presto-hive/src/main/java/io/prestosql/plugin/hive/util/InternalHiveSplitFactory.java/InternalHiveSplitFactory/createInternalHiveSplit
class InternalHiveSplitFactory:    public Optional<InternalHiveSplit> createInternalHiveSplit(FileSplit split)
            throws IOException
    {
        FileStatus file = fileSystem.getFileStatus(split.getPath());
        return createInternalHiveSplit(
                split.getPath(),
                fileSystem.getFileBlockLocations(file, split.getStart(), split.getLength()),
                split.getStart(),
                split.getLength(),
                file.getLen(),
                file.getModificationTime(),
                OptionalInt.empty(),
                false);
    }