refresh test: ttl,etc...

src/main/java/component/CanBePrefix.java

@@ -44,37 +44,32 @@ public class CanBePrefix implements TlvComponentBase,InitialAble, IEncodingAble
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        // 这是一个存在性组件，所以如果值为false，则无需编码
-        if(!this.canBePrefix){
-            return -1;
-        }
-
-        int totalLength=0;
-
-        // 编码 TLV-LENGTH
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependVarNumber(new VlInt(totalLength));
+            // 这是一个存在性组件，所以如果值为false，则无需编码
+            if (!this.canBePrefix) {
+                return -1;
+            }
+
+            int totalLength = 0;
+
+            // 编码 TLV-LENGTH
+            int tmplen = encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            // 编码 TLV-TYPE
+            tmplen = encoder.prependVarNumber(new VlInt(TLV.TlvCanBePrefix));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
         } catch (EncoderException e) {
             throw new ComponentException("CanBePrefix.wireEncode: "+e.getMessage());
         }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
-
-        // 编码 TLV-TYPE
-        try {
-            tmplen=encoder.prependVarNumber(new VlInt(TLV.TlvCanBePrefix));
-        } catch (EncoderException e) {
-            throw new ComponentException("CanBePrefix.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
-
-        return totalLength;
     }
 
     /**
@@ -91,6 +86,7 @@ public class CanBePrefix implements TlvComponentBase,InitialAble, IEncodingAble
 
         // 这是一个存在性组件，所以存在则为 true
         this.canBePrefix=true;
+        this.doInitial();
         return true;
     }
 }

src/main/java/component/CongestionMark.java

@@ -9,27 +9,27 @@ import encoding.*;
  * @Date: 15:54 2021/3/9
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
-public class CongestionMark implements TlvComponentBase,InitialAble, IEncodingAble {
+public class CongestionMark implements TlvComponentBase, InitialAble, IEncodingAble {
     // 成员变量 todo: 越界问题
     private long congestionMark;
 
     // 函数
-    public long getCongestionLevel(){
+    public long getCongestionLevel() {
         return this.congestionMark;
     }
 
-    public void setCongestionLevel(long congestionMark){
-        this.congestionMark=congestionMark;
+    public void setCongestionLevel(long congestionMark) {
+        this.congestionMark = congestionMark;
         this.doInitial();
     }
 
     // 接口实现-变量区
-    private boolean initial=false;
+    private boolean initial = false;
 
     // 接口实现-方法区
     @Override
     public void doInitial() {
-        initial=true;
+        initial = true;
     }
 
     @Override
@@ -39,74 +39,68 @@ public class CongestionMark implements TlvComponentBase,InitialAble, IEncodingAb
 
     /**
      * 将 CongestionMark 线速编码为一个 TLV
+     *
      * @param encoder
      * @return
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        int totalLength=0;
-
-        // 编码 TLV-VALUE
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependNonNegativeInteger(this.congestionMark);
-        } catch (EncoderException e) {
-            throw new ComponentException("CongestionMark.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            int totalLength = 0;
 
-        // 编码 TLV-LENGTH
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("CongestionMark.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-VALUE
+            int tmplen = encoder.prependNonNegativeInteger(this.congestionMark);
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        // 编码 TLV-TYPE
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(TLV.TlvCongestionMark));
-        } catch (EncoderException e) {
-            throw new ComponentException("CongestionMark.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-LENGTH
+            tmplen += encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        return totalLength;
+            // 编码 TLV-TYPE
+            tmplen += encoder.prependVarNumber(new VlInt(TLV.TlvCongestionMark));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
+        } catch (EncoderException e) {
+            throw new ComponentException("CongestionMark.wireEncode: " + e.getMessage());
+        }
     }
 
     /**
      * 从 TLV Block 中解码出一个 CongestionMark
+     *
      * @param block
      * @return
      */
     @Override
     public boolean wireDecode(Block block) throws ComponentException {
-        // 检查 Type 是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvCongestionMark))){
-            return false;
-        }
-
-        // 读取 CongestionMark
-        long value = 0;
         try {
-            value = TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
-        } catch (TLVException | VlIntException e) {
-            throw new ComponentException("CongestionMark.wireDecode: "+e.getMessage());
-        }
-        if(value<0){
-            return false;
-        }
-        this.setCongestionLevel(value);
+            // 检查 Type 是否正确
+            if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvCongestionMark))) {
+                return false;
+            }
 
-        return true;
+            // 读取 CongestionMark
+            long value = 0;
+            value = TLV.readNonNegativeInteger(block.getValue(), 0, block.getLength().getVlIntValue2Int());
+
+            if (value < 0) {
+                return false;
+            }
+            this.setCongestionLevel(value);
+
+            return true;
+        } catch (TLVException | VlIntException e) {
+            throw new ComponentException("CongestionMark.wireDecode: " + e.getMessage());
+        }
     }
 }

src/main/java/component/FreshnessPeriod.java

@@ -9,7 +9,7 @@ import encoding.*;
  * @Date: 16:10 2021/3/9
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
-public class FreshnessPeriod implements TlvComponentBase,InitialAble, IEncodingAble {
+public class FreshnessPeriod implements TlvComponentBase, InitialAble, IEncodingAble {
     // 成员变量
     private long freshnessPeriod;
 
@@ -24,12 +24,12 @@ public class FreshnessPeriod implements TlvComponentBase,InitialAble, IEncodingA
     }
 
     // 接口实现-变量区
-    private boolean initial=false;
+    private boolean initial = false;
 
     // 接口实现-方法区
     @Override
     public void doInitial() {
-        initial=true;
+        initial = true;
     }
 
     @Override
@@ -39,74 +39,66 @@ public class FreshnessPeriod implements TlvComponentBase,InitialAble, IEncodingA
 
     /**
      * 将 FreshnessPeriod 线速编码为一个 TLV
+     *
      * @param encoder
      * @return
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        int totalLength=0;
-
-        // 编码 TLV-VALUE
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependNonNegativeInteger(this.freshnessPeriod);
-        } catch (EncoderException e) {
-            throw new ComponentException("FreshnessPeriod.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            int totalLength = 0;
 
-        // 编码 TLV-LENGTH
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("FreshnessPeriod.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-VALUE
+            int tmplen = encoder.prependNonNegativeInteger(this.freshnessPeriod);
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        // 编码 TLV-TYPE
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(TLV.TlvFreshnessPeriod));
-        } catch (EncoderException e) {
-            throw new ComponentException("FreshnessPeriod.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-LENGTH
+            tmplen += encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        return totalLength;
+            // 编码 TLV-TYPE
+            tmplen += encoder.prependVarNumber(new VlInt(TLV.TlvFreshnessPeriod));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
+        } catch (EncoderException e) {
+            throw new ComponentException("FreshnessPeriod.wireEncode: " + e.getMessage());
+        }
     }
 
     /**
      * 从 TLV Block 中解码出一个 FreshnessPeriod
+     *
      * @param block
      * @return
      */
     @Override
     public boolean wireDecode(Block block) throws ComponentException {
-        // 检查 Type 是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvFreshnessPeriod))){
-            return false;
-        }
-
-        // 读取 value
-        long value= 0;
         try {
-            value = TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
-        } catch (TLVException | VlIntException e) {
-            throw new ComponentException("FreshnessPeriod.wireDecode: "+e.getMessage());
-        }
-        if(value<0){
-            return false;
-        }
-        this.setFreshnessPeriod(value);
+            // 检查 Type 是否正确
+            if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvFreshnessPeriod))) {
+                return false;
+            }
 
-        return true;
+            // 读取 value
+            long value = TLV.readNonNegativeInteger(block.getValue(), 0, block.getLength().getVlIntValue2Int());
+            if (value < 0) {
+                return false;
+            }
+            this.setFreshnessPeriod(value);
+
+            return true;
+        } catch (TLVException | VlIntException e) {
+            throw new ComponentException("FreshnessPeriod.wireDecode: " + e.getMessage());
+        }
     }
 }

src/main/java/component/HopLimit.java

@@ -44,64 +44,54 @@ public class HopLimit implements TlvComponentBase,InitialAble, IEncodingAble {
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        int totalLength=0;
-
-        // 编码 TLV-VALUE
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependNonNegativeInteger(this.hopLimit);
+            int totalLength = 0;
+
+            // 编码 TLV-VALUE
+            int tmplen = encoder.prependNonNegativeInteger(this.hopLimit);
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            // 编码 TLV-LENGTH
+            tmplen += encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            // 编码 TLV-TYPE
+            tmplen += encoder.prependVarNumber(new VlInt(TLV.TlvHopLimit));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
         } catch (EncoderException e) {
             throw new ComponentException("HopLimit.wireEncode: "+e.getMessage());
         }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
-
-        // 编码 TLV-LENGTH
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("HopLimit.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
-
-        // 编码 TLV-TYPE
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(TLV.TlvHopLimit));
-        } catch (EncoderException e) {
-            throw new ComponentException("HopLimit.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
-
-        return totalLength;
     }
 
     @Override
     public boolean wireDecode(Block block) throws ComponentException {
-        // 检查 Type 是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvHopLimit))){
-            return false;
-        }
-
-        // 读取 HopLimit
-        long value= 0;
         try {
-            value = TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
+            // 检查 Type 是否正确
+            if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvHopLimit))) {
+                return false;
+            }
+
+            // 读取 HopLimit
+            long value = TLV.readNonNegativeInteger(block.getValue(), 0, block.getLength().getVlIntValue2Int());
+            if (value < 0) {
+                return false;
+            }
+            this.setHopLimit(value);
+
+            return true;
         } catch (TLVException | VlIntException e) {
             throw new ComponentException("HopLimit.wireDecode: "+e.getMessage());
         }
-        if(value<0){
-            return false;
-        }
-        this.setHopLimit(value);
-
-        return true;
     }
 }

src/main/java/component/MustBeRefresh.java

@@ -9,7 +9,7 @@ import encoding.*;
  * @Date: 16:30 2021/3/9
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
-public class MustBeRefresh implements TlvComponentBase,InitialAble, IEncodingAble {
+public class MustBeRefresh implements TlvComponentBase, InitialAble, IEncodingAble {
     // 成员变量
     private boolean mustBeRefresh;
 
@@ -24,12 +24,12 @@ public class MustBeRefresh implements TlvComponentBase,InitialAble, IEncodingAbl
     }
 
     // 接口实现-变量区
-    private boolean initial=false;
+    private boolean initial = false;
 
     // 接口实现-方法区
     @Override
     public void doInitial() {
-        initial=true;
+        initial = true;
     }
 
     @Override
@@ -39,58 +39,56 @@ public class MustBeRefresh implements TlvComponentBase,InitialAble, IEncodingAbl
 
     /**
      * 将 MustBeRefresh 线速编码为一个 TLV
+     *
      * @param encoder
      * @return
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        // 这是一个存在性组件，所以如果值为false，则无需编码
-        if(!this.mustBeRefresh){
-            return -1;
-        }
-
-        int totalLength=0;
-
-        // 编码 TLV-LENGTH
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("MustBeRefresh.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 这是一个存在性组件，所以如果值为false，则无需编码
+            if (!this.mustBeRefresh) {
+                return -1;
+            }
 
-        // 编码 TLV-TYPE
-        try {
-            tmplen=encoder.prependVarNumber(new VlInt(TLV.TlvMustBeRefresh));
-        } catch (EncoderException e) {
-            throw new ComponentException("MustBeRefresh.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            int totalLength = 0;
 
-        return totalLength;
+            // 编码 TLV-LENGTH
+            int tmplen = encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            // 编码 TLV-TYPE
+            tmplen = encoder.prependVarNumber(new VlInt(TLV.TlvMustBeRefresh));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
+        } catch (EncoderException e) {
+            throw new ComponentException("MustBeRefresh.wireEncode: " + e.getMessage());
+        }
     }
 
     /**
      * 从 TLV Block 中解码出一个 MustBeRefresh
+     *
      * @param block
      * @return
      */
     @Override
     public boolean wireDecode(Block block) {
         // 检查 Type 是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvMustBeRefresh))){
+        if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvMustBeRefresh))) {
             return false;
         }
 
         // 这是一个存在性组件，所以存在则为 true
-        this.mustBeRefresh=true;
+        this.mustBeRefresh = true;
+        this.doInitial();
         return true;
     }
 }

src/main/java/component/Nonce.java

@@ -11,7 +11,7 @@ import java.util.Random;
  * @Date: 17:13 2021/3/9
  * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
  */
-public class Nonce implements TlvComponentBase,InitialAble, IEncodingAble {
+public class Nonce implements TlvComponentBase, InitialAble, IEncodingAble {
     // 成员变量
     private long nonce;
 
@@ -28,18 +28,18 @@ public class Nonce implements TlvComponentBase,InitialAble, IEncodingAble {
     /**
      * 刷新Nonce，随机生成一个数值传递给Nonce
      */
-    public void refreshNonce(){
-        long randomLong=Math.abs(new Random().nextLong());
+    public void refreshNonce() {
+        long randomLong = Math.abs(new Random().nextLong());
         this.setNonce(randomLong);
     }
 
     // 接口实现-变量区
-    private boolean initial=false;
+    private boolean initial = false;
 
     // 接口实现-方法区
     @Override
     public void doInitial() {
-        initial=true;
+        initial = true;
     }
 
     @Override
@@ -49,74 +49,66 @@ public class Nonce implements TlvComponentBase,InitialAble, IEncodingAble {
 
     /**
      * 将 Nonce 线速编码为一个 TLV
+     *
      * @param encoder
      * @return
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        int totalLength=0;
-
-        // 编码 TLV-VALUE
-        int tmplen= 0;
         try {
-            tmplen = encoder.prependNonNegativeInteger(this.nonce);
-        } catch (EncoderException e) {
-            throw new ComponentException("Nonce.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            int totalLength = 0;
 
-        // 编码 TLV-LENGTH
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("Nonce.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-VALUE
+            int tmplen = encoder.prependNonNegativeInteger(this.nonce);
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        // 编码 TLV-TYPE
-        try {
-            tmplen+=encoder.prependVarNumber(new VlInt(TLV.TlvNonce));
-        } catch (EncoderException e) {
-            throw new ComponentException("Nonce.wireEncode: "+e.getMessage());
-        }
-        if(tmplen<=0){
-            return -1;
-        }
-        totalLength+=tmplen;
+            // 编码 TLV-LENGTH
+            tmplen += encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
 
-        return totalLength;
+            // 编码 TLV-TYPE
+            tmplen += encoder.prependVarNumber(new VlInt(TLV.TlvNonce));
+            if (tmplen <= 0) {
+                return -1;
+            }
+            totalLength += tmplen;
+
+            return totalLength;
+        } catch (EncoderException e) {
+            throw new ComponentException("Nonce.wireEncode: " + e.getMessage());
+        }
     }
 
     /**
      * 从 TLV Block 中解码出一个 Nonce
+     *
      * @param block
      * @return
      */
     @Override
     public boolean wireDecode(Block block) throws ComponentException {
-        // 检查 Type 是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvNonce))){
-            return false;
-        }
-
-        // 读取 value
-        long value= 0;
         try {
-            value = TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
-        } catch (TLVException | VlIntException e) {
-            throw new ComponentException("Nonce.wireDecode: "+e.getMessage());
-        }
-        if(value<0){
-            return false;
-        }
-        this.setNonce(value);
+            // 检查 Type 是否正确
+            if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvNonce))) {
+                return false;
+            }
 
-        return true;
+            // 读取 value
+            long value = TLV.readNonNegativeInteger(block.getValue(), 0, block.getLength().getVlIntValue2Int());
+            if (value < 0) {
+                return false;
+            }
+            this.setNonce(value);
+
+            return true;
+        } catch (TLVException | VlIntException e) {
+            throw new ComponentException("Nonce.wireDecode: " + e.getMessage());
+        }
     }
 }

src/main/java/component/TTL.java

@@ -15,11 +15,11 @@ public class TTL implements IEncodingAble {
      * todo: 后台使用的uint64，故这里用long表示，则理论上可能越界
      * // @Description:
      * 1. 格式如下：
-     * 	TTL = TTL-TYPE TLV-LENGTH NonNegativeInteger
-      */
+     * TTL = TTL-TYPE TLV-LENGTH NonNegativeInteger
+     */
     private long ttl;
 
-    public TTL(){
+    public TTL() {
     }
 
     public TTL(Block block) throws ComponentException {
@@ -28,6 +28,7 @@ public class TTL implements IEncodingAble {
 
     /**
      * 根据 TLV Block 初始化一个 TTL
+     *
      * @param block
      * @return
      */
@@ -37,86 +38,80 @@ public class TTL implements IEncodingAble {
 
     /**
      * 获取 TTL 值
+     *
      * @return
      */
-    public long ttl(){
+    public long ttl() {
         return this.ttl;
     }
 
     /**
      * 设置 TTL 值
+     *
      * @param ttl
      */
-    public void setTtl(long ttl){
-        this.ttl=ttl;
+    public void setTtl(long ttl) {
+        this.ttl = ttl;
     }
 
     /**
      * 将 TTL 线速编码为一个 TLV
+     *
      * @param encoder
      * @return
      */
     @Override
     public int wireEncode(Encoder encoder) throws ComponentException {
-        int totalLength=0;
-        // 编码 TLV-VALUE
-        int tmpLen= 0;
         try {
-            tmpLen = encoder.prependNonNegativeInteger(this.ttl);
-        } catch (EncoderException e) {
-            throw new ComponentException("TTL.wireEncode: "+e.getMessage());
-        }
-        if(tmpLen<=0){
-            return -1;
-        }
-        totalLength+=tmpLen;
+            int totalLength = 0;
+            // 编码 TLV-VALUE
+            int tmpLen = encoder.prependNonNegativeInteger(this.ttl);
+            if (tmpLen <= 0) {
+                return -1;
+            }
+            totalLength += tmpLen;
 
-        // 编码 TLV-LENGTH
-        try {
-            tmpLen=encoder.prependVarNumber(new VlInt(totalLength));
-        } catch (EncoderException e) {
-            throw new ComponentException("TTL.wireEncode: "+e.getMessage());
-        }
-        if(tmpLen<=0){
-            return -1;
-        }
-        totalLength+=tmpLen;
+            // 编码 TLV-LENGTH
+            tmpLen = encoder.prependVarNumber(new VlInt(totalLength));
+            if (tmpLen <= 0) {
+                return -1;
+            }
+            totalLength += tmpLen;
 
-        // 编码 TLV-TYPE
-        try {
-            tmpLen=encoder.prependVarNumber(new VlInt(TLV.TlvTTL));
-        } catch (EncoderException e) {
-            throw new ComponentException("TTL.wireEncode: "+e.getMessage());
-        }
-        if(tmpLen<=0){
-            return -1;
-        }
-        totalLength+=tmpLen;
+            // 编码 TLV-TYPE
+            tmpLen = encoder.prependVarNumber(new VlInt(TLV.TlvTTL));
+            if (tmpLen <= 0) {
+                return -1;
+            }
+            totalLength += tmpLen;
 
-        return totalLength;
+            return totalLength;
+        } catch (EncoderException e) {
+            throw new ComponentException("TTL.wireEncode: " + e.getMessage());
+        }
     }
 
     /**
      * 从 TLV Block 中解码出一个 TTL
+     *
      * @param block
      * @return
      */
     @Override
     public boolean wireDecode(Block block) throws ComponentException {
-        // 检查Type是否正确
-        if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvTTL))){
-            return false;
-        }
-        long value= 0;
         try {
-            value = TLV.readNonNegativeInteger(block.getValue(),0,block.getLength().getVlIntValue2Int());
+            // 检查Type是否正确
+            if (!TLV.expectType(block.getType(), new VlInt(TLV.TlvTTL))) {
+                return false;
+            }
+            long value = TLV.readNonNegativeInteger(block.getValue(), 0, block.getLength().getVlIntValue2Int());
+            if (value < 0) {
+                return false;
+            }
+            this.ttl = value;
+            return true;
         } catch (TLVException | VlIntException e) {
-            throw new ComponentException("TTL.wireDecode: "+e.getMessage());
+            throw new ComponentException("TTL.wireDecode: " + e.getMessage());
         }
-        if(value<0){
-            return false;
-        }
-        this.ttl=value;
-        return true;
     }
 }