Examples of io.druid.segment.StorageAdapter

 */
public class SelectQueryEngine
{
  public Sequence<Result<SelectResultValue>> process(final SelectQuery query, final Segment segment)
  {
    final StorageAdapter adapter = segment.asStorageAdapter();


    if (adapter == null) {
      throw new ISE(
          "Null storage adapter found. Probably trying to issue a query against a segment being memory unmapped."
      );
    }


    final Iterable<String> dims;
    if (query.getDimensions() == null || query.getDimensions().isEmpty()) {
      dims = adapter.getAvailableDimensions();
    } else {
      dims = query.getDimensions();
    }


    final Iterable<String> metrics;
    if (query.getMetrics() == null || query.getMetrics().isEmpty()) {
      metrics = adapter.getAvailableMetrics();
    } else {
      metrics = query.getMetrics();
    }


    return QueryRunnerHelper.makeCursorBasedQuery(

      }


      return makeReturnResult(limit, retVal);
    }


    final StorageAdapter adapter = segment.asStorageAdapter();


    if (adapter == null) {
      log.makeAlert("WTF!? Unable to process search query on segment.")
         .addData("segment", segment.getIdentifier())
         .addData("query", query).emit();
      throw new ISE(
          "Null storage adapter found. Probably trying to issue a query against a segment being memory unmapped."
      );
    }


    final Iterable<String> dimsToSearch;
    if (dimensions == null || dimensions.isEmpty()) {
      dimsToSearch = adapter.getAvailableDimensions();
    } else {
      dimsToSearch = dimensions;
    }


    final Sequence<Cursor> cursors = adapter.makeCursors(filter, segment.getDataInterval(), QueryGranularity.ALL);


    final TreeSet<SearchHit> retVal = cursors.accumulate(
        Sets.newTreeSet(query.getSort().getComparator()),
        new Accumulator<TreeSet<SearchHit>, Cursor>()
        {

Examples of io.druid.segment.StorageAdapter

Related Classes of io.druid.segment.StorageAdapter