java regex to extract an xml element

Pattern p = Pattern.compile("TMCAggrID.*?>\\s*(\\d+)\\s*/TMCAggrID>");
Matcher m = p.matcher(x);
boolean success = m.find();
if (!success) {
log.error("Didn't find TMCAggrID. Perhaps our regex is too strict. Won't save to DB");
return "";
}
String ret = m.group(1);