/
ratingprofile.go
273 lines (247 loc) · 7.72 KB
/
ratingprofile.go
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/*
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 (
"encoding/json"
"fmt"
"sort"
"strings"
"time"
"github.com/cgrates/cgrates/utils"
)
type RatingProfile struct {
Id string
RatingPlanActivations RatingPlanActivations
}
type RatingPlanActivation struct {
ActivationTime time.Time
RatingPlanId string
FallbackKeys []string
}
func (rpa *RatingPlanActivation) Equal(orpa *RatingPlanActivation) bool {
return rpa.ActivationTime == orpa.ActivationTime &&
rpa.RatingPlanId == orpa.RatingPlanId
}
type RatingPlanActivations []*RatingPlanActivation
func (rpas RatingPlanActivations) Len() int {
return len(rpas)
}
func (rpas RatingPlanActivations) Swap(i, j int) {
rpas[i], rpas[j] = rpas[j], rpas[i]
}
func (rpas RatingPlanActivations) Less(i, j int) bool {
return rpas[i].ActivationTime.Before(rpas[j].ActivationTime)
}
func (rpas RatingPlanActivations) Sort() {
sort.Sort(rpas)
}
func (rpas RatingPlanActivations) GetActiveForCall(cd *CallDescriptor) RatingPlanActivations {
rpas.Sort()
lastBeforeCallStart := 0
firstAfterCallEnd := len(rpas)
for index, rpa := range rpas {
if rpa.ActivationTime.Before(cd.TimeStart) || rpa.ActivationTime.Equal(cd.TimeStart) {
lastBeforeCallStart = index
}
if rpa.ActivationTime.After(cd.TimeEnd) {
firstAfterCallEnd = index
break
}
}
return rpas[lastBeforeCallStart:firstAfterCallEnd]
}
type RatingInfo struct {
MatchedSubject string
RatingPlanId string
MatchedPrefix string
MatchedDestId string
ActivationTime time.Time
RateIntervals RateIntervalList
FallbackKeys []string
}
// SelectRatingIntevalsForTimespan orders rate intervals in time preserving only those which aply to the specified timestamp
func (ri RatingInfo) SelectRatingIntevalsForTimespan(ts *TimeSpan) (result RateIntervalList) {
sorter := &RateIntervalTimeSorter{referenceTime: ts.TimeStart, ris: ri.RateIntervals}
rateIntervals := sorter.Sort()
// get the rating interval closest to beginning of timespan
var delta time.Duration = -1
var bestRateIntervalIndex int
var bestIntervalWeight float64
for index, rateInterval := range rateIntervals {
if !rateInterval.Contains(ts.TimeStart, false) {
continue
}
if rateInterval.Weight < bestIntervalWeight {
break // don't consider lower weights'
}
startTime := rateInterval.Timing.getLeftMargin(ts.TimeStart)
tmpDelta := ts.TimeStart.Sub(startTime)
if (startTime.Before(ts.TimeStart) ||
startTime.Equal(ts.TimeStart)) &&
(delta == -1 || tmpDelta < delta) {
bestRateIntervalIndex = index
bestIntervalWeight = rateInterval.Weight
delta = tmpDelta
}
}
result = append(result, rateIntervals[bestRateIntervalIndex])
// check if later rating intervals influence this timespan
//log.Print("RIS: ", utils.ToIJSON(rateIntervals))
for i := bestRateIntervalIndex + 1; i < len(rateIntervals); i++ {
if rateIntervals[i].Weight < bestIntervalWeight {
break // don't consider lower weights'
}
startTime := rateIntervals[i].Timing.getLeftMargin(ts.TimeStart)
if startTime.Before(ts.TimeEnd) {
result = append(result, rateIntervals[i])
}
}
return
}
type RatingInfos []*RatingInfo
func (ris RatingInfos) Len() int {
return len(ris)
}
func (ris RatingInfos) Swap(i, j int) {
ris[i], ris[j] = ris[j], ris[i]
}
func (ris RatingInfos) Less(i, j int) bool {
return ris[i].ActivationTime.Before(ris[j].ActivationTime)
}
func (ris RatingInfos) Sort() {
sort.Sort(ris)
}
func (ris RatingInfos) String() string {
b, _ := json.MarshalIndent(ris, "", " ")
return string(b)
}
func (rpf *RatingProfile) GetRatingPlansForPrefix(cd *CallDescriptor) (err error) {
var ris RatingInfos
for index, rpa := range rpf.RatingPlanActivations.GetActiveForCall(cd) {
rpl, err := dm.GetRatingPlan(rpa.RatingPlanId, false, utils.NonTransactional)
if err != nil || rpl == nil {
utils.Logger.Err(fmt.Sprintf("Error checking destination: %v", err))
continue
}
prefix := ""
destinationId := ""
var rps RateIntervalList
if cd.Destination == utils.ANY || cd.Destination == "" {
cd.Destination = utils.ANY
if _, ok := rpl.DestinationRates[utils.ANY]; ok {
rps = rpl.RateIntervalList(utils.ANY)
prefix = utils.ANY
destinationId = utils.ANY
}
} else {
for _, p := range utils.SplitPrefix(cd.Destination, MIN_PREFIX_MATCH) {
if destIDs, err := dm.GetReverseDestination(p, false, utils.NonTransactional); err == nil {
var bestWeight *float64
for _, dID := range destIDs {
var timeChecker bool
if _, ok := rpl.DestinationRates[dID]; ok {
ril := rpl.RateIntervalList(dID)
//check if RateInverval is active for call descriptor time
for _, ri := range ril {
if !ri.Timing.IsActiveAt(cd.TimeStart) {
continue
} else {
timeChecker = true
break
}
}
currentWeight := ril.GetWeight()
if timeChecker && (bestWeight == nil || currentWeight > *bestWeight) {
bestWeight = utils.Float64Pointer(currentWeight)
rps = ril
prefix = p
destinationId = dID
}
}
}
}
if rps != nil {
break
}
}
if rps == nil { // fallback on *any destination
if _, ok := rpl.DestinationRates[utils.ANY]; ok {
rps = rpl.RateIntervalList(utils.ANY)
prefix = utils.ANY
destinationId = utils.ANY
}
}
}
// check if it's the first ri and add a blank one for the initial part not covered
if index == 0 && cd.TimeStart.Before(rpa.ActivationTime) {
ris = append(ris, &RatingInfo{
MatchedSubject: "",
MatchedPrefix: "",
MatchedDestId: "",
ActivationTime: cd.TimeStart,
RateIntervals: nil,
FallbackKeys: []string{cd.GetKey(FALLBACK_SUBJECT)}})
}
if len(prefix) > 0 {
ris = append(ris, &RatingInfo{
MatchedSubject: rpf.Id,
RatingPlanId: rpl.Id,
MatchedPrefix: prefix,
MatchedDestId: destinationId,
ActivationTime: rpa.ActivationTime,
RateIntervals: rps,
FallbackKeys: rpa.FallbackKeys})
} else {
// add for fallback information
if len(rpa.FallbackKeys) > 0 {
ris = append(ris, &RatingInfo{
MatchedSubject: "",
MatchedPrefix: "",
MatchedDestId: "",
ActivationTime: rpa.ActivationTime,
RateIntervals: nil,
FallbackKeys: rpa.FallbackKeys,
})
}
}
}
if len(ris) > 0 {
cd.addRatingInfos(ris)
return
}
return utils.ErrNotFound
}
type TenantRatingSubject struct {
Tenant, Subject string
}
func RatingProfileSubjectPrefixMatching(key string) (rp *RatingProfile, err error) {
if !getRpSubjectPrefixMatching() || strings.HasSuffix(key, utils.ANY) {
return dm.GetRatingProfile(key, false, utils.NonTransactional)
}
if rp, err = dm.GetRatingProfile(key, false, utils.NonTransactional); err == nil && rp != nil { // rp nil represents cached no-result
return
}
lastIndex := strings.LastIndex(key, utils.CONCATENATED_KEY_SEP)
baseKey := key[:lastIndex]
subject := key[lastIndex:]
lenSubject := len(subject)
for i := 1; i < lenSubject-1; i++ {
if rp, err = dm.GetRatingProfile(baseKey+subject[:lenSubject-i],
false, utils.NonTransactional); err == nil && rp != nil {
return
}
}
return
}