/******************************************************************************/
/* File: utils.beh                                                            */
/*                                                                            */
/* Describes a "utilities" class that provides methods for dynamically        */
/* instantiating a class with the specified name, and for invoking methods    */
/* on an object.  It uses metadata about objects and classes provided by the  */
/* java run-time library to achieve this.                                     */
/*                                                                            */
/******************************************************************************/

Utils
{
    {{
    public static Object instantiate(String className)
    {
	Object returnValue = null;
	try
	{
	    Class cl = Class.forName(className);
	    returnValue = cl.newInstance();
	}
	catch (ClassNotFoundException e) { }
	catch (InstantiationException e) { }
	catch (IllegalAccessException e) { }

	return returnValue;
    }

    public static boolean executeSetMethod(Object obj, String methodName,
					   Object arg)
    {
	return executeSetMethod(obj, methodName, arg, arg.getClass().getName());
    }
    public static boolean executeSetMethod(Object obj, String methodName,
					   Object arg, String argClassName)
    {
	try
	{
	    Class objClass = obj.getClass();
	    Class argClass = Class.forName(argClassName);

	    Class argTypes[] = new Class[] {argClass};
	    java.lang.reflect.Method m = objClass.getMethod(methodName,
							    argTypes);
	    Object args[] = new Object[] {arg};

	    m.invoke(obj, args);

	    return true;
	}
	catch (ClassNotFoundException e) { }
	catch (NoSuchMethodException e) { }
	catch (IllegalAccessException e) { }
	catch (java.lang.reflect.InvocationTargetException e) { }

	return false;
    }
    }}
}