Dynamic Configuration in PI 7.1

Hi,

We have this UDF working in XI 3.0, to feed file name into message mapping:

DynamicConfiguration conf = (DynamicConfiguration) container.getTransformationParameters().get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);

DynamicConfigurationKey key = DynamicConfigurationKey.create("http://sap.com/xi/XI/System/File", "FileName");

String file = ( TableName );

conf.put(key, file);

we are upgrading to 7.1 and this little thing is not working any more. Can smebody please suggest what to do to get it working in PI 7.1.

Alternatively, is there any other way to fill up 'Dynamic Configuration' in graphical mapping.

Thanks for your help!