WorksheetCommandHistoryExecutor wchr = new WorksheetCommandHistoryExecutor(worksheet.getId(), workspace);
try
{
List<CommandTag> tags = new ArrayList<CommandTag>();
tags.add(CommandTag.Transformation);
wchr.executeCommandsByTags(tags, mapping.getWorksheetHistory());
}
catch (CommandException | KarmaException e)
{
logger.error("Unable to execute column transformations", e);
}