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雪花ID全家桶（SnowFlake IdGenerator）

yitter / 雪花ID全家桶（SnowFlake IdGenerator）
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雪
雪花ID全家桶（SnowFlake IdGenerator）

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未验证 提交 2308932d 编写于 作者: 当代码农's avatar 当代码农 提交者： GitHub
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增加TypeScript版本及其他优化 (#11) 

* 基本可运行，待优化

* 增加注释

* 增加注释说明，更容易理解

* 提交package-lock.json文件，保证依赖版本一致
上级 bdff17e0
隐藏空白更改
内联 并排
Showing with 735 addition and 37 deletion
C#.NET/source/Yitter.IdGenerator/Core/SnowWorkerM1.cs
浏览文件 @ 2308932d
......@@ -5,27 +5,27 @@
* 版权说明：只要保留本版权，你可以免费使用、修改、分发本代码。
* 免责条款：任何因为本代码产生的系统、法律、政治、宗教问题，均与版权所有者无关。
*
*/
using System;
using System.Threading;
*/
using System;
using System.Threading;
using System.Threading.Tasks;
namespace Yitter.IdGenerator
{
/// <summary>
/// 雪花漂移算法
/// </summary>
internal class SnowWorkerM1 : ISnowWorker
namespace Yitter.IdGenerator
{
/// <summary>
/// 雪花漂移算法
/// </summary>
internal class SnowWorkerM1 : ISnowWorker
{
/// <summary>
/// 基础时间
/// </summary>
protected readonly DateTime BaseTime;
protected readonly DateTime BaseTime;
/// <summary>
/// 机器码
/// </summary>
/// <summary>
/// 机器码
/// </summary>
protected readonly ushort WorkerId = 0;
/// <summary>
......@@ -40,7 +40,7 @@ namespace Yitter.IdGenerator
/// <summary>
/// 最大序列数（含）
/// </summary>
/// </summary>
protected readonly int MaxSeqNumber = 0;
/// <summary>
......@@ -57,11 +57,11 @@ namespace Yitter.IdGenerator
protected static object _SyncLock = new object();
protected ushort _CurrentSeqNumber;
protected long _LastTimeTick = 0; // -1L
protected long _TurnBackTimeTick = 0; // -1L;
protected byte _TurnBackIndex = 0;
protected bool _IsOverCost = false;
protected long _LastTimeTick = 0; // -1L
protected long _TurnBackTimeTick = 0; // -1L;
protected byte _TurnBackIndex = 0;
protected bool _IsOverCost = false;
protected int _OverCostCountInOneTerm = 0;
protected int _GenCountInOneTerm = 0;
protected int _TermIndex = 0;
......@@ -71,8 +71,8 @@ namespace Yitter.IdGenerator
public Action<OverCostActionArg> GenAction { get; set; }
public SnowWorkerM1(IdGeneratorOptions options)
public SnowWorkerM1(IdGeneratorOptions options)
{
// 1.BaseTime
if (options.BaseTime != DateTime.MinValue)
......@@ -117,17 +117,17 @@ namespace Yitter.IdGenerator
MinSeqNumber = options.MinSeqNumber;
// 7.Others
TopOverCostCount = options.TopOverCostCount;
TopOverCostCount = options.TopOverCostCount;
if (TopOverCostCount == 0)
{
TopOverCostCount = 2000;
}
_TimestampShift = (byte)(WorkerIdBitLength + SeqBitLength);
_CurrentSeqNumber = options.MinSeqNumber;
//_BaseTimeTick = BaseTime.Ticks;
//_StartTimeTick = (long)(DateTime.UtcNow.Subtract(BaseTime).TotalMilliseconds) - Environment.TickCount;
_TimestampShift = (byte)(WorkerIdBitLength + SeqBitLength);
_CurrentSeqNumber = options.MinSeqNumber;
//_BaseTimeTick = BaseTime.Ticks;
//_StartTimeTick = (long)(DateTime.UtcNow.Subtract(BaseTime).TotalMilliseconds) - Environment.TickCount;
}
......@@ -137,7 +137,7 @@ namespace Yitter.IdGenerator
{
GenAction(arg);
});
}
}
private void BeginOverCostAction(in long useTimeTick)
{
......@@ -338,11 +338,11 @@ namespace Yitter.IdGenerator
return result;
}
protected virtual long GetCurrentTimeTick()
{
//return (long)(DateTime.UtcNow - BaseTime).Ticks;
//return (long)(_StartTimeTick + Environment.TickCount);
return (long)(DateTime.UtcNow - BaseTime).TotalMilliseconds;
protected virtual long GetCurrentTimeTick()
{
//return (long)(DateTime.UtcNow - BaseTime).Ticks;
//return (long)(_StartTimeTick + Environment.TickCount);
return (long)(DateTime.UtcNow - BaseTime).TotalMilliseconds;
}
protected virtual long GetNextTimeTick()
......@@ -364,6 +364,6 @@ namespace Yitter.IdGenerator
{
return _IsOverCost ? NextOverCostId() : NextNormalId();
}
}
}
}
}
}
}
Node.js/README.md
浏览文件 @ 2308932d
......@@ -6,6 +6,12 @@
代码贡献者：bubao 布宝
执行测试代码
```bash
node test/test2.js
```
## 使用
```js
......@@ -17,4 +23,6 @@ for (let index = 0; index < 5000; index++) {
}
```
## 其他帮助
在mysql中int类型最大长度是10位数字，由于本算法默认生成的是15位，最短也是11位，所以在mysql中需要使用bigint数据类型
Node.js/test/test2.js 0 → 100644
浏览文件 @ 2308932d
const GenId = require('..')
function test1() {
const genid = new GenId({ WorkerId: 1 })
for (let index = 0; index < 5000; index++) {
console.log(genid.NextId());
}
}
function test2() {
const genid = new GenId({ WorkerId: 1 })
const id = genid.NextId()
console.log(typeof (id))
console.log(id, id.toString().length)
}
function main() {
test2()
}
main()
\ No newline at end of file
TypeScript/.gitignore 0 → 100644
浏览文件 @ 2308932d
.vscode
node_modules
env.config.js
\ No newline at end of file
TypeScript/README.md 0 → 100644
浏览文件 @ 2308932d
# ❄ idgenerator-TypeScript
## 介绍
项目更多介绍参照：https://github.com/yitter/idgenerator
代码贡献者：zhupengfei 在 bubao 布宝 基础上改版而来，感谢bubao 布宝
执行测试代码
```bash
ts-node test/test.ts
NODE_ENV=development REDIS_HOST=127.0.0.1
```
## 使用
```js
import { Genid } from '../index'
let gen = new Genid({ WorkerId: 1 })
let id1 = gen.NextId()
console.log(id1, id1.toString().length)
```
TypeScript/package-lock.json 0 → 100644
浏览文件 @ 2308932d
{
"name": "cherry-id",
"version": "0.0.3",
"lockfileVersion": 1,
"requires": true,
"dependencies": {
"@cspotcode/source-map-consumer": {
"version": "0.8.0",
"resolved": "https://registry.nlark.com/@cspotcode/source-map-consumer/download/@cspotcode/source-map-consumer-0.8.0.tgz",
"integrity": "sha1-M79LeznBeIIWBvZpu8RHpqYpeGs=",
"dev": true
},
"@cspotcode/source-map-support": {
"version": "0.6.1",
"resolved": "https://registry.nlark.com/@cspotcode/source-map-support/download/@cspotcode/source-map-support-0.6.1.tgz",
"integrity": "sha1-EYUR8xbi6H7kKUdhho4lTT2keWA=",
"dev": true,
"requires": {
"@cspotcode/source-map-consumer": "0.8.0"
}
},
"@tsconfig/node10": {
"version": "1.0.8",
"resolved": "https://registry.nlark.com/@tsconfig/node10/download/@tsconfig/node10-1.0.8.tgz?cache=0&sync_timestamp=1623230253873&other_urls=https%3A%2F%2Fregistry.nlark.com%2F%40tsconfig%2Fnode10%2Fdownload%2F%40tsconfig%2Fnode10-1.0.8.tgz",
"integrity": "sha1-weToDW+WT77LM1nEO9SLQPfK2tk=",
"dev": true
},
"@tsconfig/node12": {
"version": "1.0.9",
"resolved": "https://registry.nlark.com/@tsconfig/node12/download/@tsconfig/node12-1.0.9.tgz",
"integrity": "sha1-YsH23uLr2a6tgNw6+laBDljhoEw=",
"dev": true
},
"@tsconfig/node14": {
"version": "1.0.1",
"resolved": "https://registry.nlark.com/@tsconfig/node14/download/@tsconfig/node14-1.0.1.tgz?cache=0&sync_timestamp=1623230252928&other_urls=https%3A%2F%2Fregistry.nlark.com%2F%40tsconfig%2Fnode14%2Fdownload%2F%40tsconfig%2Fnode14-1.0.1.tgz",
"integrity": "sha1-lfLRZ/+5uNIGiwsjUwL6/U33EfI=",
"dev": true
},
"@tsconfig/node16": {
"version": "1.0.2",
"resolved": "https://registry.nlark.com/@tsconfig/node16/download/@tsconfig/node16-1.0.2.tgz",
"integrity": "sha1-Qjx3h30Fadsg4fyAiFrEEYMUAQ4=",
"dev": true
},
"@types/json5": {
"version": "0.0.29",
"resolved": "https://registry.nlark.com/@types/json5/download/@types/json5-0.0.29.tgz",
"integrity": "sha1-7ihweulOEdK4J7y+UnC86n8+ce4=",
"dev": true
},
"@types/node": {
"version": "16.7.6",
"resolved": "https://registry.nlark.com/@types/node/download/@types/node-16.7.6.tgz",
"integrity": "sha1-hmZHjbgJWqZuJbfkafPntT6ihV4=",
"dev": true
},
"acorn": {
"version": "8.4.1",
"resolved": "https://registry.nlark.com/acorn/download/acorn-8.4.1.tgz?cache=0&sync_timestamp=1624526907659&other_urls=https%3A%2F%2Fregistry.nlark.com%2Facorn%2Fdownload%2Facorn-8.4.1.tgz",
"integrity": "sha1-VsNiUfx8q8cJatwY8Fr+gUMhoow=",
"dev": true
},
"acorn-walk": {
"version": "8.1.1",
"resolved": "https://registry.nlark.com/acorn-walk/download/acorn-walk-8.1.1.tgz",
"integrity": "sha1-Pdq3+E5KfiMT9sQUxbfayF9OPrw=",
"dev": true
},
"arg": {
"version": "4.1.3",
"resolved": "https://registry.nlark.com/arg/download/arg-4.1.3.tgz",
"integrity": "sha1-Jp/HrVuOQstjyJbVZmAXJhwUQIk=",
"dev": true
},
"cd": {
"version": "0.3.3",
"resolved": "https://registry.nlark.com/cd/download/cd-0.3.3.tgz",
"integrity": "sha1-EI7LV7/5O5a5EVxUVzz+8wCO+U0=",
"dev": true
},
"create-require": {
"version": "1.1.1",
"resolved": "https://registry.npm.taobao.org/create-require/download/create-require-1.1.1.tgz",
"integrity": "sha1-wdfo8eX2z8n/ZfnNNS03NIdWwzM=",
"dev": true
},
"diff": {
"version": "4.0.2",
"resolved": "https://registry.nlark.com/diff/download/diff-4.0.2.tgz",
"integrity": "sha1-YPOuy4nV+uUgwRqhnvwruYKq3n0=",
"dev": true
},
"json5": {
"version": "1.0.1",
"resolved": "https://registry.nlark.com/json5/download/json5-1.0.1.tgz",
"integrity": "sha1-d5+wAYYE+oVOrL9iUhgNg1Q+Pb4=",
"dev": true,
"requires": {
"minimist": "^1.2.0"
}
},
"make-error": {
"version": "1.3.6",
"resolved": "https://registry.npm.taobao.org/make-error/download/make-error-1.3.6.tgz",
"integrity": "sha1-LrLjfqm2fEiR9oShOUeZr0hM96I=",
"dev": true
},
"minimist": {
"version": "1.2.5",
"resolved": "https://registry.npm.taobao.org/minimist/download/minimist-1.2.5.tgz?cache=0&sync_timestamp=1602337228360&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fminimist%2Fdownload%2Fminimist-1.2.5.tgz",
"integrity": "sha1-Z9ZgFLZqaoqqDAg8X9WN9OTpdgI=",
"dev": true
},
"strip-bom": {
"version": "3.0.0",
"resolved": "https://registry.npm.taobao.org/strip-bom/download/strip-bom-3.0.0.tgz?cache=0&sync_timestamp=1618599642133&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fstrip-bom%2Fdownload%2Fstrip-bom-3.0.0.tgz",
"integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
"dev": true
},
"ts-node": {
"version": "10.2.1",
"resolved": "https://registry.nlark.com/ts-node/download/ts-node-10.2.1.tgz?cache=0&sync_timestamp=1629307498234&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fts-node%2Fdownload%2Fts-node-10.2.1.tgz",
"integrity": "sha1-TMk76gp6uiF5SX5luwjd/BmLOrU=",
"dev": true,
"requires": {
"@cspotcode/source-map-support": "0.6.1",
"@tsconfig/node10": "^1.0.7",
"@tsconfig/node12": "^1.0.7",
"@tsconfig/node14": "^1.0.0",
"@tsconfig/node16": "^1.0.2",
"acorn": "^8.4.1",
"acorn-walk": "^8.1.1",
"arg": "^4.1.0",
"create-require": "^1.1.0",
"diff": "^4.0.1",
"make-error": "^1.1.1",
"yn": "3.1.1"
}
},
"tsconfig-paths": {
"version": "3.11.0",
"resolved": "https://registry.nlark.com/tsconfig-paths/download/tsconfig-paths-3.11.0.tgz?cache=0&sync_timestamp=1629839735580&other_urls=https%3A%2F%2Fregistry.nlark.com%2Ftsconfig-paths%2Fdownload%2Ftsconfig-paths-3.11.0.tgz",
"integrity": "sha1-lUwf6XPaYznHjgawPOLkiBC2XzY=",
"dev": true,
"requires": {
"@types/json5": "^0.0.29",
"json5": "^1.0.1",
"minimist": "^1.2.0",
"strip-bom": "^3.0.0"
}
},
"typescript": {
"version": "4.4.2",
"resolved": "https://registry.nlark.com/typescript/download/typescript-4.4.2.tgz?cache=0&sync_timestamp=1630011920137&other_urls=https%3A%2F%2Fregistry.nlark.com%2Ftypescript%2Fdownload%2Ftypescript-4.4.2.tgz",
"integrity": "sha1-bWGGQNQw41aaHftE99fmAM7T7oY=",
"dev": true
},
"yn": {
"version": "3.1.1",
"resolved": "https://registry.nlark.com/yn/download/yn-3.1.1.tgz?cache=0&sync_timestamp=1628974764210&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fyn%2Fdownload%2Fyn-3.1.1.tgz",
"integrity": "sha1-HodAGgnXZ8HV6rJqbkwYUYLS61A=",
"dev": true
}
}
}
TypeScript/package.json 0 → 100644
浏览文件 @ 2308932d
{
"name": "cherry-id",
"version": "0.0.3",
"main": "index.ts",
"directories": {
"test": "test"
},
"scripts": {
"test": "ts-node ./test/test.ts"
},
"description": "",
"devDependencies": {
"@types/node": "^16.7.6",
"cd": "^0.3.3",
"ts-node": "^10.2.1",
"tsconfig-paths": "^3.11.0",
"typescript": "^4.4.2"
}
}
TypeScript/snowflakeIdv1.ts 0 → 100644
浏览文件 @ 2308932d
/**
*
*/
export class snowflakeIdv1 {
/**
* 雪花计算方法，（1-漂移算法|2-传统算法），默认 1
*/
private Method
/**
* 基础时间（ms 单位），不能超过当前系统时间
*/
private BaseTime
/**
* 机器码，必须由外部设定，最大值 2^WorkerIdBitLength-1
*/
private WorkerId
/**
* 机器码位长，默认值 6，取值范围 [1, 15](要求：序列数位长+机器码位长不超过 22)
*/
private WorkerIdBitLength
/**
* 序列数位长，默认值 6，取值范围 [3, 21](要求：序列数位长+机器码位长不超过 22)
*/
private SeqBitLength
/**
* 最大序列数（含），设置范围 [MinSeqNumber, 2^SeqBitLength-1]，默认值 0，表示最大序列数取最大值（2^SeqBitLength-1]）
*/
private MaxSeqNumber
/**
* 最小序列数（含），默认值 5，取值范围 [5, MaxSeqNumber]，每毫秒的前 5 个序列数对应编号 0-4 是保留位，其中 1-4 是时间回拨相应预留位，0 是手工新值预留位
*/
private MinSeqNumber
/**
* 最大漂移次数（含），默认 2000，推荐范围 500-10000（与计算能力有关）
*/
private TopOverCostCount
/**
*
*/
private _TimestampShift
/**
*
*/
private _CurrentSeqNumber
/**
*
*/
private _LastTimeTick: bigint
/**
* 回拨次序, 支持 4 次回拨次序（避免回拨重叠导致 ID 重复）
*/
private _TurnBackTimeTick: bigint
/**
*
*/
private _TurnBackIndex
/**
*
*/
private _IsOverCost
/**
*
*/
private _OverCostCountInOneTerm
/**
*Creates an instance of Genid.
* @author bubao
* @param {{
* Method: 1, // 雪花计算方法，（1-漂移算法|2-传统算法），默认 1
* BaseTime: 1577836800000, // 基础时间（ms 单位），不能超过当前系统时间
* WorkerId: Number, // 机器码，必须由外部设定，最大值 2^WorkerIdBitLength-1
* WorkerIdBitLength: 6, // 机器码位长，默认值 6，取值范围 [1, 15](要求：序列数位长+机器码位长不超过 22)
* SeqBitLength: 6, // 序列数位长，默认值 6，取值范围 [3, 21](要求：序列数位长+机器码位长不超过 22)
* MaxSeqNumber: 5, // 最大序列数（含），设置范围 [MinSeqNumber, 2^SeqBitLength-1]，默认值 0，表示最大序列数取最大值（2^SeqBitLength-1]）
* MinSeqNumber: 5, // 最小序列数（含），默认值 5，取值范围 [5, MaxSeqNumber]，每毫秒的前 5 个序列数对应编号 0-4 是保留位，其中 1-4 是时间回拨相应预留位，0 是手工新值预留位
* TopOverCostCount: 2000// 最大漂移次数（含），默认 2000，推荐范围 500-10000（与计算能力有关）
* }} options
* @memberof Genid
*/
constructor(options: any) {
if (options.WorkerId === undefined)
throw new Error("lost WorkerId")
// 1.BaseTime 2020年1月1日
const BaseTime = 1577836800000
if (!options.BaseTime || options.BaseTime < 0)
options.BaseTime = BaseTime
// 2.WorkerIdBitLength
const WorkerIdBitLength = 6
if (!options.WorkerIdBitLength || options.WorkerIdBitLength < 0)
options.WorkerIdBitLength = WorkerIdBitLength
// 4.SeqBitLength
const SeqBitLength = 6
if (!options.SeqBitLength || options.SeqBitLength < 0)
options.SeqBitLength = SeqBitLength
// 5.MaxSeqNumber
const MaxSeqNumber = (1 << SeqBitLength) - 1
if (options.MaxSeqNumber <= 0 || options.MaxSeqNumber === undefined) {
options.MaxSeqNumber = MaxSeqNumber
}
// 6.MinSeqNumber
const MinSeqNumber = 5
if (!options.MinSeqNumber || options.MinSeqNumber < 0)
options.MinSeqNumber = MinSeqNumber
// 7.Others
const topOverCostCount = 2000
if (!options.TopOverCostCount || options.TopOverCostCount < 0)
options.TopOverCostCount = topOverCostCount
if (options.Method !== 2)
options.Method = 1
else
options.Method = 2
this.Method = BigInt(options.Method)
this.BaseTime = BigInt(options.BaseTime)
this.WorkerId = BigInt(options.WorkerId)
this.WorkerIdBitLength = BigInt(options.WorkerIdBitLength)
this.SeqBitLength = BigInt(options.SeqBitLength)
this.MaxSeqNumber = BigInt(options.MaxSeqNumber)
this.MinSeqNumber = BigInt(options.MinSeqNumber)
this.TopOverCostCount = BigInt(options.TopOverCostCount)
const timestampShift = this.WorkerIdBitLength + this.SeqBitLength
const currentSeqNumber = this.MinSeqNumber
this._TimestampShift = timestampShift
this._CurrentSeqNumber = currentSeqNumber
this._LastTimeTick = BigInt(0)
this._TurnBackTimeTick = BigInt(0)
this._TurnBackIndex = 0
this._IsOverCost = false
this._OverCostCountInOneTerm = 0
}
/**
* 当前序列号超过最大范围，开始透支使用序号号的通知事件，，本项暂未实现
* @returns
*/
private BeginOverCostAction(useTimeTick: any) {
}
/**
* 当前序列号超过最大范围，结束透支使用序号号的通知事件，，本项暂未实现
* @returns
*/
private EndOverCostAction(useTimeTick: any) {
// if m1._TermIndex > 10000 {
// m1._TermIndex = 0
// }
}
/**
* 开始时间回拨通知，本项暂未实现
* @returns
*/
private BeginTurnBackAction(useTimeTick: any) {
}
/**
* 结束时间回拨通知，本项暂未实现
* @returns
*/
private EndTurnBackAction(useTimeTick: any) {
}
/**
* 雪花漂移算法
* @returns
*/
private NextOverCostId(): bigint {
const currentTimeTick = this.GetCurrentTimeTick()
if (currentTimeTick > this._LastTimeTick) {
this.EndOverCostAction(currentTimeTick)
//当前时间大于上次时间，说明是时间是递增的，这是正常情况
this._LastTimeTick = currentTimeTick
this._CurrentSeqNumber = this.MinSeqNumber
this._IsOverCost = false
this._OverCostCountInOneTerm = 0
// this._GenCountInOneTerm = 0
return this.CalcId(this._LastTimeTick)
}
if (this._OverCostCountInOneTerm >= this.TopOverCostCount) {
//当前漂移次数超过最大限制
// TODO: 在漂移终止，等待时间对齐时，如果发生时间回拨较长，则此处可能等待较长时间。可优化为：在漂移终止时增加时间回拨应对逻辑。（该情况发生概率很低）
this.EndOverCostAction(currentTimeTick)
this._LastTimeTick = this.GetNextTimeTick()
this._CurrentSeqNumber = this.MinSeqNumber
this._IsOverCost = false
this._OverCostCountInOneTerm = 0
// this._GenCountInOneTerm = 0
return this.CalcId(this._LastTimeTick)
}
if (this._CurrentSeqNumber > this.MaxSeqNumber) {
//当前序列数超过最大限制，则要提前透支
this._LastTimeTick++
this._CurrentSeqNumber = this.MinSeqNumber
this._IsOverCost = true
this._OverCostCountInOneTerm++
// this._GenCountInOneTerm++
return this.CalcId(this._LastTimeTick)
}
// this._GenCountInOneTerm++
return this.CalcId(this._LastTimeTick)
}
/**
* 常规雪花算法
* @returns
*/
private NextNormalId() {
const currentTimeTick = this.GetCurrentTimeTick()
if (currentTimeTick < this._LastTimeTick) {
if (this._TurnBackTimeTick < 1) {
this._TurnBackTimeTick = this._LastTimeTick - BigInt(1)
this._TurnBackIndex++
// 每毫秒序列数的前 5 位是预留位，0 用于手工新值，1-4 是时间回拨次序
// 支持 4 次回拨次序（避免回拨重叠导致 ID 重复），可无限次回拨（次序循环使用）。
if (this._TurnBackIndex > 4)
this._TurnBackIndex = 1
this.BeginTurnBackAction(this._TurnBackTimeTick)
}
return this.CalcTurnBackId(this._TurnBackTimeTick)
}
// 时间追平时，_TurnBackTimeTick 清零
if (this._TurnBackTimeTick > 0) {
this.EndTurnBackAction(this._TurnBackTimeTick)
this._TurnBackTimeTick = BigInt(0)
}
if (currentTimeTick > this._LastTimeTick) {
this._LastTimeTick = currentTimeTick
this._CurrentSeqNumber = this.MinSeqNumber
return this.CalcId(this._LastTimeTick)
}
if (this._CurrentSeqNumber > this.MaxSeqNumber) {
this.BeginOverCostAction(currentTimeTick)
// this._TermIndex++
this._LastTimeTick++
this._CurrentSeqNumber = this.MinSeqNumber
this._IsOverCost = true
this._OverCostCountInOneTerm = 1
// this._GenCountInOneTerm = 1
return this.CalcId(this._LastTimeTick)
}
return this.CalcId(this._LastTimeTick)
}
/**
* 生成ID
* @param useTimeTick 时间戳
* @returns
*/
private CalcId(useTimeTick: bigint) {
//ID组成 1.相对基础时间的时间差 | 2.WorkerId | 3.序列数
//时间差，是生成ID时的系统时间减去 BaseTime 的总时间差（毫秒单位）
const result = BigInt(useTimeTick << this._TimestampShift) + BigInt(this.WorkerId << this.SeqBitLength) + BigInt(this._CurrentSeqNumber)
this._CurrentSeqNumber++
return result
}
/**
* 生成时间回拨ID
* @returns
*/
private CalcTurnBackId(useTimeTick: any) {
const result = BigInt(useTimeTick << this._TimestampShift) + BigInt(this.WorkerId << this.SeqBitLength) + BigInt(this._TurnBackIndex)
this._TurnBackTimeTick--
return result
}
/**
*
* @returns
*/
private GetCurrentTimeTick() {
const millis = BigInt((new Date()).valueOf())
return millis - this.BaseTime
}
/**
*
* @returns
*/
private GetNextTimeTick() {
let tempTimeTicker = this.GetCurrentTimeTick()
while (tempTimeTicker <= this._LastTimeTick) {
tempTimeTicker = this.GetCurrentTimeTick()
}
return tempTimeTicker
}
/**
* 生成ID
* @returns
*/
public NextId(): number {
if (this.Method == BigInt(1)) {
//雪花漂移算法
return parseInt(this.NextOverCostId().toString())
} else {
//常规雪花算法
return parseInt(this.NextNormalId().toString())
}
}
}
TypeScript/test/test.ts 0 → 100644
浏览文件 @ 2308932d
import { snowflakeIdv1 } from '../snowflakeIdv1'
const WorkerId = process.env.WorkerId == undefined ? 1 : process.env.WorkerId
const Method = process.env.Method == undefined ? 1 : process.env.Method
console.log("WorkerId:" + WorkerId)
console.log("Method:" + Method)
console.log("--------------------")
let gen1 = new snowflakeIdv1({ WorkerId: WorkerId, Method: Method })
function test1() {
let id1 = gen1.NextId()
console.log(id1, id1.toString().length)
}
function test2() {
let id1 = gen1.NextId()
console.log(typeof (id1))
console.log(id1, id1.toString().length)
}
function main() {
test2()
}
main()
TypeScript/tsconfig.json 0 → 100644
浏览文件 @ 2308932d
{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig.json to read more about this file */
/* Basic Options */
// "incremental": true, /* Enable incremental compilation */
"target": "ES2020",
/* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
"module": "commonjs",
/* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
// "lib": [], /* Specify library files to be included in the compilation. */
// "allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
// "jsx": "preserve", /* Specify JSX code generation: 'preserve', 'react-native', 'react', 'react-jsx' or 'react-jsxdev'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "declarationMap": true, /* Generates a sourcemap for each corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
// "outDir": "./", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "composite": true, /* Enable project compilation */
// "tsBuildInfoFile": "./", /* Specify file to store incremental compilation information */
// "removeComments": true, /* Do not emit comments to output. */
// "noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
// "isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true,
/* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* Enable strict null checks. */
// "strictFunctionTypes": true, /* Enable strict checking of function types. */
// "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
// "noUncheckedIndexedAccess": true, /* Include 'undefined' in index signature results */
// "noPropertyAccessFromIndexSignature": true, /* Require undeclared properties from index signatures to use element accesses. */
/* Module Resolution Options */
// "moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
// "baseUrl": "./", /* Base directory to resolve non-absolute module names. */
// "paths": {}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
// "typeRoots": [], /* List of folders to include type definitions from. */
// "types": [], /* Type declaration files to be included in compilation. */
// "allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
"esModuleInterop": true,
/* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
/* Source Map Options */
// "sourceRoot": "", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
/* Advanced Options */
"skipLibCheck": true,
/* Skip type checking of declaration files. */
"forceConsistentCasingInFileNames": true /* Disallow inconsistently-cased references to the same file. */
}
}
\ No newline at end of file
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