class DataStore implements DataCacheProvider, RolesProvider {

    void addPublicKeys(Map<String, String> publicKeyMap) {
        
        if (publicKeyMap == null || publicKeyMap.isEmpty()) {
            return;
        }
        
        for (Map.Entry<String, String> entry : publicKeyMap.entrySet()) {
            publicKeyCache.put(entry.getKey(), entry.getValue());
        }
    }

    public  DataStore(ChangeLogStore clogStore, CloudStore cloudStore);

}