Files
cgrates/engine/statmetrics.go

870 lines
22 KiB
Go

/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
package engine
import (
"fmt"
"strconv"
"time"
"github.com/cgrates/cgrates/config"
"github.com/cgrates/cgrates/utils"
)
//to be moved in utils
const STATS_NA = -1.0
// NewStatMetric instantiates the StatMetric
// cfg serves as general purpose container to pass config options to metric
func NewStatMetric(metricID string, minItems int) (sm StatMetric, err error) {
metrics := map[string]func(int, string) (StatMetric, error){
utils.MetaASR: NewASR,
utils.MetaACD: NewACD,
utils.MetaTCD: NewTCD,
utils.MetaACC: NewACC,
utils.MetaTCC: NewTCC,
utils.MetaPDD: NewPDD,
utils.MetaDDC: NewDCC,
utils.MetaSum: NewStatSum,
utils.MetaAverage: NewStatAverage,
utils.MetaDistinct: NewStatDistinct,
}
// split the metricID
// in case of *sum we have *sum#FieldName
metricSplit := utils.SplitStats(metricID)
if _, has := metrics[metricSplit[0]]; !has {
return nil, fmt.Errorf("unsupported metric type <%s>", metricSplit[0])
}
var extraParams string
if len(metricSplit[1:]) > 0 {
extraParams = metricSplit[1]
}
return metrics[metricSplit[0]](minItems, extraParams)
}
// StatMetric is the interface which a metric should implement
type StatMetric interface {
GetValue() interface{}
GetStringValue(fmtOpts string) (val string)
GetFloat64Value() (val float64)
AddEvent(ev *utils.CGREvent) error
RemEvent(evTenantID string) error
Marshal(ms Marshaler) (marshaled []byte, err error)
LoadMarshaled(ms Marshaler, marshaled []byte) (err error)
}
func NewASR(minItems int, extraParams string) (StatMetric, error) {
return &StatASR{Events: make(map[string]bool), MinItems: minItems}, nil
}
// ASR implements AverageSuccessRatio metric
type StatASR struct {
Answered float64
Count float64
Events map[string]bool // map[EventTenantID]Answered
MinItems int
val *float64 // cached ASR value
}
// getValue returns asr.val
func (asr *StatASR) getValue() float64 {
if asr.val == nil {
if (asr.MinItems > 0 && len(asr.Events) < asr.MinItems) || (asr.Count == 0) {
asr.val = utils.Float64Pointer(STATS_NA)
} else {
asr.val = utils.Float64Pointer(utils.Round((asr.Answered / asr.Count * 100),
config.CgrConfig().GeneralCfg().RoundingDecimals, utils.ROUNDING_MIDDLE))
}
}
return *asr.val
}
// GetValue returns the ASR value as part of StatMetric interface
func (asr *StatASR) GetValue() (v interface{}) {
return asr.getValue()
}
func (asr *StatASR) GetStringValue(fmtOpts string) (valStr string) {
if val := asr.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = fmt.Sprintf("%v%%", asr.getValue())
}
return
}
// GetFloat64Value is part of StatMetric interface
func (asr *StatASR) GetFloat64Value() (val float64) {
return asr.getValue()
}
// AddEvent is part of StatMetric interface
func (asr *StatASR) AddEvent(ev *utils.CGREvent) (err error) {
var answered bool
var at time.Time
if at, err = ev.FieldAsTime(utils.AnswerTime,
config.CgrConfig().GeneralCfg().DefaultTimezone); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.AnswerTime)
}
return
} else if !at.IsZero() {
answered = true
}
asr.Events[ev.ID] = answered
asr.Count += 1
if answered {
asr.Answered += 1
}
asr.val = nil
return
}
func (asr *StatASR) RemEvent(evID string) (err error) {
answered, has := asr.Events[evID]
if !has {
return utils.ErrNotFound
}
if answered {
asr.Answered -= 1
}
asr.Count -= 1
delete(asr.Events, evID)
asr.val = nil
return
}
// Marshal is part of StatMetric interface
func (asr *StatASR) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(asr)
}
// LoadMarshaled is part of StatMetric interface
func (asr *StatASR) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, asr)
}
func NewACD(minItems int, extraParams string) (StatMetric, error) {
return &StatACD{Events: make(map[string]time.Duration), MinItems: minItems}, nil
}
// ACD implements AverageCallDuration metric
type StatACD struct {
Sum time.Duration
Count int64
Events map[string]time.Duration // map[EventTenantID]Duration
MinItems int
val *time.Duration // cached ACD value
}
// getValue returns acr.val
func (acd *StatACD) getValue() time.Duration {
if acd.val == nil {
if (acd.MinItems > 0 && len(acd.Events) < acd.MinItems) || (acd.Count == 0) {
acd.val = utils.DurationPointer(time.Duration((-1) * time.Nanosecond))
} else {
acd.val = utils.DurationPointer(time.Duration(acd.Sum.Nanoseconds() / acd.Count))
}
}
return *acd.val
}
func (acd *StatACD) GetStringValue(fmtOpts string) (valStr string) {
if val := acd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
valStr = utils.NOT_AVAILABLE
} else {
valStr = fmt.Sprintf("%+v", acd.getValue())
}
return
}
func (acd *StatACD) GetValue() (v interface{}) {
return acd.getValue()
}
func (acd *StatACD) GetFloat64Value() (v float64) {
if val := acd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
v = -1.0
} else {
v = acd.getValue().Seconds()
}
return
}
func (acd *StatACD) AddEvent(ev *utils.CGREvent) (err error) {
var dur time.Duration
if dur, err = ev.FieldAsDuration(utils.Usage); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.Usage)
}
return
}
acd.Sum += dur
acd.Events[ev.ID] = dur
acd.Count += 1
acd.val = nil
return
}
func (acd *StatACD) RemEvent(evID string) (err error) {
duration, has := acd.Events[evID]
if !has {
return utils.ErrNotFound
}
if duration != 0 {
acd.Sum -= duration
}
acd.Count -= 1
delete(acd.Events, evID)
acd.val = nil
return
}
func (acd *StatACD) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(acd)
}
func (acd *StatACD) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, acd)
}
func NewTCD(minItems int, extraParams string) (StatMetric, error) {
return &StatTCD{Events: make(map[string]time.Duration), MinItems: minItems}, nil
}
// TCD implements TotalCallDuration metric
type StatTCD struct {
Sum time.Duration
Count int64
Events map[string]time.Duration // map[EventTenantID]Duration
MinItems int
val *time.Duration // cached TCD value
}
// getValue returns tcd.val
func (tcd *StatTCD) getValue() time.Duration {
if tcd.val == nil {
if (tcd.MinItems > 0 && len(tcd.Events) < tcd.MinItems) || (tcd.Count == 0) {
tcd.val = utils.DurationPointer(time.Duration((-1) * time.Nanosecond))
} else {
tcd.val = utils.DurationPointer(time.Duration(tcd.Sum.Nanoseconds()))
}
}
return *tcd.val
}
func (tcd *StatTCD) GetStringValue(fmtOpts string) (valStr string) {
if val := tcd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
valStr = utils.NOT_AVAILABLE
} else {
valStr = fmt.Sprintf("%+v", tcd.getValue())
}
return
}
func (tcd *StatTCD) GetValue() (v interface{}) {
return tcd.getValue()
}
func (tcd *StatTCD) GetFloat64Value() (v float64) {
if val := tcd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
v = -1.0
} else {
v = tcd.getValue().Seconds()
}
return
}
func (tcd *StatTCD) AddEvent(ev *utils.CGREvent) (err error) {
var dur time.Duration
if dur, err = ev.FieldAsDuration(utils.Usage); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.Usage)
}
return
}
acd.Sum += dur
tcd.Events[ev.ID] = dur
tcd.Count += 1
tcd.val = nil
return
}
func (tcd *StatTCD) RemEvent(evID string) (err error) {
duration, has := tcd.Events[evID]
if !has {
return utils.ErrNotFound
}
if duration != 0 {
tcd.Sum -= duration
}
tcd.Count -= 1
delete(tcd.Events, evID)
tcd.val = nil
return
}
func (tcd *StatTCD) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(tcd)
}
func (tcd *StatTCD) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, tcd)
}
func NewACC(minItems int, extraParams string) (StatMetric, error) {
return &StatACC{Events: make(map[string]float64), MinItems: minItems}, nil
}
// ACC implements AverageCallCost metric
type StatACC struct {
Sum float64
Count float64
Events map[string]float64 // map[EventTenantID]Cost
MinItems int
val *float64 // cached ACC value
}
// getValue returns tcd.val
func (acc *StatACC) getValue() float64 {
if acc.val == nil {
if (acc.MinItems > 0 && len(acc.Events) < acc.MinItems) || (acc.Count == 0) {
acc.val = utils.Float64Pointer(STATS_NA)
} else {
acc.val = utils.Float64Pointer(utils.Round((acc.Sum / acc.Count),
config.CgrConfig().GeneralCfg().RoundingDecimals, utils.ROUNDING_MIDDLE))
}
}
return *acc.val
}
func (acc *StatACC) GetStringValue(fmtOpts string) (valStr string) {
if val := acc.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = strconv.FormatFloat(acc.getValue(), 'f', -1, 64)
}
return
}
func (acc *StatACC) GetValue() (v interface{}) {
return acc.getValue()
}
func (acc *StatACC) GetFloat64Value() (v float64) {
return acc.getValue()
}
func (acc *StatACC) AddEvent(ev *utils.CGREvent) (err error) {
var cost float64
if cost, err = ev.FieldAsFloat64(utils.COST); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.COST)
}
return
}
acc.Sum += cost
acc.Events[ev.ID] = cost
acc.Count += 1
acc.val = nil
return
}
func (acc *StatACC) RemEvent(evID string) (err error) {
cost, has := acc.Events[evID]
if !has {
return utils.ErrNotFound
}
acc.Sum -= cost
acc.Count -= 1
delete(acc.Events, evID)
acc.val = nil
return
}
func (acc *StatACC) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(acc)
}
func (acc *StatACC) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, acc)
}
func NewTCC(minItems int, extraParams string) (StatMetric, error) {
return &StatTCC{Events: make(map[string]float64), MinItems: minItems}, nil
}
// TCC implements TotalCallCost metric
type StatTCC struct {
Sum float64
Count float64
Events map[string]float64 // map[EventTenantID]Cost
MinItems int
val *float64 // cached TCC value
}
// getValue returns tcd.val
func (tcc *StatTCC) getValue() float64 {
if tcc.val == nil {
if (tcc.MinItems > 0 && len(tcc.Events) < tcc.MinItems) || (tcc.Count == 0) {
tcc.val = utils.Float64Pointer(STATS_NA)
} else {
tcc.val = utils.Float64Pointer(utils.Round(tcc.Sum,
config.CgrConfig().GeneralCfg().RoundingDecimals,
utils.ROUNDING_MIDDLE))
}
}
return *tcc.val
}
func (tcc *StatTCC) GetStringValue(fmtOpts string) (valStr string) {
if val := tcc.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = strconv.FormatFloat(tcc.getValue(), 'f', -1, 64)
}
return
}
func (tcc *StatTCC) GetValue() (v interface{}) {
return tcc.getValue()
}
func (tcc *StatTCC) GetFloat64Value() (v float64) {
return tcc.getValue()
}
func (tcc *StatTCC) AddEvent(ev *utils.CGREvent) (err error) {
var cost float64
if cost, err = ev.FieldAsFloat64(utils.COST); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.COST)
}
return
}
acc.Sum += cost
tcc.Events[ev.ID] = cost
tcc.Count += 1
tcc.val = nil
return
}
func (tcc *StatTCC) RemEvent(evID string) (err error) {
cost, has := tcc.Events[evID]
if !has {
return utils.ErrNotFound
}
if cost != 0 {
tcc.Sum -= cost
}
tcc.Count -= 1
delete(tcc.Events, evID)
tcc.val = nil
return
}
func (tcc *StatTCC) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(tcc)
}
func (tcc *StatTCC) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, tcc)
}
func NewPDD(minItems int, extraParams string) (StatMetric, error) {
return &StatPDD{Events: make(map[string]time.Duration), MinItems: minItems}, nil
}
// PDD implements Post Dial Delay (average) metric
type StatPDD struct {
Sum time.Duration
Count int64
Events map[string]time.Duration // map[EventTenantID]Duration
MinItems int
val *time.Duration // cached PDD value
}
// getValue returns pdd.val
func (pdd *StatPDD) getValue() time.Duration {
if pdd.val == nil {
if (pdd.MinItems > 0 && len(pdd.Events) < pdd.MinItems) || (pdd.Count == 0) {
pdd.val = utils.DurationPointer(time.Duration((-1) * time.Nanosecond))
} else {
pdd.val = utils.DurationPointer(time.Duration(pdd.Sum.Nanoseconds() / pdd.Count))
}
}
return *pdd.val
}
func (pdd *StatPDD) GetStringValue(fmtOpts string) (valStr string) {
if val := pdd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
valStr = utils.NOT_AVAILABLE
} else {
valStr = fmt.Sprintf("%+v", pdd.getValue())
}
return
}
func (pdd *StatPDD) GetValue() (v interface{}) {
return pdd.getValue()
}
func (pdd *StatPDD) GetFloat64Value() (v float64) {
if val := pdd.getValue(); val == time.Duration((-1)*time.Nanosecond) {
v = -1.0
} else {
v = pdd.getValue().Seconds()
}
return
}
func (pdd *StatPDD) AddEvent(ev *utils.CGREvent) (err error) {
var dur time.Duration
if dur, err = ev.FieldAsDuration(utils.PDD); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, utils.PDD)
}
return
}
pdd.Sum += dur
pdd.Events[ev.ID] = dur
pdd.Count += 1
pdd.val = nil
return
}
func (pdd *StatPDD) RemEvent(evID string) (err error) {
duration, has := pdd.Events[evID]
if !has {
return utils.ErrNotFound
}
if duration != 0 {
pdd.Sum -= duration
}
pdd.Count -= 1
delete(pdd.Events, evID)
pdd.val = nil
return
}
func (pdd *StatPDD) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(pdd)
}
func (pdd *StatPDD) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, pdd)
}
func NewDCC(minItems int, extraParams string) (StatMetric, error) {
return &StatDDC{Destinations: make(map[string]utils.StringMap), Events: make(map[string]string), MinItems: minItems}, nil
}
// DDC implements Destination Distinct Count metric
type StatDDC struct {
Destinations map[string]utils.StringMap
Events map[string]string // map[EventTenantID]Destination
MinItems int
}
func (ddc *StatDDC) GetStringValue(fmtOpts string) (valStr string) {
if val := len(ddc.Destinations); (val == 0) || (ddc.MinItems > 0 && len(ddc.Events) < ddc.MinItems) {
valStr = utils.NOT_AVAILABLE
} else {
valStr = fmt.Sprintf("%+v", len(ddc.Destinations))
}
return
}
func (ddc *StatDDC) GetValue() (v interface{}) {
return len(ddc.Destinations)
}
func (ddc *StatDDC) GetFloat64Value() (v float64) {
if val := len(ddc.Destinations); (val == 0) || (ddc.MinItems > 0 && len(ddc.Events) < ddc.MinItems) {
v = -1.0
} else {
v = float64(len(ddc.Destinations))
}
return
}
func (ddc *StatDDC) AddEvent(ev *utils.CGREvent) (err error) {
var dest string
if dest, err = ev.FieldAsString(utils.Destination); err != nil {
return err
}
if _, has := ddc.Destinations[dest]; !has {
ddc.Destinations[dest] = make(map[string]bool)
}
ddc.Destinations[dest][ev.ID] = true
ddc.Events[ev.ID] = dest
return
}
func (ddc *StatDDC) RemEvent(evID string) (err error) {
destination, has := ddc.Events[evID]
if !has {
return utils.ErrNotFound
}
delete(ddc.Events, evID)
if len(ddc.Destinations[destination]) == 1 {
delete(ddc.Destinations, destination)
return
}
delete(ddc.Destinations[destination], evID)
return
}
func (ddc *StatDDC) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(ddc)
}
func (ddc *StatDDC) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, ddc)
}
func NewStatSum(minItems int, extraParams string) (StatMetric, error) {
return &StatSum{Events: make(map[string]float64), MinItems: minItems, FieldName: extraParams}, nil
}
type StatSum struct {
Sum float64
Events map[string]float64 // map[EventTenantID]Cost
MinItems int
FieldName string
val *float64 // cached sum value
}
// getValue returns tcd.val
func (sum *StatSum) getValue() float64 {
if sum.val == nil {
if len(sum.Events) == 0 || len(sum.Events) < sum.MinItems {
sum.val = utils.Float64Pointer(STATS_NA)
} else {
sum.val = utils.Float64Pointer(utils.Round(sum.Sum,
config.CgrConfig().GeneralCfg().RoundingDecimals,
utils.ROUNDING_MIDDLE))
}
}
return *sum.val
}
func (sum *StatSum) GetStringValue(fmtOpts string) (valStr string) {
if val := sum.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = strconv.FormatFloat(sum.getValue(), 'f', -1, 64)
}
return
}
func (sum *StatSum) GetValue() (v interface{}) {
return sum.getValue()
}
func (sum *StatSum) GetFloat64Value() (v float64) {
return sum.getValue()
}
func (sum *StatSum) AddEvent(ev *utils.CGREvent) (err error) {
var val float64
if val, err = ev.FieldAsFloat64(sum.FieldName); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, sum.FieldName)
}
return
}
sum.Sum += val
sum.Events[ev.ID] = val
sum.val = nil
return
}
func (sum *StatSum) RemEvent(evID string) (err error) {
val, has := sum.Events[evID]
if !has {
return utils.ErrNotFound
}
if val != 0 {
sum.Sum -= val
}
delete(sum.Events, evID)
sum.val = nil
return
}
func (sum *StatSum) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(sum)
}
func (sum *StatSum) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, sum)
}
func NewStatAverage(minItems int, extraParams string) (StatMetric, error) {
return &StatAverage{Events: make(map[string]float64), MinItems: minItems, FieldName: extraParams}, nil
}
// StatAverage implements TotalCallCost metric
type StatAverage struct {
Sum float64
Count float64
Events map[string]float64 // map[EventTenantID]Cost
MinItems int
FieldName string
val *float64 // cached avg value
}
// getValue returns tcd.val
func (avg *StatAverage) getValue() float64 {
if avg.val == nil {
if (avg.MinItems > 0 && len(avg.Events) < avg.MinItems) || (avg.Count == 0) {
avg.val = utils.Float64Pointer(STATS_NA)
} else {
avg.val = utils.Float64Pointer(utils.Round((avg.Sum / avg.Count),
config.CgrConfig().GeneralCfg().RoundingDecimals, utils.ROUNDING_MIDDLE))
}
}
return *avg.val
}
func (avg *StatAverage) GetStringValue(fmtOpts string) (valStr string) {
if val := avg.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = strconv.FormatFloat(avg.getValue(), 'f', -1, 64)
}
return
}
func (avg *StatAverage) GetValue() (v interface{}) {
return avg.getValue()
}
func (avg *StatAverage) GetFloat64Value() (v float64) {
return avg.getValue()
}
func (avg *StatAverage) AddEvent(ev *utils.CGREvent) (err error) {
var val float64
if val, err = ev.FieldAsFloat64(avg.FieldName); err != nil {
if err == utils.ErrNotFound {
err = utils.ErrPrefix(err, sum.FieldName)
}
return
}
avg.Sum += val
avg.Events[ev.ID] = val
avg.Count += 1
avg.val = nil
return
}
func (avg *StatAverage) RemEvent(evID string) (err error) {
val, has := avg.Events[evID]
if !has {
return utils.ErrNotFound
}
if avg.Events[avg.FieldName] >= 0 {
avg.Sum -= val
}
avg.Count -= 1
delete(avg.Events, evID)
avg.val = nil
return
}
func (avg *StatAverage) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(avg)
}
func (avg *StatAverage) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, avg)
}
func NewStatDistinct(minItems int, extraParams string) (StatMetric, error) {
return &StatDistinct{Events: make(map[string]struct{}), MinItems: minItems, FieldName: extraParams}, nil
}
type StatDistinct struct {
Numbers float64
Events map[string]struct{} // map[EventTenantID]Cost
MinItems int
FieldName string
val *float64 // cached sum value
}
// getValue returns tcd.val
func (sum *StatDistinct) getValue() float64 {
if sum.val == nil {
if len(sum.Events) == 0 || len(sum.Events) < sum.MinItems {
sum.val = utils.Float64Pointer(STATS_NA)
} else {
sum.val = utils.Float64Pointer(utils.Round(sum.Numbers,
config.CgrConfig().GeneralCfg().RoundingDecimals,
utils.ROUNDING_MIDDLE))
}
}
return *sum.val
}
func (sum *StatDistinct) GetStringValue(fmtOpts string) (valStr string) {
if val := sum.getValue(); val == STATS_NA {
valStr = utils.NOT_AVAILABLE
} else {
valStr = strconv.FormatFloat(sum.getValue(), 'f', -1, 64)
}
return
}
func (sum *StatDistinct) GetValue() (v interface{}) {
return sum.getValue()
}
func (sum *StatDistinct) GetFloat64Value() (v float64) {
return sum.getValue()
}
func (sum *StatDistinct) AddEvent(ev *utils.CGREvent) (err error) {
if has := ev.HasField(sum.FieldName); has {
sum.Numbers += 1
}
sum.Events[ev.ID] = struct{}{}
sum.val = nil
return
}
func (sum *StatDistinct) RemEvent(evID string) (err error) {
_, has := sum.Events[evID]
if !has {
return utils.ErrNotFound
}
delete(sum.Events, evID)
sum.Numbers -= 1
sum.val = nil
return
}
func (sum *StatDistinct) Marshal(ms Marshaler) (marshaled []byte, err error) {
return ms.Marshal(sum)
}
func (sum *StatDistinct) LoadMarshaled(ms Marshaler, marshaled []byte) (err error) {
return ms.Unmarshal(marshaled, sum)
}