2 files changed, 19 insertions, 1 deletions
diff --git a/src/org/traccar/helper/ChannelBufferTools.java b/src/org/traccar/helper/ChannelBufferTools.java
index 09e3d5191..ef9384138 100644
--- a/src/org/traccar/helper/ChannelBufferTools.java
+++ b/src/org/traccar/helper/ChannelBufferTools.java
@@ -15,6 +15,7 @@
  */
 package org.traccar.helper;
 
+import java.math.BigInteger;
 import java.util.Formatter;
 import org.jboss.netty.buffer.ChannelBuffer;
 import org.traccar.protocol.IntellitracFrameDecoder;
@@ -144,4 +145,16 @@ public class ChannelBufferTools {
         return out;
     }
 
+    /**
+     * Convert byte array to hex string
+     */
+    public static String convertByteArray(byte[] in) {
+        StringBuilder out = new StringBuilder();
+        Formatter formatter = new Formatter(out);
+        for (byte b : in) {
+            formatter.format("%02x", b);
+        }
+        return out.toString();
+    }
+
 }
diff --git a/test/org/traccar/helper/ChannelBufferToolsTest.java b/test/org/traccar/helper/ChannelBufferToolsTest.java
index 67c58058b..90f5e82ae 100644
--- a/test/org/traccar/helper/ChannelBufferToolsTest.java
+++ b/test/org/traccar/helper/ChannelBufferToolsTest.java
@@ -34,7 +34,12 @@ public class ChannelBufferToolsTest {
 
     @Test
     public void convertHexStringTest() {
-        assertArrayEquals(ChannelBufferTools.convertHexString("1234"), new byte[] {0x12,0x34});
+        assertArrayEquals(new byte[] {0x12,0x34}, ChannelBufferTools.convertHexString("1234"));
+    }
+
+    @Test
+    public void convertHexByteArray() {
+        assertEquals("1234", ChannelBufferTools.convertByteArray(new byte[] {0x12,0x34}));
     }
 
 }