Project project = getProject(request);
String oldColumnName = request.getParameter("oldColumnName");
String newColumnName = request.getParameter("newColumnName");
AbstractOperation op = new ColumnRenameOperation(oldColumnName, newColumnName);
Process process = op.createProcess(project, new Properties());
performProcessAndRespond(request, response, project, process);
} catch (Exception e) {
respondException(response, e);
}