add error handle: ComponentException & PacketException

src/main/java/component/MutableDangerousField.java

@@ -57,7 +57,7 @@ public class MutableDangerousField implements TlvComponentBase, IEncodingAble {
      * @return
      */
     @Override
-    public int wireEncode(Encoder encoder) throws EncoderException {
+    public int wireEncode(Encoder encoder) throws ComponentException {
         // 如果可变非受保护区没有任何子 TLV，则可以去掉可变非受保护区 TLV
         if(this.blocks.length()==0){
             return -1;
@@ -67,7 +67,12 @@ public class MutableDangerousField implements TlvComponentBase, IEncodingAble {
         // 编码TLV-VALUE
         // 反向遍历，可以保证解码的时候正向输出
         for(int i=this.blocks.length()-1;i>=0;i++){
-            int tmplen=encoder.prependBlock(this.blocks.getBlock(i));
+            int tmplen= 0;
+            try {
+                tmplen = encoder.prependBlock(this.blocks.getBlock(i));
+            } catch (EncoderException e) {
+                throw new ComponentException("MutableDangerousField.wireEncode: "+e.getMessage());
+            }
             if(tmplen<=0){
                 return -1;
             }
@@ -75,14 +80,23 @@ public class MutableDangerousField implements TlvComponentBase, IEncodingAble {
         }
 
         // 编码 TLV-LENGTH
-        int tmplen=encoder.prependVarNumber(new VlInt(totalLength));
+        int tmplen= 0;
+        try {
+            tmplen = encoder.prependVarNumber(new VlInt(totalLength));
+        } catch (EncoderException e) {
+            throw new ComponentException("MutableDangerousField.wireEncode: "+e.getMessage());
+        }
         if(tmplen<=0){
             return -1;
         }
         totalLength+=tmplen;
 
         // 编码 TLV-TYPE
-        tmplen=encoder.prependVarNumber(new VlInt(TLV.TlvReadOnlyField));
+        try {
+            tmplen=encoder.prependVarNumber(new VlInt(TLV.TlvReadOnlyField));
+        } catch (EncoderException e) {
+            throw new ComponentException("MutableDangerousField.wireEncode: "+e.getMessage());
+        }
         if(tmplen<=0){
             return -1;
         }
@@ -97,15 +111,19 @@ public class MutableDangerousField implements TlvComponentBase, IEncodingAble {
      * @return
      */
     @Override
-    public boolean wireDecode(Block block) {
+    public boolean wireDecode(Block block) throws ComponentException {
         // 检查 Type 是否正确
         if(!TLV.expectType(block.getType(),new VlInt(TLV.TlvReadOnlyField))){
             return false;
         }
 
         // 解析子 TLV
-        if(!block.parseSubElements()){
-            return false;
+        try {
+            if(!block.parseSubElements()){
+                return false;
+            }
+        } catch (BlockException e) {
+            throw new ComponentException("MutableDangerousField.wireDecode: "+e.getMessage());
         }
 
         this.blocks=block.getSubElements();