func appMetricSvg(r *http.Request, h http.Header, b *bytes.Buffer) *weft.Result {
a := appMetric{}
v := r.URL.Query()
applicationID := v.Get("applicationID")
var p ts.Plot
resolution := v.Get("resolution")
switch resolution {
case "", "minute":
resolution = "minute"
p.SetXAxis(time.Now().UTC().Add(time.Hour*-12), time.Now().UTC())
p.SetXLabel("12 hours")
case "five_minutes":
p.SetXAxis(time.Now().UTC().Add(time.Hour*-24*3), time.Now().UTC())
p.SetXLabel("48 hours")
case "hour":
p.SetXAxis(time.Now().UTC().Add(time.Hour*-24*28), time.Now().UTC())
p.SetXLabel("4 weeks")
default:
return weft.BadRequest("invalid value for resolution")
}
var err error
if v.Get("yrange") != "" {
y := strings.Split(v.Get("yrange"), `,`)
var ymin, ymax float64
if len(y) != 2 {
return weft.BadRequest("invalid yrange query param.")
}
if ymin, err = strconv.ParseFloat(y[0], 64); err != nil {
return weft.BadRequest("invalid yrange query param.")
}
if ymax, err = strconv.ParseFloat(y[1], 64); err != nil {
return weft.BadRequest("invalid yrange query param.")
}
p.SetYAxis(ymin, ymax)
}
resTitle := resolution
resTitle = strings.Replace(resTitle, "_", " ", -1)
resTitle = strings.Title(resTitle)
var timeRange []time.Time
if timeRange, err = parseTimeRange(v); err != nil {
return weft.InternalServerError(err)
}
switch v.Get("group") {
case "counters":
if res := a.loadCounters(applicationID, resolution, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Metric: Counters - Sum per %s", applicationID, resTitle))
err = ts.MixedAppMetrics.Draw(p, b)
case "timers":
sourceID := v.Get("sourceID")
if sourceID != "" {
if res := a.loadTimersWithSourceID(applicationID, sourceID, resolution, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Source: %s, Metric: Timers - 90th Percentile (ms) per %s",
applicationID, sourceID, resTitle))
} else {
if res := a.loadTimers(applicationID, resolution, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Metric: Timers - 90th Percentile (ms) - Max per %s",
applicationID, resTitle))
}
err = ts.ScatterAppTimers.Draw(p, b)
case "memory":
if res := a.loadMemory(applicationID, resolution, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Metric: Memory (bytes) - Average per %s",
applicationID, resTitle))
err = ts.LineAppMetrics.Draw(p, b)
case "objects":
if res := a.loadAppMetrics(applicationID, resolution, internal.MemHeapObjects, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Metric: Memory Heap Objects (n) - Average per %s",
applicationID, resTitle))
err = ts.LineAppMetrics.Draw(p, b)
case "routines":
if res := a.loadAppMetrics(applicationID, resolution, internal.Routines, timeRange, &p); !res.Ok {
return res
}
p.SetTitle(fmt.Sprintf("Application: %s, Metric: Routines (n) - Average per %s",
applicationID, resTitle))
err = ts.LineAppMetrics.Draw(p, b)
default:
return weft.BadRequest("invalid value for type")
}
if err != nil {
return weft.InternalServerError(err)
}
return &weft.StatusOK
}