@Override
public void init(FilterConfig filterConfig) throws ServletException {
String capsParam = filterConfig.getInitParameter(CAPABILITIES_PARAMETER);
if (capsParam != null) {
for (String nego : capsParam.trim().split(" *\\| *")) {
try {
caps |= Authn.Capabilities.class.getField(nego).getLong(null);
} catch (IllegalArgumentException | IllegalAccessException | NoSuchFieldException ex) {
log.error("Error calculating authn capabilities while accessing constant {}", nego);
}
}
}
AuthenticationProfileRepository.getInstance()
.addObserver(
new Observer() {
@Override
public void update(Observable o, Object arg) {
cacheNegotiatingProfiles();
}
});
cacheNegotiatingProfiles();
}
private synchronized void cacheNegotiatingProfiles() {
schemes = new ArrayList<>();
profiles = new ArrayList<>();
for (AuthenticationProfile profile :
AuthenticationProfileRepository.getInstance().getProfiles()) {
ExtMap authnContext = profile.getAuthn().getContext();
if ((authnContext.<Long>get(Authn.ContextKeys.CAPABILITIES).longValue() & caps) != 0) {
profiles.add(profile);
schemes.addAll(
authnContext.<Collection<String>>get(
Authn.ContextKeys.HTTP_AUTHENTICATION_SCHEME, Collections.<String>emptyList()));
}
}
Collections.sort(
profiles,
new Comparator<AuthenticationProfile>() {
@Override
public int compare(AuthenticationProfile o1, AuthenticationProfile o2) {
return Integer.compare(o1.getNegotiationPriority(), o2.getNegotiationPriority());
}
});
}