presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/RaptorPageSourceProvider.java/RaptorPageSourceProvider/RaptorPageSourceProvider
class RaptorPageSourceProvider:    @Inject
    public RaptorPageSourceProvider(StorageManager storageManager)
    {
        this.storageManager = requireNonNull(storageManager, "storageManager is null");
    }