[Jython-users] Optimal usage of Jython in multi threaded application

[Ingo A. <de...@sy...>]

Hi,

I'm new to Jython and I want to use Jython to script some actions in a
multi threaded application.

The requirements are:
1. thread safety
2. performance

My idea of using Jython is the following:

a) Call: PySystemState.initialize(); once at system startup.

b) Compile the scripts with

String script = ...
StringBufferInputStream is = new StringBufferInputStream(script);
PyObject pyObject = Py.compile(is, "script.py", "exec");

when the script has changed and save the pyObject in a cache.

c) Execute the script (executions happen in more than one thread in
parallel):

doRequest(String param) {
    PyObject pyObject = ... // get pyObject from cache
    PythonInterpreter pi = new PythonInterpreter();
    pi.set("param", param);
    pi.exec(pyObject);
    String s = (String) pi.get("result", String.class);
}

There are not many and no big scripts.

My questions:
- Is this a right way to do it?
- Is this the best way to do it?

Ingo