tison
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package uid
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import (
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"strconv"
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"github.com/segmentfault/pacman/utils"
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)
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const salt = int64(100)
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// NumToShortID num to string
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func NumToShortID(id int64) string {
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sid := strconv.FormatInt(id, 10)
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if len(sid) < 17 {
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return ""
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}
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sTypeCode := sid[1:4]
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sid = sid[4:int32(len(sid))]
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id, err := strconv.ParseInt(sid, 10, 64)
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if err != nil {
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return ""
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}
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typeCode, err := strconv.ParseInt(sTypeCode, 10, 64)
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if err != nil {
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return ""
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}
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code := utils.EnShortID(id, salt)
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tcode := utils.EnShortID(typeCode, salt)
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return tcode + code
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}
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// ShortIDToNum string to num
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func ShortIDToNum(code string) int64 {
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if len(code) < 2 {
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return 0
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}
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scodeType := code[0:2]
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code = code[2:int32(len(code))]
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id := utils.DeShortID(code, salt)
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codeType := utils.DeShortID(scodeType, salt)
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return 10000000000000000 + codeType*10000000000000 + id
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}
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func EnShortID(id string) string {
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num, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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return id
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}
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return NumToShortID(num)
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}
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func DeShortID(sid string) string {
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num, err := strconv.ParseInt(sid, 10, 64)
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if err != nil {
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return strconv.FormatInt(ShortIDToNum(sid), 10)
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}
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if num < 10000000000000000 {
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return strconv.FormatInt(ShortIDToNum(sid), 10)
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}
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return sid
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}
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func IsShortID(id string) bool {
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num, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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return true
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}
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if num < 10000000000000000 {
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return true
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}
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return false
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}
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