1 files changed, 62 insertions, 0 deletions
diff --git a/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java b/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java
new file mode 100644
index 0000000..9d786d0
--- /dev/null
+++ b/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java
@@ -0,0 +1,62 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * sdc-distribution-client
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.utils;
+
+import java.util.regex.Pattern;
+
+import org.apache.commons.codec.binary.Base64;
+
+public class GeneralUtils {
+	
+	public static String calculateMD5 (String data){
+		String calculatedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(data);
+		// encode base-64 result
+		byte[] encodeBase64 = Base64.encodeBase64(calculatedMd5.getBytes());
+		String encodeBase64Str = new String(encodeBase64);
+		return encodeBase64Str;
+
+	} 
+	
+	public static String calculateMD5(byte[] decodedPayload) {
+		String decodedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(decodedPayload);
+		byte[] encodeMd5 = Base64.encodeBase64(decodedMd5.getBytes());
+		return new String(encodeMd5);
+	}
+	
+	public static boolean isBase64Encoded(String str){
+		 boolean isEncoded = false;
+	       try
+	       {
+	           // If no exception is caught, then it is possibly a base64 encoded string
+	           byte[] data = Base64.decodeBase64(str);
+	           // checks if the string was properly padded to the
+	           isEncoded=  ((str.length() % 4 == 0) && (Pattern.matches("\\A[a-zA-Z0-9/+]+={1,2}\\z", str)));
+	          
+	       }
+	       catch (Exception e)
+	       {
+	           // If exception is caught, then it is not a base64 encoded string
+	    	   isEncoded=  false;
+	       }
+	       return isEncoded;
+	}
+
+}