// 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
}
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
}