1 files changed, 45 insertions, 0 deletions
diff --git a/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CheckSumHelper.java b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CheckSumHelper.java
new file mode 100644
index 00000000..d6ad0742
--- /dev/null
+++ b/sli/common/src/main/java/org/onap/ccsdk/sli/core/sli/CheckSumHelper.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * 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.onap.ccsdk.sli.core.sli;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import javax.xml.bind.DatatypeConverter;
+
+public class CheckSumHelper {
+
+  public static String md5SumFromFile(String pathToFile) throws NoSuchAlgorithmException, IOException {
+    byte[] b = Files.readAllBytes(Paths.get(pathToFile));
+    return md5SumFromByteArray(b);
+  }
+
+  private static String md5SumFromByteArray(byte[] input) throws NoSuchAlgorithmException {
+    byte[] hash = MessageDigest.getInstance("MD5").digest(input);
+    String hexString = DatatypeConverter.printHexBinary(hash);
+    return hexString.toLowerCase();
+  }
+
+}