presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/backup/HttpBackupStore.java/HttpBackupStore/shardUri
class HttpBackupStore:    private URI shardUri(UUID uuid)
    {
        return uriBuilderFrom(baseUriSupplier.get())
                .appendPath(uuid.toString().toLowerCase(ENGLISH))
                .build();
    }