Golang CDR.FormatCost示例

// Extracts the value specified by cfgHdr out of cdr
func (cdre *CdrExporter) cdrFieldValue(cdr *engine.CDR, cfgCdrFld *config.CfgCdrField) (string, error) {
	passesFilters := true
	for _, cdfFltr := range cfgCdrFld.FieldFilter {
		if !cdfFltr.FilterPasses(cdr.FieldAsString(cdfFltr)) {
			passesFilters = false
			break
		}
	}
	if !passesFilters { // Not passes filters, ignore this replication
		return "", fmt.Errorf("Filters not passing")
	}
	layout := cfgCdrFld.Layout
	if len(layout) == 0 {
		layout = time.RFC3339
	}
	var retVal string // Concatenate the resulting values
	for _, rsrFld := range cfgCdrFld.Value {
		var cdrVal string
		switch rsrFld.Id {
		case COST_DETAILS: // Special case when we need to further extract cost_details out of logDb
			if cdr.ExtraFields[COST_DETAILS], err = cdre.getCdrCostDetails(cdr.CGRID, cdr.RunID); err != nil {
				return "", err
			} else {
				cdrVal = cdr.FieldAsString(rsrFld)
			}
		case utils.COST:
			cdrVal = cdr.FormatCost(cdre.costShiftDigits, cdre.roundDecimals)
		case utils.USAGE:
			cdrVal = cdr.FormatUsage(layout)
		case utils.SETUP_TIME:
			cdrVal = cdr.SetupTime.Format(layout)
		case utils.ANSWER_TIME: // Format time based on layout
			cdrVal = cdr.AnswerTime.Format(layout)
		case utils.DESTINATION:
			cdrVal = cdr.FieldAsString(rsrFld)
			if cdre.maskLen != -1 && cdre.maskedDestination(cdrVal) {
				cdrVal = MaskDestination(cdrVal, cdre.maskLen)
			}
		default:
			cdrVal = cdr.FieldAsString(rsrFld)
		}
		retVal += cdrVal
	}
	return retVal, nil
}