ByteArrayOrigin should be able convert a byte[] to a

ByteArrayInputStream.

Author: garydgregory

src/changes/changes.xml

@@ -52,11 +52,14 @@ The <action> type attribute can be add,update,fix,remove.
       <action issue="IO-791" dev="ggregory" type="fix" due-to="Chad Wilson, Gary Gregory">
         Regression in FileUtils.touch() - no longer creates parent directories.
       </action>
-      <!-- ADD -->
       <action dev="ggregory" type="fix" due-to="Gary Gregory">
+        ByteArrayOrigin should be able convert a byte[] to a ByteArrayInputStream.
+      </action>
+      <!-- ADD -->
+      <action dev="ggregory" type="add" due-to="Gary Gregory">
         Add CharSequenceInputStream.Builder.
       </action>
-      <action dev="ggregory" type="fix" due-to="Gary Gregory">
+      <action dev="ggregory" type="add" due-to="Gary Gregory">
         Add AbstractStreamBuilder.setOpenOptions(OpenOption...).
       </action>
       <!-- UPDATE -->

src/main/java/org/apache/commons/io/build/AbstractOrigin.java

@@ -17,6 +17,7 @@
 
 package org.apache.commons.io.build;
 
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -65,6 +66,11 @@ public byte[] getByteArray() {
             return get();
         }
 
+        @Override
+        public InputStream getInputStream(final OpenOption... options) throws IOException {
+            return new ByteArrayInputStream(getByteArray());
+        }
+
     }
 
     /**

src/test/java/org/apache/commons/io/input/MessageDigestCalculatingInputStreamTest.java

@@ -51,6 +51,10 @@ public void test() throws Exception {
                 messageDigestInputStream.consume();
                 assertArrayEquals(expect, messageDigestInputStream.getMessageDigest().digest());
             }
+            try (MessageDigestCalculatingInputStream messageDigestInputStream = MessageDigestCalculatingInputStream.builder().setByteArray(buffer).get()) {
+                messageDigestInputStream.consume();
+                assertArrayEquals(expect, messageDigestInputStream.getMessageDigest().digest());
+            }
         }
     }