Examples with FileOrcDataSource io.trino.orc.FileOrcDataSource used on opensource projects

Example 1 with FileOrcDataSource

use of io.trino.orc.FileOrcDataSource in project trino by trinodb.

the class RaptorStorageManager method computeShardStats.

private List<ColumnStats> computeShardStats(File file) {
    try (OrcDataSource dataSource = fileOrcDataSource(orcReaderOptions, file)) {
        OrcReader reader = OrcReader.createOrcReader(dataSource, orcReaderOptions).orElseThrow(() -> new TrinoException(RAPTOR_ERROR, "Data file is empty: " + file));
        ImmutableList.Builder<ColumnStats> list = ImmutableList.builder();
        for (ColumnInfo info : getColumnInfo(reader)) {
            computeColumnStats(reader, info.getColumnId(), info.getType(), typeManager).ifPresent(list::add);
        }
        return list.build();
    } catch (IOException e) {
        throw new TrinoException(RAPTOR_ERROR, "Failed to read file: " + file, e);
    }
}