/**
   * @param target The target whose result is required
   * @param resultModel The model containing the results
   * @param resultTimestamp The timestamp of the results
   * @return {@code {"rowId": rowId, "0": col0Val, "1": col1Val, ...}} cell values: {@code {"v":
   *     value, "h": [historyVal1, historyVal2, ...]}}
   */
  public Map<String, Object> getTargetResult(
      ComputationTargetSpecification target,
      ViewTargetResultModel resultModel,
      Long resultTimestamp) {
    Integer rowId = getGridStructure().getRowId(target);
    if (rowId == null) {
      // Result not in the grid
      return Collections.emptyMap();
    }

    Map<String, Object> valuesToSend = createTargetResult(rowId);
    // insert nulls into the results for cells which are unsatisfied in the dependency graph
    for (Integer unsatisfiedColId : getGridStructure().getUnsatisfiedCells(rowId)) {
      valuesToSend.put(Integer.toString(unsatisfiedColId), null);
    }

    // Whether or not the row is in the viewport, we may have to store history
    if (resultModel != null) {
      for (String calcConfigName : resultModel.getCalculationConfigurationNames()) {
        for (ComputedValue value : resultModel.getAllValues(calcConfigName)) {
          ValueSpecification specification = value.getSpecification();
          Collection<WebViewGridColumn> columns =
              getGridStructure().getColumns(calcConfigName, specification);
          if (columns == null) {
            // Expect a column for every value
            s_logger.warn(
                "Could not find column for calculation configuration {} with value specification {}",
                calcConfigName,
                specification);
            continue;
          }

          Object originalValue = value.getValue();
          for (WebViewGridColumn column : columns) {
            int colId = column.getId();
            WebGridCell cell = WebGridCell.of(rowId, colId);
            ResultConverter<Object> converter;
            if (originalValue == null) {
              converter = null;
            } else {
              converter =
                  getConverter(
                      column, value.getSpecification().getValueName(), originalValue.getClass());
            }
            Map<String, Object> cellData =
                getCellValue(cell, specification, originalValue, resultTimestamp, converter);
            if (cellData != null) {
              valuesToSend.put(Integer.toString(colId), cellData);
            }
          }
        }
      }
    }
    return valuesToSend;
  }
 @Override
 protected String[][] getRawDataRows(ViewComputationResultModel result) {
   String[][] rows = new String[getGridStructure().getTargets().size()][];
   int columnCount = getGridStructure().getColumns().size() + getAdditionalCsvColumnCount();
   int offset = getCsvDataColumnOffset();
   for (ComputationTargetSpecification target : result.getAllTargets()) {
     Integer rowId = getGridStructure().getRowId(target);
     if (rowId == null) {
       continue;
     }
     ViewTargetResultModel resultModel = result.getTargetResult(target);
     String[] values = new String[columnCount];
     supplementCsvRowData(rowId, target, values);
     rows[rowId] = values;
     for (String calcConfigName : resultModel.getCalculationConfigurationNames()) {
       for (ComputedValue value : resultModel.getAllValues(calcConfigName)) {
         Object originalValue = value.getValue();
         if (originalValue == null) {
           continue;
         }
         ValueSpecification specification = value.getSpecification();
         Collection<WebViewGridColumn> columns =
             getGridStructure().getColumns(calcConfigName, specification);
         if (columns == null) {
           // Expect a column for every value
           s_logger.warn(
               "Could not find column for calculation configuration {} with value specification {}",
               calcConfigName,
               specification);
           continue;
         }
         for (WebViewGridColumn column : columns) {
           int colId = column.getId();
           ResultConverter<Object> converter =
               getConverter(
                   column, value.getSpecification().getValueName(), originalValue.getClass());
           values[offset + colId] =
               converter.convertToText(
                   getConverterCache(), value.getSpecification(), originalValue);
         }
       }
     }
   }
   return rows;
 }