1 files changed, 79 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-TUSCANY-3909/databinding-xstream/src/main/java/org/apache/tuscany/sca/databinding/xstream/Utils.java b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/databinding-xstream/src/main/java/org/apache/tuscany/sca/databinding/xstream/Utils.java
new file mode 100644
index 0000000000..d819975910
--- /dev/null
+++ b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/databinding-xstream/src/main/java/org/apache/tuscany/sca/databinding/xstream/Utils.java
@@ -0,0 +1,79 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.databinding.xstream;
+
+import java.io.IOException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+/**
+ * Utility methods.
+ *
+ * @version $Rev$ $Date$
+ */
+public class Utils {
+    public static String toBase64(byte[] array) {
+        String code = null;
+        code = new sun.misc.BASE64Encoder().encode(array);
+        return code;
+    }
+
+    public static byte[] fromBase64(String bytecode) {
+        byte[] dec = null;
+        try {
+            dec = new sun.misc.BASE64Decoder().decodeBuffer(bytecode);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return dec;
+    }
+
+    public static String uniqueID() {
+        try {
+            //Initialize SecureRandom
+            //This is a lengthy operation, to be done only upon
+            //initialization of the application
+            SecureRandom prng = SecureRandom.getInstance("SHA1PRNG");
+
+            //generate a random number
+            String randomNum = Integer.toString(prng.nextInt());
+
+            //get its digest
+            MessageDigest sha = MessageDigest.getInstance("SHA-1");
+            byte[] result = sha.digest(randomNum.getBytes());
+            return hexEncode(result);
+        } catch (NoSuchAlgorithmException ex) {
+            ex.printStackTrace();
+        }
+        return null;
+    }
+
+    private static String hexEncode(byte[] aInput) {
+        StringBuffer result = new StringBuffer();
+        char[] digits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+        for (int idx = 0; idx < aInput.length; ++idx) {
+            byte b = aInput[idx];
+            result.append(digits[(b & 0xf0) >> 4]);
+            result.append(digits[b & 0x0f]);
+        }
+        return result.toString();
+    }
+
+}