@Reference(dynamic = true, multiple = true, optional = true)
public void addProvider(ObservationProvider<?> provider, Map<String, Object> properties) {
String type = parseType(properties);
if (type != null) {
providers.put(provider, type);
provider.subscribe(this);
}
}
public void removeProvider(ObservationProvider<?> provider) {
if (providers.remove(provider) != null) {
provider.unsubscribe(this);
}
}