mirror of
https://github.com/cgrates/cgrates.git
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573 lines
18 KiB
Go
573 lines
18 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>
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*/
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package engine
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import (
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"fmt"
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"math"
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"slices"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/cgrates/birpc/context"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/utils"
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)
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// NewAttributeService returns a new AttributeService
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func NewAttributeService(dm *DataManager, filterS *FilterS,
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cgrcfg *config.CGRConfig) *AttributeService {
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return &AttributeService{
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dm: dm,
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filterS: filterS,
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cgrcfg: cgrcfg,
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}
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}
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// AttributeService the service for the API
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type AttributeService struct {
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dm *DataManager
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filterS *FilterS
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cgrcfg *config.CGRConfig
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}
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// Shutdown is called to shutdown the service
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func (alS *AttributeService) Shutdown() {
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utils.Logger.Info(fmt.Sprintf("<%s> shutdown initialized", utils.AttributeS))
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utils.Logger.Info(fmt.Sprintf("<%s> shutdown complete", utils.AttributeS))
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}
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// attributeProfileForEvent returns the matching attribute
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func (alS *AttributeService) attributeProfileForEvent(tnt string, ctx *string, attrsIDs []string, actTime *time.Time, evNm utils.MapStorage,
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lastID string, processedPrfNo map[string]int, profileRuns int, ignoreFilters bool) (matchAttrPrfl *AttributeProfile, err error) {
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var attrIDs []string
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contextVal := utils.MetaDefault
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if ctx != nil && *ctx != "" {
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contextVal = *ctx
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}
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attrIdxKey := utils.ConcatenatedKey(tnt, contextVal)
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if len(attrsIDs) != 0 {
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attrIDs = attrsIDs
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} else {
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ignoreFilters = false
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aPrflIDs, err := MatchingItemIDsForEvent(evNm,
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alS.cgrcfg.AttributeSCfg().StringIndexedFields,
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alS.cgrcfg.AttributeSCfg().PrefixIndexedFields,
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alS.cgrcfg.AttributeSCfg().SuffixIndexedFields,
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alS.cgrcfg.AttributeSCfg().ExistsIndexedFields,
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alS.dm, utils.CacheAttributeFilterIndexes, attrIdxKey,
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alS.cgrcfg.AttributeSCfg().IndexedSelects,
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alS.cgrcfg.AttributeSCfg().NestedFields,
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)
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if err != nil &&
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err != utils.ErrNotFound {
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return nil, err
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}
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if err == utils.ErrNotFound ||
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alS.cgrcfg.AttributeSCfg().AnyContext {
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aPrflAnyIDs, err := MatchingItemIDsForEvent(evNm,
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alS.cgrcfg.AttributeSCfg().StringIndexedFields,
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alS.cgrcfg.AttributeSCfg().PrefixIndexedFields,
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alS.cgrcfg.AttributeSCfg().SuffixIndexedFields,
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alS.cgrcfg.AttributeSCfg().ExistsIndexedFields,
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alS.dm, utils.CacheAttributeFilterIndexes,
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utils.ConcatenatedKey(tnt, utils.MetaAny),
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alS.cgrcfg.AttributeSCfg().IndexedSelects,
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alS.cgrcfg.AttributeSCfg().NestedFields)
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if aPrflIDs.Size() == 0 {
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if err != nil { // return the error if no attribute matched the needed context
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return nil, err
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}
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aPrflIDs = aPrflAnyIDs
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} else if err == nil && aPrflAnyIDs.Size() != 0 {
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aPrflIDs = utils.JoinStringSet(aPrflIDs, aPrflAnyIDs)
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}
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}
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attrIDs = aPrflIDs.AsSlice()
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}
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for _, apID := range attrIDs {
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aPrfl, err := alS.dm.GetAttributeProfile(tnt, apID, true, true, utils.NonTransactional)
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if err != nil {
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if err == utils.ErrNotFound {
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continue
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}
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return nil, err
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}
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if !(len(aPrfl.Contexts) == 1 && aPrfl.Contexts[0] == utils.MetaAny) &&
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!slices.Contains(aPrfl.Contexts, contextVal) {
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continue
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}
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if aPrfl.ActivationInterval != nil && actTime != nil &&
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!aPrfl.ActivationInterval.IsActiveAtTime(*actTime) { // not active
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continue
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}
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tntID := aPrfl.TenantIDInline()
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(evNm[utils.MetaVars].(utils.MapStorage))[utils.MetaAttrPrfTenantID] = tntID
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if !ignoreFilters {
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if pass, err := alS.filterS.Pass(tnt, aPrfl.FilterIDs,
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evNm); err != nil {
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return nil, err
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} else if !pass {
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continue
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}
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}
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if (matchAttrPrfl == nil || matchAttrPrfl.Weight < aPrfl.Weight) &&
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tntID != lastID &&
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(profileRuns <= 0 || processedPrfNo[tntID] < profileRuns) {
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matchAttrPrfl = aPrfl
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}
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}
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// All good, convert from Map to Slice so we can sort
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if matchAttrPrfl == nil {
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return nil, utils.ErrNotFound
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}
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(evNm[utils.MetaVars].(utils.MapStorage))[utils.MetaAttrPrfTenantID] = matchAttrPrfl.TenantIDInline()
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return
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}
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// AttrSProcessEventReply reply used for proccess event
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type AttrSProcessEventReply struct {
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MatchedProfiles []string
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AlteredFields []string
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*utils.CGREvent
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blocker bool // internally used to stop further processRuns
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}
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// Digest returns serialized version of alteredFields in AttrSProcessEventReply
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// format fldName1:fldVal1,fldName2:fldVal2
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func (attrReply *AttrSProcessEventReply) Digest() (rplyDigest string) {
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for i, fld := range attrReply.AlteredFields {
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fld = strings.TrimPrefix(fld, utils.MetaReq+utils.NestingSep)
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if _, has := attrReply.CGREvent.Event[fld]; !has {
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continue //maybe removed
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}
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if i != 0 {
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rplyDigest += utils.FieldsSep
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}
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fldStrVal, _ := attrReply.CGREvent.FieldAsString(fld)
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rplyDigest += fld + utils.InInFieldSep + fldStrVal
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}
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return
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}
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// processEvent will match event with attribute profile and do the necessary replacements
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func (alS *AttributeService) processEvent(tnt string, args *utils.CGREvent, evNm utils.MapStorage, dynDP utils.DataProvider,
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lastID string, processedPrfNo map[string]int, profileRuns int) (
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rply *AttrSProcessEventReply, err error) {
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context := alS.cgrcfg.AttributeSCfg().Opts.Context
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if opt, has := args.APIOpts[utils.OptsContext]; has {
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context = utils.StringPointer(utils.IfaceAsString(opt))
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}
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var attrIDs []string
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if attrIDs, err = utils.GetStringSliceOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProfileIDs, utils.OptsAttributesProfileIDs); err != nil {
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return
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}
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var ignFilters bool
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if ignFilters, err = utils.GetBoolOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProfileIgnoreFilters,
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utils.OptsAttributesProfileIgnoreFilters); err != nil {
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return
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}
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var attrPrf *AttributeProfile
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if attrPrf, err = alS.attributeProfileForEvent(tnt, context, attrIDs, args.Time, evNm, lastID, processedPrfNo, profileRuns, ignFilters); err != nil {
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return
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}
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rply = &AttrSProcessEventReply{
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MatchedProfiles: []string{attrPrf.TenantIDInline()},
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CGREvent: args,
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blocker: attrPrf.Blocker,
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}
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rply.Tenant = tnt
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for _, attribute := range attrPrf.Attributes {
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//in case that we have filter for attribute send them to FilterS to be processed
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if len(attribute.FilterIDs) != 0 {
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var pass bool
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if pass, err = alS.filterS.Pass(tnt, attribute.FilterIDs,
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evNm); err != nil {
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return
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} else if !pass {
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continue
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}
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}
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var out any
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if out, err = ParseAttribute(dynDP, utils.FirstNonEmpty(attribute.Type, utils.MetaVariable), utils.DynamicDataPrefix+attribute.Path, attribute.Value, alS.cgrcfg.GeneralCfg().RoundingDecimals, alS.cgrcfg.GeneralCfg().DefaultTimezone, time.RFC3339, alS.cgrcfg.GeneralCfg().RSRSep); err != nil {
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rply = nil
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return
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}
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substitute := utils.IfaceAsString(out)
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//add only once the Path in AlteredFields
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if !slices.Contains(rply.AlteredFields, attribute.Path) {
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rply.AlteredFields = append(rply.AlteredFields, attribute.Path)
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}
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if attribute.Path == utils.MetaTenant {
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if attribute.Type == utils.MetaComposed {
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rply.CGREvent.Tenant += substitute
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} else {
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rply.CGREvent.Tenant = substitute
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}
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evNm[utils.MetaTenant] = substitute
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continue
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}
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if substitute == utils.MetaRemove {
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evNm.Remove(utils.SplitPath(attribute.Path, utils.NestingSep[0], -1))
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continue
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}
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if attribute.Type == utils.MetaComposed {
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var val string
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if val, err = evNm.FieldAsString(utils.SplitPath(attribute.Path, utils.NestingSep[0], -1)); err != nil && err != utils.ErrNotFound {
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rply = nil
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return
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}
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substitute = val + substitute
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}
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if err = evNm.Set(utils.SplitPath(attribute.Path, utils.NestingSep[0], -1), substitute); err != nil {
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rply = nil
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return
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}
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}
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return
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}
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// V1GetAttributeForEvent returns the AttributeProfile that matches the event
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func (alS *AttributeService) V1GetAttributeForEvent(ctx *context.Context, args *utils.CGREvent,
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attrPrfl *AttributeProfile) (err error) {
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if args == nil {
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return utils.NewErrMandatoryIeMissing(utils.CGREventString)
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}
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tnt := args.Tenant
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if tnt == utils.EmptyString {
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tnt = alS.cgrcfg.GeneralCfg().DefaultTenant
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}
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context := alS.cgrcfg.AttributeSCfg().Opts.Context
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if opt, has := args.APIOpts[utils.OptsContext]; has {
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context = utils.StringPointer(utils.IfaceAsString(opt))
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}
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var attrIDs []string
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if attrIDs, err = utils.GetStringSliceOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProfileIDs, utils.OptsAttributesProfileIDs); err != nil {
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return
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}
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var ignFilters bool
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if ignFilters, err = utils.GetBoolOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProfileIgnoreFilters,
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utils.OptsAttributesProfileIgnoreFilters); err != nil {
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return
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}
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attrPrf, err := alS.attributeProfileForEvent(tnt, context, attrIDs, args.Time, utils.MapStorage{
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utils.MetaReq: args.Event,
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utils.MetaOpts: args.APIOpts,
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utils.MetaVars: utils.MapStorage{
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utils.MetaProcessRuns: 0,
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},
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}, utils.EmptyString, make(map[string]int), 0, ignFilters)
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if err != nil {
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if err != utils.ErrNotFound {
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err = utils.NewErrServerError(err)
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}
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return err
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}
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*attrPrfl = *attrPrf
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return
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}
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// V1ProcessEvent proccess the event and returns the result
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func (alS *AttributeService) V1ProcessEvent(ctx *context.Context, args *utils.CGREvent,
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reply *AttrSProcessEventReply) (err error) {
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if args == nil {
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return utils.NewErrMandatoryIeMissing(utils.CGREventString)
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}
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if args.Event == nil {
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return utils.NewErrMandatoryIeMissing(utils.Event)
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}
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tnt := args.Tenant
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if tnt == utils.EmptyString {
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tnt = alS.cgrcfg.GeneralCfg().DefaultTenant
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}
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var processRuns int
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if processRuns, err = utils.GetIntOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProcessRuns,
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utils.OptsAttributesProcessRuns); err != nil {
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return
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}
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var profileRuns int
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if profileRuns, err = utils.GetIntOpts(args, alS.cgrcfg.AttributeSCfg().Opts.ProfileRuns,
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utils.OptsAttributesProfileRuns); err != nil {
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return
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}
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args = args.Clone()
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processedPrf := make(utils.StringSet)
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processedPrfNo := make(map[string]int)
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eNV := utils.MapStorage{
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utils.MetaReq: args.Event,
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utils.MetaOpts: args.APIOpts,
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utils.MetaVars: utils.MapStorage{
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utils.MetaProcessRuns: 0,
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utils.MetaProcessedProfileIDs: processedPrf,
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},
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utils.MetaTenant: tnt,
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}
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var lastID string
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matchedIDs := make([]string, 0, processRuns)
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alteredFields := make(utils.StringSet)
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dynDP := newDynamicDP(alS.cgrcfg.AttributeSCfg().ResourceSConns,
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alS.cgrcfg.AttributeSCfg().StatSConns, alS.cgrcfg.AttributeSCfg().ApierSConns, nil, nil, args.Tenant, eNV)
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for i := 0; i < processRuns; i++ {
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(eNV[utils.MetaVars].(utils.MapStorage))[utils.MetaProcessRuns] = i + 1
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var evRply *AttrSProcessEventReply
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evRply, err = alS.processEvent(tnt, args, eNV, dynDP, lastID, processedPrfNo, profileRuns)
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if err != nil {
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if err != utils.ErrNotFound {
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err = utils.NewErrServerError(err)
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} else if i != 0 { // ignore "not found" in a loop different than 0
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err = nil
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}
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break
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}
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args.Tenant = evRply.CGREvent.Tenant
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tnt = evRply.CGREvent.Tenant
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lastID = evRply.MatchedProfiles[0]
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matchedIDs = append(matchedIDs, lastID)
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processedPrf.Add(lastID)
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processedPrfNo[lastID] = processedPrfNo[lastID] + 1
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for _, fldName := range evRply.AlteredFields {
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alteredFields.Add(fldName)
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}
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if evRply.blocker {
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break
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}
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}
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if err == nil || err == utils.ErrNotFound {
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// Make sure the requested fields were populated
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for field, val := range args.Event {
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if val == utils.MetaAttributes {
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// mandatory IE missing
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err = utils.NewErrMandatoryIeMissing(field)
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return
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}
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}
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} else {
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return
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}
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*reply = AttrSProcessEventReply{
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MatchedProfiles: matchedIDs,
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AlteredFields: alteredFields.AsSlice(),
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CGREvent: args,
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}
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return
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}
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func ParseAttribute(dp utils.DataProvider, attrType, path string, value config.RSRParsers, roundingDec int, timeZone, layout, rsrSep string) (
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out any, err error) {
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switch attrType {
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case utils.MetaNone:
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return
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case utils.MetaConstant:
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out, err = value.ParseValue(utils.EmptyString)
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case utils.MetaVariable, utils.MetaComposed:
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out, err = value.ParseDataProvider(dp)
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case utils.MetaUsageDifference:
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if len(value) != 2 {
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return "", fmt.Errorf("invalid arguments <%s> to %s",
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utils.ToJSON(value), utils.MetaUsageDifference)
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}
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var strVal1 string
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if strVal1, err = value[0].ParseDataProvider(dp); err != nil {
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return
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}
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var strVal2 string
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if strVal2, err = value[1].ParseDataProvider(dp); err != nil {
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return
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}
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var tEnd time.Time
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if tEnd, err = utils.ParseTimeDetectLayout(strVal1, utils.EmptyString); err != nil {
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return
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}
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var tStart time.Time
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if tStart, err = utils.ParseTimeDetectLayout(strVal2, utils.EmptyString); err != nil {
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return
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}
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out = tEnd.Sub(tStart).String()
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case utils.MetaSum:
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var ifaceVals []any
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if ifaceVals, err = value.GetIfaceFromValues(dp); err != nil {
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return
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}
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out, err = utils.Sum(ifaceVals...)
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case utils.MetaDifference:
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var ifaceVals []any
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if ifaceVals, err = value.GetIfaceFromValues(dp); err != nil {
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return
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}
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out, err = utils.Difference(timeZone, ifaceVals...)
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case utils.MetaMultiply:
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var ifaceVals []any
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if ifaceVals, err = value.GetIfaceFromValues(dp); err != nil {
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return
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}
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out, err = utils.Multiply(ifaceVals...)
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case utils.MetaDivide:
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var ifaceVals []any
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if ifaceVals, err = value.GetIfaceFromValues(dp); err != nil {
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return
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}
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out, err = utils.Divide(ifaceVals...)
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case utils.MetaValueExponent:
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if len(value) != 2 {
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return "", fmt.Errorf("invalid arguments <%s> to %s",
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utils.ToJSON(value), utils.MetaValueExponent)
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}
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var strVal1 string
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if strVal1, err = value[0].ParseDataProvider(dp); err != nil {
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return
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}
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var val float64
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if val, err = strconv.ParseFloat(strVal1, 64); err != nil {
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return "", fmt.Errorf("invalid value <%s> to %s",
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strVal1, utils.MetaValueExponent)
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}
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var strVal2 string
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if strVal2, err = value[1].ParseDataProvider(dp); err != nil {
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return
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}
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var exp int
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if exp, err = strconv.Atoi(strVal2); err != nil {
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return
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}
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out = strconv.FormatFloat(utils.Round(val*math.Pow10(exp),
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roundingDec, utils.MetaRoundingMiddle), 'f', -1, 64)
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case utils.MetaUnixTimestamp:
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var val string
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if val, err = value.ParseDataProvider(dp); err != nil {
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return
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}
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var t time.Time
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if t, err = utils.ParseTimeDetectLayout(val, timeZone); err != nil {
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return
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}
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|
out = strconv.Itoa(int(t.Unix()))
|
|
case utils.MetaDateTime: // Convert the requested field value into datetime with layout
|
|
var val string
|
|
if val, err = value.ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var dtFld time.Time
|
|
dtFld, err = utils.ParseTimeDetectLayout(val, timeZone)
|
|
if err != nil {
|
|
return
|
|
}
|
|
out = dtFld.Format(layout)
|
|
case utils.MetaPrefix:
|
|
var pathRsr config.RSRParsers
|
|
pathRsr, err = config.NewRSRParsers(path, rsrSep)
|
|
if err != nil {
|
|
return
|
|
}
|
|
var pathVal string
|
|
if pathVal, err = pathRsr.ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var val string
|
|
if val, err = value.ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
out = val + pathVal
|
|
case utils.MetaSuffix:
|
|
var pathRsr config.RSRParsers
|
|
pathRsr, err = config.NewRSRParsers(path, rsrSep)
|
|
if err != nil {
|
|
return
|
|
}
|
|
var pathVal string
|
|
if pathVal, err = pathRsr.ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var val string
|
|
if val, err = value.ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
out = pathVal + val
|
|
case utils.MetaCCUsage:
|
|
if len(value) != 3 {
|
|
return nil, fmt.Errorf("invalid arguments <%s> to %s",
|
|
utils.ToJSON(value), utils.MetaCCUsage)
|
|
}
|
|
var strVal1 string
|
|
if strVal1, err = value[0].ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var reqNr int64
|
|
if reqNr, err = strconv.ParseInt(strVal1, 10, 64); err != nil {
|
|
err = fmt.Errorf("invalid requestNumber <%s> to %s",
|
|
strVal1, utils.MetaCCUsage)
|
|
return
|
|
}
|
|
var strVal2 string
|
|
if strVal2, err = value[1].ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var usedCCTime time.Duration
|
|
if usedCCTime, err = utils.ParseDurationWithNanosecs(strVal2); err != nil {
|
|
err = fmt.Errorf("invalid usedCCTime <%s> to %s",
|
|
strVal2, utils.MetaCCUsage)
|
|
return
|
|
}
|
|
var strVal3 string
|
|
if strVal3, err = value[2].ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
var debitItvl time.Duration
|
|
if debitItvl, err = utils.ParseDurationWithNanosecs(strVal3); err != nil {
|
|
err = fmt.Errorf("invalid debitInterval <%s> to %s",
|
|
strVal3, utils.MetaCCUsage)
|
|
return
|
|
}
|
|
if reqNr--; reqNr < 0 { // terminate will be ignored (init request should always be 0)
|
|
reqNr = 0
|
|
}
|
|
return usedCCTime + time.Duration(debitItvl.Nanoseconds()*reqNr), nil
|
|
case utils.MetaSIPCID:
|
|
if len(value) < 1 {
|
|
return nil, fmt.Errorf("invalid number of arguments <%s> to %s",
|
|
utils.ToJSON(value), utils.MetaSIPCID)
|
|
}
|
|
values := make([]string, 1, len(value))
|
|
if values[0], err = value[0].ParseDataProvider(dp); err != nil {
|
|
return
|
|
}
|
|
for _, val := range value[1:] {
|
|
var valStr string
|
|
if valStr, err = val.ParseDataProvider(dp); err != nil && err != utils.ErrNotFound {
|
|
return
|
|
}
|
|
if len(valStr) != 0 && err != utils.ErrNotFound {
|
|
values = append(values, valStr)
|
|
}
|
|
}
|
|
|
|
sort.Strings(values[1:])
|
|
out = strings.Join(values, utils.InfieldSep)
|
|
default:
|
|
if strings.HasPrefix(attrType, utils.MetaHTTP) {
|
|
out, err = externalAttributeAPI(attrType, dp)
|
|
break
|
|
}
|
|
return utils.EmptyString, fmt.Errorf("unsupported type: <%s>", attrType)
|
|
}
|
|
return
|
|
}
|