Initial project commit

lib/nightscout/com/eveningoutpost/dexdrip/G5Model/Extensions.java

@@ -0,0 +1,39 @@
+package com.eveningoutpost.dexdrip.G5Model;
+
+/**
+ * Created by joeginley on 3/19/16.
+ */
+public class Extensions {
+
+    public static String bytesToHex(byte[] in) {
+        final StringBuilder builder = new StringBuilder();
+        for(byte b : in) {
+            builder.append(String.format("%02x", b));
+        }
+        return builder.toString();
+    }
+
+    public static byte[] hexToBytes(String s) {
+        int len = s.length();
+        byte[] data = new byte[len / 2];
+        for (int i = 0; i < len; i += 2) {
+            data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+                    + Character.digit(s.charAt(i+1), 16));
+        }
+        return data;
+    }
+
+    public static String lastTwoCharactersOfString(final String s) {
+        if (s == null) return "NULL";
+        return s.length() > 1 ? s.substring(s.length() - 2) : "ERR-" + s;
+    }
+
+    public static void doSleep(long time) {
+        try {
+            Thread.sleep(time);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+}