public Map<String, Object> getReportParametersMap(
      List<ReportParameterMap> reportParameters, Map<String, Object> origParameters)
      throws ProviderException {
    Map<String, Object> map = new HashMap<String, Object>();

    // if multiple selections, use origParameters; otherwise, use
    // parameters
    Map<String, Object> parameters = new SingleValueMap(origParameters);

    Iterator<ReportParameterMap> iterator = reportParameters.iterator();
    while (iterator.hasNext()) {
      ReportParameterMap rpMap = iterator.next();

      ReportParameter reportParameter = rpMap.getReportParameter();

      // if we are expecting multiple selections, convert the array of
      // parameters
      // into a comma-delimited string so that it can be used in the SQL
      // where
      // clause. Otherwise, just expect a simple String
      if (reportParameter.isMultipleSelect()) {
        Object[] values = (String[]) origParameters.get(reportParameter.getName());

        // load up the StringBuffer with the multiple selections.
        String s = buildMultipleSelectString(reportParameter, values);

        // save the parameter into the Map
        if (rpMap.isRequired() || s.length() > 0) {
          map.put(reportParameter.getName(), s);

          log.debug(reportParameter.getName() + " => " + map.get(reportParameter.getName()));
        }
      } else {
        String value = (String) parameters.get(reportParameter.getName());

        if (value != null) {
          try {
            Object object = parseParameter(reportParameter, value);

            if (rpMap.isRequired() || value.length() > 0) {
              map.put(reportParameter.getName(), object);
            }
          } catch (Exception e) {
            log.warn(
                "Error setting parameter: " + reportParameter.getName() + " : " + e.getMessage());
          }
        }
      }
    }

    // always pass drilldown chart parameter to reports if it exists

    String value = (String) parameters.get(ReportChart.DRILLDOWN_PARAMETER);

    if (value != null)
      map.put(ReportChart.DRILLDOWN_PARAMETER, parameters.get(ReportChart.DRILLDOWN_PARAMETER));

    //

    return map;
  }