class BucketTopologyHelper {

    public Set<String> listContainerNames(String fileBucketId) {
        return this.containerToFileBucketMap.entrySet().stream()
            .filter(entry -> entry.getValue().equals(fileBucketId))
            .map(entry -> ContainerUtils
                .buildContainerName(entry.getKey().getRight(), entry.getKey().getLeft().toString()))
            .collect(Collectors.toSet());
    }

    public  BucketTopologyHelper(TapeLibraryTopologyConfiguration configuration);

}