source: src/test/java/geniusweb/clienttest/JythonObjectFactory.java@ 30

package geniusweb.clienttest;

import org.python.core.Py;
import org.python.core.PyObject;
import org.python.core.PySystemState;

/**
 * Jython Object Factory using PySystemState
 */
public class JythonObjectFactory {

        private final Class interfaceType;
        private final PyObject klass;

        // Constructor obtains a reference to the importer, module, and the class
        // name
        public JythonObjectFactory(PySystemState state, Class interfaceType, String moduleName, String className) {
                this.interfaceType = interfaceType;
                PyObject importer = state.getBuiltins().__getitem__(Py.newString("__import__"));
                PyObject module = importer.__call__(Py.newString(moduleName));
                klass = module.__getattr__(className);
                System.err.println("module=" + module + ",class=" + klass);
        }

        // This constructor passes through to the other constructor
        public JythonObjectFactory(Class interfaceType, String moduleName, String className) {
                this(new PySystemState(), interfaceType, moduleName, className);
        }

        // All of the followng methods return
        // a coerced Jython object based upon the pieces of information
        // that were passed into the factory. The differences are
        // between them are the number of arguments that can be passed
        // in as arguents to the object.

        public Object createObject() {
                return klass.__call__().__tojava__(interfaceType);
        }

        public Object createObject(Object arg1) {
                return klass.__call__(Py.java2py(arg1)).__tojava__(interfaceType);
        }

        public Object createObject(Object arg1, Object arg2) {
                return klass.__call__(Py.java2py(arg1), Py.java2py(arg2)).__tojava__(interfaceType);
        }

        public Object createObject(Object arg1, Object arg2, Object arg3) {
                return klass.__call__(Py.java2py(arg1), Py.java2py(arg2), Py.java2py(arg3)).__tojava__(interfaceType);
        }

        public Object createObject(Object args[], String keywords[]) {
                PyObject convertedArgs[] = new PyObject[args.length];
                for (int i = 0; i < args.length; i++) {
                        convertedArgs[i] = Py.java2py(args[i]);
                }

                return klass.__call__(convertedArgs, keywords).__tojava__(interfaceType);
        }

        public Object createObject(Object... args) {
                return createObject(args, Py.NoKeywords);
        }

}