Method call

src/core/MultiGetQuery.java:350–395

Iterate through each row of the multi get results, parses out data points (and optional meta data). @return null if no rows were found, otherwise the TreeMap with spans

(final List<GetResultOrException> results)

     * @return null if no rows were found, otherwise the TreeMap with spans
     */
    @Override
    public Object call(final List<GetResultOrException> results) throws Exception {
      mul_get_time = (DateTime.nanoTime() - mul_get_start_time);

      try {
        for (final GetResultOrException result : results) {
          // handle an exception
          if (result.getException() != null) {
            get_exception = result.getException();
            handleException(get_exception);
            close(false);
          }
          if (null != result.getCells()) {
            final ArrayList<KeyValue> row = result.getCells();
            if (row.isEmpty()) {
              continue;
            }
            
            number_pre_filter_data_point.addAndGet(row.size());
            ++mul_get_number_row_fetched;
            mul_get_number_column_fetched += row.size();

            final byte[] key = row.get(0).key();
            final byte[] tsuid_key = UniqueId.getTSUIDFromKey(key, 
                TSDB.metrics_width(), Const.TIMESTAMP_BYTES);

            if (!tsuids.contains(tsuid_key)) {
              LOG.error("Multi getter fetched the wrong row " + result 
                  + " when fetching metric: " + Bytes.pretty(metric));
              continue;
            }
            process(key, row);
          } else {
            // TODO we don't get cells for some get requests. This could be an
            // error or the database just didn't have data. Gotta look into it.
          }
        } // end for
      } catch (Exception e) {
        get_exception = e;
        close(false); 
        return null;
      }

      close(true);
      return null;
    }

    /**
     * Handles processing of row of data into the proper list