private TemplateResult getItem(
DataAccess access, DataTemplate template, Map<String, String> param) throws BaseException {
DataSource dataSource = getDataSource(access, param.get(Helper.Keys.SourceId));
if (dataSource.getState() != DataInformation.DataState.READY)
throw new NotReadyException("The datasource %s is not yet ready.", dataSource.getId());
Item item = dataSource.getItem(param.get(Helper.Keys.ItemId));
return template.transform(item);
}
