优化参数判断逻辑

C#.NET/source/Yitter.IdGenerator/Contract/IdGeneratorOptions.cs

@@ -56,7 +56,7 @@ namespace Yitter.IdGenerator
 
         /// <summary>
         /// 最小序列数（含）
-        /// 默认5，不小于1，不大于MaxSeqNumber
+        /// 默认5，不小于5，不大于MaxSeqNumber
         /// </summary>
         public virtual ushort MinSeqNumber { get; set; } = 5;
 

C#.NET/source/Yitter.IdGenerator/Core/SnowWorkerM1.cs

@@ -57,8 +57,8 @@ namespace Yitter.IdGenerator
         protected static object _SyncLock = new object();
 
         protected ushort _CurrentSeqNumber;
-        protected long _LastTimeTick = -1L;
-        protected long _TurnBackTimeTick = -1L;
+        protected long _LastTimeTick = 0; // -1L
+        protected long _TurnBackTimeTick = 0; // -1L;
         protected byte _TurnBackIndex = 0;
 
         protected bool _IsOverCost = false;
@@ -73,34 +73,56 @@ namespace Yitter.IdGenerator
 
 
         public SnowWorkerM1(IdGeneratorOptions options)
-        {
-            WorkerId = options.WorkerId;
-            WorkerIdBitLength = options.WorkerIdBitLength;
-            SeqBitLength = options.SeqBitLength;
-            MaxSeqNumber = options.MaxSeqNumber;
-            MinSeqNumber = options.MinSeqNumber;
-            TopOverCostCount = options.TopOverCostCount;
-
+        {
+            // 1.BaseTime
             if (options.BaseTime != DateTime.MinValue)
             {
                 BaseTime = options.BaseTime;
-            }
-
-            if (SeqBitLength == 0)
-            {
-                SeqBitLength = 6;
-            }
-
-            if (WorkerIdBitLength == 0)
+            }
+
+            // 2.WorkerIdBitLength
+            if (options.WorkerIdBitLength == 0)
             {
                 WorkerIdBitLength = 6;
-            }
-
+            }
+            else
+            {
+                WorkerIdBitLength = options.WorkerIdBitLength;
+            }
+
+            // 3.WorkerId
+            WorkerId = options.WorkerId;
+
+            // 4.SeqBitLength
+            if (options.SeqBitLength == 0)
+            {
+                SeqBitLength = 6;
+            }
+            else
+            {
+                SeqBitLength = options.SeqBitLength;
+            }
+
+            // 5.MaxSeqNumber
             if (MaxSeqNumber == 0)
             {
                 MaxSeqNumber = (1 << SeqBitLength) - 1;
-            }
-
+            }
+            else
+            {
+                MaxSeqNumber = options.MaxSeqNumber;
+            }
+
+            // 6.MinSeqNumber
+            MinSeqNumber = options.MinSeqNumber;
+
+            // 7.Others
+            TopOverCostCount = options.TopOverCostCount;
+            if (TopOverCostCount == 0)
+            {
+                TopOverCostCount = 2000;
+            }
+
             _TimestampShift = (byte)(WorkerIdBitLength + SeqBitLength);
             _CurrentSeqNumber = options.MinSeqNumber;
 

C#.NET/source/Yitter.IdGenerator/DefaultIdGenerator.cs

@@ -35,11 +35,13 @@ namespace Yitter.IdGenerator
                 throw new ApplicationException("options error.");
             }
 
+            // 1.BaseTime
             if (options.BaseTime < DateTime.Now.AddYears(-50) || options.BaseTime > DateTime.Now)
             {
                 throw new ApplicationException("BaseTime error.");
             }
 
+            // 2.WorkerIdBitLength
             if (options.WorkerIdBitLength <= 0)
             {
                 throw new ApplicationException("WorkerIdBitLength error.(range:[1, 21])");
@@ -49,27 +51,38 @@ namespace Yitter.IdGenerator
                 throw new ApplicationException("error：WorkerIdBitLength + SeqBitLength <= 22");
             }
 
+            // 3.WorkerId
             var maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
+            if (maxWorkerIdNumber == 0)
+            {
+                maxWorkerIdNumber = 63;
+            }
             if (options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber)
             {
-                throw new ApplicationException("WorkerId error. (range:[0, " + (maxWorkerIdNumber > 0 ? maxWorkerIdNumber : 63) + "]");
+                throw new ApplicationException("WorkerId error. (range:[0, " + maxWorkerIdNumber + "]");
             }
 
+            // 4.SeqBitLength
             if (options.SeqBitLength < 2 || options.SeqBitLength > 21)
             {
                 throw new ApplicationException("SeqBitLength error. (range:[2, 21])");
             }
 
+            // 5.MaxSeqNumber
             var maxSeqNumber = (1 << options.SeqBitLength) - 1;
+            if (maxSeqNumber == 0)
+            {
+                maxSeqNumber = 63;
+            }
             if (options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber)
             {
                 throw new ApplicationException("MaxSeqNumber error. (range:[1, " + maxSeqNumber + "]");
             }
 
-            var maxValue = maxSeqNumber;
-            if (options.MinSeqNumber < 1 || options.MinSeqNumber > maxValue)
+            // 6.MinSeqNumber
+            if (options.MinSeqNumber < 5 || options.MinSeqNumber > maxSeqNumber)
             {
-                throw new ApplicationException("MinSeqNumber error. (range:[1, " + maxValue + "]");
+                throw new ApplicationException("MinSeqNumber error. (range:[5, " + maxSeqNumber + "]");
             }
 
             switch (options.Method)

C#.NET/source/Yitter.IdGenerator/Yitter.IdGenerator.csproj

@@ -18,7 +18,7 @@
     <Copyright>Yitter</Copyright>
     <PackageProjectUrl>https://github.com/yitter/idgenerator</PackageProjectUrl>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-    <Version>1.0.10</Version>
+    <Version>1.0.11</Version>
     <PackageReleaseNotes></PackageReleaseNotes>
   </PropertyGroup>
 

C/source/idgen/IdGenerator.c

@@ -34,7 +34,7 @@ extern void SetOptions(IdGeneratorOptions options) {
         exit(1);
     }
 
-    // BaseTime
+    // 1.BaseTime
     if (options.BaseTime == 0) {
         _idGenerator->Worker->BaseTime = 1582136402000;
     } else if (options.BaseTime < 631123200000 || options.BaseTime > GetCurrentTime()) {
@@ -44,7 +44,7 @@ extern void SetOptions(IdGeneratorOptions options) {
         _idGenerator->Worker->BaseTime = options.BaseTime;
     }
 
-    // WorkerIdBitLength
+    // 2.WorkerIdBitLength
     if (options.WorkerIdBitLength <= 0) {
         perror("WorkerIdBitLength error.(range:[1, 21])");
         exit(1);
@@ -53,12 +53,15 @@ extern void SetOptions(IdGeneratorOptions options) {
         perror("error：WorkerIdBitLength + SeqBitLength <= 22");
         exit(1);
     } else {
-//        _idGenerator->Worker->WorkerIdBitLength = options.WorkerIdBitLength;
+        // _idGenerator->Worker->WorkerIdBitLength = options.WorkerIdBitLength;
         _idGenerator->Worker->WorkerIdBitLength = options.WorkerIdBitLength <= 0 ? 6 : options.WorkerIdBitLength;
     }
 
-    // WorkerId
+    // 3.WorkerId
     uint32_t maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
+    if (maxWorkerIdNumber == 0) {
+        maxWorkerIdNumber = 63;
+    }
     if (options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber) {
         perror("WorkerId error. (range:[0, {2^options.WorkerIdBitLength-1]}");
         exit(1);
@@ -66,17 +69,20 @@ extern void SetOptions(IdGeneratorOptions options) {
         _idGenerator->Worker->WorkerId = options.WorkerId;
     }
 
-    // SeqBitLength
+    // 4.SeqBitLength
     if (options.SeqBitLength < 2 || options.SeqBitLength > 21) {
         perror("SeqBitLength error. (range:[2, 21])");
         exit(1);
     } else {
-//        _idGenerator->Worker->SeqBitLength = options.SeqBitLength;
+        // _idGenerator->Worker->SeqBitLength = options.SeqBitLength;
         _idGenerator->Worker->SeqBitLength = options.SeqBitLength <= 0 ? 6 : options.SeqBitLength;
     }
 
-    // MaxSeqNumber
+    // 5.MaxSeqNumber
     uint32_t maxSeqNumber = (1 << options.SeqBitLength) - 1;
+    if (maxSeqNumber == 0) {
+        maxSeqNumber = 63;
+    }
     if (options.MaxSeqNumber > maxSeqNumber) {
         perror("MaxSeqNumber error. (range:[1, {2^options.SeqBitLength-1}]");
         exit(1);
@@ -84,17 +90,19 @@ extern void SetOptions(IdGeneratorOptions options) {
         _idGenerator->Worker->MaxSeqNumber = options.MaxSeqNumber <= 0 ? maxSeqNumber : options.MaxSeqNumber;
     }
 
-    // MinSeqNumber
-    if (options.MinSeqNumber > maxSeqNumber || options.MinSeqNumber < 5) {
+    // 6.MinSeqNumber
+    if (options.MinSeqNumber < 5 || options.MinSeqNumber > maxSeqNumber) {
         perror("MinSeqNumber error. (range:[5, {options.MinSeqNumber}]");
         exit(1);
     } else {
         _idGenerator->Worker->MinSeqNumber = options.MinSeqNumber <= 0 ? 5 : options.MinSeqNumber;
     }
 
+    // 7.Others
     _idGenerator->Worker->TopOverCostCount = options.TopOverCostCount <= 0 ? 2000 : options.TopOverCostCount;
-    _idGenerator->Worker->_TimestampShift = options.WorkerIdBitLength + options.SeqBitLength;
-    _idGenerator->Worker->_CurrentSeqNumber = options.MinSeqNumber;
+    _idGenerator->Worker->_TimestampShift =
+            _idGenerator->Worker->WorkerIdBitLength + _idGenerator->Worker->SeqBitLength;
+    _idGenerator->Worker->_CurrentSeqNumber = _idGenerator->Worker->MinSeqNumber;
 
     _idGenerator->Worker->Method = options.Method;
     if (options.Method == 2) {

Go/source/idgen/DefaultIdGenerator.go

@@ -22,36 +22,49 @@ func NewDefaultIdGenerator(options *IdGeneratorOptions) *DefaultIdGenerator {
 		panic("dig.Options error.")
 	}
 
+	// 1.BaseTime
 	minTime := int64(631123200000) // time.Now().AddDate(-30, 0, 0).UnixNano() / 1e6
 	if options.BaseTime < minTime || options.BaseTime > time.Now().UnixNano()/1e6 {
 		panic("BaseTime error.")
 	}
 
-	if options.SeqBitLength+options.WorkerIdBitLength > 22 {
+	// 2.WorkerIdBitLength
+	if options.WorkerIdBitLength <= 0 {
+		panic("WorkerIdBitLength error.(range:[1, 21])")
+	}
+	if options.WorkerIdBitLength+options.SeqBitLength > 22 {
 		panic("error：WorkerIdBitLength + SeqBitLength <= 22")
 	}
 
-	maxWorkerIDNumber := uint16(1<<options.WorkerIdBitLength) - 1
-	if options.WorkerId > maxWorkerIDNumber {
-		panic("WorkerId error. (range:[1, " + strconv.FormatUint(uint64(maxWorkerIDNumber), 10) + "]")
+	// 3.WorkerId
+	maxWorkerIdNumber := uint16(1<<options.WorkerIdBitLength) - 1
+	if maxWorkerIdNumber == 0 {
+		maxWorkerIdNumber = 63
+	}
+	if options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber {
+		panic("WorkerId error. (range:[0, " + strconv.FormatUint(uint64(maxWorkerIdNumber), 10) + "]")
 	}
 
+	// 4.SeqBitLength
 	if options.SeqBitLength < 2 || options.SeqBitLength > 21 {
 		panic("SeqBitLength error. (range:[2, 21])")
 	}
 
+	// 5.MaxSeqNumber
 	maxSeqNumber := uint32(1<<options.SeqBitLength) - 1
-	if options.MaxSeqNumber > maxSeqNumber {
+	if maxSeqNumber == 0 {
+		maxSeqNumber = 63
+	}
+	if options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber {
 		panic("MaxSeqNumber error. (range:[1, " + strconv.FormatUint(uint64(maxSeqNumber), 10) + "]")
 	}
 
-	if options.MinSeqNumber > maxSeqNumber {
-		panic("MinSeqNumber error. (range:[1, " + strconv.FormatUint(uint64(maxSeqNumber), 10) + "]")
+	// 6.MinSeqNumber
+	if options.MinSeqNumber < 5 || options.MinSeqNumber > maxSeqNumber {
+		panic("MinSeqNumber error. (range:[5, " + strconv.FormatUint(uint64(maxSeqNumber), 10) + "]")
 	}
 
-
 	var snowWorker ISnowWorker
-
 	switch options.Method {
 	case 1:
 		snowWorker = NewSnowWorkerM1(options)
@@ -64,6 +77,7 @@ func NewDefaultIdGenerator(options *IdGeneratorOptions) *DefaultIdGenerator {
 	if options.Method == 1 {
 		time.Sleep(time.Duration(500) * time.Microsecond)
 	}
+
 	return &DefaultIdGenerator{
 		Options:    options,
 		SnowWorker: snowWorker,

Go/source/idgen/SnowWorkerM1.go

@@ -13,15 +13,16 @@ import (
 
 // SnowWorkerM1 .
 type SnowWorkerM1 struct {
-	BaseTime                int64  //基础时间
-	WorkerId                uint16 //机器码
-	WorkerIdBitLength       byte   //机器码位长
-	SeqBitLength            byte   //自增序列数位长
-	MaxSeqNumber            uint32 //最大序列数（含）
-	MinSeqNumber            uint32 //最小序列数（含）
-	TopOverCostCount        uint32 //最大漂移次数
-	_TimestampShift         byte
-	_CurrentSeqNumber       uint32
+	BaseTime          int64  //基础时间
+	WorkerId          uint16 //机器码
+	WorkerIdBitLength byte   //机器码位长
+	SeqBitLength      byte   //自增序列数位长
+	MaxSeqNumber      uint32 //最大序列数（含）
+	MinSeqNumber      uint32 //最小序列数（含）
+	TopOverCostCount  uint32 //最大漂移次数
+	_TimestampShift   byte
+	_CurrentSeqNumber uint32
+
 	_LastTimeTick           int64
 	_TurnBackTimeTick       int64
 	_TurnBackIndex          byte
@@ -29,6 +30,7 @@ type SnowWorkerM1 struct {
 	_OverCostCountInOneTerm uint32
 	_GenCountInOneTerm      uint32
 	_TermIndex              uint32
+
 	sync.Mutex
 }
 
@@ -38,26 +40,7 @@ func NewSnowWorkerM1(options *IdGeneratorOptions) ISnowWorker {
 	var seqBitLength byte
 	var maxSeqNumber uint32
 
-	var workerId = options.WorkerId
-
-	if options.WorkerIdBitLength == 0 {
-		workerIdBitLength = 6
-	} else {
-		workerIdBitLength = options.WorkerIdBitLength
-	}
-	if options.SeqBitLength == 0 {
-		seqBitLength = 6
-	} else {
-		seqBitLength = options.SeqBitLength
-	}
-	if options.MaxSeqNumber > 0 {
-		maxSeqNumber = options.MaxSeqNumber
-	} else {
-		maxSeqNumber = (1 << seqBitLength) - 1
-	}
-	var minSeqNumber = options.MinSeqNumber
-	var topOverCostCount = options.TopOverCostCount
-
+	// 1.BaseTime
 	var baseTime int64
 	if options.BaseTime != 0 {
 		baseTime = options.BaseTime
@@ -65,19 +48,61 @@ func NewSnowWorkerM1(options *IdGeneratorOptions) ISnowWorker {
 		baseTime = 1582136402000
 	}
 
-	timestampShift := (byte)(options.WorkerIdBitLength + options.SeqBitLength)
-	currentSeqNumber := options.MinSeqNumber
+	// 2.WorkerIdBitLength
+	if options.WorkerIdBitLength == 0 {
+		workerIdBitLength = 6
+	} else {
+		workerIdBitLength = options.WorkerIdBitLength
+	}
+
+	// 3.WorkerId
+	var workerId = options.WorkerId
+
+	// 4.SeqBitLength
+	if options.SeqBitLength == 0 {
+		seqBitLength = 6
+	} else {
+		seqBitLength = options.SeqBitLength
+	}
+
+	// 5.MaxSeqNumber
+	if options.MaxSeqNumber <= 0 {
+		maxSeqNumber = (1 << seqBitLength) - 1
+	} else {
+		maxSeqNumber = options.MaxSeqNumber
+	}
+
+	// 6.MinSeqNumber
+	var minSeqNumber = options.MinSeqNumber
+
+	// 7.Others
+	var topOverCostCount = options.TopOverCostCount
+	if topOverCostCount == 0 {
+		topOverCostCount = 2000
+	}
+
+	timestampShift := (byte)(workerIdBitLength + seqBitLength)
+	currentSeqNumber := minSeqNumber
 
 	return &SnowWorkerM1{
 		BaseTime:          baseTime,
-		WorkerId:          workerId,
 		WorkerIdBitLength: workerIdBitLength,
+		WorkerId:          workerId,
 		SeqBitLength:      seqBitLength,
 		MaxSeqNumber:      maxSeqNumber,
 		MinSeqNumber:      minSeqNumber,
 		TopOverCostCount:  topOverCostCount,
 		_TimestampShift:   timestampShift,
-		_CurrentSeqNumber: currentSeqNumber}
+		_CurrentSeqNumber: currentSeqNumber,
+
+		_LastTimeTick:           0,
+		_TurnBackTimeTick:       0,
+		_TurnBackIndex:          0,
+		_IsOverCost:             false,
+		_OverCostCountInOneTerm: 0,
+		_GenCountInOneTerm:      0,
+		_TermIndex:              0,
+	}
 }
 
 // DoGenIDAction .

Java/README.md

@@ -1,34 +1,34 @@
 
-## <EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>
+## 运行环境
 
 JDK 1.8+
 
-## <EFBFBD><EFBFBD><EFBFBD><EFBFBD> maven <EFBFBD><EFBFBD>
+## 引用 maven 包
 ```
 <dependency>
 	<groupId>com.github.yitter</groupId>
 	<artifactId>yitter-idgenerator</artifactId>
-	<version>1.0.3</version>
+	<version>1.0.5</version>
 </dependency>
 ```
 
-## <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>
+## 调用示例
 
 ```
-// ȫ<EFBFBD>ֳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>WorkerId<EFBFBD><EFBFBD>Ĭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2^16-1<><31><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> WorkerIdBitLength <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
+// 全局初始化设置WorkerId，默认最大2^16-1，可通过调整 WorkerIdBitLength 增加最大值
 IdGeneratorOptions options = new IdGeneratorOptions();
 options.WorkerId = 1;
 YitIdHelper.setIdGenerator(options);
-// <EFBFBD><EFBFBD><EFBFBD>ϳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD>Σ<EFBFBD><EFBFBD>ұ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+// 以上初始化过程全局只需一次，且必须最先设置
 
-// <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>Ժ󣬼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID<EFBFBD>ĵط<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+// 初始化以后，即可在需要生成ID的地方，调用以下方法。
 long newId = YitIdHelper.nextId();
 
 ```
-<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DI<EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բο<EFBFBD> YitIdHelper ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> IdGenerator <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>**ģʽ<C4A3><CABD>
+如果基于DI框架集成，可以参考 YitIdHelper 去管理 IdGenerator 对象，须使用**单例**模式。
 
 
-## options Ĭ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD>
+## options 默认值及说明
 
-<EFBFBD>ο<EFBFBD>Դ<EFBFBD>룺/contract/IdGeneratorOptions.java
+参考源码：/contract/IdGeneratorOptions.java
 

Java/source/pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.github.yitter</groupId>
     <artifactId>yitter-idgenerator</artifactId>
-    <version>1.0.4-SNAPSHOT</version>
+    <version>1.0.5</version>
     <packaging>jar</packaging>
 
     <name>yitter-idgenerator</name>

Java/source/src/main/java/com/github/yitter/core/SnowWorkerM1.java

@@ -50,8 +50,8 @@ public class SnowWorkerM1 implements ISnowWorker {
     protected final static byte[] _SyncLock = new byte[0];
 
     protected short _CurrentSeqNumber;
-    protected long _LastTimeTick = -1L;
-    protected long _TurnBackTimeTick = -1L;
+    protected long _LastTimeTick = 0;
+    protected long _TurnBackTimeTick = 0;
     protected byte _TurnBackIndex = 0;
 
     protected boolean _IsOverCost = false;
@@ -60,15 +60,15 @@ public class SnowWorkerM1 implements ISnowWorker {
     protected int _TermIndex = 0;
 
     public SnowWorkerM1(IdGeneratorOptions options) {
-        WorkerId = options.WorkerId;
-        WorkerIdBitLength = options.WorkerIdBitLength == 0 ? 6 : options.WorkerIdBitLength;
-        SeqBitLength = options.SeqBitLength == 0 ? 6 : options.SeqBitLength;
-        MaxSeqNumber = options.MaxSeqNumber > 0 ? options.MaxSeqNumber : (1 << SeqBitLength) - 1;
-        MinSeqNumber = options.MinSeqNumber;
-        TopOverCostCount = options.TopOverCostCount;
         BaseTime = options.BaseTime != 0 ? options.BaseTime : 1582136402000L;
+        WorkerIdBitLength = options.WorkerIdBitLength == 0 ? 6 : options.WorkerIdBitLength;
+        WorkerId = options.WorkerId;
+        SeqBitLength = options.SeqBitLength == 0 ? 6 : options.SeqBitLength;
+        MaxSeqNumber = options.MaxSeqNumber <= 0 ? (1 << SeqBitLength) - 1 : options.MaxSeqNumber;
+        MinSeqNumber = options.MinSeqNumber;
+        TopOverCostCount = options.TopOverCostCount == 0 ? 2000 : options.TopOverCostCount;
         _TimestampShift = (byte) (WorkerIdBitLength + SeqBitLength);
-        _CurrentSeqNumber = options.MinSeqNumber;
+        _CurrentSeqNumber = MinSeqNumber;
     }
 
     private void DoGenIdAction(OverCostActionArg arg) {
@@ -182,11 +182,12 @@ public class SnowWorkerM1 implements ISnowWorker {
                 BeginTurnBackAction(_TurnBackTimeTick);
             }
 
-            try {
-                // Thread.sleep(1);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
+//            try {
+//                 Thread.sleep(1);
+//            } catch (InterruptedException e) {
+//                e.printStackTrace();
+//            }
+
             return CalcTurnBackId(_TurnBackTimeTick);
         }
 

Java/source/src/main/java/com/github/yitter/idgen/DefaultIdGenerator.java

@@ -21,34 +21,45 @@ public class DefaultIdGenerator implements IIdGenerator {
             throw new IdGeneratorException("options error.");
         }
 
+        // 1.BaseTime
         if (options.BaseTime < 315504000000L || options.BaseTime > System.currentTimeMillis()) {
             throw new IdGeneratorException("BaseTime error.");
         }
 
+        // 2.WorkerIdBitLength
         if (options.WorkerIdBitLength <= 0) {
             throw new IdGeneratorException("WorkerIdBitLength error.(range:[1, 21])");
         }
-        if (options.SeqBitLength + options.WorkerIdBitLength > 22) {
+        if (options.WorkerIdBitLength + options.SeqBitLength > 22) {
             throw new IdGeneratorException("error：WorkerIdBitLength + SeqBitLength <= 22");
         }
 
+        // 3.WorkerId
         int maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
+        if (maxWorkerIdNumber == 0) {
+            maxWorkerIdNumber = 63;
+        }
         if (options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber) {
             throw new IdGeneratorException("WorkerId error. (range:[0, " + (maxWorkerIdNumber > 0 ? maxWorkerIdNumber : 63) + "]");
         }
 
+        // 4.SeqBitLength
         if (options.SeqBitLength < 2 || options.SeqBitLength > 21) {
             throw new IdGeneratorException("SeqBitLength error. (range:[2, 21])");
         }
 
+        // 5.MaxSeqNumber
         int maxSeqNumber = (1 << options.SeqBitLength) - 1;
+        if (maxSeqNumber == 0) {
+            maxSeqNumber = 63;
+        }
         if (options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber) {
             throw new IdGeneratorException("MaxSeqNumber error. (range:[1, " + maxSeqNumber + "]");
         }
 
-        int maxValue = maxSeqNumber;
-        if (options.MinSeqNumber < 5 || options.MinSeqNumber > maxValue) {
-            throw new IdGeneratorException("MinSeqNumber error. (range:[5, " + maxValue + "]");
+        // 6.MinSeqNumber
+        if (options.MinSeqNumber < 5 || options.MinSeqNumber > maxSeqNumber) {
+            throw new IdGeneratorException("MinSeqNumber error. (range:[5, " + maxSeqNumber + "]");
         }
 
         switch (options.Method) {

Java/source/src/main/java/com/github/yitter/test/StartUp.java

@@ -53,3 +53,5 @@ public class StartUp {
         }
     }
 }
+
+// mvn clean deploy -P release

Rust/source/src/yitgen/core/snow_worker_m1.rs

@@ -43,7 +43,7 @@ impl SnowWorkerM1 {
 
     pub fn SetOptions(&mut self, options: IdGeneratorOptions) {
 
-        // BaseTime
+        // 1.BaseTime
         if options.BaseTime == 0 {
             self.BaseTime = 1582136402000;
         } else if options.BaseTime < 631123200000 || options.BaseTime > Utc::now().timestamp_millis() {
@@ -52,7 +52,7 @@ impl SnowWorkerM1 {
             self.BaseTime = options.BaseTime;
         }
 
-        // WorkerIdBitLength
+        // 2.WorkerIdBitLength
         if options.WorkerIdBitLength <= 0
         {
             panic!("WorkerIdBitLength error.(range:[1, 21])");
@@ -64,15 +64,18 @@ impl SnowWorkerM1 {
             self.WorkerIdBitLength = if options.WorkerIdBitLength <= 0 { 6 } else { options.WorkerIdBitLength };
         }
 
-        // WorkerId
-        let maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
+        // 3.WorkerId
+        let mut maxWorkerIdNumber = (1 << options.WorkerIdBitLength) - 1;
+        if maxWorkerIdNumber == 0 {
+            maxWorkerIdNumber = 63;
+        }
         if options.WorkerId < 0 || options.WorkerId > maxWorkerIdNumber {
-            panic!("WorkerId error. (range:[0, {} ]", if maxWorkerIdNumber <= 0 { 63 } else { maxWorkerIdNumber });
+            panic!("WorkerId error. (range:[0, {} ]", maxWorkerIdNumber);
         } else {
             self.WorkerId = options.WorkerId;
         }
 
-        // SeqBitLength
+        // 4.SeqBitLength
         if options.SeqBitLength < 2 || options.SeqBitLength > 21 {
             panic!("SeqBitLength error. (range:[2, 21])");
         } else {
@@ -80,24 +83,29 @@ impl SnowWorkerM1 {
             self.SeqBitLength = if options.SeqBitLength <= 0 { 6 } else { options.SeqBitLength };
         }
 
-        // MaxSeqNumber
-        let maxSeqNumber = (1 << options.SeqBitLength) - 1;
-        if options.MaxSeqNumber > maxSeqNumber {
+        // 5.MaxSeqNumber
+        let mut maxSeqNumber = (1 << options.SeqBitLength) - 1;
+        if maxSeqNumber == 0 {
+            maxSeqNumber = 63;
+        }
+        if options.MaxSeqNumber < 0 || options.MaxSeqNumber > maxSeqNumber {
             panic!("MaxSeqNumber error. (range:[1, {}]", maxSeqNumber);
         } else {
-            self.MaxSeqNumber = if options.MaxSeqNumber <= 0 { maxSeqNumber } else { options.MaxSeqNumber };
+            self.MaxSeqNumber = if options.MaxSeqNumber == 0 { maxSeqNumber } else { options.MaxSeqNumber };
         }
 
-        // MinSeqNumber
-        if options.MinSeqNumber > maxSeqNumber || options.MinSeqNumber < 5 {
+        // 6.MinSeqNumber
+        if options.MinSeqNumber < 5 || options.MinSeqNumber > maxSeqNumber {
             panic!("MinSeqNumber error. (range:[5, {}]", maxSeqNumber);
         } else {
-            self.MinSeqNumber = if options.MinSeqNumber <= 0 { 5 } else { options.MinSeqNumber };
+            self.MinSeqNumber = options.MinSeqNumber;
+            // self.MinSeqNumber = if options.MinSeqNumber <= 0 { 5 } else { options.MinSeqNumber };
         }
 
+        // 7.Others
         self.TopOverCostCount = if options.TopOverCostCount == 0 { 2000 } else { options.TopOverCostCount };
-        self._TimestampShift = options.WorkerIdBitLength + options.SeqBitLength;
-        self._CurrentSeqNumber = options.MinSeqNumber;
+        self._TimestampShift = self.WorkerIdBitLength + self.SeqBitLength;
+        self._CurrentSeqNumber = self.MinSeqNumber;
 
         if options.Method == 1 {
             sleep(std::time::Duration::from_millis(500));
@@ -107,14 +115,15 @@ impl SnowWorkerM1 {
     pub fn New(options: IdGeneratorOptions) -> SnowWorkerM1 {
         let mut worker = SnowWorkerM1 {
             BaseTime: 1582136402000,
-            WorkerId: 0,
             WorkerIdBitLength: 0,
+            WorkerId: 0,
             SeqBitLength: 0,
             MaxSeqNumber: 0,
             MinSeqNumber: 0,
             TopOverCostCount: 0,
             _TimestampShift: 0,
             _CurrentSeqNumber: 0,
+
             _LastTimeTick: 0,
             _TurnBackTimeTick: 0,
             _TurnBackIndex: 0,