public Iterator<DataStoreFactorySpi> getAvailableDataSources() {
Set<DataStoreFactorySpi> availableDS = new HashSet<>();
Iterator<DataStoreFactorySpi> it =
getServiceRegistry().getServiceProviders(DataStoreFactorySpi.class, null, null);
ElasticDataStoreFactory dsFactory;
while (it.hasNext()) {
Object ds = it.next();
if (ds instanceof ElasticDataStoreFactory) {
dsFactory = (ElasticDataStoreFactory) ds;
if (dsFactory.isAvailable()) {
availableDS.add(dsFactory);
}
}
}
return availableDS.iterator();
}
