Author: ggregory
Date: Mon Aug 10 19:44:55 2015
New Revision: 1695158

URL: http://svn.apache.org/r1695158
Log:
[CODEC-202] Add BaseNCodec.encode(byte[], int, int) input with offset and 
length parameters for Base64 and Base32.

Modified:
    commons/proper/codec/trunk/src/changes/changes.xml
    
commons/proper/codec/trunk/src/main/java/org/apache/commons/codec/binary/BaseNCodec.java
    
commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base32Test.java
    
commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base64Test.java

Modified: commons/proper/codec/trunk/src/changes/changes.xml
URL: 
http://svn.apache.org/viewvc/commons/proper/codec/trunk/src/changes/changes.xml?rev=1695158&r1=1695157&r2=1695158&view=diff
==============================================================================
--- commons/proper/codec/trunk/src/changes/changes.xml (original)
+++ commons/proper/codec/trunk/src/changes/changes.xml Mon Aug 10 19:44:55 2015
@@ -49,6 +49,7 @@ The <action> type attribute can be add,u
       <action dev="ggregory" type="add" issue="CODEC-195" due-to="Gary 
Gregory">Support SHA-224 in DigestUtils on Java 8</action>         
       <action dev="ggregory" type="add" issue="CODEC-194" due-to="Gary 
Gregory">Support java.nio.ByteBuffer in 
org.apache.commons.codec.binary.Hex</action>         
       <action dev="ggregory" type="add" issue="CODEC-193" due-to="Michael 
Donaghy">Support java.nio.ByteBuffer in DigestUtils</action>         
+      <action dev="ggregory" type="add" issue="CODEC-202" due-to="Oleg 
Kalnichevski">Add BaseNCodec.encode(byte[], int, int) input with offset and 
length parameters for Base64 and Base32.</action>         
     </release>   
     <release version="1.10" date="5 November 2014" description="Feature and 
fix release.">
       <action dev="ggregory" type="add" issue="CODEC-192" due-to="Thomas 
Neidhart">Add Daitch-Mokotoff Soundex</action>   

Modified: 
commons/proper/codec/trunk/src/main/java/org/apache/commons/codec/binary/BaseNCodec.java
URL: 
http://svn.apache.org/viewvc/commons/proper/codec/trunk/src/main/java/org/apache/commons/codec/binary/BaseNCodec.java?rev=1695158&r1=1695157&r2=1695158&view=diff
==============================================================================
--- 
commons/proper/codec/trunk/src/main/java/org/apache/commons/codec/binary/BaseNCodec.java
 (original)
+++ 
commons/proper/codec/trunk/src/main/java/org/apache/commons/codec/binary/BaseNCodec.java
 Mon Aug 10 19:44:55 2015
@@ -419,16 +419,36 @@ public abstract class BaseNCodec impleme
      *
      * @param pArray
      *            a byte array containing binary data
-     * @return A byte array containing only the basen alphabetic character data
+     * @return A byte array containing only the base N alphabetic character 
data
      */
     @Override
     public byte[] encode(final byte[] pArray) {
         if (pArray == null || pArray.length == 0) {
             return pArray;
         }
+        return encode(pArray, 0, pArray.length);
+    }
+
+       /**
+        * Encodes a byte[] containing binary data, into a byte[] containing
+        * characters in the alphabet.
+        *
+        * @param pArray
+        *            a byte array containing binary data
+        * @param offset
+        *            initial offset of the subarray.
+        * @param length
+        *            length of the subarray.
+        * @return A byte array containing only the base N alphabetic character 
data
+        * @since 1.11
+        */
+    public byte[] encode(final byte[] pArray, int offset, int length) {
+        if (pArray == null || pArray.length == 0) {
+            return pArray;
+        }
         final Context context = new Context();
-        encode(pArray, 0, pArray.length, context);
-        encode(pArray, 0, EOF, context); // Notify encoder of EOF.
+        encode(pArray, offset, length, context);
+        encode(pArray, offset, EOF, context); // Notify encoder of EOF.
         final byte[] buf = new byte[context.pos - context.readPos];
         readResults(buf, 0, buf.length, context);
         return buf;

Modified: 
commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base32Test.java
URL: 
http://svn.apache.org/viewvc/commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base32Test.java?rev=1695158&r1=1695157&r2=1695158&view=diff
==============================================================================
--- 
commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base32Test.java
 (original)
+++ 
commons/proper/codec/trunk/src/test/java/org/apache/commons/codec/binary/Base32Test.java
 Mon Aug 10 19:44:55 2015
@@ -26,6 +26,7 @@ import java.nio.charset.Charset;
 import java.util.Arrays;
 
 import org.apache.commons.codec.Charsets;
+import org.apache.commons.lang3.ArrayUtils;
 import org.junit.Test;
 
 public class Base32Test {
@@ -74,6 +75,31 @@ public class Base32Test {
         {"foobar" ,"MZXW6YTBOI%%%%%%"},
     };
 
+       @Test
+       public void testBase64AtBufferStart() {
+               testBase64InBuffer(0, 100);
+       }
+
+       @Test
+       public void testBase64AtBufferEnd() {
+               testBase64InBuffer(100, 0);
+       }
+
+       @Test
+       public void testBase64AtBufferMiddle() {
+               testBase64InBuffer(100, 100);
+       }
+
+       private void testBase64InBuffer(int startPasSize, int endPadSize) {
+               final Base32 codec = new Base32();
+               for (final String[] element : BASE32_TEST_CASES) {
+                       final byte[] bytes = element[0].getBytes(CHARSET_UTF8);
+                       byte[] buffer = ArrayUtils.addAll(bytes, new 
byte[endPadSize]);
+                       buffer = ArrayUtils.addAll(new byte[startPasSize], 
buffer);
+                       assertEquals(element[1], 
StringUtils.newStringUtf8(codec.encode(buffer, startPasSize, bytes.length)));
+               }
+       }
+
     @Test
     public void testBase32Chunked () throws Exception {
         final Base32 codec = new Base32(20);


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