Add copyTo(byte[], int) to AnyObjectId

This permits formatting in hex into an existing byte array
supplied by the caller, and mirrors our copyRawTo method
with the same parameter signature.

Change-Id: Ia078d83e338b09b903bfd2d04284e5283f885a19
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/AnyObjectId.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/AnyObjectId.java
index c4c26a28e29a775ef99406bb009747503cd49053..e2060a0afa01bb0843ac1f4053fdb1388798cdec 100644 (file)
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/AnyObjectId.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/AnyObjectId.java
@@ -323,6 +323,22 @@ public abstract class AnyObjectId implements Comparable {
                w.write(toHexByteArray());
        }
 
+       /**
+        * Copy this ObjectId to a byte array in hex format.
+        *
+        * @param b
+        *            the buffer to copy to.
+        * @param o
+        *            the offset within b to write at.
+        */
+       public void copyTo(byte[] b, int o) {
+               formatHexByte(b, o + 0, w1);
+               formatHexByte(b, o + 8, w2);
+               formatHexByte(b, o + 16, w3);
+               formatHexByte(b, o + 24, w4);
+               formatHexByte(b, o + 32, w5);
+       }
+
        private byte[] toHexByteArray() {
                final byte[] dst = new byte[Constants.OBJECT_ID_STRING_LENGTH];
                formatHexByte(dst, 0, w1);