作者：jareks
项目：bosu
func bandTSDB(e *State, T miniprofiler.Timer, query, duration, period string, num float64, rfunc func(*Results, *opentsdb.Response, time.Duration) error) (r *Results, err error) {
r = new(Results)
r.IgnoreOtherUnjoined = true
r.IgnoreUnjoined = true
T.Step("band", func(T miniprofiler.Timer) {
var d, p opentsdb.Duration
d, err = opentsdb.ParseDuration(duration)
if err != nil {
return
}
p, err = opentsdb.ParseDuration(period)
if err != nil {
return
}
if num < 1 || num > 100 {
err = fmt.Errorf("num out of bounds")
}
var q *opentsdb.Query
q, err = opentsdb.ParseQuery(query, e.tsdbContext.Version())
if err != nil {
return
}
if !e.tsdbContext.Version().FilterSupport() {
if err = e.Search.Expand(q); err != nil {
return
}
}
req := opentsdb.Request{
Queries: []*opentsdb.Query{q},
}
now := e.now
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
if err = req.SetTime(e.now); err != nil {
return
}
for i := 0; i < int(num); i++ {
now = now.Add(time.Duration(-p))
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
var s opentsdb.ResponseSet
s, err = timeTSDBRequest(e, T, &req)
if err != nil {
return
}
for _, res := range s {
if e.squelched(res.Tags) {
continue
}
//offset := e.now.Sub(now.Add(time.Duration(p-d)))
offset := e.now.Sub(now)
if err = rfunc(r, res, offset); err != nil {
return
}
}
}
})
return
}
作者：jareks
项目：bosu
func Query(e *State, T miniprofiler.Timer, query, sduration, eduration string) (r *Results, err error) {
r = new(Results)
q, err := opentsdb.ParseQuery(query, e.tsdbContext.Version())
if q == nil && err != nil {
return
}
if !e.tsdbContext.Version().FilterSupport() {
if err = e.Search.Expand(q); err != nil {
return
}
}
sd, err := opentsdb.ParseDuration(sduration)
if err != nil {
return
}
req := opentsdb.Request{
Queries: []*opentsdb.Query{q},
Start: fmt.Sprintf("%s-ago", sd),
}
if eduration != "" {
var ed opentsdb.Duration
ed, err = opentsdb.ParseDuration(eduration)
if err != nil {
return
}
req.End = fmt.Sprintf("%s-ago", ed)
}
var s opentsdb.ResponseSet
if err = req.SetTime(e.now); err != nil {
return
}
s, err = timeTSDBRequest(e, T, &req)
if err != nil {
return
}
for _, res := range s {
if e.squelched(res.Tags) {
continue
}
values := make(Series)
for k, v := range res.DPS {
i, err := strconv.ParseInt(k, 10, 64)
if err != nil {
return nil, err
}
values[time.Unix(i, 0).UTC()] = float64(v)
}
r.Results = append(r.Results, &Result{
Value: values,
Group: res.Tags,
})
}
return
}
作者：pd
项目：bosu
func tagQuery(args []parse.Node) (parse.Tags, error) {
n := args[0].(*parse.StringNode)
q, err := opentsdb.ParseQuery(n.Text)
if q == nil && err != nil {
return nil, err
}
t := make(parse.Tags)
for k := range q.Tags {
t[k] = struct{}{}
}
return t, nil
}
作者：jareks
项目：bosu
func tagQuery(args []parse.Node) (parse.Tags, error) {
n := args[0].(*parse.StringNode)
// Since all 2.1 queries are valid 2.2 queries, at this time
// we can just use 2.2 to parse to identify group by tags
q, err := opentsdb.ParseQuery(n.Text, opentsdb.Version2_2)
if q == nil && err != nil {
return nil, err
}
t := make(parse.Tags)
for k := range q.GroupByTags {
t[k] = struct{}{}
}
return t, nil
}
作者：jareks
项目：bosu
func Over(e *State, T miniprofiler.Timer, query, duration, period string, num float64) (r *Results, err error) {
r = new(Results)
r.IgnoreOtherUnjoined = true
r.IgnoreUnjoined = true
T.Step("band", func(T miniprofiler.Timer) {
var d, p opentsdb.Duration
d, err = opentsdb.ParseDuration(duration)
if err != nil {
return
}
p, err = opentsdb.ParseDuration(period)
if err != nil {
return
}
if num < 1 || num > 100 {
err = fmt.Errorf("num out of bounds")
}
var q *opentsdb.Query
q, err = opentsdb.ParseQuery(query, e.tsdbContext.Version())
if err != nil {
return
}
if !e.tsdbContext.Version().FilterSupport() {
if err = e.Search.Expand(q); err != nil {
return
}
}
req := opentsdb.Request{
Queries: []*opentsdb.Query{q},
}
now := e.now
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
for i := 0; i < int(num); i++ {
var s opentsdb.ResponseSet
s, err = timeTSDBRequest(e, T, &req)
if err != nil {
return
}
offset := e.now.Sub(now)
for _, res := range s {
if e.squelched(res.Tags) {
continue
}
values := make(Series)
a := &Result{Group: res.Tags.Merge(opentsdb.TagSet{"shift": offset.String()})}
for k, v := range res.DPS {
i, err := strconv.ParseInt(k, 10, 64)
if err != nil {
return
}
values[time.Unix(i, 0).Add(offset).UTC()] = float64(v)
}
a.Value = values
r.Results = append(r.Results, a)
}
now = now.Add(time.Duration(-p))
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
}
})
return
}
作者：Skyscanne
项目：bosu
func bandRangeTSDB(e *State, T miniprofiler.Timer, query, rangeStart, rangeEnd, period string, num float64, rfunc func(*Results, *opentsdb.Response) error) (r *Results, err error) {
r = new(Results)
r.IgnoreOtherUnjoined = true
r.IgnoreUnjoined = true
T.Step("bandRange", func(T miniprofiler.Timer) {
var from, to, p opentsdb.Duration
from, err = opentsdb.ParseDuration(rangeStart)
if err != nil {
return
}
to, err = opentsdb.ParseDuration(rangeEnd)
if err != nil {
return
}
p, err = opentsdb.ParseDuration(period)
if err != nil {
return
}
if num < 1 || num > 100 {
err = fmt.Errorf("num out of bounds")
}
var q *opentsdb.Query
q, err = opentsdb.ParseQuery(query, e.tsdbContext.Version())
if err != nil {
return
}
if err = e.Search.Expand(q); err != nil {
return
}
req := opentsdb.Request{
Queries: []*opentsdb.Query{q},
}
now := e.now
req.End = now.Unix()
st := now.Add(time.Duration(from)).Unix()
req.Start = st
if err = req.SetTime(e.now); err != nil {
return
}
for i := 0; i < int(num); i++ {
now = now.Add(time.Duration(-p))
end := now.Add(time.Duration(-to)).Unix()
req.End = &end
st := now.Add(time.Duration(-from)).Unix()
req.Start = &st
var s opentsdb.ResponseSet
s, err = timeTSDBRequest(e, T, &req)
if err != nil {
return
}
for _, res := range s {
if e.squelched(res.Tags) {
continue
}
if err = rfunc(r, res); err != nil {
return
}
}
}
})
return
}
作者：reduxd
项目：grafan
func Band(e *State, T miniprofiler.Timer, query, duration, period string, num float64) (r *Results, err error) {
r = new(Results)
r.IgnoreOtherUnjoined = true
r.IgnoreUnjoined = true
T.Step("band", func(T miniprofiler.Timer) {
var d, p opentsdb.Duration
d, err = opentsdb.ParseDuration(duration)
if err != nil {
return
}
p, err = opentsdb.ParseDuration(period)
if err != nil {
return
}
if num < 1 || num > 100 {
err = fmt.Errorf("expr: Band: num out of bounds")
}
q, err := opentsdb.ParseQuery(query)
if q == nil && err != nil {
return
}
if err = e.Search.Expand(q); err != nil {
return
}
req := opentsdb.Request{
Queries: []*opentsdb.Query{q},
}
now := e.now
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
if err = req.SetTime(e.now); err != nil {
return
}
for i := 0; i < int(num); i++ {
now = now.Add(time.Duration(-p))
req.End = now.Unix()
req.Start = now.Add(time.Duration(-d)).Unix()
var s opentsdb.ResponseSet
s, err = timeTSDBRequest(e, T, &req)
if err != nil {
return
}
for _, res := range s {
if e.squelched(res.Tags) {
continue
}
newarr := true
for _, a := range r.Results {
if !a.Group.Equal(res.Tags) {
continue
}
newarr = false
values := a.Value.(Series)
for k, v := range res.DPS {
i, e := strconv.ParseInt(k, 10, 64)
if e != nil {
err = e
return
}
values[time.Unix(i, 0).UTC()] = float64(v)
}
}
if newarr {
values := make(Series)
a := &Result{Group: res.Tags}
for k, v := range res.DPS {
i, e := strconv.ParseInt(k, 10, 64)
if e != nil {
err = e
return
}
values[time.Unix(i, 0).UTC()] = float64(v)
}
a.Value = values
r.Results = append(r.Results, a)
}
}
}
})
return
}
