No data, exiting");
+                    break;
+                }
+                
+                Case c = Case.parseData(data);
+                addAttr("result", "value", "className: " + c.getClassName());
+                addAttr("result", "value", "methodName: " + c.getMethodName());
+                addAttr("result", "value", "request: " + c.getRequestId());
+
+                Object result = invokeMethod(c.getClassName(), c.getMethodName());
+
+                addAttr("result", "value", "result: " + result);
+                
+                String toSend;
+                if (result == null) {
+                    toSend = "null";
+                } else {
+                    toSend = result.toString();
+                }
+                
+                addAttr("result", "value", "Sending back: " + url + "?request=" + c.getRequestId() + "&result=" + toSend);
+                u = new URL(url + "?request=" + c.getRequestId() + "&result=" + toSend);
+            }
+            
+            
         } catch (Exception ex) {
-            setAttr("result", "value", ex.getMessage());
+            addAttr("result", "value", ex.getMessage());
         }
     }
 
@@ -80,4 +109,34 @@
         }
         return res;
     }
+    
+    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);
+        }
+        
+        @JavaScriptBody(args = "s", body = "return eval('(' + s + ')');")
+        private static native Object toJSON(String s);
+        
+        @JavaScriptBody(args = {"p", "d"}, body = "return d[p].toString();")
+        private static native String value(String p, Object d);
+    }
 }
diff -r 4928b51565b2 -r 60f9aad12731 launcher/src/main/resources/org/apidesign/bck2brwsr/launcher/harness.xhtml
--- a/launcher/src/main/resources/org/apidesign/bck2brwsr/launcher/harness.xhtml	Mon Dec 17 09:57:22 2012 +0100
+++ b/launcher/src/main/resources/org/apidesign/bck2brwsr/launcher/harness.xhtml	Mon Dec 17 11:58:48 2012 +0100
@@ -33,7 +33,7 @@
         </textarea>
         
         <script type="text/javascript">
-            vm.loadClass('org.apidesign.bck2brwsr.launcher.Console').harness__V();
+            vm.loadClass('org.apidesign.bck2brwsr.launcher.Console').harness__VLjava_lang_String_2('$U/../data');
         </script>
     </body>
 </html>