From 264666fc721e7d7ee799285fdbf12ede8937905e Mon Sep 17 00:00:00 2001
From: kohsuke <kohsuke@71c3de6d-444a-0410-be80-ed276b4c234a>
Date: Wed, 15 Sep 2010 17:56:14 +0000
Subject: [PATCH] added hex dump support

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@34828 71c3de6d-444a-0410-be80-ed276b4c234a
---
 .../main/java/hudson/remoting/HexDump.java    | 21 +++++++++++++++++++
 .../java/hudson/remoting/HexDumpTest.java     | 12 +++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 remoting/src/main/java/hudson/remoting/HexDump.java
 create mode 100644 remoting/src/test/java/hudson/remoting/HexDumpTest.java

diff --git a/remoting/src/main/java/hudson/remoting/HexDump.java b/remoting/src/main/java/hudson/remoting/HexDump.java
new file mode 100644
index 0000000000..a476846dc4
--- /dev/null
+++ b/remoting/src/main/java/hudson/remoting/HexDump.java
@@ -0,0 +1,21 @@
+package hudson.remoting;
+
+/**
+ * @author Kohsuke Kawaguchi
+ */
+public class HexDump {
+    private static final String CODE = "0123456789abcdef";
+
+    public static String toHex(byte[] buf) {
+        return toHex(buf,0,buf.length);
+    }
+    public static String toHex(byte[] buf, int start, int len) {
+        StringBuilder r = new StringBuilder(len*2);
+        for (int i=0; i<len; i++) {
+            byte b = buf[start+i];
+            r.append(CODE.charAt((b>>4)&15));
+            r.append(CODE.charAt(b&15));
+        }
+        return r.toString();
+    }
+}
diff --git a/remoting/src/test/java/hudson/remoting/HexDumpTest.java b/remoting/src/test/java/hudson/remoting/HexDumpTest.java
new file mode 100644
index 0000000000..a522ebde42
--- /dev/null
+++ b/remoting/src/test/java/hudson/remoting/HexDumpTest.java
@@ -0,0 +1,12 @@
+package hudson.remoting;
+
+import junit.framework.TestCase;
+
+/**
+ * @author Kohsuke Kawaguchi
+ */
+public class HexDumpTest extends TestCase {
+    public  void test1() {
+        assertEquals("0001ff",HexDump.toHex(new byte[]{0,1,-1}));
+    }
+}
-- 
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