# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1381561508 -7200
# Node ID fd2d4ca28bd3ce92b1ab02fdfb401418431d3f00
# Parent  617d62384a9c84cdb43f97f4ac639257cd367a46
If j2js task is used, read the generated bck2brwsr.js in rather than compiling new one during execution

diff -r 617d62384a9c -r fd2d4ca28bd3 launcher/http/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java
--- a/launcher/http/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java	Sat Oct 12 09:03:36 2013 +0200
+++ b/launcher/http/src/main/java/org/apidesign/bck2brwsr/launcher/Bck2BrwsrLauncher.java	Sat Oct 12 09:05:08 2013 +0200
@@ -17,8 +17,14 @@
  */
 package org.apidesign.bck2brwsr.launcher;
 
+import java.io.File;
+import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.net.URL;
+import java.util.logging.Level;
 import org.apidesign.vm4brwsr.Bck2Brwsr;
 
 /**
@@ -45,8 +51,23 @@
                 return loader.get(resource);
             }
         }
-
-        Bck2Brwsr.generate(sb, new R());
+        String b2b = System.getProperty("bck2brwsr.js");
+        if (b2b != null) {
+            LOG.log(Level.INFO, "Serving bck2brwsr.js from {0}", b2b);
+            try (Reader r = new InputStreamReader(new URL(b2b).openStream())) {
+                char[] arr = new char[4096];
+                for (;;) {
+                   int len = r.read(arr);
+                   if (len == -1) {
+                       break;
+                   }
+                   sb.append(arr, 0, len);
+                }
+            }
+        } else {
+            LOG.log(Level.INFO, "Generating bck2brwsr.js from scratch", b2b);
+            Bck2Brwsr.generate(sb, new R());
+        }
         sb.append(
               "(function WrapperVM(global) {"
             + "  function ldCls(res) {\n"
@@ -65,6 +86,7 @@
             + "  };\n"
             + "})(this);\n"
         );
+        LOG.log(Level.INFO, "Serving bck2brwsr.js", b2b);
     }
 
 }
diff -r 617d62384a9c -r fd2d4ca28bd3 rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/BrwsrMojo.java
--- a/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/BrwsrMojo.java	Sat Oct 12 09:03:36 2013 +0200
+++ b/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/BrwsrMojo.java	Sat Oct 12 09:05:08 2013 +0200
@@ -70,12 +70,18 @@
     /** Root of all pages, and files, etc. */
     @Parameter
     private File directory;
+    
+    @Parameter(defaultValue="${project.build.directory}/bck2brwsr.js")
+    private File javascript;
 
     @Override
     public void execute() throws MojoExecutionException {
         if (startpage == null) {
             throw new MojoExecutionException("You have to provide a start page");
         }
+        if (javascript != null && javascript.isFile()) {
+            System.setProperty("bck2brwsr.js", javascript.toURI().toString());
+        }
         try {
             Closeable httpServer;
             if (directory != null) {
diff -r 617d62384a9c -r fd2d4ca28bd3 rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java
--- a/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java	Sat Oct 12 09:03:36 2013 +0200
+++ b/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/Java2JavaScript.java	Sat Oct 12 09:05:08 2013 +0200
@@ -50,7 +50,7 @@
     @Parameter(defaultValue="${project.build.directory}/classes")
     private File classes;
     /** JavaScript file to generate */
-    @Parameter
+    @Parameter(defaultValue="${project.build.directory}/bck2brwsr.js")
     private File javascript;
 
     /** Additional classes that should be pre-compiled into the javascript