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51 lines
1.7 KiB
Go
51 lines
1.7 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 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package utils
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// NewDynamicWeightsFromString creates a DynamicWeight list based on the string received from .csv/StorDB
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func NewDynamicWeightsFromString(s, dWSep, fltrSep string) (dWs []*DynamicWeight, err error) {
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nrFlds := 2
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dwStrs := strings.Split(s, dWSep)
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lnDwStrs := len(dwStrs)
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if lnDwStrs%nrFlds != 0 { // need to have multiples of number of fields in one DynamicWeight
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return nil, fmt.Errorf("invalid DynamicWeight format for string <%s>", s)
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}
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dWs = make([]*DynamicWeight, 0, lnDwStrs/nrFlds)
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for i := 0; i < lnDwStrs; i += nrFlds {
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dw := &DynamicWeight{FilterIDs: strings.Split(dwStrs[i], fltrSep)}
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if dw.Weight, err = strconv.ParseFloat(dwStrs[i+1], 64); err != nil {
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return nil, fmt.Errorf("invalid Weight <%s> in string: <%s>", dwStrs[i+1], s)
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}
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dWs = append(dWs, dw)
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}
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return
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}
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// DynamicWeight returns Weight based on Filters
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type DynamicWeight struct {
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FilterIDs []string
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Weight float64
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}
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