func main() {
var numbers sort.Float64Slice = []float64{9, 2, 12, 1, 16, 12, 10}
numbers.Sort() //numbers are sorted and can be used as is.
result := median(numbers)
fmt.Println(result)
}
// CalculateRanges genetare diapason of ranges
func CalculateRanges(list []float32, rangesCount int) ([]float64, error) {
if rangesCount < 1 {
return nil, errors.New("the ranges count must be positive value more than 1")
}
if list == nil || len(list) < rangesCount {
return nil, errors.New("quantity of set float32 values must be more than the ranges count and more than 1")
}
// var deltas []float32
var sorted sort.Float64Slice
var total float64
for i := 0; i < len(list)-1; i++ {
delta := float64(list[i+1] / list[i])
total += delta
// deltas = append(deltas, delta)
sorted = append(sorted, delta)
}
sorted.Sort()
step := total / float64(rangesCount)
var ranges = make([]float64, rangesCount-1)
check := false
for i := 1; i < rangesCount; i++ {
level := step * float64(i)
var sum float64
var prev float64
for _, element := range sorted {
sum += element
if sum > level {
ranges[i-1] = (element + prev) / 2
if i > 1 && ranges[i-1] != ranges[i-2] {
check = true
}
break
} else {
prev = element
}
}
}
if check {
return ranges, nil
}
return nil, errors.New("CalculateRanges errer: ranges not vialid")
}
func (a *Account) topNTrades(n int64, normalSortOrder bool) []*orders.Order {
fslice := sort.Float64Slice{}
for e := a.Orders.Front(); e != nil; e = e.Next() {
order := e.Value.(*orders.Order)
fslice = append(fslice, order.Profit())
}
if normalSortOrder {
sort.Sort(sort.Reverse(fslice))
} else {
fslice.Sort()
}
trades := []*orders.Order{}
count := int64(0)
for _, profit := range fslice {
if count >= n {
break
}
for e := a.Orders.Front(); e != nil; e = e.Next() {
order := e.Value.(*orders.Order)
if order.Profit() == profit {
trades = append(trades, order)
break
}
}
count++
}
return trades
}
// CalculateEvenRanges2 genetare even diapasons of ranges
func CalculateEvenRanges2(list []float32, rangesCount int) ([]float64, error) {
if rangesCount < 4 || rangesCount%2 == 1 {
return nil, errors.New("the ranges count must be positive even value more than 3")
}
if list == nil || len(list) < rangesCount {
return nil, errors.New("quantity of set float32 values must be more than the ranges count and more than 3")
}
var sortedB sort.Float64Slice
var sortedL sort.Float64Slice
var totalB float64
var totalL float64
for i := 0; i < len(list)-1; i++ {
delta := float64(list[i+1] / list[i])
if delta == 1 {
continue
} else {
if delta > 1 {
totalB += delta - 1
sortedB = append(sortedB, delta-1)
} else {
totalL += 1 - delta
sortedL = append(sortedL, 1-delta)
}
}
}
sortedB.Sort()
sortedL.Sort()
half := rangesCount / 2
resultB := evenHalfRanges2(half, totalB, sortedB)
resultL := evenHalfRanges2(half, totalL, sortedL)
var ranges = make([]float64, rangesCount-1)
lenghtL := len(resultL)
for i := 1; i <= lenghtL; i++ {
ranges[i-1] = 1 - resultL[lenghtL-i]
}
ranges[lenghtL] = 1
for i := 0; i < len(resultB); i++ {
ranges[lenghtL+1+i] = 1 + resultB[i]
}
return ranges, nil
}
// CalculateEvenRanges genetare even diapasons of ranges
func CalculateEvenRanges(list []float32, rangesCount int) ([]float64, error) {
if rangesCount < 1 || rangesCount%2 == 1 {
return nil, errors.New("the ranges count must be positive even value more than 1")
}
if list == nil || len(list) < rangesCount {
return nil, errors.New("quantity of set float32 values must be more than the ranges count and more than 1")
}
var sortedB sort.Float64Slice
var sortedL sort.Float64Slice
var totalB float64
var totalL float64
for i := 0; i < len(list)-1; i++ {
delta := float64(list[i+1] / list[i])
if delta == 1 {
continue
} else {
if delta > 1 {
totalB += delta
sortedB = append(sortedB, delta)
} else {
totalL += delta
sortedL = append(sortedL, delta)
}
}
}
sortedB.Sort()
sortedL.Sort()
half := rangesCount / 2
// Hight & Low
rangesB, checkB := evenHalfRanges(half, totalB, sortedB)
rangesL, checkL := evenHalfRanges(half, totalL, sortedL)
if checkB && checkL {
var ranges = make([]float64, rangesCount-1)
copy(ranges[0:half-1], rangesL)
ranges[half] = 1.0
copy(ranges[half+1:rangesCount-2], rangesB)
return ranges, nil
}
return nil, errors.New("CalculateEvenRanges errer: ranges not vialid")
}
func (cd *CallDescriptor) GetLCR(stats StatsInterface, p *utils.Paginator) (*LCRCost, error) {
cd.account = nil // make sure it's not cached
lcr, err := cd.GetLCRFromStorage()
if err != nil {
return nil, err
}
// sort by activation time
lcr.Sort()
// find if one ore more entries apply to this cd (create lcr timespans)
// create timespans and attach lcr entries to them
lcrCost := &LCRCost{}
for _, lcrActivation := range lcr.Activations {
//log.Printf("Activation: %+v", lcrActivation)
lcrEntry := lcrActivation.GetLCREntryForPrefix(cd.Destination)
//log.Printf("Entry: %+v", lcrEntry)
if lcrActivation.ActivationTime.Before(cd.TimeStart) ||
lcrActivation.ActivationTime.Equal(cd.TimeStart) {
lcrCost.Entry = lcrEntry
} else {
// because lcr is sorted the folowing ones will
// only activate later than cd.Timestart
break
}
}
if lcrCost.Entry == nil {
return lcrCost, nil
}
//log.Printf("Entry: %+v", lcrCost.Entry)
if lcrCost.Entry.Strategy == LCR_STRATEGY_STATIC {
for _, supplier := range lcrCost.Entry.GetParams() {
lcrCD := cd.Clone()
lcrCD.Account = supplier
lcrCD.Subject = supplier
lcrCD.Category = lcrCost.Entry.RPCategory
fullSupplier := utils.ConcatenatedKey(lcrCD.Direction, lcrCD.Tenant, lcrCD.Category, lcrCD.Subject)
var cc *CallCost
var err error
if cd.account, err = accountingStorage.GetAccount(lcrCD.GetAccountKey()); err == nil {
if cd.account.Disabled {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: fmt.Sprintf("supplier %s is disabled", supplier),
})
continue
}
cc, err = lcrCD.debit(cd.account, true, true)
} else {
cc, err = lcrCD.GetCost()
}
//log.Printf("CC: %+v", cc.Timespans[0].ratingInfo.RateIntervals[0].Rating.Rates[0])
if err != nil || cc == nil {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: err.Error(),
})
} else {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Cost: cc.Cost,
Duration: cc.GetDuration(),
})
}
}
} else {
// find rating profiles
category := lcrCost.Entry.RPCategory
if category == utils.META_DEFAULT {
category = lcr.Category
}
ratingProfileSearchKey := utils.ConcatenatedKey(lcr.Direction, lcr.Tenant, lcrCost.Entry.RPCategory)
//log.Print("KEY: ", ratingProfileSearchKey)
suppliers := cache2go.GetEntriesKeys(utils.RATING_PROFILE_PREFIX + ratingProfileSearchKey)
for _, supplier := range suppliers {
//log.Print("Supplier: ", supplier)
split := strings.Split(supplier, ":")
supplier = split[len(split)-1]
lcrCD := cd.Clone()
lcrCD.Category = category
lcrCD.Account = supplier
lcrCD.Subject = supplier
fullSupplier := utils.ConcatenatedKey(lcrCD.Direction, lcrCD.Tenant, lcrCD.Category, lcrCD.Subject)
var qosSortParams []string
var asrValues sort.Float64Slice
var pddValues sort.Float64Slice
var acdValues sort.Float64Slice
var tcdValues sort.Float64Slice
var accValues sort.Float64Slice
var tccValues sort.Float64Slice
var ddcValues sort.Float64Slice
// track if one value is never calculated
asrNeverConsidered := true
pddNeverConsidered := true
acdNeverConsidered := true
tcdNeverConsidered := true
accNeverConsidered := true
tccNeverConsidered := true
ddcNeverConsidered := true
if utils.IsSliceMember([]string{LCR_STRATEGY_QOS, LCR_STRATEGY_QOS_THRESHOLD, LCR_STRATEGY_LOAD}, lcrCost.Entry.Strategy) {
if stats == nil {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: fmt.Sprintf("Cdr stats service not configured"),
})
continue
}
rpfKey := utils.ConcatenatedKey(ratingProfileSearchKey, supplier)
if rpf, err := ratingStorage.GetRatingProfile(rpfKey, false); err != nil {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: fmt.Sprintf("Rating plan error: %s", err.Error()),
})
continue
} else if rpf != nil {
rpf.RatingPlanActivations.Sort()
activeRas := rpf.RatingPlanActivations.GetActiveForCall(cd)
var cdrStatsQueueIds []string
for _, ra := range activeRas {
for _, qId := range ra.CdrStatQueueIds {
if qId != "" {
cdrStatsQueueIds = append(cdrStatsQueueIds, qId)
}
}
}
statsErr := false
var supplierQueues []*StatsQueue
for _, qId := range cdrStatsQueueIds {
if lcrCost.Entry.Strategy == LCR_STRATEGY_LOAD {
for _, qId := range cdrStatsQueueIds {
sq := &StatsQueue{}
if err := stats.GetQueue(qId, sq); err == nil {
if sq.conf.QueueLength == 0 { //only add qeues that don't have fixed length
supplierQueues = append(supplierQueues, sq)
}
}
}
} else {
statValues := make(map[string]float64)
if err := stats.GetValues(qId, &statValues); err != nil {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: fmt.Sprintf("Get stats values for queue id %s, error %s", qId, err.Error()),
})
statsErr = true
break
}
if asr, exists := statValues[ASR]; exists {
if asr > STATS_NA {
asrValues = append(asrValues, asr)
}
asrNeverConsidered = false
}
if pdd, exists := statValues[PDD]; exists {
if pdd > STATS_NA {
pddValues = append(pddValues, pdd)
}
pddNeverConsidered = false
}
if acd, exists := statValues[ACD]; exists {
if acd > STATS_NA {
acdValues = append(acdValues, acd)
}
acdNeverConsidered = false
}
if tcd, exists := statValues[TCD]; exists {
if tcd > STATS_NA {
tcdValues = append(tcdValues, tcd)
}
tcdNeverConsidered = false
}
if acc, exists := statValues[ACC]; exists {
if acc > STATS_NA {
accValues = append(accValues, acc)
}
accNeverConsidered = false
}
if tcc, exists := statValues[TCC]; exists {
if tcc > STATS_NA {
tccValues = append(tccValues, tcc)
}
tccNeverConsidered = false
}
if ddc, exists := statValues[TCC]; exists {
if ddc > STATS_NA {
ddcValues = append(ddcValues, ddc)
}
ddcNeverConsidered = false
}
}
}
if lcrCost.Entry.Strategy == LCR_STRATEGY_LOAD {
if len(supplierQueues) > 0 {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
supplierQueues: supplierQueues,
})
}
continue // next supplier
}
if statsErr { // Stats error in loop, to go next supplier
continue
}
asrValues.Sort()
pddValues.Sort()
acdValues.Sort()
tcdValues.Sort()
accValues.Sort()
tccValues.Sort()
ddcValues.Sort()
//log.Print(asrValues, acdValues)
if utils.IsSliceMember([]string{LCR_STRATEGY_QOS_THRESHOLD, LCR_STRATEGY_QOS}, lcrCost.Entry.Strategy) {
qosSortParams = lcrCost.Entry.GetParams()
}
if lcrCost.Entry.Strategy == LCR_STRATEGY_QOS_THRESHOLD {
// filter suppliers by qos thresholds
asrMin, asrMax, pddMin, pddMax, acdMin, acdMax, tcdMin, tcdMax, accMin, accMax, tccMin, tccMax, ddcMin, ddcMax := lcrCost.Entry.GetQOSLimits()
//log.Print(asrMin, asrMax, acdMin, acdMax)
// skip current supplier if off limits
if asrMin > 0 && len(asrValues) != 0 && asrValues[0] < asrMin {
continue
}
if asrMax > 0 && len(asrValues) != 0 && asrValues[len(asrValues)-1] > asrMax {
continue
}
if pddMin > 0 && len(pddValues) != 0 && pddValues[0] < pddMin.Seconds() {
continue
}
if pddMax > 0 && len(pddValues) != 0 && pddValues[len(pddValues)-1] > pddMax.Seconds() {
continue
}
if acdMin > 0 && len(acdValues) != 0 && acdValues[0] < acdMin.Seconds() {
continue
}
if acdMax > 0 && len(acdValues) != 0 && acdValues[len(acdValues)-1] > acdMax.Seconds() {
continue
}
if tcdMin > 0 && len(tcdValues) != 0 && tcdValues[0] < tcdMin.Seconds() {
continue
}
if tcdMax > 0 && len(tcdValues) != 0 && tcdValues[len(tcdValues)-1] > tcdMax.Seconds() {
continue
}
if accMin > 0 && len(accValues) != 0 && accValues[0] < accMin {
continue
}
if accMax > 0 && len(accValues) != 0 && accValues[len(accValues)-1] > accMax {
continue
}
if tccMin > 0 && len(tccValues) != 0 && tccValues[0] < tccMin {
continue
}
if tccMax > 0 && len(tccValues) != 0 && tccValues[len(tccValues)-1] > tccMax {
continue
}
if ddcMin > 0 && len(ddcValues) != 0 && ddcValues[0] < ddcMin {
continue
}
if ddcMax > 0 && len(ddcValues) != 0 && ddcValues[len(ddcValues)-1] > ddcMax {
continue
}
}
}
}
var cc *CallCost
var err error
//log.Print("CD: ", lcrCD.GetAccountKey())
if cd.account, err = accountingStorage.GetAccount(lcrCD.GetAccountKey()); err == nil {
//log.Print("ACCCOUNT")
if cd.account.Disabled {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: fmt.Sprintf("supplier %s is disabled", supplier),
})
continue
}
cc, err = lcrCD.debit(cd.account, true, true)
} else {
//log.Print("STANDARD")
cc, err = lcrCD.GetCost()
}
//log.Printf("CC: %+v", cc)
if err != nil || cc == nil {
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, &LCRSupplierCost{
Supplier: fullSupplier,
Error: err.Error(),
})
continue
} else {
supplCost := &LCRSupplierCost{
Supplier: fullSupplier,
Cost: cc.Cost,
Duration: cc.GetDuration(),
}
qos := make(map[string]float64, 5)
if !asrNeverConsidered {
qos[ASR] = utils.AvgNegative(asrValues)
}
if !pddNeverConsidered {
qos[PDD] = utils.AvgNegative(pddValues)
}
if !acdNeverConsidered {
qos[ACD] = utils.AvgNegative(acdValues)
}
if !tcdNeverConsidered {
qos[TCD] = utils.AvgNegative(tcdValues)
}
if !accNeverConsidered {
qos[ACC] = utils.AvgNegative(accValues)
}
if !tccNeverConsidered {
qos[TCC] = utils.AvgNegative(tccValues)
}
if !ddcNeverConsidered {
qos[DDC] = utils.AvgNegative(ddcValues)
}
if utils.IsSliceMember([]string{LCR_STRATEGY_QOS, LCR_STRATEGY_QOS_THRESHOLD}, lcrCost.Entry.Strategy) {
supplCost.QOS = qos
supplCost.qosSortParams = qosSortParams
}
lcrCost.SupplierCosts = append(lcrCost.SupplierCosts, supplCost)
}
}
// sort according to strategy
lcrCost.Sort()
}
if p != nil {
if p.Offset != nil && *p.Offset > 0 && *p.Offset < len(lcrCost.SupplierCosts) {
lcrCost.SupplierCosts = lcrCost.SupplierCosts[*p.Offset:]
}
if p.Limit != nil && *p.Limit > 0 && *p.Limit < len(lcrCost.SupplierCosts) {
lcrCost.SupplierCosts = lcrCost.SupplierCosts[:*p.Limit]
}
}
return lcrCost, nil
}