mirror of
https://github.com/cgrates/cgrates.git
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126 lines
3.5 KiB
Go
126 lines
3.5 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 utils
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import (
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"errors"
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"fmt"
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"strings"
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)
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// NMType the type used for navigable Map
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type NMType byte
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// posible NMType
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const (
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NMDataType NMType = iota
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NMMapType
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NMSliceType
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)
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// DataProvider is a data source from multiple formats
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type DataProvider interface {
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String() string // printable version of data
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FieldAsInterface(fldPath []string) (any, error)
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FieldAsString(fldPath []string) (string, error) // remove this
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}
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// RWDataProvider is a DataProvider with write methods on it
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type RWDataProvider interface {
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DataProvider
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Set(fldPath []string, val any) (err error)
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Remove(fldPath []string) (err error)
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}
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// NavigableMapper is the interface supported by replies convertible to CGRReply
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type NavigableMapper interface {
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AsNavigableMap() map[string]*DataNode
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}
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// DPDynamicInterface returns the value of the field if the path is dynamic
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func DPDynamicInterface(dnVal string, dP DataProvider) (any, error) {
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if strings.HasPrefix(dnVal, DynamicDataPrefix) &&
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dnVal != DynamicDataPrefix {
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dnVal = strings.TrimPrefix(dnVal, DynamicDataPrefix)
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return dP.FieldAsInterface(SplitPath(dnVal, NestingSep[0], -1))
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}
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return StringToInterface(dnVal), nil
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}
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// DPDynamicString returns the string value of the field if the path is dynamic
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func DPDynamicString(dnVal string, dP DataProvider) (string, error) {
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if strings.HasPrefix(dnVal, DynamicDataPrefix) &&
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dnVal != DynamicDataPrefix {
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dnVal = strings.TrimPrefix(dnVal, DynamicDataPrefix)
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return dP.FieldAsString(SplitPath(dnVal, NestingSep[0], -1))
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}
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return dnVal, nil
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}
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func IsPathValid(path string) (err error) {
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if !strings.HasPrefix(path, DynamicDataPrefix) {
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return nil
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}
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paths := SplitPath(path, NestingSep[0], -1)
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for _, path := range paths {
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if strings.TrimSpace(path) == EmptyString {
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return errors.New("Empty field path ")
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}
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}
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return nil
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}
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func IsPathValidForExporters(path string) (err error) {
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if !strings.HasPrefix(path, DynamicDataPrefix) {
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return nil
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}
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paths := SplitPath(path, NestingSep[0], -1)
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for _, newPath := range paths {
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if strings.TrimSpace(newPath) == EmptyString {
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return errors.New("Empty field path ")
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}
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}
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return nil
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}
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func CheckInLineFilter(fltrs []string) (err error) {
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for _, fltr := range fltrs {
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if strings.HasPrefix(fltr, Meta) {
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rules := strings.SplitN(fltr, InInFieldSep, 3)
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if len(rules) < 3 {
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return fmt.Errorf("inline parse error for string: <%s>", fltr)
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}
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valFunc := IsPathValid
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if rules[0] == MetaEmpty || rules[0] == MetaExists {
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valFunc = IsPathValidForExporters
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}
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if err = valFunc(rules[1]); err != nil {
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return fmt.Errorf("%s for <%s>", err, fltr) //encapsulated error
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}
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for _, val := range strings.Split(rules[2], PipeSep) {
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if err = valFunc(val); err != nil {
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return fmt.Errorf("%s for <%s>", err, fltr) //encapsulated error
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}
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}
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}
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}
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return nil
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}
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