presto-hive/src/main/java/io/prestosql/plugin/hive/s3/PrestoS3FileSystem.java/PrestoS3FileSystem/isGlacierObject
class PrestoS3FileSystem:    private static boolean isGlacierObject(S3ObjectSummary object)
    {
        return Glacier.toString().equals(object.getStorageClass());
    }