Re: [Jython-users] jsr223 and jython

[Cabler, A. <Ada...@me...>]

I am doing something similar, except I am using the classpath to locate
my module where you are pointing to a stream.  Here is the code I'm
using to replace the __tojava__ call:

ScriptEngine engine = new ScriptEngineManager()
	
.getEngineByName("python"); 
//call import or whatever here
Class o = (Class) engine.get(name);
Object ni = o.getConstructors()[0].newInstance(null);
MyFcn u = (MyFcn) ni;  //MyFcn is an interface implemented by the python
class

-----Original Message-----
From: Anamitra Bhattacharyya [mailto:ana...@ya...] 
Sent: Tuesday, November 24, 2009 7:48 AM
To: jyt...@li...
Subject: [Jython-users] jsr223 and jython

Hi
I am trying to figure out if there is a jsr223 way to use this jyhton
feature where I can use jython to extend a java class. I am looking at
the Invocable interface in jsr223 and I am not sure if that has all the
features to pull this. Below is the code snippet [jython specific] that
I use today to do this:


	public Object loadScriptAsJAVAObject(Class objectClass,
InputStream script, String scriptClassName, Object[] args)
	{
		PySystemState sys = Py.getSystemState();
		if(sys==null)
		{
			sys = new PySystemState(); 
		}
        sys.setClassLoader(getClass().getClassLoader()); 
        PythonInterpreter interpreter = new PythonInterpreter(null,
sys); 


        interpreter.execfile(script);
        PyObject scriptClass = interpreter.get(scriptClassName);

        PyObject scriptObject = scriptClass._jcall(args);
        return scriptObject.__tojava__(objectClass);
	}


I am not sure how to model this using jsr223. Any pointers is
appreciated.

thanks
Anamitra



      

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