/** Associate Advice to all n-cubes that match the passed in regular expression. */
public static void addAdvice(ApplicationID appId, String wildcard, Advice advice) {
validateAppId(appId);
ConcurrentMap<String, Advice> current = advices.get(appId);
if (current == null) {
current = new ConcurrentHashMap<>();
ConcurrentMap<String, Advice> mapRef = advices.putIfAbsent(appId, current);
if (mapRef != null) {
current = mapRef;
}
}
current.put(advice.getName() + '/' + wildcard, advice);
// Apply newly added advice to any fully loaded (hydrated) cubes.
String regex = StringUtilities.wildcardToRegexString(wildcard);
Map<String, Object> cubes = getCacheForApp(appId);
for (Object value : cubes.values()) {
if (value instanceof NCube) { // apply advice to hydrated cubes
NCube ncube = (NCube) value;
Axis axis = ncube.getAxis("method");
addAdviceToMatchedCube(advice, regex, ncube, axis);
}
}
}
/**
* Apply existing advices loaded into the NCubeManager, to the passed in n-cube. This allows
* advices to be added first, and then let them be applied 'on demand' as an n-cube is loaded
* later.
*
* @param appId ApplicationID
* @param ncube NCube to which all matching advices will be applied.
*/
private static void applyAdvices(ApplicationID appId, NCube ncube) {
final Map<String, Advice> appAdvices = advices.get(appId);
if (MapUtilities.isEmpty(appAdvices)) {
return;
}
for (Map.Entry<String, Advice> entry : appAdvices.entrySet()) {
final Advice advice = entry.getValue();
final String wildcard = entry.getKey().replace(advice.getName() + '/', "");
final String regex = StringUtilities.wildcardToRegexString(wildcard);
final Axis axis = ncube.getAxis("method");
addAdviceToMatchedCube(advice, regex, ncube, axis);
}
}
