String keyColumnName = request.getParameter("keyColumnName");
String separator = request.getParameter("separator");
String mode = request.getParameter("mode");
AbstractOperation op = new MultiValuedCellSplitOperation(columnName, keyColumnName, separator, mode);
Process process = op.createProcess(project, new Properties());
performProcessAndRespond(request, response, project, process);
} catch (Exception e) {
respondException(response, e);
}