Added basic two basic examples, refactor rename restbucks

to restbucksCRUD

examples/restbucksCRUD/src/utils/etag_utils.e

@@ -0,0 +1,33 @@
+note
+	description: "Summary description for {ETAG_UTILS}."
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	ETAG_UTILS
+
+inherit
+	ARRAY_FACILITIES
+
+feature -- Access
+
+	md5_digest (a_string: STRING): STRING
+			-- Cryptographic hash function that produces a 128-bit (16-byte) hash value, based on `a_string'
+		local
+			md5: MD5
+			output: SPECIAL [NATURAL_8]
+		do
+			create md5.make
+			create output.make_filled (0, 16)
+			md5.sink_string (a_string)
+			md5.do_final (output, 0)
+			Result := as_natural_32_be (output, 0).to_hex_string
+			Result.append (as_natural_32_be (output, 4).to_hex_string)
+			Result.append (as_natural_32_be (output, 8).to_hex_string)
+			Result.append (as_natural_32_be (output, 12).to_hex_string)
+		end
+
+note
+	copyright: "2011-2011, Javier Velilla and others"
+	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
+end