svn commit: r1226540 - /incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java

[an...@apache.org]

Author: andy
Date: Mon Jan  2 20:23:39 2012
New Revision: 1226540

URL: http://svn.apache.org/viewvc?rev=1226540&view=rev
Log:
Add byte-to-hexstring ops

Modified:
    incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java

Modified: incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java
URL: http://svn.apache.org/viewvc/incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java?rev=1226540&r1=1226539&r2=1226540&view=diff
==============================================================================
--- incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java (original)
+++ incubator/jena/Jena2/ARQ/trunk/src/main/java/org/openjena/atlas/lib/Bytes.java Mon Jan  2 20:23:39 2012
@@ -352,6 +352,33 @@ public class Bytes
         return sw.toString() ;
     }
     
+    /** Return a hex string representing the bytes, zero padded to length of byte array. */
+    public static String asHex(byte b)
+    {
+        return asHexUC(b) ; 
+    }
+
+    public static String asHexUC(byte b)
+    {
+        return asHex(b, Chars.hexDigitsUC) ; 
+    }
+
+    public static String asHexLC(byte b)
+    {
+        return asHex(b, Chars.hexDigitsLC) ; 
+    }
+    
+    private static String asHex(byte b, char[] hexDigits)
+    {
+        int hi = (b & 0xF0) >> 4 ;
+        int lo = b & 0xF ;
+        char[] chars = new char[2] ;
+        chars[0] = hexDigits[hi] ;
+        chars[1] = hexDigits[lo] ;
+        return new String(chars) ;
+    }
+
+    
     public static int hexCharToInt(char c)
     {
         if ( '0' <= c && c <= '9' )