Examples with ByteArrayStreamCheckpoint io.prestosql.orc.checkpoint.ByteArrayStreamCheckpoint used on opensource projects

Example 1 with ByteArrayStreamCheckpoint

use of io.prestosql.orc.checkpoint.ByteArrayStreamCheckpoint in project hetu-core by openlookeng.

the class ByteArrayOutputStream method recordCheckpoint.

@Override
public void recordCheckpoint() {
    checkState(!closed);
    checkpoints.add(new ByteArrayStreamCheckpoint(buffer.getCheckpoint()));
}

Example 2 with ByteArrayStreamCheckpoint

use of io.prestosql.orc.checkpoint.ByteArrayStreamCheckpoint in project hetu-core by openlookeng.

the class SliceDirectColumnWriter method getIndexStreams.

@Override
public List<StreamDataOutput> getIndexStreams(CompressedMetadataWriter metadataWriter) throws IOException {
    checkState(closed);
    ImmutableList.Builder<RowGroupIndex> rowGroupIndexes = ImmutableList.builder();
    List<LongStreamCheckpoint> lengthCheckpoints = lengthStream.getCheckpoints();
    List<ByteArrayStreamCheckpoint> dataCheckpoints = dataStream.getCheckpoints();
    Optional<List<BooleanStreamCheckpoint>> presentCheckpoints = presentStream.getCheckpoints();
    for (int i = 0; i < rowGroupColumnStatistics.size(); i++) {
        int groupId = i;
        ColumnStatistics columnStatistics = rowGroupColumnStatistics.get(groupId);
        LongStreamCheckpoint lengthCheckpoint = lengthCheckpoints.get(groupId);
        ByteArrayStreamCheckpoint dataCheckpoint = dataCheckpoints.get(groupId);
        Optional<BooleanStreamCheckpoint> presentCheckpoint = presentCheckpoints.map(checkpoints -> checkpoints.get(groupId));
        List<Integer> positions = createSliceColumnPositionList(compressed, lengthCheckpoint, dataCheckpoint, presentCheckpoint);
        rowGroupIndexes.add(new RowGroupIndex(positions, columnStatistics));
    }
    Slice slice = metadataWriter.writeRowIndexes(rowGroupIndexes.build());
    Stream stream = new Stream(columnId, StreamKind.ROW_INDEX, slice.length(), false);
    return ImmutableList.of(new StreamDataOutput(slice, stream));
}