Worksheet wk = workspace.getWorksheet(worksheetId);
WebService service = null;
DataSource source = null;
if (!wk.containService()) {
logger.info("The worksheet does not have a service object.");
// return new UpdateContainer(new ErrorUpdate(
// "Error occured while publishing the model. The worksheet does not have a service object."));
} else
service = wk.getMetadataContainer().getService();