Example #1
0
// Get statistics for specified metric
//
// If the arguments are invalid or the server returns an error, the error will
// be set and the other values undefined.
func (c *CloudWatch) GetMetricStatistics(req *GetMetricStatisticsRequest) (result *GetMetricStatisticsResponse, err error) {
	statisticsSet := sets.SSet(req.Statistics...)
	// Kick out argument errors
	switch {
	case req.EndTime.IsZero():
		err = errors.New("No endTime specified")
	case req.StartTime.IsZero():
		err = errors.New("No startTime specified")
	case req.MetricName == "":
		err = errors.New("No metricName specified")
	case req.Period < 60 || req.Period%60 != 0:
		err = errors.New("Period not 60 seconds or a multiple of 60 seconds")
	case len(req.Statistics) < 1:
		err = errors.New("No statistics supplied")
	case validMetricStatistics.Union(statisticsSet).Len() != validMetricStatistics.Len():
		err = errors.New("Invalid statistic values supplied")
	case req.Unit != "" && !validUnits.Member(req.Unit):
		err = errors.New("Unit is not a valid value")
	}
	if err != nil {
		return
	}

	// Serialize all the params
	params := aws.MakeParams("GetMetricStatistics")
	params["EndTime"] = req.EndTime.UTC().Format(time.RFC3339)
	params["StartTime"] = req.StartTime.UTC().Format(time.RFC3339)
	params["MetricName"] = req.MetricName
	params["Period"] = strconv.Itoa(req.Period)
	if req.Unit != "" {
		params["Unit"] = req.Unit
	}

	// Serialize the lists of data
	for i, d := range req.Dimensions {
		prefix := "Dimensions.member." + strconv.Itoa(i+1)
		params[prefix+".Name"] = d.Name
		params[prefix+".Value"] = d.Value
	}
	for i, d := range req.Statistics {
		prefix := "Statistics.member." + strconv.Itoa(i+1)
		params[prefix] = d
	}
	result = new(GetMetricStatisticsResponse)
	err = c.query("GET", "/", params, result)
	return
}
Example #2
0
func (c *CloudWatch) PutMetricData(metrics []MetricDatum) (result *aws.BaseResponse, err error) {
	// Serialize the params
	params := aws.MakeParams("PutMetricData")
	for i, metric := range metrics {
		prefix := "MetricData.member." + strconv.Itoa(i+1)
		if metric.MetricName == "" {
			err = fmt.Errorf("No metric name supplied for metric: %d", i)
			return
		}
		params[prefix+".MetricName"] = metric.MetricName
		if metric.Unit != "" {
			params[prefix+".Unit"] = metric.Unit
		}
		if metric.Value != 0 {
			params[prefix+".Value"] = strconv.FormatFloat(metric.Value, 'E', 10, 64)
		}
		if !metric.Timestamp.IsZero() {
			params[prefix+".Timestamp"] = metric.Timestamp.UTC().Format(time.RFC3339)
		}
		for j, dim := range metric.Dimensions {
			dimprefix := prefix + "Dimensions.member." + strconv.Itoa(j+1)
			params[dimprefix+".Name"] = dim.Name
			params[dimprefix+".Value"] = dim.Value
		}
		for j, stat := range metric.StatisticValues {
			statprefix := prefix + "StatisticValues.member." + strconv.Itoa(j+1)
			params[statprefix+".Maximum"] = strconv.FormatFloat(stat.Maximum, 'E', 10, 64)
			params[statprefix+".Minimum"] = strconv.FormatFloat(stat.Minimum, 'E', 10, 64)
			params[statprefix+".SampleCount"] = strconv.FormatFloat(stat.SampleCount, 'E', 10, 64)
			params[statprefix+".Sum"] = strconv.FormatFloat(stat.Sum, 'E', 10, 64)
		}
	}
	result = new(aws.BaseResponse)
	err = c.query("POST", "/", params, result)
	return
}