Re: Compiling on the fly

Recently I've developed a very simple Nice template
engine (I call it NiceTee).
It's logic is very simple: lines preceded with '%' are
placed as is into the Nice source, other lines
are placed as writeln( "the line" ).
When template is changed, it is automatically
recompiled, and resulting package is loaded
into the custom ClassLoader, with restricted
permissions (sandbox).
Currently I use reflection to instantiate and invoke
the generated template. (It is nothing compared
to hundreds reflection calls Velocity does).

Overall, I have no problems compiling NiceTee
dynamically from the running CMS system.
The only drawback for now is that I can't directly
catch error reports generated by the compiler.

Snipped of my code invoking the compiler:

  println( "compiling..." );
  let String sourcepath = temporary.getAbsolutePath();
  let String[] args = [
    "--sourcepath", sourcepath,
    "--destination", sourcepath,
    "--classpath", notNull( System.getProperty( "java.class.path" ) ),
    this.packageName.toString() ];
  let result = nice.tools.compiler.console.dispatch.compile( args );
  println( 0 == result || 3 == result ? "done!" : "error..." );
  return 0 == result || 3 == result;





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