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diff --git a/datarouter-prov/src/main/java/com/att/research/datarouter/provisioning/utils/JSONUtilities.java b/datarouter-prov/src/main/java/com/att/research/datarouter/provisioning/utils/JSONUtilities.java
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+/*******************************************************************************
+ * ============LICENSE_START==================================================
+ * * org.onap.dmaap
+ * * ===========================================================================
+ * * Copyright © 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====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+
+
+package com.att.research.datarouter.provisioning.utils;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Collection;
+
+/**
+ * Some utility functions used when creating/validating JSON.
+ *
+ * @author Robert Eby
+ * @version $Id: JSONUtilities.java,v 1.1 2013/04/26 21:00:26 eby Exp $
+ */
+public class JSONUtilities {
+	/**
+	 * Does the String <i>v</i> represent a valid Internet address (with or without a
+	 * mask length appended).
+	 * @param v the string to check
+	 * @return true if valid, false otherwise
+	 */
+	public static boolean validIPAddrOrSubnet(String v) {
+		String[] pp = { v, "" };
+		if (v.indexOf('/') > 0)
+			pp = v.split("/");
+		try {
+			InetAddress addr = InetAddress.getByName(pp[0]);
+			if (pp[1].length() > 0) {
+				// check subnet mask
+				int mask = Integer.parseInt(pp[1]);
+				if (mask > (addr.getAddress().length * 8))
+					return false;
+			}
+			return true;
+		} catch (UnknownHostException e) {
+			return false;
+		}
+	}
+	/**
+	 * Build a JSON array from a collection of Strings.
+	 * @param coll the collection
+	 * @return a String containing a JSON array
+	 */
+	public static String createJSONArray(Collection<String> coll) {
+		StringBuilder sb = new StringBuilder("[");
+		String pfx = "\n";
+		for (String t : coll) {
+			sb.append(pfx).append("  \"").append(t).append("\"");
+			pfx = ",\n";
+		}
+		sb.append("\n]\n");
+		return sb.toString();
+	}
+}