@Override
public Boolean process(A context) throws Exception {
	if (isEnabled()) {
		Boolean rtn = true;
		Exception ex = null;
		try {
			if (preExecute(context)) {
				rtn = execute(context);
				rtn = rtn && postExecute(context);
			}
		} catch (Exception e) {
			ex = e;
		} finally {
			rtn = handleException(context, ex) && rtn;
		}
	}
	return true;
}