func init() {
Connectors["graphite"] = func(settings map[string]interface{}) (Connector, error) {
var err error
connector := &GraphiteConnector{
insecureTLS: false,
}
if connector.URL, err = config.GetString(settings, "url", true); err != nil {
return nil, err
}
if connector.insecureTLS, err = config.GetBool(settings, "allow_insecure_tls", false); err != nil {
return nil, err
}
if connector.timeout, err = config.GetFloat(settings, "timeout", false); err != nil {
return nil, err
}
if connector.timeout <= 0 {
connector.timeout = graphiteDefaultTimeout
}
return connector, nil
}
}
func init() {
Connectors["facette"] = func(settings map[string]interface{}) (Connector, error) {
var err error
connector := &FacetteConnector{}
if connector.upstream, err = config.GetString(settings, "upstream", true); err != nil {
return nil, err
}
if connector.timeout, err = config.GetFloat(settings, "timeout", false); err != nil {
return nil, err
}
if connector.timeout <= 0 {
connector.timeout = facetteDefaultTimeout
}
return connector, nil
}
}
func makePlotsResponse(plotSeries map[string][]plot.Series, plotReq *PlotRequest,
graph *library.Graph) (*PlotResponse, error) {
response := &PlotResponse{
ID: graph.ID,
Start: plotReq.startTime.Format(time.RFC3339),
End: plotReq.endTime.Format(time.RFC3339),
Name: graph.Name,
Description: graph.Description,
Title: graph.Title,
Type: graph.Type,
StackMode: graph.StackMode,
UnitType: graph.UnitType,
UnitLegend: graph.UnitLegend,
Modified: graph.Modified,
}
for _, groupItem := range graph.Groups {
var (
groupConsolidate int
groupSeries []plot.Series
err error
)
seriesOptions := make(map[string]map[string]interface{})
for _, seriesItem := range groupItem.Series {
if _, ok := plotSeries[seriesItem.Name]; !ok {
return nil, fmt.Errorf("unable to find plots for `%s' series", seriesItem.Name)
}
for _, plotItem := range plotSeries[seriesItem.Name] {
var optionKey string
// Apply series scale if any
if scale, _ := config.GetFloat(seriesItem.Options, "scale", false); scale != 0 {
plotItem.Scale(plot.Value(scale))
}
// Merge options from group and series
if groupItem.Type == plot.OperTypeAverage || groupItem.Type == plot.OperTypeSum {
optionKey = groupItem.Name
} else {
optionKey = seriesItem.Name
}
seriesOptions[optionKey] = make(map[string]interface{})
for key, value := range groupItem.Options {
seriesOptions[optionKey][key] = value
}
if groupItem.Type != plot.OperTypeAverage && groupItem.Type != plot.OperTypeSum {
for key, value := range seriesItem.Options {
seriesOptions[optionKey][key] = value
}
}
groupSeries = append(groupSeries, plotItem)
}
}
if len(groupSeries) == 0 {
continue
}
// Normalize all series plots on the same time step
groupConsolidate, err = config.GetInt(groupItem.Options, "consolidate", true)
if err != nil {
groupConsolidate = plot.ConsolidateAverage
}
groupSeries, err = plot.Normalize(
groupSeries,
plotReq.startTime,
plotReq.endTime,
plotReq.Sample,
groupConsolidate,
)
if err != nil {
return nil, fmt.Errorf("unable to consolidate series: %s", err)
}
// Perform requested series operations
if groupItem.Type == plot.OperTypeAverage || groupItem.Type == plot.OperTypeSum {
var (
operSeries plot.Series
err error
)
if groupItem.Type == plot.OperTypeAverage {
operSeries, err = plot.AverageSeries(groupSeries)
if err != nil {
return nil, fmt.Errorf("unable to average series: %s", err)
}
} else {
operSeries, err = plot.SumSeries(groupSeries)
if err != nil {
return nil, fmt.Errorf("unable to sum series: %s", err)
}
}
operSeries.Name = groupItem.Name
groupSeries = []plot.Series{operSeries}
}
// Apply group scale if any
if scale, _ := config.GetFloat(groupItem.Options, "scale", false); scale != 0 {
for _, seriesItem := range groupSeries {
seriesItem.Scale(plot.Value(scale))
}
}
for _, seriesItem := range groupSeries {
// Summarize each series (compute min/max/avg/last values)
seriesItem.Summarize(plotReq.Percentiles)
response.Series = append(response.Series, &SeriesResponse{
Name: seriesItem.Name,
StackID: groupItem.StackID,
Plots: seriesItem.Plots,
Summary: seriesItem.Summary,
Options: seriesOptions[seriesItem.Name],
})
}
}
return response, nil
}