mirror of
https://github.com/cgrates/cgrates.git
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67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
/*
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Rating system designed to be used in VoIP Carriers World
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Copyright (C) 2013 ITsysCOM
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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 cdre
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import (
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"fmt"
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"strconv"
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)
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type DeanCdrWriter struct{}
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func (dcw *DeanCdrWriter) Write(cdr []string) error {
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return nil
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}
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// Used as generic function logic for various fields
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// Attributes
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// source - the base source
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// maxLen - the maximum field lenght
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// stripAllowed - whether we allow stripping of chars in case of source bigger than the maximum allowed
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// lStrip - if true, strip from beginning of the string
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// lPadding - if true, add chars at the beginning of the string
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// paddingChar - the character wich will be used to fill the existing
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func filterField(source string, maxLen int, stripAllowed, lStrip, lPadding, padWithZero bool) (string, error) {
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if len(source) == maxLen { // the source is exactly the maximum length
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return source, nil
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}
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if len(source) > maxLen { //the source is bigger than allowed
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if !stripAllowed {
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return "", fmt.Errorf("source %s is bigger than the maximum allowed length %d", source, maxLen)
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}
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if !lStrip {
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return source[:maxLen], nil
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} else {
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diffIndx := len(source) - maxLen
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return source[diffIndx:], nil
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}
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} else { //the source is smaller as the maximum allowed
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paddingString := "%"
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if padWithZero {
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paddingString += "0" // it will not work for rPadding but this is not needed
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}
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if !lPadding {
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paddingString += "-"
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}
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paddingString += strconv.Itoa(maxLen) + "s"
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return fmt.Sprintf(paddingString, source), nil
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}
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}
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