use of com.facebook.presto.orc.checkpoint.ByteArrayStreamCheckpoint in project presto by prestodb.
the class ByteArrayOutputStream method recordCheckpoint.
@Override
public void recordCheckpoint() {
checkState(!closed);
checkpoints.add(new ByteArrayStreamCheckpoint(buffer.getCheckpoint()));
}
use of com.facebook.presto.orc.checkpoint.ByteArrayStreamCheckpoint in project presto by prestodb.
the class SliceDirectColumnWriter method getIndexStreams.
@Override
public List<StreamDataOutput> getIndexStreams() 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(column, StreamKind.ROW_INDEX, slice.length(), false);
return ImmutableList.of(new StreamDataOutput(slice, stream));
}
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