Merge pull request #12 from kullanici0606/master

Add ber tag factory to parser to allow custom tag creation.

src/main/java/com/payneteasy/tlv/BerTagFactory.java

@@ -0,0 +1,5 @@
+package com.payneteasy.tlv;
+
+public interface BerTagFactory {
+	BerTag createTag(byte[] aBuf, int aOffset, int aLength);
+}

src/main/java/com/payneteasy/tlv/BerTlvParser.java

@@ -9,16 +9,28 @@
  */
 public class BerTlvParser {
 
+	private static final BerTagFactory DEFAULT_TAG_FACTORY = new DefaultBerTagFactory();
+
+	private final BerTagFactory tagFactory;
     private final IBerTlvLogger log;
 
     public BerTlvParser() {
-        this(EMPTY_LOGGER);
+        this(DEFAULT_TAG_FACTORY, EMPTY_LOGGER);
     }
 
     public BerTlvParser(IBerTlvLogger aLogger) {
-        log = aLogger;
+    	this(DEFAULT_TAG_FACTORY, aLogger);
     }
-
+
+    public BerTlvParser(BerTagFactory aTagFactory) {
+    	this(aTagFactory, EMPTY_LOGGER);
+    }
+
+    public BerTlvParser(BerTagFactory aTagFactory, IBerTlvLogger aLogger) {
+    	tagFactory = aTagFactory;
+    	log = aLogger;
+    }
+
     public BerTlv parseConstructed(byte[] aBuf) {
         return parseConstructed(aBuf, 0, aBuf.length);
     }
@@ -164,7 +176,7 @@ private BerTag createTag(String aLevelPadding, byte[] aBuf, int aOffset, int aLe
         if(log.isDebugEnabled()) {
             log.debug("{}Creating tag {}...", aLevelPadding, HexUtil.toFormattedHexString(aBuf, aOffset, aLength));
         }
-        return new BerTag(aBuf, aOffset, aLength);
+        return tagFactory.createTag(aBuf, aOffset, aLength);
     }
 
     private int getTagBytesCount(byte[] aBuf, int aOffset) {

src/main/java/com/payneteasy/tlv/DefaultBerTagFactory.java

@@ -0,0 +1,10 @@
+package com.payneteasy.tlv;
+
+public class DefaultBerTagFactory implements BerTagFactory {
+
+	@Override
+	public BerTag createTag(byte[] aBuf, int aOffset, int aLength) {
+		return new BerTag(aBuf, aOffset, aLength);
+	}
+
+}